Merge branch 'traccar:master' into master

819 files changed, 21913 insertions, 10855 deletions

diff --git a/src/main/java/org/traccar/BasePipelineFactory.java b/src/main/java/org/traccar/BasePipelineFactory.java
index 89ef76a80..5b48f3d15 100644
--- a/src/main/java/org/traccar/BasePipelineFactory.java
+++ b/src/main/java/org/traccar/BasePipelineFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,6 +15,7 @@
  */
 package org.traccar;
 
+import com.google.inject.Injector;
 import io.netty.channel.Channel;
 import io.netty.channel.ChannelHandler;
 import io.netty.channel.ChannelInboundHandler;
@@ -22,7 +23,9 @@ import io.netty.channel.ChannelInitializer;
 import io.netty.channel.ChannelOutboundHandler;
 import io.netty.channel.ChannelPipeline;
 import io.netty.handler.timeout.IdleStateHandler;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
+import org.traccar.handler.AcknowledgementHandler;
 import org.traccar.handler.ComputedAttributesHandler;
 import org.traccar.handler.CopyAttributesHandler;
 import org.traccar.handler.DefaultDataHandler;
@@ -30,9 +33,11 @@ import org.traccar.handler.DistanceHandler;
 import org.traccar.handler.EngineHoursHandler;
 import org.traccar.handler.FilterHandler;
 import org.traccar.handler.GeocoderHandler;
+import org.traccar.handler.GeofenceHandler;
 import org.traccar.handler.GeolocationHandler;
 import org.traccar.handler.HemisphereHandler;
 import org.traccar.handler.MotionHandler;
+import org.traccar.handler.NetworkForwarderHandler;
 import org.traccar.handler.NetworkMessageHandler;
 import org.traccar.handler.OpenChannelHandler;
 import org.traccar.handler.RemoteAddressHandler;
@@ -43,10 +48,11 @@ import org.traccar.handler.events.AlertEventHandler;
 import org.traccar.handler.events.BehaviorEventHandler;
 import org.traccar.handler.events.CommandResultEventHandler;
 import org.traccar.handler.events.DriverEventHandler;
-import org.traccar.handler.events.FuelDropEventHandler;
+import org.traccar.handler.events.FuelEventHandler;
 import org.traccar.handler.events.GeofenceEventHandler;
 import org.traccar.handler.events.IgnitionEventHandler;
 import org.traccar.handler.events.MaintenanceEventHandler;
+import org.traccar.handler.events.MediaEventHandler;
 import org.traccar.handler.events.MotionEventHandler;
 import org.traccar.handler.events.OverspeedEventHandler;
 
@@ -54,16 +60,22 @@ import java.util.Map;
 
 public abstract class BasePipelineFactory extends ChannelInitializer<Channel> {
 
+    private final Injector injector;
     private final TrackerConnector connector;
+    private final Config config;
     private final String protocol;
-    private int timeout;
+    private final int timeout;
 
-    public BasePipelineFactory(TrackerConnector connector, String protocol) {
+    public BasePipelineFactory(TrackerConnector connector, Config config, String protocol) {
+        this.injector = Main.getInjector();
         this.connector = connector;
+        this.config = config;
         this.protocol = protocol;
-        timeout = Context.getConfig().getInteger(Keys.PROTOCOL_TIMEOUT.withPrefix(protocol));
+        int timeout = config.getInteger(Keys.PROTOCOL_TIMEOUT.withPrefix(protocol));
         if (timeout == 0) {
-            timeout = Context.getConfig().getInteger(Keys.SERVER_TIMEOUT);
+            this.timeout = config.getInteger(Keys.SERVER_TIMEOUT);
+        } else {
+            this.timeout = timeout;
         }
     }
 
@@ -75,7 +87,7 @@ public abstract class BasePipelineFactory extends ChannelInitializer<Channel> {
     private void addHandlers(ChannelPipeline pipeline, Class<? extends ChannelHandler>... handlerClasses) {
         for (Class<? extends ChannelHandler> handlerClass : handlerClasses) {
             if (handlerClass != null) {
-                pipeline.addLast(Main.getInjector().getInstance(handlerClass));
+                pipeline.addLast(injector.getInstance(handlerClass));
             }
         }
     }
@@ -105,11 +117,22 @@ public abstract class BasePipelineFactory extends ChannelInitializer<Channel> {
             pipeline.addLast(new IdleStateHandler(timeout, 0, 0));
         }
         pipeline.addLast(new OpenChannelHandler(connector));
+        if (config.hasKey(Keys.SERVER_FORWARD)) {
+            int port = config.getInteger(Keys.PROTOCOL_PORT.withPrefix(protocol));
+            var handler = new NetworkForwarderHandler(port);
+            injector.injectMembers(handler);
+            pipeline.addLast(handler);
+        }
         pipeline.addLast(new NetworkMessageHandler());
         pipeline.addLast(new StandardLoggingHandler(protocol));
+        if (!connector.isDatagram() && !config.getBoolean(Keys.SERVER_INSTANT_ACKNOWLEDGEMENT)) {
+            pipeline.addLast(new AcknowledgementHandler());
+        }
 
         addProtocolHandlers(handler -> {
-            if (!(handler instanceof BaseProtocolDecoder || handler instanceof BaseProtocolEncoder)) {
+            if (handler instanceof BaseProtocolDecoder || handler instanceof BaseProtocolEncoder) {
+                injector.injectMembers(handler);
+            } else {
                 if (handler instanceof ChannelInboundHandler) {
                     handler = new WrapperInboundHandler((ChannelInboundHandler) handler);
                 } else {
@@ -127,26 +150,27 @@ public abstract class BasePipelineFactory extends ChannelInitializer<Channel> {
                 DistanceHandler.class,
                 RemoteAddressHandler.class,
                 FilterHandler.class,
+                GeofenceHandler.class,
                 GeocoderHandler.class,
                 SpeedLimitHandler.class,
                 MotionHandler.class,
                 CopyAttributesHandler.class,
                 EngineHoursHandler.class,
                 ComputedAttributesHandler.class,
-                WebDataHandler.class,
+                PositionForwardingHandler.class,
                 DefaultDataHandler.class,
+                MediaEventHandler.class,
                 CommandResultEventHandler.class,
                 OverspeedEventHandler.class,
                 BehaviorEventHandler.class,
-                FuelDropEventHandler.class,
+                FuelEventHandler.class,
                 MotionEventHandler.class,
                 GeofenceEventHandler.class,
                 AlertEventHandler.class,
                 IgnitionEventHandler.class,
                 MaintenanceEventHandler.class,
-                DriverEventHandler.class);
-
-        pipeline.addLast(new MainEventHandler());
+                DriverEventHandler.class,
+                MainEventHandler.class);
     }
 
 }
diff --git a/src/main/java/org/traccar/BaseProtocol.java b/src/main/java/org/traccar/BaseProtocol.java
index 52d34dc44..ea302997c 100644
--- a/src/main/java/org/traccar/BaseProtocol.java
+++ b/src/main/java/org/traccar/BaseProtocol.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,7 +21,10 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.helper.DataConverter;
 import org.traccar.model.Command;
+import org.traccar.sms.SmsManager;
 
+import jakarta.annotation.Nullable;
+import jakarta.inject.Inject;
 import java.net.SocketAddress;
 import java.util.Arrays;
 import java.util.Collection;
@@ -37,6 +40,8 @@ public abstract class BaseProtocol implements Protocol {
     private final Set<String> supportedTextCommands = new HashSet<>();
     private final List<TrackerConnector> connectorList = new LinkedList<>();
 
+    private SmsManager smsManager;
+
     private StringProtocolEncoder textCommandEncoder = null;
 
     public static String nameFromClass(Class<?> clazz) {
@@ -48,6 +53,11 @@ public abstract class BaseProtocol implements Protocol {
         name = nameFromClass(getClass());
     }
 
+    @Inject
+    public void setSmsManager(@Nullable SmsManager smsManager) {
+        this.smsManager = smsManager;
+    }
+
     @Override
     public String getName() {
         return name;
@@ -95,7 +105,8 @@ public abstract class BaseProtocol implements Protocol {
         } else if (command.getType().equals(Command.TYPE_CUSTOM)) {
             String data = command.getString(Command.KEY_DATA);
             if (BasePipelineFactory.getHandler(channel.pipeline(), StringEncoder.class) != null) {
-                channel.writeAndFlush(new NetworkMessage(data, remoteAddress));
+                channel.writeAndFlush(new NetworkMessage(
+                        data.replace("\\r", "\r").replace("\\n", "\n"), remoteAddress));
             } else {
                 ByteBuf buf = Unpooled.wrappedBuffer(DataConverter.parseHex(data));
                 channel.writeAndFlush(new NetworkMessage(buf, remoteAddress));
@@ -111,13 +122,13 @@ public abstract class BaseProtocol implements Protocol {
 
     @Override
     public void sendTextCommand(String destAddress, Command command) throws Exception {
-        if (Context.getSmsManager() != null) {
+        if (smsManager != null) {
             if (command.getType().equals(Command.TYPE_CUSTOM)) {
-                Context.getSmsManager().sendMessageSync(destAddress, command.getString(Command.KEY_DATA), true);
+                smsManager.sendMessage(destAddress, command.getString(Command.KEY_DATA), true);
             } else if (supportedTextCommands.contains(command.getType()) && textCommandEncoder != null) {
                 String encodedCommand = (String) textCommandEncoder.encodeCommand(command);
                 if (encodedCommand != null) {
-                    Context.getSmsManager().sendMessageSync(destAddress, encodedCommand, true);
+                    smsManager.sendMessage(destAddress, encodedCommand, true);
                 } else {
                     throw new RuntimeException("Failed to encode command");
                 }
diff --git a/src/main/java/org/traccar/BaseProtocolDecoder.java b/src/main/java/org/traccar/BaseProtocolDecoder.java
index a40756796..69ca0ccc6 100644
--- a/src/main/java/org/traccar/BaseProtocolDecoder.java
+++ b/src/main/java/org/traccar/BaseProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,47 +15,82 @@
  */
 package org.traccar;
 
+import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
-import io.netty.channel.socket.DatagramChannel;
-import io.netty.handler.codec.http.HttpRequestDecoder;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.traccar.config.Config;
 import org.traccar.config.Keys;
 import org.traccar.database.CommandsManager;
-import org.traccar.database.ConnectionManager;
-import org.traccar.database.IdentityManager;
+import org.traccar.database.MediaManager;
 import org.traccar.database.StatisticsManager;
 import org.traccar.helper.UnitsConverter;
+import org.traccar.helper.model.AttributeUtil;
 import org.traccar.model.Command;
 import org.traccar.model.Device;
 import org.traccar.model.Position;
+import org.traccar.session.ConnectionManager;
+import org.traccar.session.DeviceSession;
+import org.traccar.session.cache.CacheManager;
+import org.traccar.storage.StorageException;
 
+import jakarta.inject.Inject;
 import java.net.InetSocketAddress;
 import java.net.SocketAddress;
 import java.util.Collection;
 import java.util.Date;
-import java.util.HashMap;
 import java.util.HashSet;
-import java.util.Map;
 import java.util.Set;
 import java.util.TimeZone;
 
 public abstract class BaseProtocolDecoder extends ExtendedObjectDecoder {
 
-    private static final Logger LOGGER = LoggerFactory.getLogger(BaseProtocolDecoder.class);
-
     private static final String PROTOCOL_UNKNOWN = "unknown";
 
-    private final Config config = Context.getConfig();
-    private final IdentityManager identityManager = Context.getIdentityManager();
-    private final ConnectionManager connectionManager = Context.getConnectionManager();
-    private final StatisticsManager statisticsManager;
     private final Protocol protocol;
 
+    private CacheManager cacheManager;
+    private ConnectionManager connectionManager;
+    private StatisticsManager statisticsManager;
+    private MediaManager mediaManager;
+    private CommandsManager commandsManager;
+
     public BaseProtocolDecoder(Protocol protocol) {
         this.protocol = protocol;
-        statisticsManager = Main.getInjector() != null ? Main.getInjector().getInstance(StatisticsManager.class) : null;
+    }
+
+    public CacheManager getCacheManager() {
+        return cacheManager;
+    }
+
+    @Inject
+    public void setCacheManager(CacheManager cacheManager) {
+        this.cacheManager = cacheManager;
+    }
+
+    @Inject
+    public void setConnectionManager(ConnectionManager connectionManager) {
+        this.connectionManager = connectionManager;
+    }
+
+    @Inject
+    public void setStatisticsManager(StatisticsManager statisticsManager) {
+        this.statisticsManager = statisticsManager;
+    }
+
+    @Inject
+    public void setMediaManager(MediaManager mediaManager) {
+        this.mediaManager = mediaManager;
+    }
+
+    @Inject
+    public void setCommandsManager(CommandsManager commandsManager) {
+        this.commandsManager = commandsManager;
+    }
+
+    public CommandsManager getCommandsManager() {
+        return commandsManager;
+    }
+
+    public String writeMediaFile(String uniqueId, ByteBuf buf, String extension) {
+        return mediaManager.writeFile(uniqueId, buf, extension);
     }
 
     public String getProtocolName() {
@@ -63,7 +98,7 @@ public abstract class BaseProtocolDecoder extends ExtendedObjectDecoder {
     }
 
     public String getServer(Channel channel, char delimiter) {
-        String server = config.getString(Keys.PROTOCOL_SERVER.withPrefix(getProtocolName()));
+        String server = getConfig().getString(Keys.PROTOCOL_SERVER.withPrefix(getProtocolName()));
         if (server == null && channel != null) {
             InetSocketAddress address = (InetSocketAddress) channel.localAddress();
             server = address.getAddress().getHostAddress() + ":" + address.getPort();
@@ -72,7 +107,7 @@ public abstract class BaseProtocolDecoder extends ExtendedObjectDecoder {
     }
 
     protected double convertSpeed(double value, String defaultUnits) {
-        switch (config.getString(getProtocolName() + ".speed", defaultUnits)) {
+        switch (getConfig().getString(getProtocolName() + ".speed", defaultUnits)) {
             case "kmh":
                 return UnitsConverter.knotsFromKph(value);
             case "mps":
@@ -91,101 +126,18 @@ public abstract class BaseProtocolDecoder extends ExtendedObjectDecoder {
 
     protected TimeZone getTimeZone(long deviceId, String defaultTimeZone) {
         TimeZone result = TimeZone.getTimeZone(defaultTimeZone);
-        String timeZoneName = identityManager.lookupAttributeString(deviceId, "decoder.timezone", null, false, true);
+        String timeZoneName = AttributeUtil.lookup(cacheManager, Keys.DECODER_TIMEZONE, deviceId);
         if (timeZoneName != null) {
             result = TimeZone.getTimeZone(timeZoneName);
         }
         return result;
     }
 
-    private DeviceSession channelDeviceSession; // connection-based protocols
-    private final Map<SocketAddress, DeviceSession> addressDeviceSessions = new HashMap<>(); // connectionless protocols
-
-    private long findDeviceId(SocketAddress remoteAddress, String... uniqueIds) {
-        if (uniqueIds.length > 0) {
-            long deviceId = 0;
-            Device device = null;
-            try {
-                for (String uniqueId : uniqueIds) {
-                    if (uniqueId != null) {
-                        device = identityManager.getByUniqueId(uniqueId);
-                        if (device != null) {
-                            deviceId = device.getId();
-                            break;
-                        }
-                    }
-                }
-            } catch (Exception e) {
-                LOGGER.warn("Find device error", e);
-            }
-            if (deviceId == 0 && config.getBoolean(Keys.DATABASE_REGISTER_UNKNOWN)) {
-                return identityManager.addUnknownDevice(uniqueIds[0]);
-            }
-            if (device != null && !device.getDisabled()) {
-                return deviceId;
-            }
-            StringBuilder message = new StringBuilder();
-            if (deviceId == 0) {
-                message.append("Unknown device -");
-            } else {
-                message.append("Disabled device -");
-            }
-            for (String uniqueId : uniqueIds) {
-                message.append(" ").append(uniqueId);
-            }
-            if (remoteAddress != null) {
-                message.append(" (").append(((InetSocketAddress) remoteAddress).getHostString()).append(")");
-            }
-            LOGGER.warn(message.toString());
-        }
-        return 0;
-    }
-
     public DeviceSession getDeviceSession(Channel channel, SocketAddress remoteAddress, String... uniqueIds) {
-        return getDeviceSession(channel, remoteAddress, false, uniqueIds);
-    }
-
-    public DeviceSession getDeviceSession(
-            Channel channel, SocketAddress remoteAddress, boolean ignoreCache, String... uniqueIds) {
-        if (channel != null && BasePipelineFactory.getHandler(channel.pipeline(), HttpRequestDecoder.class) != null
-                || ignoreCache || config.getBoolean(Keys.PROTOCOL_IGNORE_SESSIONS_CACHE.withPrefix(getProtocolName()))
-                || config.getBoolean(Keys.DECODER_IGNORE_SESSIONS_CACHE)) {
-            long deviceId = findDeviceId(remoteAddress, uniqueIds);
-            if (deviceId != 0) {
-                if (connectionManager != null) {
-                    connectionManager.addActiveDevice(deviceId, protocol, channel, remoteAddress);
-                }
-                return new DeviceSession(deviceId);
-            } else {
-                return null;
-            }
-        }
-        if (channel instanceof DatagramChannel) {
-            long deviceId = findDeviceId(remoteAddress, uniqueIds);
-            DeviceSession deviceSession = addressDeviceSessions.get(remoteAddress);
-            if (deviceSession != null && (deviceSession.getDeviceId() == deviceId || uniqueIds.length == 0)) {
-                return deviceSession;
-            } else if (deviceId != 0) {
-                deviceSession = new DeviceSession(deviceId);
-                addressDeviceSessions.put(remoteAddress, deviceSession);
-                if (connectionManager != null) {
-                    connectionManager.addActiveDevice(deviceId, protocol, channel, remoteAddress);
-                }
-                return deviceSession;
-            } else {
-                return null;
-            }
-        } else {
-            if (channelDeviceSession == null) {
-                long deviceId = findDeviceId(remoteAddress, uniqueIds);
-                if (deviceId != 0) {
-                    channelDeviceSession = new DeviceSession(deviceId);
-                    if (connectionManager != null) {
-                        connectionManager.addActiveDevice(deviceId, protocol, channel, remoteAddress);
-                    }
-                }
-            }
-            return channelDeviceSession;
+        try {
+            return connectionManager.getDeviceSession(protocol, channel, remoteAddress, uniqueIds);
+        } catch (StorageException e) {
+            throw new RuntimeException(e);
         }
     }
 
@@ -193,7 +145,7 @@ public abstract class BaseProtocolDecoder extends ExtendedObjectDecoder {
         if (position.getDeviceId() != 0) {
             position.setOutdated(true);
 
-            Position last = identityManager.getLastPosition(position.getDeviceId());
+            Position last = cacheManager.getPosition(position.getDeviceId());
             if (last != null) {
                 position.setFixTime(last.getFixTime());
                 position.setValid(last.getValid());
@@ -245,18 +197,15 @@ public abstract class BaseProtocolDecoder extends ExtendedObjectDecoder {
     }
 
     protected void sendQueuedCommands(Channel channel, SocketAddress remoteAddress, long deviceId) {
-        CommandsManager commandsManager = Context.getCommandsManager();
-        if (commandsManager != null) {
-            for (Command command : commandsManager.readQueuedCommands(deviceId)) {
-                protocol.sendDataCommand(channel, remoteAddress, command);
-            }
+        for (Command command : commandsManager.readQueuedCommands(deviceId)) {
+            protocol.sendDataCommand(channel, remoteAddress, command);
         }
     }
 
     @Override
     protected Object handleEmptyMessage(Channel channel, SocketAddress remoteAddress, Object msg) {
         DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
-        if (config.getBoolean(Keys.DATABASE_SAVE_EMPTY) && deviceSession != null) {
+        if (getConfig().getBoolean(Keys.DATABASE_SAVE_EMPTY) && deviceSession != null) {
             Position position = new Position(getProtocolName());
             position.setDeviceId(deviceSession.getDeviceId());
             getLastLocation(position, null);
diff --git a/src/main/java/org/traccar/BaseProtocolEncoder.java b/src/main/java/org/traccar/BaseProtocolEncoder.java
index b6df07b98..b9ca16838 100644
--- a/src/main/java/org/traccar/BaseProtocolEncoder.java
+++ b/src/main/java/org/traccar/BaseProtocolEncoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,7 +21,13 @@ import io.netty.channel.ChannelOutboundHandlerAdapter;
 import io.netty.channel.ChannelPromise;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.traccar.helper.NetworkUtil;
+import org.traccar.helper.model.AttributeUtil;
 import org.traccar.model.Command;
+import org.traccar.model.Device;
+import org.traccar.session.cache.CacheManager;
+
+import jakarta.inject.Inject;
 
 public abstract class BaseProtocolEncoder extends ChannelOutboundHandlerAdapter {
 
@@ -31,22 +37,33 @@ public abstract class BaseProtocolEncoder extends ChannelOutboundHandlerAdapter
 
     private final Protocol protocol;
 
+    private CacheManager cacheManager;
+
     public BaseProtocolEncoder(Protocol protocol) {
         this.protocol = protocol;
     }
 
+    public CacheManager getCacheManager() {
+        return cacheManager;
+    }
+
+    @Inject
+    public void setCacheManager(CacheManager cacheManager) {
+        this.cacheManager = cacheManager;
+    }
+
     public String getProtocolName() {
         return protocol != null ? protocol.getName() : PROTOCOL_UNKNOWN;
     }
 
     protected String getUniqueId(long deviceId) {
-        return Context.getIdentityManager().getById(deviceId).getUniqueId();
+        return cacheManager.getObject(Device.class, deviceId).getUniqueId();
     }
 
     protected void initDevicePassword(Command command, String defaultPassword) {
-        if (!command.getAttributes().containsKey(Command.KEY_DEVICE_PASSWORD)) {
-            String password = Context.getIdentityManager()
-                .getDevicePassword(command.getDeviceId(), getProtocolName(), defaultPassword);
+        if (!command.hasAttribute(Command.KEY_DEVICE_PASSWORD)) {
+            String password = AttributeUtil.getDevicePassword(
+                    cacheManager, command.getDeviceId(), getProtocolName(), defaultPassword);
             command.set(Command.KEY_DEVICE_PASSWORD, password);
         }
     }
@@ -54,31 +71,30 @@ public abstract class BaseProtocolEncoder extends ChannelOutboundHandlerAdapter
     @Override
     public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
 
-        NetworkMessage networkMessage = (NetworkMessage) msg;
+        if (msg instanceof NetworkMessage) {
+            NetworkMessage networkMessage = (NetworkMessage) msg;
+            if (networkMessage.getMessage() instanceof Command) {
 
-        if (networkMessage.getMessage() instanceof Command) {
+                Command command = (Command) networkMessage.getMessage();
+                Object encodedCommand = encodeCommand(ctx.channel(), command);
 
-            Command command = (Command) networkMessage.getMessage();
-            Object encodedCommand = encodeCommand(ctx.channel(), command);
+                StringBuilder s = new StringBuilder();
+                s.append("[").append(NetworkUtil.session(ctx.channel())).append("] ");
+                s.append("id: ").append(getUniqueId(command.getDeviceId())).append(", ");
+                s.append("command type: ").append(command.getType()).append(" ");
+                if (encodedCommand != null) {
+                    s.append("sent");
+                } else {
+                    s.append("not sent");
+                }
+                LOGGER.info(s.toString());
 
-            StringBuilder s = new StringBuilder();
-            s.append("[").append(ctx.channel().id().asShortText()).append("] ");
-            s.append("id: ").append(getUniqueId(command.getDeviceId())).append(", ");
-            s.append("command type: ").append(command.getType()).append(" ");
-            if (encodedCommand != null) {
-                s.append("sent");
-            } else {
-                s.append("not sent");
-            }
-            LOGGER.info(s.toString());
-
-            ctx.write(new NetworkMessage(encodedCommand, networkMessage.getRemoteAddress()), promise);
-
-        } else {
-
-            super.write(ctx, msg, promise);
+                ctx.write(new NetworkMessage(encodedCommand, networkMessage.getRemoteAddress()), promise);
 
+                return;
+            }
         }
+        super.write(ctx, msg, promise);
     }
 
     protected Object encodeCommand(Channel channel, Command command) {
diff --git a/src/main/java/org/traccar/Context.java b/src/main/java/org/traccar/Context.java
deleted file mode 100644
index aeba9c4c9..000000000
--- a/src/main/java/org/traccar/Context.java
+++ /dev/null
@@ -1,416 +0,0 @@
-/*
- * Copyright 2015 - 2021 Anton Tananaev (anton@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar;
-
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.SerializationFeature;
-import com.fasterxml.jackson.datatype.jsr353.JSR353Module;
-import org.apache.velocity.app.VelocityEngine;
-import org.eclipse.jetty.util.URIUtil;
-import org.traccar.config.Config;
-import org.traccar.config.Keys;
-import org.traccar.database.AttributesManager;
-import org.traccar.database.BaseObjectManager;
-import org.traccar.database.CalendarManager;
-import org.traccar.database.CommandsManager;
-import org.traccar.database.ConnectionManager;
-import org.traccar.database.DataManager;
-import org.traccar.database.DeviceManager;
-import org.traccar.database.DriversManager;
-import org.traccar.database.GeofenceManager;
-import org.traccar.database.GroupsManager;
-import org.traccar.database.IdentityManager;
-import org.traccar.database.LdapProvider;
-import org.traccar.database.MailManager;
-import org.traccar.database.MaintenancesManager;
-import org.traccar.database.MediaManager;
-import org.traccar.database.NotificationManager;
-import org.traccar.database.OrderManager;
-import org.traccar.database.PermissionsManager;
-import org.traccar.database.UsersManager;
-import org.traccar.geocoder.Geocoder;
-import org.traccar.helper.Log;
-import org.traccar.helper.SanitizerModule;
-import org.traccar.model.Attribute;
-import org.traccar.model.BaseModel;
-import org.traccar.model.Calendar;
-import org.traccar.model.Command;
-import org.traccar.model.Device;
-import org.traccar.model.Driver;
-import org.traccar.model.Geofence;
-import org.traccar.model.Group;
-import org.traccar.model.Maintenance;
-import org.traccar.model.Notification;
-import org.traccar.model.Order;
-import org.traccar.model.User;
-import org.traccar.notification.EventForwarder;
-import org.traccar.notification.NotificatorManager;
-import org.traccar.reports.model.TripsConfig;
-import org.traccar.schedule.ScheduleManager;
-import org.traccar.sms.HttpSmsClient;
-import org.traccar.sms.SmsManager;
-import org.traccar.sms.SnsSmsClient;
-import org.traccar.web.WebServer;
-
-import javax.ws.rs.client.Client;
-import javax.ws.rs.client.ClientBuilder;
-import javax.ws.rs.ext.ContextResolver;
-import java.net.InetAddress;
-import java.net.UnknownHostException;
-import java.util.Properties;
-
-public final class Context {
-
-    private Context() {
-    }
-
-    private static Config config;
-
-    public static Config getConfig() {
-        return config;
-    }
-
-    private static ObjectMapper objectMapper;
-
-    public static ObjectMapper getObjectMapper() {
-        return objectMapper;
-    }
-
-    private static IdentityManager identityManager;
-
-    public static IdentityManager getIdentityManager() {
-        return identityManager;
-    }
-
-    private static DataManager dataManager;
-
-    public static DataManager getDataManager() {
-        return dataManager;
-    }
-
-    private static LdapProvider ldapProvider;
-
-    public static LdapProvider getLdapProvider() {
-        return ldapProvider;
-    }
-
-    private static MailManager mailManager;
-
-    public static MailManager getMailManager() {
-        return mailManager;
-    }
-
-    private static MediaManager mediaManager;
-
-    public static MediaManager getMediaManager() {
-        return mediaManager;
-    }
-
-    private static UsersManager usersManager;
-
-    public static UsersManager getUsersManager() {
-        return usersManager;
-    }
-
-    private static GroupsManager groupsManager;
-
-    public static GroupsManager getGroupsManager() {
-        return groupsManager;
-    }
-
-    private static DeviceManager deviceManager;
-
-    public static DeviceManager getDeviceManager() {
-        return deviceManager;
-    }
-
-    private static ConnectionManager connectionManager;
-
-    public static ConnectionManager getConnectionManager() {
-        return connectionManager;
-    }
-
-    private static PermissionsManager permissionsManager;
-
-    public static PermissionsManager getPermissionsManager() {
-        return permissionsManager;
-    }
-
-    public static Geocoder getGeocoder() {
-        return Main.getInjector() != null ? Main.getInjector().getInstance(Geocoder.class) : null;
-    }
-
-    private static WebServer webServer;
-
-    public static WebServer getWebServer() {
-        return webServer;
-    }
-
-    private static ServerManager serverManager;
-
-    public static ServerManager getServerManager() {
-        return serverManager;
-    }
-
-    private static ScheduleManager scheduleManager;
-
-    public static ScheduleManager getScheduleManager() {
-        return scheduleManager;
-    }
-
-    private static GeofenceManager geofenceManager;
-
-    public static GeofenceManager getGeofenceManager() {
-        return geofenceManager;
-    }
-
-    private static CalendarManager calendarManager;
-
-    public static CalendarManager getCalendarManager() {
-        return calendarManager;
-    }
-
-    private static NotificationManager notificationManager;
-
-    public static NotificationManager getNotificationManager() {
-        return notificationManager;
-    }
-
-    private static NotificatorManager notificatorManager;
-
-    public static NotificatorManager getNotificatorManager() {
-        return notificatorManager;
-    }
-
-    private static VelocityEngine velocityEngine;
-
-    public static VelocityEngine getVelocityEngine() {
-        return velocityEngine;
-    }
-
-    private static Client client = ClientBuilder.newClient();
-
-    public static Client getClient() {
-        return client;
-    }
-
-    private static EventForwarder eventForwarder;
-
-    public static EventForwarder getEventForwarder() {
-        return eventForwarder;
-    }
-
-    private static AttributesManager attributesManager;
-
-    public static AttributesManager getAttributesManager() {
-        return attributesManager;
-    }
-
-    private static DriversManager driversManager;
-
-    public static DriversManager getDriversManager() {
-        return driversManager;
-    }
-
-    private static CommandsManager commandsManager;
-
-    public static CommandsManager getCommandsManager() {
-        return commandsManager;
-    }
-
-    private static MaintenancesManager maintenancesManager;
-
-    public static MaintenancesManager getMaintenancesManager() {
-        return maintenancesManager;
-    }
-
-    private static OrderManager orderManager;
-
-    public static OrderManager getOrderManager() {
-        return orderManager;
-    }
-
-    private static SmsManager smsManager;
-
-    public static SmsManager getSmsManager() {
-        return smsManager;
-    }
-
-    private static TripsConfig tripsConfig;
-
-    public static TripsConfig getTripsConfig() {
-        return tripsConfig;
-    }
-
-    public static TripsConfig initTripsConfig() {
-        return new TripsConfig(
-                config.getLong(Keys.REPORT_TRIP_MINIMAL_TRIP_DISTANCE),
-                config.getLong(Keys.REPORT_TRIP_MINIMAL_TRIP_DURATION) * 1000,
-                config.getLong(Keys.REPORT_TRIP_MINIMAL_PARKING_DURATION) * 1000,
-                config.getLong(Keys.REPORT_TRIP_MINIMAL_NO_DATA_DURATION) * 1000,
-                config.getBoolean(Keys.REPORT_TRIP_USE_IGNITION),
-                config.getBoolean(Keys.EVENT_MOTION_PROCESS_INVALID_POSITIONS),
-                config.getDouble(Keys.EVENT_MOTION_SPEED_THRESHOLD));
-    }
-
-    private static class ObjectMapperContextResolver implements ContextResolver<ObjectMapper> {
-
-        @Override
-        public ObjectMapper getContext(Class<?> clazz) {
-            return objectMapper;
-        }
-
-    }
-
-    public static void init(String configFile) throws Exception {
-
-        try {
-            config = new Config(configFile);
-            Log.setupLogger(config);
-        } catch (Exception e) {
-            config = new Config();
-            Log.setupDefaultLogger();
-            throw e;
-        }
-
-        objectMapper = new ObjectMapper();
-        objectMapper.registerModule(new SanitizerModule());
-        objectMapper.registerModule(new JSR353Module());
-        objectMapper.setConfig(
-                objectMapper.getSerializationConfig().without(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS));
-
-        client = ClientBuilder.newClient().register(new ObjectMapperContextResolver());
-
-        if (config.hasKey(Keys.DATABASE_URL)) {
-            dataManager = new DataManager(config);
-        }
-
-        if (config.hasKey(Keys.LDAP_URL)) {
-            ldapProvider = new LdapProvider(config);
-        }
-
-        mailManager = new MailManager();
-
-        mediaManager = new MediaManager(config.getString(Keys.MEDIA_PATH));
-
-        if (dataManager != null) {
-            usersManager = new UsersManager(dataManager);
-            groupsManager = new GroupsManager(dataManager);
-            deviceManager = new DeviceManager(dataManager);
-        }
-
-        identityManager = deviceManager;
-
-        if (config.hasKey(Keys.WEB_PORT)) {
-            webServer = new WebServer(config);
-        }
-
-        permissionsManager = new PermissionsManager(dataManager, usersManager);
-
-        connectionManager = new ConnectionManager();
-
-        tripsConfig = initTripsConfig();
-
-        if (config.hasKey(Keys.SMS_HTTP_URL)) {
-            smsManager = new HttpSmsClient();
-        } else if (config.hasKey(Keys.SMS_AWS_REGION)) {
-            smsManager = new SnsSmsClient();
-        }
-
-        initEventsModule();
-
-        serverManager = new ServerManager();
-        scheduleManager = new ScheduleManager();
-
-        if (config.hasKey(Keys.EVENT_FORWARD_URL)) {
-            eventForwarder = new EventForwarder();
-        }
-
-        attributesManager = new AttributesManager(dataManager);
-
-        driversManager = new DriversManager(dataManager);
-
-        commandsManager = new CommandsManager(dataManager, config.getBoolean(Keys.COMMANDS_QUEUEING));
-
-        orderManager = new OrderManager(dataManager);
-
-    }
-
-    private static void initEventsModule() {
-
-        geofenceManager = new GeofenceManager(dataManager);
-        calendarManager = new CalendarManager(dataManager);
-        maintenancesManager = new MaintenancesManager(dataManager);
-        notificationManager = new NotificationManager(dataManager);
-        notificatorManager = new NotificatorManager();
-        Properties velocityProperties = new Properties();
-        velocityProperties.setProperty("file.resource.loader.path",
-                Context.getConfig().getString("templates.rootPath", "templates") + "/");
-        velocityProperties.setProperty("runtime.log.logsystem.class",
-                "org.apache.velocity.runtime.log.NullLogChute");
-
-        String address;
-        try {
-            address = config.getString(Keys.WEB_ADDRESS, InetAddress.getLocalHost().getHostAddress());
-        } catch (UnknownHostException e) {
-            address = "localhost";
-        }
-
-        String webUrl = URIUtil.newURI("http", address, config.getInteger(Keys.WEB_PORT), "", "");
-        webUrl = Context.getConfig().getString("web.url", webUrl);
-        velocityProperties.setProperty("web.url", webUrl);
-
-        velocityEngine = new VelocityEngine();
-        velocityEngine.init(velocityProperties);
-    }
-
-    public static void init(IdentityManager testIdentityManager, MediaManager testMediaManager) {
-        config = new Config();
-        objectMapper = new ObjectMapper();
-        objectMapper.registerModule(new JSR353Module());
-        client = ClientBuilder.newClient().register(new ObjectMapperContextResolver());
-        identityManager = testIdentityManager;
-        mediaManager = testMediaManager;
-    }
-
-    public static <T extends BaseModel> BaseObjectManager<T> getManager(Class<T> clazz) {
-        if (clazz.equals(Device.class)) {
-            return (BaseObjectManager<T>) deviceManager;
-        } else if (clazz.equals(Group.class)) {
-            return (BaseObjectManager<T>) groupsManager;
-        } else if (clazz.equals(User.class)) {
-            return (BaseObjectManager<T>) usersManager;
-        } else if (clazz.equals(Calendar.class)) {
-            return (BaseObjectManager<T>) calendarManager;
-        } else if (clazz.equals(Attribute.class)) {
-            return (BaseObjectManager<T>) attributesManager;
-        } else if (clazz.equals(Geofence.class)) {
-            return (BaseObjectManager<T>) geofenceManager;
-        } else if (clazz.equals(Driver.class)) {
-            return (BaseObjectManager<T>) driversManager;
-        } else if (clazz.equals(Command.class)) {
-            return (BaseObjectManager<T>) commandsManager;
-        } else if (clazz.equals(Maintenance.class)) {
-            return (BaseObjectManager<T>) maintenancesManager;
-        } else if (clazz.equals(Notification.class)) {
-            return (BaseObjectManager<T>) notificationManager;
-        } else if (clazz.equals(Order.class)) {
-            return (BaseObjectManager<T>) orderManager;
-        }
-        return null;
-    }
-
-}
diff --git a/src/main/java/org/traccar/ExtendedObjectDecoder.java b/src/main/java/org/traccar/ExtendedObjectDecoder.java
index 46720da52..cddddcd80 100644
--- a/src/main/java/org/traccar/ExtendedObjectDecoder.java
+++ b/src/main/java/org/traccar/ExtendedObjectDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,18 +21,40 @@ import io.netty.channel.Channel;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;
 import io.netty.util.ReferenceCountUtil;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
+import org.traccar.handler.AcknowledgementHandler;
 import org.traccar.helper.DataConverter;
 import org.traccar.model.Position;
 
+import jakarta.inject.Inject;
 import java.net.SocketAddress;
 import java.nio.charset.StandardCharsets;
 import java.util.Collection;
+import java.util.List;
 
 public abstract class ExtendedObjectDecoder extends ChannelInboundHandlerAdapter {
 
+    private Config config;
+
+    public Config getConfig() {
+        return config;
+    }
+
+    @Inject
+    public void setConfig(Config config) {
+        this.config = config;
+        init();
+    }
+
+    /**
+     * Method called when config is initialized.
+     */
+    protected void init() {
+    }
+
     private void saveOriginal(Object decodedMessage, Object originalMessage) {
-        if (Context.getConfig().getBoolean(Keys.DATABASE_SAVE_ORIGINAL) && decodedMessage instanceof Position) {
+        if (getConfig().getBoolean(Keys.DATABASE_SAVE_ORIGINAL) && decodedMessage instanceof Position) {
             Position position = (Position) decodedMessage;
             if (originalMessage instanceof ByteBuf) {
                 ByteBuf buf = (ByteBuf) originalMessage;
@@ -48,6 +70,7 @@ public abstract class ExtendedObjectDecoder extends ChannelInboundHandlerAdapter
     public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
         NetworkMessage networkMessage = (NetworkMessage) msg;
         Object originalMessage = networkMessage.getMessage();
+        ctx.writeAndFlush(new AcknowledgementHandler.EventReceived());
         try {
             Object decodedMessage = decode(ctx.channel(), networkMessage.getRemoteAddress(), originalMessage);
             onMessageEvent(ctx.channel(), networkMessage.getRemoteAddress(), originalMessage, decodedMessage);
@@ -56,14 +79,19 @@ public abstract class ExtendedObjectDecoder extends ChannelInboundHandlerAdapter
             }
             if (decodedMessage != null) {
                 if (decodedMessage instanceof Collection) {
-                    for (Object o : (Collection) decodedMessage) {
+                    var collection = (Collection) decodedMessage;
+                    ctx.writeAndFlush(new AcknowledgementHandler.EventDecoded(collection));
+                    for (Object o : collection) {
                         saveOriginal(o, originalMessage);
                         ctx.fireChannelRead(o);
                     }
                 } else {
+                    ctx.writeAndFlush(new AcknowledgementHandler.EventDecoded(List.of(decodedMessage)));
                     saveOriginal(decodedMessage, originalMessage);
                     ctx.fireChannelRead(decodedMessage);
                 }
+            } else {
+                ctx.writeAndFlush(new AcknowledgementHandler.EventDecoded(List.of()));
             }
         } finally {
             ReferenceCountUtil.release(originalMessage);
diff --git a/src/main/java/org/traccar/LifecycleObject.java b/src/main/java/org/traccar/LifecycleObject.java
index 7af21d528..fe0dc698a 100644
--- a/src/main/java/org/traccar/LifecycleObject.java
+++ b/src/main/java/org/traccar/LifecycleObject.java
@@ -17,5 +17,5 @@ package org.traccar;
 
 public interface LifecycleObject {
     void start() throws Exception;
-    void stop();
+    void stop() throws Exception;
 }
diff --git a/src/main/java/org/traccar/Main.java b/src/main/java/org/traccar/Main.java
index 6daf72bb4..e34fbb72a 100644
--- a/src/main/java/org/traccar/Main.java
+++ b/src/main/java/org/traccar/Main.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,6 +19,13 @@ import com.google.inject.Guice;
 import com.google.inject.Injector;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.traccar.broadcast.BroadcastService;
+import org.traccar.helper.model.DeviceUtil;
+import org.traccar.schedule.ScheduleManager;
+import org.traccar.storage.DatabaseModule;
+import org.traccar.storage.Storage;
+import org.traccar.web.WebModule;
+import org.traccar.web.WebServer;
 
 import java.io.File;
 import java.lang.management.ManagementFactory;
@@ -26,10 +33,10 @@ import java.lang.management.MemoryMXBean;
 import java.lang.management.OperatingSystemMXBean;
 import java.lang.management.RuntimeMXBean;
 import java.nio.charset.Charset;
-import java.util.Collections;
-import java.util.LinkedList;
-import java.util.List;
 import java.util.Locale;
+import java.util.Objects;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 public final class Main {
 
@@ -110,31 +117,36 @@ public final class Main {
 
     public static void run(String configFile) {
         try {
-            Context.init(configFile);
-            injector = Guice.createInjector(new MainModule());
+            injector = Guice.createInjector(new MainModule(configFile), new DatabaseModule(), new WebModule());
             logSystemInfo();
             LOGGER.info("Version: " + Main.class.getPackage().getImplementationVersion());
             LOGGER.info("Starting server...");
 
-            List<LifecycleObject> services = new LinkedList<>();
-            services.add(Context.getServerManager());
-            if (Context.getWebServer() != null) {
-                services.add(Context.getWebServer());
+            if (injector.getInstance(BroadcastService.class).singleInstance()) {
+                DeviceUtil.resetStatus(injector.getInstance(Storage.class));
             }
-            services.add(Context.getScheduleManager());
 
-            for (LifecycleObject service : services) {
+            var services = Stream.of(
+                    ServerManager.class, WebServer.class, ScheduleManager.class, BroadcastService.class)
+                    .map(injector::getInstance)
+                    .filter(Objects::nonNull)
+                    .collect(Collectors.toList());
+
+            for (var service : services) {
                 service.start();
             }
 
             Thread.setDefaultUncaughtExceptionHandler((t, e) -> LOGGER.error("Thread exception", e));
 
             Runtime.getRuntime().addShutdownHook(new Thread(() -> {
-                LOGGER.info("Shutting down server...");
-
-                Collections.reverse(services);
-                for (LifecycleObject service : services) {
-                    service.stop();
+                LOGGER.info("Stopping server...");
+
+                for (var service : services) {
+                    try {
+                        service.stop();
+                    } catch (Exception e) {
+                        throw new RuntimeException(e);
+                    }
                 }
             }));
         } catch (Exception e) {
diff --git a/src/main/java/org/traccar/MainEventHandler.java b/src/main/java/org/traccar/MainEventHandler.java
index a3f6f4105..fb0171d63 100644
--- a/src/main/java/org/traccar/MainEventHandler.java
+++ b/src/main/java/org/traccar/MainEventHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,6 +16,7 @@
 package org.traccar;
 
 import io.netty.channel.Channel;
+import io.netty.channel.ChannelHandler;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;
 import io.netty.channel.socket.DatagramChannel;
@@ -23,17 +24,32 @@ import io.netty.handler.codec.http.HttpRequestDecoder;
 import io.netty.handler.timeout.IdleStateEvent;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 import org.traccar.database.StatisticsManager;
+import org.traccar.handler.AcknowledgementHandler;
 import org.traccar.helper.DateUtil;
+import org.traccar.helper.NetworkUtil;
+import org.traccar.helper.model.PositionUtil;
+import org.traccar.model.Device;
 import org.traccar.model.Position;
+import org.traccar.session.ConnectionManager;
+import org.traccar.session.cache.CacheManager;
+import org.traccar.storage.Storage;
 import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
 import java.util.Arrays;
 import java.util.HashSet;
 import java.util.LinkedHashSet;
 import java.util.Set;
 
+@Singleton
+@ChannelHandler.Sharable
 public class MainEventHandler extends ChannelInboundHandlerAdapter {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(MainEventHandler.class);
@@ -41,13 +57,24 @@ public class MainEventHandler extends ChannelInboundHandlerAdapter {
     private final Set<String> connectionlessProtocols = new HashSet<>();
     private final Set<String> logAttributes = new LinkedHashSet<>();
 
-    public MainEventHandler() {
-        String connectionlessProtocolList = Context.getConfig().getString(Keys.STATUS_IGNORE_OFFLINE);
+    private final CacheManager cacheManager;
+    private final Storage storage;
+    private final ConnectionManager connectionManager;
+    private final StatisticsManager statisticsManager;
+
+    @Inject
+    public MainEventHandler(
+            Config config, CacheManager cacheManager, Storage storage, ConnectionManager connectionManager,
+            StatisticsManager statisticsManager) {
+        this.cacheManager = cacheManager;
+        this.storage = storage;
+        this.connectionManager = connectionManager;
+        this.statisticsManager = statisticsManager;
+        String connectionlessProtocolList = config.getString(Keys.STATUS_IGNORE_OFFLINE);
         if (connectionlessProtocolList != null) {
             connectionlessProtocols.addAll(Arrays.asList(connectionlessProtocolList.split("[, ]")));
         }
-        logAttributes.addAll(Arrays.asList(
-                Context.getConfig().getString(Keys.LOGGER_ATTRIBUTES).split("[, ]")));
+        logAttributes.addAll(Arrays.asList(config.getString(Keys.LOGGER_ATTRIBUTES).split("[, ]")));
     }
 
     @Override
@@ -55,17 +82,27 @@ public class MainEventHandler extends ChannelInboundHandlerAdapter {
         if (msg instanceof Position) {
 
             Position position = (Position) msg;
+            Device device = cacheManager.getObject(Device.class, position.getDeviceId());
+
             try {
-                Context.getDeviceManager().updateLatestPosition(position);
+                if (PositionUtil.isLatest(cacheManager, position)) {
+                    Device updatedDevice = new Device();
+                    updatedDevice.setId(position.getDeviceId());
+                    updatedDevice.setPositionId(position.getId());
+                    storage.updateObject(updatedDevice, new Request(
+                            new Columns.Include("positionId"),
+                            new Condition.Equals("id", updatedDevice.getId())));
+
+                    cacheManager.updatePosition(position);
+                    connectionManager.updatePosition(true, position);
+                }
             } catch (StorageException error) {
                 LOGGER.warn("Failed to update device", error);
             }
 
-            String uniqueId = Context.getIdentityManager().getById(position.getDeviceId()).getUniqueId();
-
             StringBuilder builder = new StringBuilder();
-            builder.append(formatChannel(ctx.channel())).append(" ");
-            builder.append("id: ").append(uniqueId);
+            builder.append("[").append(NetworkUtil.session(ctx.channel())).append("] ");
+            builder.append("id: ").append(device.getUniqueId());
             for (String attribute : logAttributes) {
                 switch (attribute) {
                     case "time":
@@ -108,31 +145,27 @@ public class MainEventHandler extends ChannelInboundHandlerAdapter {
             }
             LOGGER.info(builder.toString());
 
-            Main.getInjector().getInstance(StatisticsManager.class)
-                    .registerMessageStored(position.getDeviceId(), position.getProtocol());
-        }
-    }
+            statisticsManager.registerMessageStored(position.getDeviceId(), position.getProtocol());
 
-    private static String formatChannel(Channel channel) {
-        return String.format("[%s]", channel.id().asShortText());
+            ctx.writeAndFlush(new AcknowledgementHandler.EventHandled(position));
+        }
     }
 
     @Override
     public void channelActive(ChannelHandlerContext ctx) {
         if (!(ctx.channel() instanceof DatagramChannel)) {
-            LOGGER.info(formatChannel(ctx.channel()) + " connected");
+            LOGGER.info("[{}] connected", NetworkUtil.session(ctx.channel()));
         }
     }
 
     @Override
     public void channelInactive(ChannelHandlerContext ctx) {
-        LOGGER.info(formatChannel(ctx.channel()) + " disconnected");
+        LOGGER.info("[{}] disconnected", NetworkUtil.session(ctx.channel()));
         closeChannel(ctx.channel());
 
-        if (BasePipelineFactory.getHandler(ctx.pipeline(), HttpRequestDecoder.class) == null
-                && !connectionlessProtocols.contains(ctx.pipeline().get(BaseProtocolDecoder.class).getProtocolName())) {
-            Context.getConnectionManager().removeActiveDevice(ctx.channel());
-        }
+        boolean supportsOffline = BasePipelineFactory.getHandler(ctx.pipeline(), HttpRequestDecoder.class) == null
+                && !connectionlessProtocols.contains(ctx.pipeline().get(BaseProtocolDecoder.class).getProtocolName());
+        connectionManager.deviceDisconnected(ctx.channel(), supportsOffline);
     }
 
     @Override
@@ -140,14 +173,14 @@ public class MainEventHandler extends ChannelInboundHandlerAdapter {
         while (cause.getCause() != null && cause.getCause() != cause) {
             cause = cause.getCause();
         }
-        LOGGER.warn(formatChannel(ctx.channel()) + " error", cause);
+        LOGGER.info("[{}] error", NetworkUtil.session(ctx.channel()), cause);
         closeChannel(ctx.channel());
     }
 
     @Override
     public void userEventTriggered(ChannelHandlerContext ctx, Object evt) {
         if (evt instanceof IdleStateEvent) {
-            LOGGER.info(formatChannel(ctx.channel()) + " timed out");
+            LOGGER.info("[{}] timed out", NetworkUtil.session(ctx.channel()));
             closeChannel(ctx.channel());
         }
     }
diff --git a/src/main/java/org/traccar/MainModule.java b/src/main/java/org/traccar/MainModule.java
index 842f7e3ce..6ed240d2c 100644
--- a/src/main/java/org/traccar/MainModule.java
+++ b/src/main/java/org/traccar/MainModule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2018 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,20 +16,36 @@
 package org.traccar;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.datatype.jsonp.JSONPModule;
 import com.google.inject.AbstractModule;
+import com.google.inject.Injector;
 import com.google.inject.Provides;
-import com.google.inject.Singleton;
+import com.google.inject.Scopes;
+import com.google.inject.name.Names;
+import io.netty.util.HashedWheelTimer;
+import io.netty.util.Timer;
+import org.apache.velocity.app.VelocityEngine;
+import org.traccar.broadcast.BroadcastService;
+import org.traccar.broadcast.MulticastBroadcastService;
+import org.traccar.broadcast.RedisBroadcastService;
+import org.traccar.broadcast.NullBroadcastService;
 import org.traccar.config.Config;
 import org.traccar.config.Keys;
-import org.traccar.database.AttributesManager;
-import org.traccar.database.CalendarManager;
-import org.traccar.database.ConnectionManager;
-import org.traccar.database.DataManager;
-import org.traccar.database.DeviceManager;
-import org.traccar.database.GeofenceManager;
-import org.traccar.database.IdentityManager;
-import org.traccar.database.MaintenancesManager;
+import org.traccar.database.LdapProvider;
+import org.traccar.database.OpenIdProvider;
 import org.traccar.database.StatisticsManager;
+import org.traccar.forward.EventForwarder;
+import org.traccar.forward.EventForwarderJson;
+import org.traccar.forward.EventForwarderAmqp;
+import org.traccar.forward.EventForwarderKafka;
+import org.traccar.forward.EventForwarderMqtt;
+import org.traccar.forward.PositionForwarder;
+import org.traccar.forward.PositionForwarderJson;
+import org.traccar.forward.PositionForwarderAmqp;
+import org.traccar.forward.PositionForwarderKafka;
+import org.traccar.forward.PositionForwarderRedis;
+import org.traccar.forward.PositionForwarderUrl;
 import org.traccar.geocoder.AddressFormat;
 import org.traccar.geocoder.BanGeocoder;
 import org.traccar.geocoder.BingMapsGeocoder;
@@ -41,128 +57,146 @@ import org.traccar.geocoder.Geocoder;
 import org.traccar.geocoder.GisgraphyGeocoder;
 import org.traccar.geocoder.GoogleGeocoder;
 import org.traccar.geocoder.HereGeocoder;
+import org.traccar.geocoder.LocationIqGeocoder;
 import org.traccar.geocoder.MapQuestGeocoder;
 import org.traccar.geocoder.MapTilerGeocoder;
+import org.traccar.geocoder.MapboxGeocoder;
 import org.traccar.geocoder.MapmyIndiaGeocoder;
 import org.traccar.geocoder.NominatimGeocoder;
 import org.traccar.geocoder.OpenCageGeocoder;
 import org.traccar.geocoder.PositionStackGeocoder;
+import org.traccar.geocoder.TestGeocoder;
 import org.traccar.geocoder.TomTomGeocoder;
-import org.traccar.geocoder.MapboxGeocoder;
 import org.traccar.geolocation.GeolocationProvider;
 import org.traccar.geolocation.GoogleGeolocationProvider;
 import org.traccar.geolocation.MozillaGeolocationProvider;
 import org.traccar.geolocation.OpenCellIdGeolocationProvider;
 import org.traccar.geolocation.UnwiredGeolocationProvider;
-import org.traccar.handler.ComputedAttributesHandler;
-import org.traccar.handler.CopyAttributesHandler;
-import org.traccar.handler.DefaultDataHandler;
-import org.traccar.handler.DistanceHandler;
-import org.traccar.handler.EngineHoursHandler;
-import org.traccar.handler.FilterHandler;
 import org.traccar.handler.GeocoderHandler;
 import org.traccar.handler.GeolocationHandler;
-import org.traccar.handler.HemisphereHandler;
-import org.traccar.handler.MotionHandler;
-import org.traccar.handler.RemoteAddressHandler;
 import org.traccar.handler.SpeedLimitHandler;
-import org.traccar.handler.TimeHandler;
-import org.traccar.handler.events.AlertEventHandler;
-import org.traccar.handler.events.BehaviorEventHandler;
-import org.traccar.handler.events.CommandResultEventHandler;
-import org.traccar.handler.events.DriverEventHandler;
-import org.traccar.handler.events.FuelDropEventHandler;
-import org.traccar.handler.events.GeofenceEventHandler;
-import org.traccar.handler.events.IgnitionEventHandler;
-import org.traccar.handler.events.MaintenanceEventHandler;
-import org.traccar.handler.events.MotionEventHandler;
-import org.traccar.handler.events.OverspeedEventHandler;
-import org.traccar.reports.model.TripsConfig;
-
-import javax.annotation.Nullable;
-import javax.ws.rs.client.Client;
-import io.netty.util.Timer;
+import org.traccar.helper.ObjectMapperContextResolver;
+import org.traccar.helper.SanitizerModule;
+import org.traccar.helper.WebHelper;
+import org.traccar.mail.LogMailManager;
+import org.traccar.mail.MailManager;
+import org.traccar.mail.SmtpMailManager;
+import org.traccar.session.cache.CacheManager;
+import org.traccar.sms.HttpSmsClient;
+import org.traccar.sms.SmsManager;
+import org.traccar.sms.SnsSmsClient;
 import org.traccar.speedlimit.OverpassSpeedLimitProvider;
 import org.traccar.speedlimit.SpeedLimitProvider;
+import org.traccar.storage.DatabaseStorage;
+import org.traccar.storage.MemoryStorage;
 import org.traccar.storage.Storage;
+import org.traccar.web.WebServer;
+import org.traccar.api.security.LoginService;
+
+import jakarta.annotation.Nullable;
+import jakarta.inject.Singleton;
+import jakarta.ws.rs.client.Client;
+import jakarta.ws.rs.client.ClientBuilder;
+import java.io.IOException;
+import java.net.URISyntaxException;
+import java.net.http.HttpClient;
+import java.util.Properties;
 
 public class MainModule extends AbstractModule {
 
-    @Provides
-    public static ObjectMapper provideObjectMapper() {
-        return Context.getObjectMapper();
-    }
+    private final String configFile;
 
-    @Provides
-    public static Config provideConfig() {
-        return Context.getConfig();
-    }
-
-    @Provides
-    public static Storage provideStorage() {
-        return Context.getDataManager().getStorage();
-    }
-
-    @Provides
-    public static DataManager provideDataManager() {
-        return Context.getDataManager();
-    }
-
-    @Provides
-    public static IdentityManager provideIdentityManager() {
-        return Context.getIdentityManager();
+    public MainModule(String configFile) {
+        this.configFile = configFile;
     }
 
-    @Provides
-    public static ConnectionManager provideConnectionManager() {
-        return Context.getConnectionManager();
+    @Override
+    protected void configure() {
+        bindConstant().annotatedWith(Names.named("configFile")).to(configFile);
+        bind(Config.class).asEagerSingleton();
+        bind(Timer.class).to(HashedWheelTimer.class).in(Scopes.SINGLETON);
     }
 
+    @Singleton
     @Provides
-    public static Client provideClient() {
-        return Context.getClient();
+    public static Storage provideStorage(Injector injector, Config config) {
+        if (config.getBoolean(Keys.DATABASE_MEMORY)) {
+            return injector.getInstance(MemoryStorage.class);
+        } else {
+            return injector.getInstance(DatabaseStorage.class);
+        }
     }
 
+    @Singleton
     @Provides
-    public static TripsConfig provideTripsConfig() {
-        return Context.getTripsConfig();
+    public static ObjectMapper provideObjectMapper(Config config) {
+        ObjectMapper objectMapper = new ObjectMapper();
+        if (config.getBoolean(Keys.WEB_SANITIZE)) {
+            objectMapper.registerModule(new SanitizerModule());
+        }
+        objectMapper.registerModule(new JSONPModule());
+        objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
+        return objectMapper;
     }
 
+    @Singleton
     @Provides
-    public static DeviceManager provideDeviceManager() {
-        return Context.getDeviceManager();
+    public static Client provideClient(ObjectMapperContextResolver objectMapperContextResolver) {
+        return ClientBuilder.newClient().register(objectMapperContextResolver);
     }
 
+    @Singleton
     @Provides
-    public static GeofenceManager provideGeofenceManager() {
-        return Context.getGeofenceManager();
+    public static SmsManager provideSmsManager(Config config, Client client) {
+        if (config.hasKey(Keys.SMS_HTTP_URL)) {
+            return new HttpSmsClient(config, client);
+        } else if (config.hasKey(Keys.SMS_AWS_REGION)) {
+            return new SnsSmsClient(config);
+        }
+        return null;
     }
 
+    @Singleton
     @Provides
-    public static CalendarManager provideCalendarManager() {
-        return Context.getCalendarManager();
+    public static MailManager provideMailManager(Config config, StatisticsManager statisticsManager) {
+        if (config.getBoolean(Keys.MAIL_DEBUG)) {
+            return new LogMailManager();
+        } else {
+            return new SmtpMailManager(config, statisticsManager);
+        }
     }
 
+    @Singleton
     @Provides
-    public static AttributesManager provideAttributesManager() {
-        return Context.getAttributesManager();
+    public static LdapProvider provideLdapProvider(Config config) {
+        if (config.hasKey(Keys.LDAP_URL)) {
+            return new LdapProvider(config);
+        }
+        return null;
     }
 
+    @Singleton
     @Provides
-    public static MaintenancesManager provideMaintenancesManager() {
-        return Context.getMaintenancesManager();
+    public static OpenIdProvider provideOpenIDProvider(
+        Config config, LoginService loginService, ObjectMapper objectMapper
+        ) throws InterruptedException, IOException, URISyntaxException {
+        if (config.hasKey(Keys.OPENID_CLIENT_ID)) {
+            return new OpenIdProvider(config, loginService, HttpClient.newHttpClient(), objectMapper);
+        }
+        return null;
     }
 
-    @Singleton
     @Provides
-    public static StatisticsManager provideStatisticsManager(
-            Config config, DataManager dataManager, Client client, ObjectMapper objectMapper) {
-        return new StatisticsManager(config, dataManager, client, objectMapper);
+    public static WebServer provideWebServer(Injector injector, Config config) {
+        if (config.hasKey(Keys.WEB_PORT)) {
+            return new WebServer(injector, config);
+        }
+        return null;
     }
 
     @Singleton
     @Provides
-    public static Geocoder provideGeocoder(Config config) {
+    public static Geocoder provideGeocoder(Config config, Client client, StatisticsManager statisticsManager) {
         if (config.getBoolean(Keys.GEOCODER_ENABLE)) {
             String type = config.getString(Keys.GEOCODER_TYPE, "google");
             String url = config.getString(Keys.GEOCODER_URL);
@@ -173,62 +207,88 @@ public class MainModule extends AbstractModule {
             AddressFormat addressFormat = formatString != null ? new AddressFormat(formatString) : new AddressFormat();
 
             int cacheSize = config.getInteger(Keys.GEOCODER_CACHE_SIZE);
+            Geocoder geocoder;
             switch (type) {
+                case "test":
+                    geocoder = new TestGeocoder();
+                    break;
                 case "nominatim":
-                    return new NominatimGeocoder(url, key, language, cacheSize, addressFormat);
+                    geocoder = new NominatimGeocoder(client, url, key, language, cacheSize, addressFormat);
+                    break;
+                case "locationiq":
+                    geocoder = new LocationIqGeocoder(client, url, key, language, cacheSize, addressFormat);
+                    break;
                 case "gisgraphy":
-                    return new GisgraphyGeocoder(url, cacheSize, addressFormat);
+                    geocoder = new GisgraphyGeocoder(client, url, cacheSize, addressFormat);
+                    break;
                 case "mapquest":
-                    return new MapQuestGeocoder(url, key, cacheSize, addressFormat);
+                    geocoder = new MapQuestGeocoder(client, url, key, cacheSize, addressFormat);
+                    break;
                 case "opencage":
-                    return new OpenCageGeocoder(url, key, language, cacheSize, addressFormat);
+                    geocoder = new OpenCageGeocoder(client, url, key, language, cacheSize, addressFormat);
+                    break;
                 case "bingmaps":
-                    return new BingMapsGeocoder(url, key, cacheSize, addressFormat);
+                    geocoder = new BingMapsGeocoder(client, url, key, cacheSize, addressFormat);
+                    break;
                 case "factual":
-                    return new FactualGeocoder(url, key, cacheSize, addressFormat);
+                    geocoder = new FactualGeocoder(client, url, key, cacheSize, addressFormat);
+                    break;
                 case "geocodefarm":
-                    return new GeocodeFarmGeocoder(key, language, cacheSize, addressFormat);
+                    geocoder = new GeocodeFarmGeocoder(client, key, language, cacheSize, addressFormat);
+                    break;
                 case "geocodexyz":
-                    return new GeocodeXyzGeocoder(key, cacheSize, addressFormat);
+                    geocoder = new GeocodeXyzGeocoder(client, key, cacheSize, addressFormat);
+                    break;
                 case "ban":
-                    return new BanGeocoder(cacheSize, addressFormat);
+                    geocoder = new BanGeocoder(client, cacheSize, addressFormat);
+                    break;
                 case "here":
-                    return new HereGeocoder(url, id, key, language, cacheSize, addressFormat);
+                    geocoder = new HereGeocoder(client, url, id, key, language, cacheSize, addressFormat);
+                    break;
                 case "mapmyindia":
-                    return new MapmyIndiaGeocoder(url, key, cacheSize, addressFormat);
+                    geocoder = new MapmyIndiaGeocoder(client, url, key, cacheSize, addressFormat);
+                    break;
                 case "tomtom":
-                    return new TomTomGeocoder(url, key, cacheSize, addressFormat);
+                    geocoder = new TomTomGeocoder(client, url, key, cacheSize, addressFormat);
+                    break;
                 case "positionstack":
-                    return new PositionStackGeocoder(key, cacheSize, addressFormat);
+                    geocoder = new PositionStackGeocoder(client, key, cacheSize, addressFormat);
+                    break;
                 case "mapbox":
-                    return new MapboxGeocoder(key, cacheSize, addressFormat);
+                    geocoder = new MapboxGeocoder(client, key, cacheSize, addressFormat);
+                    break;
                 case "maptiler":
-                    return new MapTilerGeocoder(key, cacheSize, addressFormat);
+                    geocoder = new MapTilerGeocoder(client, key, cacheSize, addressFormat);
+                    break;
                 case "geoapify":
-                    return new GeoapifyGeocoder(key, language, cacheSize, addressFormat);
+                    geocoder = new GeoapifyGeocoder(client, key, language, cacheSize, addressFormat);
+                    break;
                 default:
-                    return new GoogleGeocoder(key, language, cacheSize, addressFormat);
+                    geocoder = new GoogleGeocoder(client, key, language, cacheSize, addressFormat);
+                    break;
             }
+            geocoder.setStatisticsManager(statisticsManager);
+            return geocoder;
         }
         return null;
     }
 
     @Singleton
     @Provides
-    public static GeolocationProvider provideGeolocationProvider(Config config) {
+    public static GeolocationProvider provideGeolocationProvider(Config config, Client client) {
         if (config.getBoolean(Keys.GEOLOCATION_ENABLE)) {
             String type = config.getString(Keys.GEOLOCATION_TYPE, "mozilla");
             String url = config.getString(Keys.GEOLOCATION_URL);
             String key = config.getString(Keys.GEOLOCATION_KEY);
             switch (type) {
                 case "google":
-                    return new GoogleGeolocationProvider(key);
+                    return new GoogleGeolocationProvider(client, key);
                 case "opencellid":
-                    return new OpenCellIdGeolocationProvider(url, key);
+                    return new OpenCellIdGeolocationProvider(client, url, key);
                 case "unwired":
-                    return new UnwiredGeolocationProvider(url, key);
+                    return new UnwiredGeolocationProvider(client, url, key);
                 default:
-                    return new MozillaGeolocationProvider(key);
+                    return new MozillaGeolocationProvider(client, key);
             }
         }
         return null;
@@ -236,14 +296,14 @@ public class MainModule extends AbstractModule {
 
     @Singleton
     @Provides
-    public static SpeedLimitProvider provideSpeedLimitProvider(Config config) {
+    public static SpeedLimitProvider provideSpeedLimitProvider(Config config, Client client) {
         if (config.getBoolean(Keys.SPEED_LIMIT_ENABLE)) {
             String type = config.getString(Keys.SPEED_LIMIT_TYPE, "overpass");
             String url = config.getString(Keys.SPEED_LIMIT_URL);
             switch (type) {
                 case "overpass":
                 default:
-                    return new OverpassSpeedLimitProvider(url);
+                    return new OverpassSpeedLimitProvider(client, url);
             }
         }
         return null;
@@ -251,53 +311,11 @@ public class MainModule extends AbstractModule {
 
     @Singleton
     @Provides
-    public static DistanceHandler provideDistanceHandler(Config config, IdentityManager identityManager) {
-        return new DistanceHandler(config, identityManager);
-    }
-
-    @Singleton
-    @Provides
-    public static FilterHandler provideFilterHandler(Config config) {
-        if (config.getBoolean(Keys.FILTER_ENABLE)) {
-            return new FilterHandler(config);
-        }
-        return null;
-    }
-
-    @Singleton
-    @Provides
-    public static HemisphereHandler provideHemisphereHandler(Config config) {
-        if (config.hasKey(Keys.LOCATION_LATITUDE_HEMISPHERE) || config.hasKey(Keys.LOCATION_LONGITUDE_HEMISPHERE)) {
-            return new HemisphereHandler(config);
-        }
-        return null;
-    }
-
-    @Singleton
-    @Provides
-    public static RemoteAddressHandler provideRemoteAddressHandler(Config config) {
-        if (config.getBoolean(Keys.PROCESSING_REMOTE_ADDRESS_ENABLE)) {
-            return new RemoteAddressHandler();
-        }
-        return null;
-    }
-
-    @Singleton
-    @Provides
-    public static WebDataHandler provideWebDataHandler(
-            Config config, IdentityManager identityManager, ObjectMapper objectMapper, Client client) {
-        if (config.hasKey(Keys.FORWARD_URL)) {
-            return new WebDataHandler(config, identityManager, objectMapper, client);
-        }
-        return null;
-    }
-
-    @Singleton
-    @Provides
     public static GeolocationHandler provideGeolocationHandler(
-            Config config, @Nullable GeolocationProvider geolocationProvider, StatisticsManager statisticsManager) {
+            Config config, @Nullable GeolocationProvider geolocationProvider, CacheManager cacheManager,
+            StatisticsManager statisticsManager) {
         if (geolocationProvider != null) {
-            return new GeolocationHandler(config, geolocationProvider, statisticsManager);
+            return new GeolocationHandler(config, geolocationProvider, cacheManager, statisticsManager);
         }
         return null;
     }
@@ -305,9 +323,9 @@ public class MainModule extends AbstractModule {
     @Singleton
     @Provides
     public static GeocoderHandler provideGeocoderHandler(
-            Config config, @Nullable Geocoder geocoder, IdentityManager identityManager) {
+            Config config, @Nullable Geocoder geocoder, CacheManager cacheManager) {
         if (geocoder != null) {
-            return new GeocoderHandler(config, geocoder, identityManager);
+            return new GeocoderHandler(config, geocoder, cacheManager);
         }
         return null;
     }
@@ -323,130 +341,72 @@ public class MainModule extends AbstractModule {
 
     @Singleton
     @Provides
-    public static MotionHandler provideMotionHandler(TripsConfig tripsConfig) {
-        return new MotionHandler(tripsConfig.getSpeedThreshold());
-    }
-
-    @Singleton
-    @Provides
-    public static EngineHoursHandler provideEngineHoursHandler(Config config, IdentityManager identityManager) {
-        if (config.getBoolean(Keys.PROCESSING_ENGINE_HOURS_ENABLE)) {
-            return new EngineHoursHandler(identityManager);
-        }
-        return null;
-    }
-
-    @Singleton
-    @Provides
-    public static CopyAttributesHandler provideCopyAttributesHandler(Config config, IdentityManager identityManager) {
-        if (config.getBoolean(Keys.PROCESSING_COPY_ATTRIBUTES_ENABLE)) {
-            return new CopyAttributesHandler(identityManager);
-        }
-        return null;
-    }
-
-    @Singleton
-    @Provides
-    public static ComputedAttributesHandler provideComputedAttributesHandler(
-            Config config, IdentityManager identityManager, AttributesManager attributesManager) {
-        if (config.getBoolean(Keys.PROCESSING_COMPUTED_ATTRIBUTES_ENABLE)) {
-            return new ComputedAttributesHandler(config, identityManager, attributesManager);
+    public static BroadcastService provideBroadcastService(
+            Config config, ObjectMapper objectMapper) throws IOException {
+        if (config.hasKey(Keys.BROADCAST_TYPE)) {
+            switch (config.getString(Keys.BROADCAST_TYPE)) {
+                case "multicast":
+                    return new MulticastBroadcastService(config, objectMapper);
+                case "redis":
+                    return new RedisBroadcastService(config, objectMapper);
+                default:
+                    break;
+            }
         }
-        return null;
+        return new NullBroadcastService();
     }
 
     @Singleton
     @Provides
-    public static TimeHandler provideTimeHandler(Config config) {
-        if (config.hasKey(Keys.TIME_OVERRIDE)) {
-            return new TimeHandler(config);
+    public static EventForwarder provideEventForwarder(Config config, Client client, ObjectMapper objectMapper) {
+        if (config.hasKey(Keys.EVENT_FORWARD_URL)) {
+            String forwardType = config.getString(Keys.EVENT_FORWARD_TYPE);
+            switch (forwardType) {
+                case "amqp":
+                    return new EventForwarderAmqp(config, objectMapper);
+                case "kafka":
+                    return new EventForwarderKafka(config, objectMapper);
+                case "mqtt":
+                    return new EventForwarderMqtt(config, objectMapper);
+                case "json":
+                default:
+                    return new EventForwarderJson(config, client);
+            }
         }
         return null;
     }
 
     @Singleton
     @Provides
-    public static DefaultDataHandler provideDefaultDataHandler(@Nullable DataManager dataManager) {
-        if (dataManager != null) {
-            return new DefaultDataHandler(dataManager);
+    public static PositionForwarder providePositionForwarder(Config config, Client client, ObjectMapper objectMapper) {
+        if (config.hasKey(Keys.FORWARD_URL)) {
+            switch (config.getString(Keys.FORWARD_TYPE)) {
+                case "json":
+                    return new PositionForwarderJson(config, client, objectMapper);
+                case "amqp":
+                    return new PositionForwarderAmqp(config, objectMapper);
+                case "kafka":
+                    return new PositionForwarderKafka(config, objectMapper);
+                case "redis":
+                    return new PositionForwarderRedis(config, objectMapper);
+                case "url":
+                default:
+                    return new PositionForwarderUrl(config, client, objectMapper);
+            }
         }
         return null;
     }
 
     @Singleton
     @Provides
-    public static CommandResultEventHandler provideCommandResultEventHandler() {
-        return new CommandResultEventHandler();
-    }
+    public static VelocityEngine provideVelocityEngine(Config config) {
+        Properties properties = new Properties();
+        properties.setProperty("resource.loader.file.path", config.getString(Keys.TEMPLATES_ROOT) + "/");
+        properties.setProperty("web.url", WebHelper.retrieveWebUrl(config));
 
-    @Singleton
-    @Provides
-    public static OverspeedEventHandler provideOverspeedEventHandler(
-            Config config, DeviceManager deviceManager, GeofenceManager geofenceManager) {
-        return new OverspeedEventHandler(config, deviceManager, geofenceManager);
-    }
-
-    @Singleton
-    @Provides
-    public static BehaviorEventHandler provideBehaviorEventHandler(Config config, IdentityManager identityManager) {
-        return new BehaviorEventHandler(config, identityManager);
-    }
-
-    @Singleton
-    @Provides
-    public static FuelDropEventHandler provideFuelDropEventHandler(IdentityManager identityManager) {
-        return new FuelDropEventHandler(identityManager);
-    }
-
-    @Singleton
-    @Provides
-    public static MotionEventHandler provideMotionEventHandler(
-            IdentityManager identityManager, DeviceManager deviceManager, TripsConfig tripsConfig) {
-        return new MotionEventHandler(identityManager, deviceManager, tripsConfig);
-    }
-
-    @Singleton
-    @Provides
-    public static GeofenceEventHandler provideGeofenceEventHandler(
-            IdentityManager identityManager, GeofenceManager geofenceManager, CalendarManager calendarManager,
-            ConnectionManager connectionManager) {
-        return new GeofenceEventHandler(identityManager, geofenceManager, calendarManager, connectionManager);
-    }
-
-    @Singleton
-    @Provides
-    public static AlertEventHandler provideAlertEventHandler(Config config, IdentityManager identityManager) {
-        return new AlertEventHandler(config, identityManager);
-    }
-
-    @Singleton
-    @Provides
-    public static IgnitionEventHandler provideIgnitionEventHandler(IdentityManager identityManager) {
-        return new IgnitionEventHandler(identityManager);
-    }
-
-    @Singleton
-    @Provides
-    public static MaintenanceEventHandler provideMaintenanceEventHandler(
-            IdentityManager identityManager, MaintenancesManager maintenancesManager) {
-        return new MaintenanceEventHandler(identityManager, maintenancesManager);
-    }
-
-    @Singleton
-    @Provides
-    public static DriverEventHandler provideDriverEventHandler(IdentityManager identityManager) {
-        return new DriverEventHandler(identityManager);
-    }
-
-    @Singleton
-    @Provides
-    public static Timer provideTimer() {
-        return GlobalTimer.getTimer();
-    }
-
-    @Override
-    protected void configure() {
-        binder().requireExplicitBindings();
+        VelocityEngine velocityEngine = new VelocityEngine();
+        velocityEngine.init(properties);
+        return velocityEngine;
     }
 
 }
diff --git a/src/main/java/org/traccar/PositionForwardingHandler.java b/src/main/java/org/traccar/PositionForwardingHandler.java
new file mode 100644
index 000000000..a79b01367
--- /dev/null
+++ b/src/main/java/org/traccar/PositionForwardingHandler.java
@@ -0,0 +1,141 @@
+/*
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar;
+
+import io.netty.channel.ChannelHandler;
+import io.netty.util.Timeout;
+import io.netty.util.Timer;
+import io.netty.util.TimerTask;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.forward.PositionData;
+import org.traccar.forward.PositionForwarder;
+import org.traccar.forward.ResultHandler;
+import org.traccar.model.Device;
+import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
+
+import jakarta.annotation.Nullable;
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
+
+@Singleton
+@ChannelHandler.Sharable
+public class PositionForwardingHandler extends BaseDataHandler {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(PositionForwardingHandler.class);
+
+    private final CacheManager cacheManager;
+    private final Timer timer;
+
+    private final PositionForwarder positionForwarder;
+
+    private final boolean retryEnabled;
+    private final int retryDelay;
+    private final int retryCount;
+    private final int retryLimit;
+
+    private final AtomicInteger deliveryPending;
+
+    @Inject
+    public PositionForwardingHandler(
+            Config config, CacheManager cacheManager, Timer timer, @Nullable PositionForwarder positionForwarder) {
+
+        this.cacheManager = cacheManager;
+        this.timer = timer;
+        this.positionForwarder = positionForwarder;
+
+        this.retryEnabled = config.getBoolean(Keys.FORWARD_RETRY_ENABLE);
+        this.retryDelay = config.getInteger(Keys.FORWARD_RETRY_DELAY);
+        this.retryCount = config.getInteger(Keys.FORWARD_RETRY_COUNT);
+        this.retryLimit = config.getInteger(Keys.FORWARD_RETRY_LIMIT);
+
+        this.deliveryPending = new AtomicInteger();
+    }
+
+    class AsyncRequestAndCallback implements ResultHandler, TimerTask {
+
+        private final PositionData positionData;
+
+        private int retries = 0;
+
+        AsyncRequestAndCallback(PositionData positionData) {
+            this.positionData = positionData;
+            deliveryPending.incrementAndGet();
+        }
+
+        private void send() {
+            positionForwarder.forward(positionData, this);
+        }
+
+        private void retry(Throwable throwable) {
+            boolean scheduled = false;
+            try {
+                if (retryEnabled && deliveryPending.get() <= retryLimit && retries < retryCount) {
+                    schedule();
+                    scheduled = true;
+                }
+            } finally {
+                int pending = scheduled ? deliveryPending.get() : deliveryPending.decrementAndGet();
+                LOGGER.warn("Position forwarding failed: " + pending + " pending", throwable);
+            }
+        }
+
+        private void schedule() {
+            timer.newTimeout(this, retryDelay * (long) Math.pow(2, retries++), TimeUnit.MILLISECONDS);
+        }
+
+        @Override
+        public void onResult(boolean success, Throwable throwable) {
+            if (success) {
+                deliveryPending.decrementAndGet();
+            } else {
+                retry(throwable);
+            }
+        }
+
+        @Override
+        public void run(Timeout timeout) {
+            boolean sent = false;
+            try {
+                if (!timeout.isCancelled()) {
+                    send();
+                    sent = true;
+                }
+            } finally {
+                if (!sent) {
+                    deliveryPending.decrementAndGet();
+                }
+            }
+        }
+    }
+
+    @Override
+    protected Position handlePosition(Position position) {
+        if (positionForwarder != null) {
+            PositionData positionData = new PositionData();
+            positionData.setPosition(position);
+            positionData.setDevice(cacheManager.getObject(Device.class, position.getDeviceId()));
+            new AsyncRequestAndCallback(positionData).send();
+        }
+        return position;
+    }
+
+}
diff --git a/src/main/java/org/traccar/ServerManager.java b/src/main/java/org/traccar/ServerManager.java
index 15faf9f2b..e91be50a2 100644
--- a/src/main/java/org/traccar/ServerManager.java
+++ b/src/main/java/org/traccar/ServerManager.java
@@ -15,20 +15,28 @@
  */
 package org.traccar;
 
+import com.google.inject.Injector;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 import org.traccar.helper.ClassScanner;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
 import java.io.IOException;
 import java.net.BindException;
 import java.net.ConnectException;
 import java.net.URISyntaxException;
+import java.util.Arrays;
+import java.util.HashSet;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 
+@Singleton
 public class ServerManager implements LifecycleObject {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(ServerManager.class);
@@ -36,12 +44,21 @@ public class ServerManager implements LifecycleObject {
     private final List<TrackerConnector> connectorList = new LinkedList<>();
     private final Map<String, BaseProtocol> protocolList = new ConcurrentHashMap<>();
 
-    public ServerManager() throws IOException, URISyntaxException, ReflectiveOperationException {
+    @Inject
+    public ServerManager(
+            Injector injector, Config config) throws IOException, URISyntaxException, ReflectiveOperationException {
+        Set<String> enabledProtocols = null;
+        if (config.hasKey(Keys.PROTOCOLS_ENABLE)) {
+            enabledProtocols = new HashSet<>(Arrays.asList(config.getString(Keys.PROTOCOLS_ENABLE).split("[, ]")));
+        }
         for (Class<?> protocolClass : ClassScanner.findSubclasses(BaseProtocol.class, "org.traccar.protocol")) {
-            if (Context.getConfig().hasKey(Keys.PROTOCOL_PORT.withPrefix(BaseProtocol.nameFromClass(protocolClass)))) {
-                BaseProtocol protocol = (BaseProtocol) protocolClass.getDeclaredConstructor().newInstance();
-                connectorList.addAll(protocol.getConnectorList());
-                protocolList.put(protocol.getName(), protocol);
+            String protocolName = BaseProtocol.nameFromClass(protocolClass);
+            if (enabledProtocols == null || enabledProtocols.contains(protocolName)) {
+                if (config.hasKey(Keys.PROTOCOL_PORT.withPrefix(protocolName))) {
+                    BaseProtocol protocol = (BaseProtocol) injector.getInstance(protocolClass);
+                    connectorList.addAll(protocol.getConnectorList());
+                    protocolList.put(protocol.getName(), protocol);
+                }
             }
         }
     }
@@ -64,11 +81,14 @@ public class ServerManager implements LifecycleObject {
     }
 
     @Override
-    public void stop() {
-        for (TrackerConnector connector: connectorList) {
-            connector.stop();
+    public void stop() throws Exception {
+        try {
+            for (TrackerConnector connector : connectorList) {
+                connector.stop();
+            }
+        } finally {
+            GlobalTimer.release();
         }
-        GlobalTimer.release();
     }
 
 }
diff --git a/src/main/java/org/traccar/TrackerClient.java b/src/main/java/org/traccar/TrackerClient.java
index dda02f909..2d6b227da 100644
--- a/src/main/java/org/traccar/TrackerClient.java
+++ b/src/main/java/org/traccar/TrackerClient.java
@@ -23,6 +23,7 @@ import io.netty.handler.ssl.SslHandler;
 import io.netty.util.concurrent.Future;
 import io.netty.util.concurrent.GenericFutureListener;
 import io.netty.util.concurrent.GlobalEventExecutor;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 
 import javax.net.ssl.SSLContext;
@@ -52,15 +53,14 @@ public abstract class TrackerClient implements TrackerConnector {
         return secure;
     }
 
-    public TrackerClient(String protocol) {
+    public TrackerClient(Config config, String protocol) {
+        secure = config.getBoolean(Keys.PROTOCOL_SSL.withPrefix(protocol));
+        interval = config.getLong(Keys.PROTOCOL_INTERVAL.withPrefix(protocol));
+        address = config.getString(Keys.PROTOCOL_ADDRESS.withPrefix(protocol));
+        port = config.getInteger(Keys.PROTOCOL_PORT.withPrefix(protocol), secure ? 443 : 80);
+        devices = config.getString(Keys.PROTOCOL_DEVICES.withPrefix(protocol)).split("[, ]");
 
-        secure = Context.getConfig().getBoolean(Keys.PROTOCOL_SSL.withPrefix(protocol));
-        interval = Context.getConfig().getLong(Keys.PROTOCOL_INTERVAL.withPrefix(protocol));
-        address = Context.getConfig().getString(Keys.PROTOCOL_ADDRESS.withPrefix(protocol));
-        port = Context.getConfig().getInteger(Keys.PROTOCOL_PORT.withPrefix(protocol), secure ? 443 : 80);
-        devices = Context.getConfig().getString(Keys.PROTOCOL_DEVICES.withPrefix(protocol)).split("[, ]");
-
-        BasePipelineFactory pipelineFactory = new BasePipelineFactory(this, protocol) {
+        BasePipelineFactory pipelineFactory = new BasePipelineFactory(this, config, protocol) {
             @Override
             protected void addTransportHandlers(PipelineBuilder pipeline) {
                 try {
@@ -77,7 +77,7 @@ public abstract class TrackerClient implements TrackerConnector {
             @Override
             protected void addProtocolHandlers(PipelineBuilder pipeline) {
                 try {
-                    TrackerClient.this.addProtocolHandlers(pipeline);
+                    TrackerClient.this.addProtocolHandlers(pipeline, config);
                 } catch (Exception e) {
                     throw new RuntimeException(e);
                 }
@@ -90,7 +90,7 @@ public abstract class TrackerClient implements TrackerConnector {
                 .handler(pipelineFactory);
     }
 
-    protected abstract void addProtocolHandlers(PipelineBuilder pipeline) throws Exception;
+    protected abstract void addProtocolHandlers(PipelineBuilder pipeline, Config config) throws Exception;
 
     public String[] getDevices() {
         return devices;
diff --git a/src/main/java/org/traccar/TrackerServer.java b/src/main/java/org/traccar/TrackerServer.java
index 8e2fce616..0e0837cfb 100644
--- a/src/main/java/org/traccar/TrackerServer.java
+++ b/src/main/java/org/traccar/TrackerServer.java
@@ -25,6 +25,7 @@ import io.netty.channel.socket.nio.NioDatagramChannel;
 import io.netty.channel.socket.nio.NioServerSocketChannel;
 import io.netty.handler.ssl.SslHandler;
 import io.netty.util.concurrent.GlobalEventExecutor;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 
 import javax.net.ssl.SSLContext;
@@ -54,14 +55,12 @@ public abstract class TrackerServer implements TrackerConnector {
         return secure;
     }
 
-    public TrackerServer(boolean datagram, String protocol) {
-        this.datagram = datagram;
-
-        secure = Context.getConfig().getBoolean(Keys.PROTOCOL_SSL.withPrefix(protocol));
-        address = Context.getConfig().getString(Keys.PROTOCOL_ADDRESS.withPrefix(protocol));
-        port = Context.getConfig().getInteger(Keys.PROTOCOL_PORT.withPrefix(protocol));
+    public TrackerServer(Config config, String protocol, boolean datagram) {
+        secure = config.getBoolean(Keys.PROTOCOL_SSL.withPrefix(protocol));
+        address = config.getString(Keys.PROTOCOL_ADDRESS.withPrefix(protocol));
+        port = config.getInteger(Keys.PROTOCOL_PORT.withPrefix(protocol));
 
-        BasePipelineFactory pipelineFactory = new BasePipelineFactory(this, protocol) {
+        BasePipelineFactory pipelineFactory = new BasePipelineFactory(this, config, protocol) {
             @Override
             protected void addTransportHandlers(PipelineBuilder pipeline) {
                 try {
@@ -76,28 +75,25 @@ public abstract class TrackerServer implements TrackerConnector {
 
             @Override
             protected void addProtocolHandlers(PipelineBuilder pipeline) {
-                TrackerServer.this.addProtocolHandlers(pipeline);
+                TrackerServer.this.addProtocolHandlers(pipeline, config);
             }
         };
 
+        this.datagram = datagram;
         if (datagram) {
-
             bootstrap = new Bootstrap()
                     .group(EventLoopGroupFactory.getWorkerGroup())
                     .channel(NioDatagramChannel.class)
                     .handler(pipelineFactory);
-
         } else {
-
             bootstrap = new ServerBootstrap()
                     .group(EventLoopGroupFactory.getBossGroup(), EventLoopGroupFactory.getWorkerGroup())
                     .channel(NioServerSocketChannel.class)
                     .childHandler(pipelineFactory);
-
         }
     }
 
-    protected abstract void addProtocolHandlers(PipelineBuilder pipeline);
+    protected abstract void addProtocolHandlers(PipelineBuilder pipeline, Config config);
 
     public int getPort() {
         return port;
diff --git a/src/main/java/org/traccar/WebDataHandler.java b/src/main/java/org/traccar/WebDataHandler.java
deleted file mode 100644
index 678096d34..000000000
--- a/src/main/java/org/traccar/WebDataHandler.java
+++ /dev/null
@@ -1,310 +0,0 @@
-/*
- * Copyright 2015 - 2020 Anton Tananaev (anton@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar;
-
-import com.fasterxml.jackson.core.JsonProcessingException;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import io.netty.channel.ChannelHandler;
-import io.netty.util.Timer;
-import io.netty.util.Timeout;
-import io.netty.util.TimerTask;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import org.traccar.config.Config;
-import org.traccar.config.Keys;
-import org.traccar.database.IdentityManager;
-import org.traccar.helper.Checksum;
-import org.traccar.model.Device;
-import org.traccar.model.Position;
-import org.traccar.model.Group;
-
-import javax.inject.Inject;
-import javax.ws.rs.core.HttpHeaders;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
-import javax.ws.rs.client.Client;
-import javax.ws.rs.client.Entity;
-import javax.ws.rs.client.Invocation;
-import javax.ws.rs.client.InvocationCallback;
-import java.util.HashMap;
-import java.util.Map;
-import java.io.UnsupportedEncodingException;
-import java.net.URLEncoder;
-import java.nio.charset.StandardCharsets;
-import java.util.Calendar;
-import java.util.Formatter;
-import java.util.Locale;
-import java.util.TimeZone;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicInteger;
-
-@ChannelHandler.Sharable
-public class WebDataHandler extends BaseDataHandler {
-
-    private static final Logger LOGGER = LoggerFactory.getLogger(WebDataHandler.class);
-
-    private static final String KEY_POSITION = "position";
-    private static final String KEY_DEVICE = "device";
-
-    private final IdentityManager identityManager;
-    private final ObjectMapper objectMapper;
-    private final Client client;
-
-    private final String url;
-    private final String header;
-    private final boolean json;
-    private final boolean urlVariables;
-
-    private final boolean retryEnabled;
-    private final int retryDelay;
-    private final int retryCount;
-    private final int retryLimit;
-
-    private final AtomicInteger deliveryPending;
-
-    @Inject
-    public WebDataHandler(
-            Config config, IdentityManager identityManager, ObjectMapper objectMapper, Client client) {
-
-        this.identityManager = identityManager;
-        this.objectMapper = objectMapper;
-        this.client = client;
-        this.url = config.getString(Keys.FORWARD_URL);
-        this.header = config.getString(Keys.FORWARD_HEADER);
-        this.json = config.getBoolean(Keys.FORWARD_JSON);
-        this.urlVariables = config.getBoolean(Keys.FORWARD_URL_VARIABLES);
-
-        this.retryEnabled = config.getBoolean(Keys.FORWARD_RETRY_ENABLE);
-        this.retryDelay = config.getInteger(Keys.FORWARD_RETRY_DELAY, 100);
-        this.retryCount = config.getInteger(Keys.FORWARD_RETRY_COUNT, 10);
-        this.retryLimit = config.getInteger(Keys.FORWARD_RETRY_LIMIT, 100);
-
-        this.deliveryPending = new AtomicInteger(0);
-    }
-
-    private static String formatSentence(Position position) {
-
-        StringBuilder s = new StringBuilder("$GPRMC,");
-
-        try (Formatter f = new Formatter(s, Locale.ENGLISH)) {
-
-            Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"), Locale.ENGLISH);
-            calendar.setTimeInMillis(position.getFixTime().getTime());
-
-            f.format("%1$tH%1$tM%1$tS.%1$tL,A,", calendar);
-
-            double lat = position.getLatitude();
-            double lon = position.getLongitude();
-
-            f.format("%02d%07.4f,%c,", (int) Math.abs(lat), Math.abs(lat) % 1 * 60, lat < 0 ? 'S' : 'N');
-            f.format("%03d%07.4f,%c,", (int) Math.abs(lon), Math.abs(lon) % 1 * 60, lon < 0 ? 'W' : 'E');
-
-            f.format("%.2f,%.2f,", position.getSpeed(), position.getCourse());
-            f.format("%1$td%1$tm%1$ty,,", calendar);
-        }
-
-        s.append(Checksum.nmea(s.substring(1)));
-
-        return s.toString();
-    }
-
-    private String calculateStatus(Position position) {
-        if (position.getAttributes().containsKey(Position.KEY_ALARM)) {
-            return "0xF841"; // STATUS_PANIC_ON
-        } else if (position.getSpeed() < 1.0) {
-            return "0xF020"; // STATUS_LOCATION
-        } else {
-            return "0xF11C"; // STATUS_MOTION_MOVING
-        }
-    }
-
-    public String formatRequest(Position position) throws UnsupportedEncodingException, JsonProcessingException {
-
-        Device device = identityManager.getById(position.getDeviceId());
-
-        String request = url
-                .replace("{name}", URLEncoder.encode(device.getName(), StandardCharsets.UTF_8.name()))
-                .replace("{uniqueId}", device.getUniqueId())
-                .replace("{status}", device.getStatus())
-                .replace("{deviceId}", String.valueOf(position.getDeviceId()))
-                .replace("{protocol}", String.valueOf(position.getProtocol()))
-                .replace("{deviceTime}", String.valueOf(position.getDeviceTime().getTime()))
-                .replace("{fixTime}", String.valueOf(position.getFixTime().getTime()))
-                .replace("{valid}", String.valueOf(position.getValid()))
-                .replace("{latitude}", String.valueOf(position.getLatitude()))
-                .replace("{longitude}", String.valueOf(position.getLongitude()))
-                .replace("{altitude}", String.valueOf(position.getAltitude()))
-                .replace("{speed}", String.valueOf(position.getSpeed()))
-                .replace("{course}", String.valueOf(position.getCourse()))
-                .replace("{accuracy}", String.valueOf(position.getAccuracy()))
-                .replace("{statusCode}", calculateStatus(position));
-
-        if (position.getAddress() != null) {
-            request = request.replace(
-                    "{address}", URLEncoder.encode(position.getAddress(), StandardCharsets.UTF_8.name()));
-        }
-
-        if (request.contains("{attributes}")) {
-            String attributes = objectMapper.writeValueAsString(position.getAttributes());
-            request = request.replace(
-                    "{attributes}", URLEncoder.encode(attributes, StandardCharsets.UTF_8.name()));
-        }
-
-        if (request.contains("{gprmc}")) {
-            request = request.replace("{gprmc}", formatSentence(position));
-        }
-
-        if (request.contains("{group}")) {
-            String deviceGroupName = "";
-            if (device.getGroupId() != 0) {
-                Group group = Context.getGroupsManager().getById(device.getGroupId());
-                if (group != null) {
-                    deviceGroupName = group.getName();
-                }
-            }
-
-            request = request.replace("{group}", URLEncoder.encode(deviceGroupName, StandardCharsets.UTF_8.name()));
-        }
-
-        return request;
-    }
-
-    class AsyncRequestAndCallback implements InvocationCallback<Response>, TimerTask {
-
-        private int retries = 0;
-        private Map<String, Object> payload;
-        private final Invocation.Builder requestBuilder;
-        private MediaType mediaType = MediaType.APPLICATION_JSON_TYPE;
-
-        AsyncRequestAndCallback(Position position) {
-
-            String formattedUrl;
-            try {
-                formattedUrl = json && !urlVariables ? url : formatRequest(position);
-            } catch (UnsupportedEncodingException | JsonProcessingException e) {
-                throw new RuntimeException("Forwarding formatting error", e);
-            }
-
-            requestBuilder = client.target(formattedUrl).request();
-            if (header != null && !header.isEmpty()) {
-                for (String line: header.split("\\r?\\n")) {
-                    String[] values = line.split(":", 2);
-                    String headerName = values[0].trim();
-                    String headerValue = values[1].trim();
-                    if (headerName.equals(HttpHeaders.CONTENT_TYPE)) {
-                        mediaType = MediaType.valueOf(headerValue);
-                    } else {
-                        requestBuilder.header(headerName, headerValue);
-                    }
-                }
-            }
-
-            if (json) {
-                payload = prepareJsonPayload(position);
-            }
-
-            deliveryPending.incrementAndGet();
-        }
-
-        private void send() {
-            LOGGER.debug("Position forwarding initiated");
-            if (json) {
-                try {
-                    Entity<String> entity = Entity.entity(objectMapper.writeValueAsString(payload), mediaType);
-                    requestBuilder.async().post(entity, this);
-                } catch (JsonProcessingException e) {
-                    throw new RuntimeException("Failed to serialize location to json", e);
-                }
-            } else {
-                requestBuilder.async().get(this);
-            }
-        }
-
-        private void retry(Throwable throwable) {
-            boolean scheduled = false;
-            try {
-                if (retryEnabled && deliveryPending.get() <= retryLimit && retries < retryCount) {
-                    schedule();
-                    scheduled = true;
-                }
-            } finally {
-                int pending = scheduled ? deliveryPending.get() : deliveryPending.decrementAndGet();
-                LOGGER.warn("Position forwarding failed: " + pending + " pending", throwable);
-            }
-        }
-
-        private void schedule() {
-            Main.getInjector().getInstance(Timer.class).newTimeout(
-                this, retryDelay * (long) Math.pow(2, retries++), TimeUnit.MILLISECONDS);
-        }
-
-        @Override
-        public void completed(Response response) {
-            if (response.getStatusInfo().getFamily() == Response.Status.Family.SUCCESSFUL) {
-                deliveryPending.decrementAndGet();
-                LOGGER.debug("Position forwarding succeeded");
-            } else {
-                retry(new RuntimeException("Status code 2xx expected"));
-            }
-        }
-
-        @Override
-        public void failed(Throwable throwable) {
-            retry(throwable);
-        }
-
-        @Override
-        public void run(Timeout timeout) {
-            boolean sent = false;
-            try {
-                if (!timeout.isCancelled()) {
-                    send();
-                    sent = true;
-                }
-            } finally {
-                if (!sent) {
-                    deliveryPending.decrementAndGet();
-                }
-            }
-        }
-
-    }
-
-    @Override
-    protected Position handlePosition(Position position) {
-
-        AsyncRequestAndCallback request = new AsyncRequestAndCallback(position);
-        request.send();
-
-        return position;
-    }
-
-    private Map<String, Object> prepareJsonPayload(Position position) {
-
-        Map<String, Object> data = new HashMap<>();
-        Device device = identityManager.getById(position.getDeviceId());
-
-        data.put(KEY_POSITION, position);
-
-        if (device != null) {
-            data.put(KEY_DEVICE, device);
-        }
-
-        return data;
-    }
-
-}
diff --git a/src/main/java/org/traccar/api/AsyncSocket.java b/src/main/java/org/traccar/api/AsyncSocket.java
index b1853822d..5fc4b4412 100644
--- a/src/main/java/org/traccar/api/AsyncSocket.java
+++ b/src/main/java/org/traccar/api/AsyncSocket.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,15 +16,18 @@
 package org.traccar.api;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import org.eclipse.jetty.websocket.api.Session;
 import org.eclipse.jetty.websocket.api.WebSocketAdapter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.traccar.Context;
-import org.traccar.database.ConnectionManager;
+import org.traccar.helper.model.PositionUtil;
+import org.traccar.session.ConnectionManager;
 import org.traccar.model.Device;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
 
 import java.util.Collection;
 import java.util.Collections;
@@ -39,9 +42,15 @@ public class AsyncSocket extends WebSocketAdapter implements ConnectionManager.U
     private static final String KEY_POSITIONS = "positions";
     private static final String KEY_EVENTS = "events";
 
+    private final ObjectMapper objectMapper;
+    private final ConnectionManager connectionManager;
+    private final Storage storage;
     private final long userId;
 
-    public AsyncSocket(long userId) {
+    public AsyncSocket(ObjectMapper objectMapper, ConnectionManager connectionManager, Storage storage, long userId) {
+        this.objectMapper = objectMapper;
+        this.connectionManager = connectionManager;
+        this.storage = storage;
         this.userId = userId;
     }
 
@@ -49,18 +58,21 @@ public class AsyncSocket extends WebSocketAdapter implements ConnectionManager.U
     public void onWebSocketConnect(Session session) {
         super.onWebSocketConnect(session);
 
-        Map<String, Collection<?>> data = new HashMap<>();
-        data.put(KEY_POSITIONS, Context.getDeviceManager().getInitialState(userId));
-        sendData(data);
-
-        Context.getConnectionManager().addListener(userId, this);
+        try {
+            Map<String, Collection<?>> data = new HashMap<>();
+            data.put(KEY_POSITIONS, PositionUtil.getLatestPositions(storage, userId));
+            sendData(data);
+            connectionManager.addListener(userId, this);
+        } catch (StorageException e) {
+            throw new RuntimeException(e);
+        }
     }
 
     @Override
     public void onWebSocketClose(int statusCode, String reason) {
         super.onWebSocketClose(statusCode, reason);
 
-        Context.getConnectionManager().removeListener(userId, this);
+        connectionManager.removeListener(userId, this);
     }
 
     @Override
@@ -92,7 +104,7 @@ public class AsyncSocket extends WebSocketAdapter implements ConnectionManager.U
     private void sendData(Map<String, Collection<?>> data) {
         if (isConnected()) {
             try {
-                getRemote().sendString(Context.getObjectMapper().writeValueAsString(data), null);
+                getRemote().sendString(objectMapper.writeValueAsString(data), null);
             } catch (JsonProcessingException e) {
                 LOGGER.warn("Socket JSON formatting error", e);
             }
diff --git a/src/main/java/org/traccar/api/AsyncSocketServlet.java b/src/main/java/org/traccar/api/AsyncSocketServlet.java
index a964ead10..cd2c1639e 100644
--- a/src/main/java/org/traccar/api/AsyncSocketServlet.java
+++ b/src/main/java/org/traccar/api/AsyncSocketServlet.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,27 +15,48 @@
  */
 package org.traccar.api;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
 import org.eclipse.jetty.websocket.server.JettyWebSocketServlet;
 import org.eclipse.jetty.websocket.server.JettyWebSocketServletFactory;
-import org.traccar.Context;
 import org.traccar.api.resource.SessionResource;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
+import org.traccar.session.ConnectionManager;
+import org.traccar.storage.Storage;
 
-import javax.servlet.http.HttpSession;
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import jakarta.servlet.http.HttpSession;
 import java.time.Duration;
 
+@Singleton
 public class AsyncSocketServlet extends JettyWebSocketServlet {
 
+    private final Config config;
+    private final ObjectMapper objectMapper;
+    private final ConnectionManager connectionManager;
+    private final Storage storage;
+
+    @Inject
+    public AsyncSocketServlet(
+            Config config, ObjectMapper objectMapper, ConnectionManager connectionManager, Storage storage) {
+        this.config = config;
+        this.objectMapper = objectMapper;
+        this.connectionManager = connectionManager;
+        this.storage = storage;
+    }
+
     @Override
     public void configure(JettyWebSocketServletFactory factory) {
-        factory.setIdleTimeout(Duration.ofMillis(Context.getConfig().getLong(Keys.WEB_TIMEOUT)));
+        factory.setIdleTimeout(Duration.ofMillis(config.getLong(Keys.WEB_TIMEOUT)));
         factory.setCreator((req, resp) -> {
             if (req.getSession() != null) {
-                long userId = (Long) ((HttpSession) req.getSession()).getAttribute(SessionResource.USER_ID_KEY);
-                return new AsyncSocket(userId);
-            } else {
-                return null;
+                Long userId = (Long) ((HttpSession) req.getSession()).getAttribute(SessionResource.USER_ID_KEY);
+                if (userId != null) {
+                    return new AsyncSocket(objectMapper, connectionManager, storage, userId);
+                }
             }
+            return null;
         });
     }
 
diff --git a/src/main/java/org/traccar/api/BaseObjectResource.java b/src/main/java/org/traccar/api/BaseObjectResource.java
index 22756f62a..2aaed2bb5 100644
--- a/src/main/java/org/traccar/api/BaseObjectResource.java
+++ b/src/main/java/org/traccar/api/BaseObjectResource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2017 - 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,70 +16,48 @@
  */
 package org.traccar.api;
 
-import java.sql.SQLException;
-import java.util.Set;
-
-import javax.ws.rs.DELETE;
-import javax.ws.rs.GET;
-import javax.ws.rs.POST;
-import javax.ws.rs.PUT;
-import javax.ws.rs.Path;
-import javax.ws.rs.PathParam;
-import javax.ws.rs.core.Response;
-
-import org.traccar.Context;
-import org.traccar.database.BaseObjectManager;
-import org.traccar.database.ExtendedObjectManager;
-import org.traccar.database.ManagableObjects;
-import org.traccar.database.SimpleObjectManager;
+import org.traccar.api.security.ServiceAccountUser;
 import org.traccar.helper.LogAction;
 import org.traccar.model.BaseModel;
-import org.traccar.model.Calendar;
-import org.traccar.model.Command;
-import org.traccar.model.Device;
 import org.traccar.model.Group;
-import org.traccar.model.GroupedModel;
-import org.traccar.model.ScheduledModel;
+import org.traccar.model.Permission;
 import org.traccar.model.User;
+import org.traccar.session.ConnectionManager;
+import org.traccar.session.cache.CacheManager;
 import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.PUT;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.PathParam;
+import jakarta.ws.rs.core.Response;
 
 public abstract class BaseObjectResource<T extends BaseModel> extends BaseResource {
 
-    private final Class<T> baseClass;
+    @Inject
+    private CacheManager cacheManager;
 
-    public BaseObjectResource(Class<T> baseClass) {
-        this.baseClass = baseClass;
-    }
+    @Inject
+    private ConnectionManager connectionManager;
 
-    protected final Class<T> getBaseClass() {
-        return baseClass;
-    }
+    protected final Class<T> baseClass;
 
-    protected final Set<Long> getSimpleManagerItems(BaseObjectManager<T> manager, boolean all,  long userId) {
-        Set<Long> result;
-        if (all) {
-            if (Context.getPermissionsManager().getUserAdmin(getUserId())) {
-                result = manager.getAllItems();
-            } else {
-                Context.getPermissionsManager().checkManager(getUserId());
-                result = ((ManagableObjects) manager).getManagedItems(getUserId());
-            }
-        } else {
-            if (userId == 0) {
-                userId = getUserId();
-            }
-            Context.getPermissionsManager().checkUser(getUserId(), userId);
-            result = ((ManagableObjects) manager).getUserItems(userId);
-        }
-        return result;
+    public BaseObjectResource(Class<T> baseClass) {
+        this.baseClass = baseClass;
     }
 
     @Path("{id}")
     @GET
-    public Response getSingle(@PathParam("id") long id) throws SQLException {
-        Context.getPermissionsManager().checkPermission(baseClass, getUserId(), id);
-        BaseObjectManager<T> manager = Context.getManager(baseClass);
-        T entity = manager.getById(id);
+    public Response getSingle(@PathParam("id") long id) throws StorageException {
+        permissionsService.checkPermission(baseClass, getUserId(), id);
+        T entity = storage.getObject(baseClass, new Request(
+                new Columns.All(), new Condition.Equals("id", id)));
         if (entity != null) {
             return Response.ok(entity).build();
         } else {
@@ -89,102 +67,66 @@ public abstract class BaseObjectResource<T extends BaseModel> extends BaseResour
 
     @POST
     public Response add(T entity) throws StorageException {
-        Context.getPermissionsManager().checkReadonly(getUserId());
-        if (baseClass.equals(Device.class)) {
-            Context.getPermissionsManager().checkDeviceReadonly(getUserId());
-            Context.getPermissionsManager().checkDeviceLimit(getUserId());
-        } else if (baseClass.equals(Command.class)) {
-            Context.getPermissionsManager().checkLimitCommands(getUserId());
-        } else if (entity instanceof GroupedModel && ((GroupedModel) entity).getGroupId() != 0) {
-            Context.getPermissionsManager().checkPermission(
-                    Group.class, getUserId(), ((GroupedModel) entity).getGroupId());
-        } else if (entity instanceof ScheduledModel && ((ScheduledModel) entity).getCalendarId() != 0) {
-            Context.getPermissionsManager().checkPermission(
-                    Calendar.class, getUserId(), ((ScheduledModel) entity).getCalendarId());
-        }
+        permissionsService.checkEdit(getUserId(), entity, true);
 
-        BaseObjectManager<T> manager = Context.getManager(baseClass);
-        manager.addItem(entity);
+        entity.setId(storage.addObject(entity, new Request(new Columns.Exclude("id"))));
         LogAction.create(getUserId(), entity);
 
-        Context.getDataManager().linkObject(User.class, getUserId(), baseClass, entity.getId(), true);
-        LogAction.link(getUserId(), User.class, getUserId(), baseClass, entity.getId());
-
-        if (manager instanceof SimpleObjectManager) {
-            ((SimpleObjectManager<T>) manager).refreshUserItems();
-        } else if (baseClass.equals(Group.class) || baseClass.equals(Device.class)) {
-            Context.getPermissionsManager().refreshDeviceAndGroupPermissions();
-            Context.getPermissionsManager().refreshAllExtendedPermissions();
+        if (getUserId() != ServiceAccountUser.ID) {
+            storage.addPermission(new Permission(User.class, getUserId(), baseClass, entity.getId()));
+            cacheManager.invalidatePermission(true, User.class, getUserId(), baseClass, entity.getId());
+            connectionManager.invalidatePermission(true, User.class, getUserId(), baseClass, entity.getId());
+            LogAction.link(getUserId(), User.class, getUserId(), baseClass, entity.getId());
         }
+
         return Response.ok(entity).build();
     }
 
     @Path("{id}")
     @PUT
     public Response update(T entity) throws StorageException {
-        Context.getPermissionsManager().checkReadonly(getUserId());
-        if (baseClass.equals(Device.class)) {
-            Context.getPermissionsManager().checkDeviceReadonly(getUserId());
-        } else if (baseClass.equals(User.class)) {
-            User before = Context.getPermissionsManager().getUser(entity.getId());
-            Context.getPermissionsManager().checkUserUpdate(getUserId(), before, (User) entity);
-        } else if (baseClass.equals(Command.class)) {
-            Context.getPermissionsManager().checkLimitCommands(getUserId());
-        } else if (entity instanceof GroupedModel && ((GroupedModel) entity).getGroupId() != 0) {
-            Context.getPermissionsManager().checkPermission(
-                    Group.class, getUserId(), ((GroupedModel) entity).getGroupId());
-        } else if (entity instanceof ScheduledModel && ((ScheduledModel) entity).getCalendarId() != 0) {
-            Context.getPermissionsManager().checkPermission(
-                    Calendar.class, getUserId(), ((ScheduledModel) entity).getCalendarId());
+        permissionsService.checkEdit(getUserId(), entity, false);
+        permissionsService.checkPermission(baseClass, getUserId(), entity.getId());
+
+        if (entity instanceof User) {
+            User before = storage.getObject(User.class, new Request(
+                    new Columns.All(), new Condition.Equals("id", entity.getId())));
+            permissionsService.checkUserUpdate(getUserId(), before, (User) entity);
+        } else if (entity instanceof Group) {
+            Group group = (Group) entity;
+            if (group.getId() == group.getGroupId()) {
+                throw new IllegalArgumentException("Cycle in group hierarchy");
+            }
         }
-        Context.getPermissionsManager().checkPermission(baseClass, getUserId(), entity.getId());
 
-        Context.getManager(baseClass).updateItem(entity);
+        storage.updateObject(entity, new Request(
+                new Columns.Exclude("id"),
+                new Condition.Equals("id", entity.getId())));
+        if (entity instanceof User) {
+            User user = (User) entity;
+            if (user.getHashedPassword() != null) {
+                storage.updateObject(entity, new Request(
+                        new Columns.Include("hashedPassword", "salt"),
+                        new Condition.Equals("id", entity.getId())));
+            }
+        }
+        cacheManager.updateOrInvalidate(true, entity);
         LogAction.edit(getUserId(), entity);
 
-        if (baseClass.equals(Group.class) || baseClass.equals(Device.class)) {
-            Context.getPermissionsManager().refreshDeviceAndGroupPermissions();
-            Context.getPermissionsManager().refreshAllExtendedPermissions();
-        }
         return Response.ok(entity).build();
     }
 
     @Path("{id}")
     @DELETE
     public Response remove(@PathParam("id") long id) throws StorageException {
-        Context.getPermissionsManager().checkReadonly(getUserId());
-        if (baseClass.equals(Device.class)) {
-            Context.getPermissionsManager().checkDeviceReadonly(getUserId());
-        } else if (baseClass.equals(Command.class)) {
-            Context.getPermissionsManager().checkLimitCommands(getUserId());
-        }
-        Context.getPermissionsManager().checkPermission(baseClass, getUserId(), id);
+        permissionsService.checkEdit(getUserId(), baseClass, false);
+        permissionsService.checkPermission(baseClass, getUserId(), id);
+
+        storage.removeObject(baseClass, new Request(new Condition.Equals("id", id)));
+        cacheManager.invalidate(baseClass, id);
 
-        BaseObjectManager<T> manager = Context.getManager(baseClass);
-        manager.removeItem(id);
         LogAction.remove(getUserId(), baseClass, id);
 
-        if (manager instanceof SimpleObjectManager) {
-            ((SimpleObjectManager<T>) manager).refreshUserItems();
-            if (manager instanceof ExtendedObjectManager) {
-                ((ExtendedObjectManager<T>) manager).refreshExtendedPermissions();
-            }
-        }
-        if (baseClass.equals(Group.class) || baseClass.equals(Device.class) || baseClass.equals(User.class)) {
-            if (baseClass.equals(Group.class)) {
-                Context.getGroupsManager().refreshItems();
-                Context.getDeviceManager().updateDeviceCache(true);
-            }
-            Context.getPermissionsManager().refreshDeviceAndGroupPermissions();
-            if (baseClass.equals(User.class)) {
-                Context.getPermissionsManager().refreshAllUsersPermissions();
-            } else {
-                Context.getPermissionsManager().refreshAllExtendedPermissions();
-            }
-        } else if (baseClass.equals(Calendar.class)) {
-            Context.getGeofenceManager().refreshItems();
-            Context.getNotificationManager().refreshItems();
-        }
         return Response.noContent().build();
     }
 
diff --git a/src/main/java/org/traccar/api/BaseResource.java b/src/main/java/org/traccar/api/BaseResource.java
index 6dff8c8c3..f20b8c4c2 100644
--- a/src/main/java/org/traccar/api/BaseResource.java
+++ b/src/main/java/org/traccar/api/BaseResource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,16 +15,25 @@
  */
 package org.traccar.api;
 
+import org.traccar.api.security.PermissionsService;
 import org.traccar.api.security.UserPrincipal;
+import org.traccar.storage.Storage;
 
-import javax.ws.rs.core.Context;
-import javax.ws.rs.core.SecurityContext;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.core.Context;
+import jakarta.ws.rs.core.SecurityContext;
 
 public class BaseResource {
 
     @Context
     private SecurityContext securityContext;
 
+    @Inject
+    protected Storage storage;
+
+    @Inject
+    protected PermissionsService permissionsService;
+
     protected long getUserId() {
         UserPrincipal principal = (UserPrincipal) securityContext.getUserPrincipal();
         if (principal != null) {
@@ -32,4 +41,5 @@ public class BaseResource {
         }
         return 0;
     }
+
 }
diff --git a/src/main/java/org/traccar/api/CorsResponseFilter.java b/src/main/java/org/traccar/api/CorsResponseFilter.java
index 91aea5718..a380eb41d 100644
--- a/src/main/java/org/traccar/api/CorsResponseFilter.java
+++ b/src/main/java/org/traccar/api/CorsResponseFilter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,16 +16,26 @@
 package org.traccar.api;
 
 import io.netty.handler.codec.http.HttpHeaderNames;
-import org.traccar.Context;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 
-import javax.ws.rs.container.ContainerRequestContext;
-import javax.ws.rs.container.ContainerResponseContext;
-import javax.ws.rs.container.ContainerResponseFilter;
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import jakarta.ws.rs.container.ContainerRequestContext;
+import jakarta.ws.rs.container.ContainerResponseContext;
+import jakarta.ws.rs.container.ContainerResponseFilter;
 import java.io.IOException;
 
+@Singleton
 public class CorsResponseFilter implements ContainerResponseFilter {
 
+    private final String allowed;
+
+    @Inject
+    public CorsResponseFilter(Config config) {
+        allowed = config.getString(Keys.WEB_ORIGIN);
+    }
+
     private static final String ORIGIN_ALL = "*";
     private static final String HEADERS_ALL = "origin, content-type, accept, authorization";
     private static final String METHODS_ALL = "GET, POST, PUT, DELETE, OPTIONS";
@@ -46,8 +56,6 @@ public class CorsResponseFilter implements ContainerResponseFilter {
 
         if (!response.getHeaders().containsKey(HttpHeaderNames.ACCESS_CONTROL_ALLOW_ORIGIN.toString())) {
             String origin = request.getHeaderString(HttpHeaderNames.ORIGIN.toString());
-            String allowed = Context.getConfig().getString(Keys.WEB_ORIGIN);
-
             if (origin == null) {
                 response.getHeaders().add(HttpHeaderNames.ACCESS_CONTROL_ALLOW_ORIGIN.toString(), ORIGIN_ALL);
             } else if (allowed == null || allowed.equals(ORIGIN_ALL) || allowed.contains(origin)) {
diff --git a/src/main/java/org/traccar/api/DateParameterConverterProvider.java b/src/main/java/org/traccar/api/DateParameterConverterProvider.java
index f07ece984..4858fcbfd 100644
--- a/src/main/java/org/traccar/api/DateParameterConverterProvider.java
+++ b/src/main/java/org/traccar/api/DateParameterConverterProvider.java
@@ -17,8 +17,8 @@ package org.traccar.api;
 
 import org.traccar.helper.DateUtil;
 
-import javax.ws.rs.ext.ParamConverter;
-import javax.ws.rs.ext.ParamConverterProvider;
+import jakarta.ws.rs.ext.ParamConverter;
+import jakarta.ws.rs.ext.ParamConverterProvider;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Type;
 import java.util.Date;
diff --git a/src/main/java/org/traccar/api/ExtendedObjectResource.java b/src/main/java/org/traccar/api/ExtendedObjectResource.java
index 9e554217e..348ebe38a 100644
--- a/src/main/java/org/traccar/api/ExtendedObjectResource.java
+++ b/src/main/java/org/traccar/api/ExtendedObjectResource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,17 +16,19 @@
  */
 package org.traccar.api;
 
-import java.sql.SQLException;
-import java.util.Collection;
-import java.util.HashSet;
-import java.util.Set;
-
-import javax.ws.rs.GET;
-import javax.ws.rs.QueryParam;
-
-import org.traccar.Context;
-import org.traccar.database.ExtendedObjectManager;
 import org.traccar.model.BaseModel;
+import org.traccar.model.Device;
+import org.traccar.model.Group;
+import org.traccar.model.User;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.QueryParam;
+import java.util.Collection;
+import java.util.LinkedList;
 
 public class ExtendedObjectResource<T extends BaseModel> extends BaseObjectResource<T> {
 
@@ -36,27 +38,34 @@ public class ExtendedObjectResource<T extends BaseModel> extends BaseObjectResou
 
     @GET
     public Collection<T> get(
-            @QueryParam("all") boolean all, @QueryParam("userId") long userId, @QueryParam("groupId") long groupId,
-            @QueryParam("deviceId") long deviceId, @QueryParam("refresh") boolean refresh) throws SQLException {
-
-        ExtendedObjectManager<T> manager = (ExtendedObjectManager<T>) Context.getManager(getBaseClass());
-        if (refresh) {
-            manager.refreshItems();
-        }
+            @QueryParam("all") boolean all, @QueryParam("userId") long userId,
+            @QueryParam("groupId") long groupId, @QueryParam("deviceId") long deviceId) throws StorageException {
 
-        Set<Long> result = new HashSet<>(getSimpleManagerItems(manager, all, userId));
+        var conditions = new LinkedList<Condition>();
 
-        if (groupId != 0) {
-            Context.getPermissionsManager().checkGroup(getUserId(), groupId);
-            result.retainAll(manager.getGroupItems(groupId));
+        if (all) {
+            if (permissionsService.notAdmin(getUserId())) {
+                conditions.add(new Condition.Permission(User.class, getUserId(), baseClass));
+            }
+        } else {
+            if (userId == 0) {
+                conditions.add(new Condition.Permission(User.class, getUserId(), baseClass));
+            } else {
+                permissionsService.checkUser(getUserId(), userId);
+                conditions.add(new Condition.Permission(User.class, userId, baseClass).excludeGroups());
+            }
         }
 
-        if (deviceId != 0) {
-            Context.getPermissionsManager().checkDevice(getUserId(), deviceId);
-            result.retainAll(manager.getDeviceItems(deviceId));
+        if (groupId > 0) {
+            permissionsService.checkPermission(Group.class, getUserId(), groupId);
+            conditions.add(new Condition.Permission(Group.class, groupId, baseClass).excludeGroups());
+        }
+        if (deviceId > 0) {
+            permissionsService.checkPermission(Device.class, getUserId(), deviceId);
+            conditions.add(new Condition.Permission(Device.class, deviceId, baseClass).excludeGroups());
         }
 
-        return manager.getItems(result);
+        return storage.getObjects(baseClass, new Request(new Columns.All(), Condition.merge(conditions)));
     }
 
 }
diff --git a/src/main/java/org/traccar/api/MediaFilter.java b/src/main/java/org/traccar/api/MediaFilter.java
index 77731a810..38d13078d 100644
--- a/src/main/java/org/traccar/api/MediaFilter.java
+++ b/src/main/java/org/traccar/api/MediaFilter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2018 - 2023 Anton Tananaev (anton@traccar.org)
  * Copyright 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,35 +16,50 @@
  */
 package org.traccar.api;
 
-import java.io.IOException;
-import java.sql.SQLException;
-
-import javax.servlet.Filter;
-import javax.servlet.FilterChain;
-import javax.servlet.FilterConfig;
-import javax.servlet.ServletException;
-import javax.servlet.ServletRequest;
-import javax.servlet.ServletResponse;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import javax.servlet.http.HttpSession;
-
-import org.traccar.Context;
-import org.traccar.Main;
+import com.google.inject.Provider;
 import org.traccar.api.resource.SessionResource;
+import org.traccar.api.security.PermissionsService;
 import org.traccar.database.StatisticsManager;
 import org.traccar.helper.Log;
 import org.traccar.model.Device;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import jakarta.servlet.Filter;
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.ServletRequest;
+import jakarta.servlet.ServletResponse;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpSession;
+import java.io.IOException;
+
+@Singleton
 public class MediaFilter implements Filter {
 
-    @Override
-    public void init(FilterConfig filterConfig) throws ServletException {
+    private final Storage storage;
+    private final StatisticsManager statisticsManager;
+    private final Provider<PermissionsService> permissionsServiceProvider;
+
+    @Inject
+    public MediaFilter(
+            Storage storage, StatisticsManager statisticsManager,
+            Provider<PermissionsService> permissionsServiceProvider) {
+        this.storage = storage;
+        this.statisticsManager = statisticsManager;
+        this.permissionsServiceProvider = permissionsServiceProvider;
     }
 
     @Override
     public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
             throws IOException, ServletException {
+
         HttpServletResponse httpResponse = (HttpServletResponse) response;
         try {
             HttpSession session = ((HttpServletRequest) request).getSession(false);
@@ -52,8 +67,7 @@ public class MediaFilter implements Filter {
             if (session != null) {
                 userId = (Long) session.getAttribute(SessionResource.USER_ID_KEY);
                 if (userId != null) {
-                    Context.getPermissionsManager().checkUserEnabled(userId);
-                    Main.getInjector().getInstance(StatisticsManager.class).registerRequest(userId);
+                    statisticsManager.registerRequest(userId);
                 }
             }
             if (userId == null) {
@@ -64,26 +78,20 @@ public class MediaFilter implements Filter {
             String path = ((HttpServletRequest) request).getPathInfo();
             String[] parts = path != null ? path.split("/") : null;
             if (parts != null && parts.length >= 2) {
-                Device device = Context.getDeviceManager().getByUniqueId(parts[1]);
+                Device device = storage.getObject(Device.class, new Request(
+                        new Columns.All(), new Condition.Equals("uniqueId", parts[1])));
                 if (device != null) {
-                    Context.getPermissionsManager().checkDevice(userId, device.getId());
+                    permissionsServiceProvider.get().checkPermission(Device.class, userId, device.getId());
                     chain.doFilter(request, response);
                     return;
                 }
             }
 
             httpResponse.sendError(HttpServletResponse.SC_FORBIDDEN);
-        } catch (SecurityException e) {
+        } catch (SecurityException | StorageException e) {
             httpResponse.setStatus(HttpServletResponse.SC_FORBIDDEN);
             httpResponse.getWriter().println(Log.exceptionStack(e));
-        } catch (SQLException e) {
-            httpResponse.setStatus(HttpServletResponse.SC_BAD_REQUEST);
-            httpResponse.getWriter().println(Log.exceptionStack(e));
         }
     }
 
-    @Override
-    public void destroy() {
-    }
-
 }
diff --git a/src/main/java/org/traccar/api/ResourceErrorHandler.java b/src/main/java/org/traccar/api/ResourceErrorHandler.java
index 108a8e8cc..387f3db6a 100644
--- a/src/main/java/org/traccar/api/ResourceErrorHandler.java
+++ b/src/main/java/org/traccar/api/ResourceErrorHandler.java
@@ -17,9 +17,9 @@ package org.traccar.api;
 
 import org.traccar.helper.Log;
 
-import javax.ws.rs.WebApplicationException;
-import javax.ws.rs.core.Response;
-import javax.ws.rs.ext.ExceptionMapper;
+import jakarta.ws.rs.WebApplicationException;
+import jakarta.ws.rs.core.Response;
+import jakarta.ws.rs.ext.ExceptionMapper;
 
 public class ResourceErrorHandler implements ExceptionMapper<Exception> {
 
diff --git a/src/main/java/org/traccar/api/SimpleObjectResource.java b/src/main/java/org/traccar/api/SimpleObjectResource.java
index a7fcae0e7..c9d41b063 100644
--- a/src/main/java/org/traccar/api/SimpleObjectResource.java
+++ b/src/main/java/org/traccar/api/SimpleObjectResource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,15 +16,17 @@
  */
 package org.traccar.api;
 
-import java.sql.SQLException;
-import java.util.Collection;
-
-import javax.ws.rs.GET;
-import javax.ws.rs.QueryParam;
-
-import org.traccar.Context;
-import org.traccar.database.BaseObjectManager;
 import org.traccar.model.BaseModel;
+import org.traccar.model.User;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.QueryParam;
+import java.util.Collection;
+import java.util.LinkedList;
 
 public class SimpleObjectResource<T extends BaseModel> extends BaseObjectResource<T> {
 
@@ -34,10 +36,24 @@ public class SimpleObjectResource<T extends BaseModel> extends BaseObjectResourc
 
     @GET
     public Collection<T> get(
-            @QueryParam("all") boolean all, @QueryParam("userId") long userId) throws SQLException {
-
-        BaseObjectManager<T> manager = Context.getManager(getBaseClass());
-        return manager.getItems(getSimpleManagerItems(manager, all, userId));
+            @QueryParam("all") boolean all, @QueryParam("userId") long userId) throws StorageException {
+
+        var conditions = new LinkedList<Condition>();
+
+        if (all) {
+            if (permissionsService.notAdmin(getUserId())) {
+                conditions.add(new Condition.Permission(User.class, getUserId(), baseClass));
+            }
+        } else {
+            if (userId == 0) {
+                userId = getUserId();
+            } else {
+                permissionsService.checkUser(getUserId(), userId);
+            }
+            conditions.add(new Condition.Permission(User.class, userId, baseClass));
+        }
+
+        return storage.getObjects(baseClass, new Request(new Columns.All(), Condition.merge(conditions)));
     }
 
 }
diff --git a/src/main/java/org/traccar/api/resource/AttributeResource.java b/src/main/java/org/traccar/api/resource/AttributeResource.java
index d2dc28903..44f0ef452 100644
--- a/src/main/java/org/traccar/api/resource/AttributeResource.java
+++ b/src/main/java/org/traccar/api/resource/AttributeResource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2017 - 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,80 +16,84 @@
  */
 package org.traccar.api.resource;
 
-import javax.ws.rs.Consumes;
-import javax.ws.rs.DELETE;
-import javax.ws.rs.POST;
-import javax.ws.rs.PUT;
-import javax.ws.rs.Path;
-import javax.ws.rs.PathParam;
-import javax.ws.rs.Produces;
-import javax.ws.rs.QueryParam;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.PUT;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.PathParam;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
 
-import org.traccar.Context;
 import org.traccar.api.ExtendedObjectResource;
 import org.traccar.model.Attribute;
+import org.traccar.model.Device;
 import org.traccar.model.Position;
 import org.traccar.handler.ComputedAttributesHandler;
 import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
 
 @Path("attributes/computed")
 @Produces(MediaType.APPLICATION_JSON)
 @Consumes(MediaType.APPLICATION_JSON)
 public class AttributeResource extends ExtendedObjectResource<Attribute> {
 
+    @Inject
+    private ComputedAttributesHandler computedAttributesHandler;
+
     public AttributeResource() {
         super(Attribute.class);
     }
 
     @POST
     @Path("test")
-    public Response test(@QueryParam("deviceId") long deviceId, Attribute entity) {
-        Context.getPermissionsManager().checkAdmin(getUserId());
-        Context.getPermissionsManager().checkDevice(getUserId(), deviceId);
-        Position last = Context.getIdentityManager().getLastPosition(deviceId);
-        if (last != null) {
-            Object result = new ComputedAttributesHandler(
-                    Context.getConfig(),
-                    Context.getIdentityManager(),
-                    Context.getAttributesManager()).computeAttribute(entity, last);
-            if (result != null) {
-                switch (entity.getType()) {
-                    case "number":
-                        Number numberValue = (Number) result;
-                        return Response.ok(numberValue).build();
-                    case "boolean":
-                        Boolean booleanValue = (Boolean) result;
-                        return Response.ok(booleanValue).build();
-                    default:
-                        return Response.ok(result.toString()).build();
-                }
-            } else {
-                return Response.noContent().build();
+    public Response test(@QueryParam("deviceId") long deviceId, Attribute entity) throws StorageException {
+        permissionsService.checkAdmin(getUserId());
+        permissionsService.checkPermission(Device.class, getUserId(), deviceId);
+
+        Position position = storage.getObject(Position.class, new Request(
+                new Columns.All(),
+                new Condition.LatestPositions(deviceId)));
+
+        Object result = computedAttributesHandler.computeAttribute(entity, position);
+        if (result != null) {
+            switch (entity.getType()) {
+                case "number":
+                    Number numberValue = (Number) result;
+                    return Response.ok(numberValue).build();
+                case "boolean":
+                    Boolean booleanValue = (Boolean) result;
+                    return Response.ok(booleanValue).build();
+                default:
+                    return Response.ok(result.toString()).build();
             }
         } else {
-            throw new IllegalArgumentException("Device has no last position");
+            return Response.noContent().build();
         }
     }
 
     @POST
     public Response add(Attribute entity) throws StorageException {
-        Context.getPermissionsManager().checkAdmin(getUserId());
+        permissionsService.checkAdmin(getUserId());
         return super.add(entity);
     }
 
     @Path("{id}")
     @PUT
     public Response update(Attribute entity) throws StorageException {
-        Context.getPermissionsManager().checkAdmin(getUserId());
+        permissionsService.checkAdmin(getUserId());
         return super.update(entity);
     }
 
     @Path("{id}")
     @DELETE
     public Response remove(@PathParam("id") long id) throws StorageException {
-        Context.getPermissionsManager().checkAdmin(getUserId());
+        permissionsService.checkAdmin(getUserId());
         return super.remove(id);
     }
 
diff --git a/src/main/java/org/traccar/api/resource/CalendarResource.java b/src/main/java/org/traccar/api/resource/CalendarResource.java
index 9399c34a5..f6c1f3c59 100644
--- a/src/main/java/org/traccar/api/resource/CalendarResource.java
+++ b/src/main/java/org/traccar/api/resource/CalendarResource.java
@@ -16,10 +16,10 @@
  */
 package org.traccar.api.resource;
 
-import javax.ws.rs.Consumes;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
-import javax.ws.rs.core.MediaType;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.core.MediaType;
 
 import org.traccar.api.SimpleObjectResource;
 import org.traccar.model.Calendar;
diff --git a/src/main/java/org/traccar/api/resource/CommandResource.java b/src/main/java/org/traccar/api/resource/CommandResource.java
index a31345246..d50c7ee0c 100644
--- a/src/main/java/org/traccar/api/resource/CommandResource.java
+++ b/src/main/java/org/traccar/api/resource/CommandResource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2016 Gabor Somogyi (gabor.g.somogyi@gmail.com)
  * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
  *
@@ -17,76 +17,153 @@
  */
 package org.traccar.api.resource;
 
-import org.traccar.Context;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.BaseProtocol;
+import org.traccar.ServerManager;
 import org.traccar.api.ExtendedObjectResource;
 import org.traccar.database.CommandsManager;
+import org.traccar.helper.model.DeviceUtil;
 import org.traccar.model.Command;
+import org.traccar.model.Device;
+import org.traccar.model.Group;
+import org.traccar.model.Position;
+import org.traccar.model.QueuedCommand;
 import org.traccar.model.Typed;
+import org.traccar.model.User;
+import org.traccar.model.UserRestrictions;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
 
+import jakarta.inject.Inject;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
+import java.lang.reflect.Field;
+import java.lang.reflect.Modifier;
+import java.util.ArrayList;
 import java.util.Collection;
-import java.util.HashSet;
-import java.util.Set;
-
-import javax.ws.rs.Consumes;
-import javax.ws.rs.GET;
-import javax.ws.rs.POST;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
-import javax.ws.rs.QueryParam;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
 
 @Path("commands")
 @Produces(MediaType.APPLICATION_JSON)
 @Consumes(MediaType.APPLICATION_JSON)
 public class CommandResource extends ExtendedObjectResource<Command> {
 
+    private static final Logger LOGGER = LoggerFactory.getLogger(CommandResource.class);
+
+    @Inject
+    private CommandsManager commandsManager;
+
+    @Inject
+    private ServerManager serverManager;
+
     public CommandResource() {
         super(Command.class);
     }
 
+    private BaseProtocol getDeviceProtocol(long deviceId) throws StorageException {
+        Position position = storage.getObject(Position.class, new Request(
+                new Columns.All(), new Condition.LatestPositions(deviceId)));
+        if (position != null) {
+            return serverManager.getProtocol(position.getProtocol());
+        } else {
+            return null;
+        }
+    }
+
     @GET
     @Path("send")
-    public Collection<Command> get(@QueryParam("deviceId") long deviceId) {
-        Context.getPermissionsManager().checkDevice(getUserId(), deviceId);
-        CommandsManager commandsManager = Context.getCommandsManager();
-        Set<Long> result = new HashSet<>(commandsManager.getUserItems(getUserId()));
-        result.retainAll(commandsManager.getSupportedCommands(deviceId));
-        return commandsManager.getItems(result);
+    public Collection<Command> get(@QueryParam("deviceId") long deviceId) throws StorageException {
+        permissionsService.checkPermission(Device.class, getUserId(), deviceId);
+        BaseProtocol protocol = getDeviceProtocol(deviceId);
+
+        var commands = storage.getObjects(baseClass, new Request(
+                new Columns.All(),
+                Condition.merge(List.of(
+                        new Condition.Permission(User.class, getUserId(), baseClass),
+                        new Condition.Permission(Device.class, deviceId, baseClass)
+                ))));
+
+        return commands.stream().filter(command -> {
+            String type = command.getType();
+            if (protocol != null) {
+                return command.getTextChannel() && protocol.getSupportedTextCommands().contains(type)
+                        || !command.getTextChannel() && protocol.getSupportedDataCommands().contains(type);
+            } else {
+                return type.equals(Command.TYPE_CUSTOM);
+            }
+        }).collect(Collectors.toList());
     }
 
     @POST
     @Path("send")
-    public Response send(Command entity) throws Exception {
-        Context.getPermissionsManager().checkReadonly(getUserId());
-        long deviceId = entity.getDeviceId();
-        long id = entity.getId();
-        Context.getPermissionsManager().checkDevice(getUserId(), deviceId);
-        if (id != 0) {
-            Context.getPermissionsManager().checkPermission(Command.class, getUserId(), id);
-            Context.getPermissionsManager().checkUserDeviceCommand(getUserId(), deviceId, id);
+    public Response send(Command entity, @QueryParam("groupId") long groupId) throws Exception {
+        if (entity.getId() > 0) {
+            permissionsService.checkPermission(baseClass, getUserId(), entity.getId());
+            long deviceId = entity.getDeviceId();
+            entity = storage.getObject(baseClass, new Request(
+                    new Columns.All(), new Condition.Equals("id", entity.getId())));
+            entity.setDeviceId(deviceId);
         } else {
-            Context.getPermissionsManager().checkLimitCommands(getUserId());
+            permissionsService.checkRestriction(getUserId(), UserRestrictions::getLimitCommands);
         }
-        if (!Context.getCommandsManager().sendCommand(entity)) {
-            return Response.accepted(entity).build();
+        boolean result = true;
+        if (groupId > 0) {
+            permissionsService.checkPermission(Group.class, getUserId(), groupId);
+            var devices = DeviceUtil.getAccessibleDevices(storage, getUserId(), List.of(), List.of(groupId));
+            for (Device device : devices) {
+                Command command = QueuedCommand.fromCommand(entity).toCommand();
+                command.setDeviceId(device.getId());
+                result = commandsManager.sendCommand(command) && result;
+            }
+        } else {
+            permissionsService.checkPermission(Device.class, getUserId(), entity.getDeviceId());
+            result = commandsManager.sendCommand(entity);
         }
-        return Response.ok(entity).build();
+        return result ? Response.ok(entity).build() : Response.accepted(entity).build();
     }
 
     @GET
     @Path("types")
     public Collection<Typed> get(
             @QueryParam("deviceId") long deviceId,
-            @QueryParam("protocol") String protocol,
-            @QueryParam("textChannel") boolean textChannel) {
+            @QueryParam("textChannel") boolean textChannel) throws StorageException {
         if (deviceId != 0) {
-            Context.getPermissionsManager().checkDevice(getUserId(), deviceId);
-            return Context.getCommandsManager().getCommandTypes(deviceId, textChannel);
-        } else if (protocol != null) {
-            return Context.getCommandsManager().getCommandTypes(protocol, textChannel);
+            permissionsService.checkPermission(Device.class, getUserId(), deviceId);
+            BaseProtocol protocol = getDeviceProtocol(deviceId);
+            if (protocol != null) {
+                if (textChannel) {
+                    return protocol.getSupportedTextCommands().stream().map(Typed::new).collect(Collectors.toList());
+                } else {
+                    return protocol.getSupportedDataCommands().stream().map(Typed::new).collect(Collectors.toList());
+                }
+            } else {
+                return Collections.singletonList(new Typed(Command.TYPE_CUSTOM));
+            }
         } else {
-            return Context.getCommandsManager().getAllCommandTypes();
+            List<Typed> result = new ArrayList<>();
+            Field[] fields = Command.class.getDeclaredFields();
+            for (Field field : fields) {
+                if (Modifier.isStatic(field.getModifiers()) && field.getName().startsWith("TYPE_")) {
+                    try {
+                        result.add(new Typed(field.get(null).toString()));
+                    } catch (IllegalArgumentException | IllegalAccessException error) {
+                        LOGGER.warn("Get command types error", error);
+                    }
+                }
+            }
+            return result;
         }
     }
+
 }
diff --git a/src/main/java/org/traccar/api/resource/DeviceResource.java b/src/main/java/org/traccar/api/resource/DeviceResource.java
index 9436b59f6..61a70bac0 100644
--- a/src/main/java/org/traccar/api/resource/DeviceResource.java
+++ b/src/main/java/org/traccar/api/resource/DeviceResource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,34 +15,58 @@
  */
 package org.traccar.api.resource;
 
-import org.traccar.Context;
 import org.traccar.api.BaseObjectResource;
-import org.traccar.database.DeviceManager;
+import org.traccar.broadcast.BroadcastService;
+import org.traccar.database.MediaManager;
 import org.traccar.helper.LogAction;
 import org.traccar.model.Device;
 import org.traccar.model.DeviceAccumulators;
+import org.traccar.model.Position;
+import org.traccar.model.User;
+import org.traccar.session.ConnectionManager;
+import org.traccar.session.cache.CacheManager;
 import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
 
-import javax.ws.rs.Consumes;
-import javax.ws.rs.GET;
-import javax.ws.rs.PUT;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
-import javax.ws.rs.QueryParam;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
-
-import java.sql.SQLException;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.HeaderParam;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.PUT;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.PathParam;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.HttpHeaders;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
 import java.util.Collection;
-import java.util.HashSet;
+import java.util.LinkedList;
 import java.util.List;
-import java.util.Set;
 
 @Path("devices")
 @Produces(MediaType.APPLICATION_JSON)
 @Consumes(MediaType.APPLICATION_JSON)
 public class DeviceResource extends BaseObjectResource<Device> {
 
+    @Inject
+    private CacheManager cacheManager;
+
+    @Inject
+    private ConnectionManager connectionManager;
+
+    @Inject
+    private BroadcastService broadcastService;
+
+    @Inject
+    private MediaManager mediaManager;
+
     public DeviceResource() {
         super(Device.class);
     }
@@ -51,51 +75,112 @@ public class DeviceResource extends BaseObjectResource<Device> {
     public Collection<Device> get(
             @QueryParam("all") boolean all, @QueryParam("userId") long userId,
             @QueryParam("uniqueId") List<String> uniqueIds,
-            @QueryParam("id") List<Long> deviceIds) throws SQLException {
-        DeviceManager deviceManager = Context.getDeviceManager();
-        Set<Long> result;
-        if (all) {
-            if (Context.getPermissionsManager().getUserAdmin(getUserId())) {
-                result = deviceManager.getAllItems();
-            } else {
-                Context.getPermissionsManager().checkManager(getUserId());
-                result = deviceManager.getManagedItems(getUserId());
-            }
-        } else if (uniqueIds.isEmpty() && deviceIds.isEmpty()) {
-            if (userId == 0) {
-                userId = getUserId();
-            }
-            Context.getPermissionsManager().checkUser(getUserId(), userId);
-            if (Context.getPermissionsManager().getUserAdmin(getUserId())) {
-                result = deviceManager.getAllUserItems(userId);
-            } else {
-                result = deviceManager.getUserItems(userId);
-            }
-        } else {
-            result = new HashSet<>();
+            @QueryParam("id") List<Long> deviceIds) throws StorageException {
+
+        if (!uniqueIds.isEmpty() || !deviceIds.isEmpty()) {
+
+            List<Device> result = new LinkedList<>();
             for (String uniqueId : uniqueIds) {
-                Device device = deviceManager.getByUniqueId(uniqueId);
-                Context.getPermissionsManager().checkDevice(getUserId(), device.getId());
-                result.add(device.getId());
+                result.addAll(storage.getObjects(Device.class, new Request(
+                        new Columns.All(),
+                        new Condition.And(
+                                new Condition.Equals("uniqueId", uniqueId),
+                                new Condition.Permission(User.class, getUserId(), Device.class)))));
             }
             for (Long deviceId : deviceIds) {
-                Context.getPermissionsManager().checkDevice(getUserId(), deviceId);
-                result.add(deviceId);
+                result.addAll(storage.getObjects(Device.class, new Request(
+                        new Columns.All(),
+                        new Condition.And(
+                                new Condition.Equals("id", deviceId),
+                                new Condition.Permission(User.class, getUserId(), Device.class)))));
             }
+            return result;
+
+        } else {
+
+            var conditions = new LinkedList<Condition>();
+
+            if (all) {
+                if (permissionsService.notAdmin(getUserId())) {
+                    conditions.add(new Condition.Permission(User.class, getUserId(), baseClass));
+                }
+            } else {
+                if (userId == 0) {
+                    conditions.add(new Condition.Permission(User.class, getUserId(), baseClass));
+                } else {
+                    permissionsService.checkUser(getUserId(), userId);
+                    conditions.add(new Condition.Permission(User.class, userId, baseClass).excludeGroups());
+                }
+            }
+
+            return storage.getObjects(baseClass, new Request(new Columns.All(), Condition.merge(conditions)));
+
         }
-        return deviceManager.getItems(result);
     }
 
     @Path("{id}/accumulators")
     @PUT
     public Response updateAccumulators(DeviceAccumulators entity) throws StorageException {
-        if (!Context.getPermissionsManager().getUserAdmin(getUserId())) {
-            Context.getPermissionsManager().checkManager(getUserId());
-            Context.getPermissionsManager().checkPermission(Device.class, getUserId(), entity.getDeviceId());
+        if (permissionsService.notAdmin(getUserId())) {
+            permissionsService.checkManager(getUserId());
+            permissionsService.checkPermission(Device.class, getUserId(), entity.getDeviceId());
         }
-        Context.getDeviceManager().resetDeviceAccumulators(entity);
+
+        Position position = storage.getObject(Position.class, new Request(
+                new Columns.All(), new Condition.LatestPositions(entity.getDeviceId())));
+        if (position != null) {
+            if (entity.getTotalDistance() != null) {
+                position.getAttributes().put(Position.KEY_TOTAL_DISTANCE, entity.getTotalDistance());
+            }
+            if (entity.getHours() != null) {
+                position.getAttributes().put(Position.KEY_HOURS, entity.getHours());
+            }
+            position.setId(storage.addObject(position, new Request(new Columns.Exclude("id"))));
+
+            Device device = new Device();
+            device.setId(position.getDeviceId());
+            device.setPositionId(position.getId());
+            storage.updateObject(device, new Request(
+                    new Columns.Include("positionId"),
+                    new Condition.Equals("id", device.getId())));
+
+            try {
+                cacheManager.addDevice(position.getDeviceId());
+                cacheManager.updatePosition(position);
+                connectionManager.updatePosition(true, position);
+            } finally {
+                cacheManager.removeDevice(position.getDeviceId());
+            }
+        } else {
+            throw new IllegalArgumentException();
+        }
+
         LogAction.resetDeviceAccumulators(getUserId(), entity.getDeviceId());
         return Response.noContent().build();
     }
 
+    @Path("{id}/image")
+    @POST
+    @Consumes("image/*")
+    public Response uploadImage(
+            @PathParam("id") long deviceId, File file,
+            @HeaderParam(HttpHeaders.CONTENT_TYPE) String type) throws StorageException, IOException {
+
+        Device device = storage.getObject(Device.class, new Request(
+                new Columns.All(),
+                new Condition.And(
+                        new Condition.Equals("id", deviceId),
+                        new Condition.Permission(User.class, getUserId(), Device.class))));
+        if (device != null) {
+            String name = "device";
+            String extension = type.substring("image/".length());
+            try (var input = new FileInputStream(file);
+                    var output = mediaManager.createFileStream(device.getUniqueId(), name, extension)) {
+                input.transferTo(output);
+            }
+            return Response.ok(name + "." + extension).build();
+        }
+        return Response.status(Response.Status.NOT_FOUND).build();
+    }
+
 }
diff --git a/src/main/java/org/traccar/api/resource/DriverResource.java b/src/main/java/org/traccar/api/resource/DriverResource.java
index 91aa54c5e..19cf74f39 100644
--- a/src/main/java/org/traccar/api/resource/DriverResource.java
+++ b/src/main/java/org/traccar/api/resource/DriverResource.java
@@ -16,10 +16,10 @@
  */
 package org.traccar.api.resource;
 
-import javax.ws.rs.Consumes;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
-import javax.ws.rs.core.MediaType;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.core.MediaType;
 
 import org.traccar.api.ExtendedObjectResource;
 import org.traccar.model.Driver;
diff --git a/src/main/java/org/traccar/api/resource/EventResource.java b/src/main/java/org/traccar/api/resource/EventResource.java
index 354d96e4f..1f20b880d 100644
--- a/src/main/java/org/traccar/api/resource/EventResource.java
+++ b/src/main/java/org/traccar/api/resource/EventResource.java
@@ -15,21 +15,22 @@
  */
 package org.traccar.api.resource;
 
-import javax.ws.rs.Consumes;
-import javax.ws.rs.GET;
-import javax.ws.rs.Path;
-import javax.ws.rs.PathParam;
-import javax.ws.rs.Produces;
-import javax.ws.rs.WebApplicationException;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
-
-import org.traccar.Context;
 import org.traccar.api.BaseResource;
+import org.traccar.model.Device;
 import org.traccar.model.Event;
-import org.traccar.model.Geofence;
-import org.traccar.model.Maintenance;
 import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.PathParam;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.WebApplicationException;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
 
 @Path("events")
 @Produces(MediaType.APPLICATION_JSON)
@@ -39,17 +40,12 @@ public class EventResource extends BaseResource {
     @Path("{id}")
     @GET
     public Event get(@PathParam("id") long id) throws StorageException {
-        Event event = Context.getDataManager().getObject(Event.class, id);
+        Event event = storage.getObject(Event.class, new Request(
+                new Columns.All(), new Condition.Equals("id", id)));
         if (event == null) {
             throw new WebApplicationException(Response.status(Response.Status.NOT_FOUND).build());
         }
-        Context.getPermissionsManager().checkDevice(getUserId(), event.getDeviceId());
-        if (event.getGeofenceId() != 0) {
-            Context.getPermissionsManager().checkPermission(Geofence.class, getUserId(), event.getGeofenceId());
-        }
-        if (event.getMaintenanceId() != 0) {
-            Context.getPermissionsManager().checkPermission(Maintenance.class, getUserId(), event.getMaintenanceId());
-        }
+        permissionsService.checkPermission(Device.class, getUserId(), event.getDeviceId());
         return event;
     }
 
diff --git a/src/main/java/org/traccar/api/resource/GeofenceResource.java b/src/main/java/org/traccar/api/resource/GeofenceResource.java
index 58f2c188c..030690889 100644
--- a/src/main/java/org/traccar/api/resource/GeofenceResource.java
+++ b/src/main/java/org/traccar/api/resource/GeofenceResource.java
@@ -18,10 +18,10 @@ package org.traccar.api.resource;
 import org.traccar.api.ExtendedObjectResource;
 import org.traccar.model.Geofence;
 
-import javax.ws.rs.Consumes;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
-import javax.ws.rs.core.MediaType;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.core.MediaType;
 
 @Path("geofences")
 @Produces(MediaType.APPLICATION_JSON)
diff --git a/src/main/java/org/traccar/api/resource/GroupResource.java b/src/main/java/org/traccar/api/resource/GroupResource.java
index fcea15d0a..628f8f655 100644
--- a/src/main/java/org/traccar/api/resource/GroupResource.java
+++ b/src/main/java/org/traccar/api/resource/GroupResource.java
@@ -18,10 +18,10 @@ package org.traccar.api.resource;
 import org.traccar.api.SimpleObjectResource;
 import org.traccar.model.Group;
 
-import javax.ws.rs.Consumes;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
-import javax.ws.rs.core.MediaType;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.core.MediaType;
 
 @Path("groups")
 @Produces(MediaType.APPLICATION_JSON)
diff --git a/src/main/java/org/traccar/api/resource/MaintenanceResource.java b/src/main/java/org/traccar/api/resource/MaintenanceResource.java
index fa1b359ce..12841e497 100644
--- a/src/main/java/org/traccar/api/resource/MaintenanceResource.java
+++ b/src/main/java/org/traccar/api/resource/MaintenanceResource.java
@@ -16,10 +16,10 @@
  */
 package org.traccar.api.resource;
 
-import javax.ws.rs.Consumes;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
-import javax.ws.rs.core.MediaType;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.core.MediaType;
 
 import org.traccar.api.ExtendedObjectResource;
 import org.traccar.model.Maintenance;
diff --git a/src/main/java/org/traccar/api/resource/NotificationResource.java b/src/main/java/org/traccar/api/resource/NotificationResource.java
index 9631a52b7..2a209efb6 100644
--- a/src/main/java/org/traccar/api/resource/NotificationResource.java
+++ b/src/main/java/org/traccar/api/resource/NotificationResource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,30 +15,42 @@
  */
 package org.traccar.api.resource;
 
-import java.util.Collection;
-
-import javax.ws.rs.Consumes;
-import javax.ws.rs.GET;
-import javax.ws.rs.POST;
-import javax.ws.rs.Path;
-import javax.ws.rs.PathParam;
-import javax.ws.rs.Produces;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
-
-import org.traccar.Context;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.traccar.api.ExtendedObjectResource;
 import org.traccar.model.Event;
 import org.traccar.model.Notification;
 import org.traccar.model.Typed;
+import org.traccar.model.User;
 import org.traccar.notification.MessageException;
+import org.traccar.notification.NotificatorManager;
+import org.traccar.storage.StorageException;
 
+import jakarta.inject.Inject;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.PathParam;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
+import java.lang.reflect.Field;
+import java.lang.reflect.Modifier;
+import java.util.Collection;
+import java.util.LinkedList;
+import java.util.List;
 
 @Path("notifications")
 @Produces(MediaType.APPLICATION_JSON)
 @Consumes(MediaType.APPLICATION_JSON)
 public class NotificationResource extends ExtendedObjectResource<Notification> {
 
+    private static final Logger LOGGER = LoggerFactory.getLogger(NotificationResource.class);
+
+    @Inject
+    private NotificatorManager notificatorManager;
+
     public NotificationResource() {
         super(Notification.class);
     }
@@ -46,21 +58,32 @@ public class NotificationResource extends ExtendedObjectResource<Notification> {
     @GET
     @Path("types")
     public Collection<Typed> get() {
-        return Context.getNotificationManager().getAllNotificationTypes();
+        List<Typed> types = new LinkedList<>();
+        Field[] fields = Event.class.getDeclaredFields();
+        for (Field field : fields) {
+            if (Modifier.isStatic(field.getModifiers()) && field.getName().startsWith("TYPE_")) {
+                try {
+                    types.add(new Typed(field.get(null).toString()));
+                } catch (IllegalArgumentException | IllegalAccessException error) {
+                    LOGGER.warn("Get event types error", error);
+                }
+            }
+        }
+        return types;
     }
 
     @GET
     @Path("notificators")
     public Collection<Typed> getNotificators() {
-        return Context.getNotificatorManager().getAllNotificatorTypes();
+        return notificatorManager.getAllNotificatorTypes();
     }
 
     @POST
     @Path("test")
-    public Response testMessage() throws MessageException, InterruptedException {
-        for (Typed method : Context.getNotificatorManager().getAllNotificatorTypes()) {
-            Context.getNotificatorManager()
-                    .getNotificator(method.getType()).sendSync(getUserId(), new Event("test", 0), null);
+    public Response testMessage() throws MessageException, StorageException {
+        User user = permissionsService.getUser(getUserId());
+        for (Typed method : notificatorManager.getAllNotificatorTypes()) {
+            notificatorManager.getNotificator(method.getType()).send(null, user, new Event("test", 0), null);
         }
         return Response.noContent().build();
     }
@@ -68,8 +91,9 @@ public class NotificationResource extends ExtendedObjectResource<Notification> {
     @POST
     @Path("test/{notificator}")
     public Response testMessage(@PathParam("notificator") String notificator)
-            throws MessageException, InterruptedException {
-        Context.getNotificatorManager().getNotificator(notificator).sendSync(getUserId(), new Event("test", 0), null);
+            throws MessageException, StorageException {
+        User user = permissionsService.getUser(getUserId());
+        notificatorManager.getNotificator(notificator).send(null, user, new Event("test", 0), null);
         return Response.noContent().build();
     }
 
diff --git a/src/main/java/org/traccar/api/resource/OrderResource.java b/src/main/java/org/traccar/api/resource/OrderResource.java
index 77608a508..3852b975f 100644
--- a/src/main/java/org/traccar/api/resource/OrderResource.java
+++ b/src/main/java/org/traccar/api/resource/OrderResource.java
@@ -18,10 +18,10 @@ package org.traccar.api.resource;
 import org.traccar.api.SimpleObjectResource;
 import org.traccar.model.Order;
 
-import javax.ws.rs.Consumes;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
-import javax.ws.rs.core.MediaType;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.core.MediaType;
 
 @Path("orders")
 @Produces(MediaType.APPLICATION_JSON)
diff --git a/src/main/java/org/traccar/api/resource/PasswordResource.java b/src/main/java/org/traccar/api/resource/PasswordResource.java
index 0642ff3cc..029e63a0c 100644
--- a/src/main/java/org/traccar/api/resource/PasswordResource.java
+++ b/src/main/java/org/traccar/api/resource/PasswordResource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2021 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,49 +15,55 @@
  */
 package org.traccar.api.resource;
 
-import org.apache.velocity.VelocityContext;
-import org.traccar.Context;
 import org.traccar.api.BaseResource;
+import org.traccar.api.signature.TokenManager;
+import org.traccar.mail.MailManager;
 import org.traccar.model.User;
-import org.traccar.notification.NotificationMessage;
 import org.traccar.notification.TextTemplateFormatter;
 import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
 
-import javax.annotation.security.PermitAll;
-import javax.mail.MessagingException;
-import javax.ws.rs.Consumes;
-import javax.ws.rs.FormParam;
-import javax.ws.rs.POST;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
-import java.util.UUID;
+import jakarta.annotation.security.PermitAll;
+import jakarta.inject.Inject;
+import jakarta.mail.MessagingException;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.FormParam;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
+import java.io.IOException;
+import java.security.GeneralSecurityException;
 
 @Path("password")
 @Produces(MediaType.APPLICATION_JSON)
 @Consumes(MediaType.APPLICATION_FORM_URLENCODED)
 public class PasswordResource extends BaseResource {
 
-    private static final String PASSWORD_RESET_TOKEN = "passwordToken";
+    @Inject
+    private MailManager mailManager;
+
+    @Inject
+    private TokenManager tokenManager;
+
+    @Inject
+    private TextTemplateFormatter textTemplateFormatter;
 
     @Path("reset")
     @PermitAll
     @POST
-    public Response reset(@FormParam("email") String email) throws StorageException, MessagingException {
-        for (long userId : Context.getUsersManager().getAllItems()) {
-            User user = Context.getUsersManager().getById(userId);
-            if (email.equals(user.getEmail())) {
-                String token = UUID.randomUUID().toString().replaceAll("-", "");
-                user.set(PASSWORD_RESET_TOKEN, token);
-                Context.getUsersManager().updateItem(user);
-                VelocityContext velocityContext = TextTemplateFormatter.prepareContext(null);
-                velocityContext.put("token", token);
-                NotificationMessage fullMessage =
-                        TextTemplateFormatter.formatMessage(velocityContext, "passwordReset", "full");
-                Context.getMailManager().sendMessage(userId, fullMessage.getSubject(), fullMessage.getBody());
-                break;
-            }
+    public Response reset(@FormParam("email") String email)
+            throws StorageException, MessagingException, GeneralSecurityException, IOException {
+
+        User user = storage.getObject(User.class, new Request(
+                new Columns.All(), new Condition.Equals("email", email)));
+        if (user != null) {
+            var velocityContext = textTemplateFormatter.prepareContext(permissionsService.getServer(), user);
+            var fullMessage = textTemplateFormatter.formatMessage(velocityContext, "passwordReset", "full");
+            mailManager.sendMessage(user, true, fullMessage.getSubject(), fullMessage.getBody());
         }
         return Response.ok().build();
     }
@@ -66,15 +72,18 @@ public class PasswordResource extends BaseResource {
     @PermitAll
     @POST
     public Response update(
-            @FormParam("token") String token, @FormParam("password") String password) throws StorageException {
-        for (long userId : Context.getUsersManager().getAllItems()) {
-            User user = Context.getUsersManager().getById(userId);
-            if (token.equals(user.getString(PASSWORD_RESET_TOKEN))) {
-                user.getAttributes().remove(PASSWORD_RESET_TOKEN);
-                user.setPassword(password);
-                Context.getUsersManager().updateItem(user);
-                return Response.ok().build();
-            }
+            @FormParam("token") String token, @FormParam("password") String password)
+            throws StorageException, GeneralSecurityException, IOException {
+
+        long userId = tokenManager.verifyToken(token);
+        User user = storage.getObject(User.class, new Request(
+                new Columns.All(), new Condition.Equals("id", userId)));
+        if (user != null) {
+            user.setPassword(password);
+            storage.updateObject(user, new Request(
+                    new Columns.Include("hashedPassword", "salt"),
+                    new Condition.Equals("id", userId)));
+            return Response.ok().build();
         }
         return Response.status(Response.Status.NOT_FOUND).build();
     }
diff --git a/src/main/java/org/traccar/api/resource/PermissionsResource.java b/src/main/java/org/traccar/api/resource/PermissionsResource.java
index 7def38919..e8e4e96eb 100644
--- a/src/main/java/org/traccar/api/resource/PermissionsResource.java
+++ b/src/main/java/org/traccar/api/resource/PermissionsResource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,47 +16,40 @@
  */
 package org.traccar.api.resource;
 
-import java.util.Collections;
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Set;
-
-import javax.ws.rs.Consumes;
-import javax.ws.rs.DELETE;
-import javax.ws.rs.POST;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
-import javax.ws.rs.WebApplicationException;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
-
-import org.traccar.Context;
 import org.traccar.api.BaseResource;
 import org.traccar.helper.LogAction;
-import org.traccar.model.Device;
 import org.traccar.model.Permission;
-import org.traccar.model.User;
+import org.traccar.model.UserRestrictions;
+import org.traccar.session.cache.CacheManager;
 import org.traccar.storage.StorageException;
 
+import jakarta.inject.Inject;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.WebApplicationException;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
+import java.util.Collections;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Set;
+
 @Path("permissions")
 @Produces(MediaType.APPLICATION_JSON)
 @Consumes(MediaType.APPLICATION_JSON)
 public class PermissionsResource  extends BaseResource {
 
-    private void checkPermission(Permission permission, boolean link) {
-        if (!link && permission.getOwnerClass().equals(User.class)
-                && permission.getPropertyClass().equals(Device.class)) {
-            if (getUserId() != permission.getOwnerId()) {
-                Context.getPermissionsManager().checkUser(getUserId(), permission.getOwnerId());
-            } else {
-                Context.getPermissionsManager().checkAdmin(getUserId());
-            }
-        } else {
-            Context.getPermissionsManager().checkPermission(
-                    permission.getOwnerClass(), getUserId(), permission.getOwnerId());
+    @Inject
+    private CacheManager cacheManager;
+
+    private void checkPermission(Permission permission) throws StorageException {
+        if (permissionsService.notAdmin(getUserId())) {
+            permissionsService.checkPermission(permission.getOwnerClass(), getUserId(), permission.getOwnerId());
+            permissionsService.checkPermission(permission.getPropertyClass(), getUserId(), permission.getPropertyId());
         }
-        Context.getPermissionsManager().checkPermission(
-                permission.getPropertyClass(), getUserId(), permission.getPropertyId());
     }
 
     private void checkPermissionTypes(List<LinkedHashMap<String, Long>> entities) {
@@ -72,18 +65,19 @@ public class PermissionsResource  extends BaseResource {
     @Path("bulk")
     @POST
     public Response add(List<LinkedHashMap<String, Long>> entities) throws StorageException, ClassNotFoundException {
-        Context.getPermissionsManager().checkReadonly(getUserId());
+        permissionsService.checkRestriction(getUserId(), UserRestrictions::getReadonly);
         checkPermissionTypes(entities);
         for (LinkedHashMap<String, Long> entity: entities) {
             Permission permission = new Permission(entity);
-            checkPermission(permission, true);
-            Context.getDataManager().linkObject(permission.getOwnerClass(), permission.getOwnerId(),
-                    permission.getPropertyClass(), permission.getPropertyId(), true);
-            LogAction.link(getUserId(), permission.getOwnerClass(), permission.getOwnerId(),
+            checkPermission(permission);
+            storage.addPermission(permission);
+            cacheManager.invalidatePermission(
+                    true,
+                    permission.getOwnerClass(), permission.getOwnerId(),
+                    permission.getPropertyClass(), permission.getPropertyId());
+            LogAction.link(getUserId(),
+                    permission.getOwnerClass(), permission.getOwnerId(),
                     permission.getPropertyClass(), permission.getPropertyId());
-        }
-        if (!entities.isEmpty()) {
-            Context.getPermissionsManager().refreshPermissions(new Permission(entities.get(0)));
         }
         return Response.noContent().build();
     }
@@ -96,18 +90,19 @@ public class PermissionsResource  extends BaseResource {
     @DELETE
     @Path("bulk")
     public Response remove(List<LinkedHashMap<String, Long>> entities) throws StorageException, ClassNotFoundException {
-        Context.getPermissionsManager().checkReadonly(getUserId());
+        permissionsService.checkRestriction(getUserId(), UserRestrictions::getReadonly);
         checkPermissionTypes(entities);
         for (LinkedHashMap<String, Long> entity: entities) {
             Permission permission = new Permission(entity);
-            checkPermission(permission, false);
-            Context.getDataManager().linkObject(permission.getOwnerClass(), permission.getOwnerId(),
-                    permission.getPropertyClass(), permission.getPropertyId(), false);
-            LogAction.unlink(getUserId(), permission.getOwnerClass(), permission.getOwnerId(),
+            checkPermission(permission);
+            storage.removePermission(permission);
+            cacheManager.invalidatePermission(
+                    true,
+                    permission.getOwnerClass(), permission.getOwnerId(),
+                    permission.getPropertyClass(), permission.getPropertyId());
+            LogAction.unlink(getUserId(),
+                    permission.getOwnerClass(), permission.getOwnerId(),
                     permission.getPropertyClass(), permission.getPropertyId());
-        }
-        if (!entities.isEmpty()) {
-            Context.getPermissionsManager().refreshPermissions(new Permission(entities.get(0)));
         }
         return Response.noContent().build();
     }
diff --git a/src/main/java/org/traccar/api/resource/PositionResource.java b/src/main/java/org/traccar/api/resource/PositionResource.java
index 511032402..0d783a0fe 100644
--- a/src/main/java/org/traccar/api/resource/PositionResource.java
+++ b/src/main/java/org/traccar/api/resource/PositionResource.java
@@ -15,52 +15,146 @@
  */
 package org.traccar.api.resource;
 
-import org.traccar.Context;
 import org.traccar.api.BaseResource;
+import org.traccar.helper.model.PositionUtil;
+import org.traccar.model.Device;
 import org.traccar.model.Position;
+import org.traccar.model.UserRestrictions;
+import org.traccar.reports.CsvExportProvider;
+import org.traccar.reports.GpxExportProvider;
+import org.traccar.reports.KmlExportProvider;
 import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
 
-import javax.ws.rs.Consumes;
-import javax.ws.rs.GET;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
-import javax.ws.rs.QueryParam;
-import javax.ws.rs.core.MediaType;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.WebApplicationException;
+import jakarta.ws.rs.core.HttpHeaders;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
+import jakarta.ws.rs.core.StreamingOutput;
 import java.util.ArrayList;
 import java.util.Collection;
-import java.util.Collections;
 import java.util.Date;
 import java.util.List;
+import java.util.LinkedList;
 
 @Path("positions")
 @Produces(MediaType.APPLICATION_JSON)
 @Consumes(MediaType.APPLICATION_JSON)
 public class PositionResource extends BaseResource {
 
+    @Inject
+    private KmlExportProvider kmlExportProvider;
+
+    @Inject
+    private CsvExportProvider csvExportProvider;
+
+    @Inject
+    private GpxExportProvider gpxExportProvider;
+
     @GET
     public Collection<Position> getJson(
             @QueryParam("deviceId") long deviceId, @QueryParam("id") List<Long> positionIds,
             @QueryParam("from") Date from, @QueryParam("to") Date to)
             throws StorageException {
         if (!positionIds.isEmpty()) {
-            ArrayList<Position> positions = new ArrayList<>();
-            for (Long positionId : positionIds) {
-                Position position = Context.getDataManager().getObject(Position.class, positionId);
-                Context.getPermissionsManager().checkDevice(getUserId(), position.getDeviceId());
+            var positions = new ArrayList<Position>();
+            for (long positionId : positionIds) {
+                Position position = storage.getObject(Position.class, new Request(
+                        new Columns.All(), new Condition.Equals("id", positionId)));
+                permissionsService.checkPermission(Device.class, getUserId(), position.getDeviceId());
                 positions.add(position);
             }
             return positions;
-        } else if (deviceId == 0) {
-            return Context.getDeviceManager().getInitialState(getUserId());
-        } else {
-            Context.getPermissionsManager().checkDevice(getUserId(), deviceId);
+        } else if (deviceId > 0) {
+            permissionsService.checkPermission(Device.class, getUserId(), deviceId);
             if (from != null && to != null) {
-                Context.getPermissionsManager().checkDisableReports(getUserId());
-                return Context.getDataManager().getPositions(deviceId, from, to);
+                permissionsService.checkRestriction(getUserId(), UserRestrictions::getDisableReports);
+                return PositionUtil.getPositions(storage, deviceId, from, to);
             } else {
-                return Collections.singleton(Context.getDeviceManager().getLastPosition(deviceId));
+                return storage.getObjects(Position.class, new Request(
+                        new Columns.All(), new Condition.LatestPositions(deviceId)));
             }
+        } else {
+            return PositionUtil.getLatestPositions(storage, getUserId());
         }
     }
 
+    @DELETE
+    public Response remove(
+            @QueryParam("deviceId") long deviceId,
+            @QueryParam("from") Date from, @QueryParam("to") Date to) throws StorageException {
+        permissionsService.checkPermission(Device.class, getUserId(), deviceId);
+        permissionsService.checkRestriction(getUserId(), UserRestrictions::getReadonly);
+
+        var conditions = new LinkedList<Condition>();
+        conditions.add(new Condition.Equals("deviceId", deviceId));
+        conditions.add(new Condition.Between("fixTime", "from", from, "to", to));
+        storage.removeObject(Position.class, new Request(Condition.merge(conditions)));
+
+        return Response.status(Response.Status.NO_CONTENT).build();
+    }
+
+    @Path("kml")
+    @GET
+    @Produces("application/vnd.google-earth.kml+xml")
+    public Response getKml(
+            @QueryParam("deviceId") long deviceId,
+            @QueryParam("from") Date from, @QueryParam("to") Date to) throws StorageException {
+        permissionsService.checkPermission(Device.class, getUserId(), deviceId);
+        StreamingOutput stream = output -> {
+            try {
+                kmlExportProvider.generate(output, deviceId, from, to);
+            } catch (StorageException e) {
+                throw new WebApplicationException(e);
+            }
+        };
+        return Response.ok(stream)
+                .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=positions.kml").build();
+    }
+
+    @Path("csv")
+    @GET
+    @Produces("text/csv")
+    public Response getCsv(
+            @QueryParam("deviceId") long deviceId,
+            @QueryParam("from") Date from, @QueryParam("to") Date to) throws StorageException {
+        permissionsService.checkPermission(Device.class, getUserId(), deviceId);
+        StreamingOutput stream = output -> {
+            try {
+                csvExportProvider.generate(output, deviceId, from, to);
+            } catch (StorageException e) {
+                throw new WebApplicationException(e);
+            }
+        };
+        return Response.ok(stream)
+                .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=positions.csv").build();
+    }
+
+    @Path("gpx")
+    @GET
+    @Produces("application/gpx+xml")
+    public Response getGpx(
+            @QueryParam("deviceId") long deviceId,
+            @QueryParam("from") Date from, @QueryParam("to") Date to) throws StorageException {
+        permissionsService.checkPermission(Device.class, getUserId(), deviceId);
+        StreamingOutput stream = output -> {
+            try {
+                gpxExportProvider.generate(output, deviceId, from, to);
+            } catch (StorageException e) {
+                throw new WebApplicationException(e);
+            }
+        };
+        return Response.ok(stream)
+                .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=positions.gpx").build();
+    }
+
 }
diff --git a/src/main/java/org/traccar/api/resource/ReportResource.java b/src/main/java/org/traccar/api/resource/ReportResource.java
index 03df0d03a..b4882f219 100644
--- a/src/main/java/org/traccar/api/resource/ReportResource.java
+++ b/src/main/java/org/traccar/api/resource/ReportResource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2023 Anton Tananaev (anton@traccar.org)
  * Copyright 2016 - 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,208 +16,307 @@
  */
 package org.traccar.api.resource;
 
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.util.Collection;
-import java.util.Date;
-import java.util.List;
-
-import javax.activation.DataHandler;
-import javax.mail.MessagingException;
-import javax.mail.internet.MimeBodyPart;
-import javax.mail.util.ByteArrayDataSource;
-import javax.ws.rs.Consumes;
-import javax.ws.rs.GET;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
-import javax.ws.rs.QueryParam;
-import javax.ws.rs.core.HttpHeaders;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.traccar.Context;
-import org.traccar.api.BaseResource;
+import org.traccar.api.SimpleObjectResource;
 import org.traccar.helper.LogAction;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
-import org.traccar.reports.Events;
-import org.traccar.reports.Summary;
-import org.traccar.reports.Trips;
-import org.traccar.reports.model.StopReport;
-import org.traccar.reports.model.SummaryReport;
-import org.traccar.reports.model.TripReport;
-import org.traccar.reports.Route;
-import org.traccar.reports.Stops;
+import org.traccar.model.Report;
+import org.traccar.model.UserRestrictions;
+import org.traccar.reports.CombinedReportProvider;
+import org.traccar.reports.EventsReportProvider;
+import org.traccar.reports.RouteReportProvider;
+import org.traccar.reports.StopsReportProvider;
+import org.traccar.reports.SummaryReportProvider;
+import org.traccar.reports.TripsReportProvider;
+import org.traccar.reports.common.ReportExecutor;
+import org.traccar.reports.common.ReportMailer;
+import org.traccar.reports.model.CombinedReportItem;
+import org.traccar.reports.model.StopReportItem;
+import org.traccar.reports.model.SummaryReportItem;
+import org.traccar.reports.model.TripReportItem;
 import org.traccar.storage.StorageException;
 
+import jakarta.inject.Inject;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.PathParam;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.WebApplicationException;
+import jakarta.ws.rs.core.HttpHeaders;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
+import jakarta.ws.rs.core.StreamingOutput;
+import java.util.Collection;
+import java.util.Date;
+import java.util.List;
+
 @Path("reports")
 @Produces(MediaType.APPLICATION_JSON)
 @Consumes(MediaType.APPLICATION_JSON)
-public class ReportResource extends BaseResource {
+public class ReportResource extends SimpleObjectResource<Report> {
 
-    private static final Logger LOGGER = LoggerFactory.getLogger(ReportResource.class);
+    private static final String EXCEL = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
 
-    private static final String XLSX = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
-    private static final String CONTENT_DISPOSITION_VALUE_XLSX = "attachment; filename=report.xlsx";
+    @Inject
+    private CombinedReportProvider combinedReportProvider;
 
-    private interface ReportExecutor {
-        void execute(ByteArrayOutputStream stream) throws StorageException, IOException;
-    }
+    @Inject
+    private EventsReportProvider eventsReportProvider;
 
-    private Response executeReport(
-            long userId, boolean mail, ReportExecutor executor) throws StorageException, IOException {
-        final ByteArrayOutputStream stream = new ByteArrayOutputStream();
-        if (mail) {
-            new Thread(() -> {
-                try {
-                    executor.execute(stream);
+    @Inject
+    private RouteReportProvider routeReportProvider;
 
-                    MimeBodyPart attachment = new MimeBodyPart();
+    @Inject
+    private StopsReportProvider stopsReportProvider;
 
-                    attachment.setFileName("report.xlsx");
-                    attachment.setDataHandler(new DataHandler(new ByteArrayDataSource(
-                            stream.toByteArray(), "application/octet-stream")));
+    @Inject
+    private SummaryReportProvider summaryReportProvider;
 
-                    Context.getMailManager().sendMessage(
-                            userId, "Report", "The report is in the attachment.", attachment);
-                } catch (StorageException | IOException | MessagingException e) {
-                    LOGGER.warn("Report failed", e);
-                }
-            }).start();
+    @Inject
+    private TripsReportProvider tripsReportProvider;
+
+    @Inject
+    private ReportMailer reportMailer;
+
+    public ReportResource() {
+        super(Report.class);
+    }
+
+    private Response executeReport(long userId, boolean mail, ReportExecutor executor) {
+        if (mail) {
+            reportMailer.sendAsync(userId, executor);
             return Response.noContent().build();
         } else {
-            executor.execute(stream);
-            return Response.ok(stream.toByteArray())
-                    .header(HttpHeaders.CONTENT_DISPOSITION, CONTENT_DISPOSITION_VALUE_XLSX).build();
+            StreamingOutput stream = output -> {
+                try {
+                    executor.execute(output);
+                } catch (StorageException e) {
+                    throw new WebApplicationException(e);
+                }
+            };
+            return Response.ok(stream)
+                    .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=report.xlsx").build();
         }
     }
 
+    @Path("combined")
+    @GET
+    public Collection<CombinedReportItem> getCombined(
+            @QueryParam("deviceId") List<Long> deviceIds,
+            @QueryParam("groupId") List<Long> groupIds,
+            @QueryParam("from") Date from,
+            @QueryParam("to") Date to) throws StorageException {
+        permissionsService.checkRestriction(getUserId(), UserRestrictions::getDisableReports);
+        LogAction.logReport(getUserId(), "combined", from, to, deviceIds, groupIds);
+        return combinedReportProvider.getObjects(getUserId(), deviceIds, groupIds, from, to);
+    }
+
     @Path("route")
     @GET
     public Collection<Position> getRoute(
-            @QueryParam("deviceId") final List<Long> deviceIds, @QueryParam("groupId") final List<Long> groupIds,
-            @QueryParam("from") Date from, @QueryParam("to") Date to) throws StorageException {
-        Context.getPermissionsManager().checkDisableReports(getUserId());
+            @QueryParam("deviceId") List<Long> deviceIds,
+            @QueryParam("groupId") List<Long> groupIds,
+            @QueryParam("from") Date from,
+            @QueryParam("to") Date to) throws StorageException {
+        permissionsService.checkRestriction(getUserId(), UserRestrictions::getDisableReports);
         LogAction.logReport(getUserId(), "route", from, to, deviceIds, groupIds);
-        return Route.getObjects(getUserId(), deviceIds, groupIds, from, to);
+        return routeReportProvider.getObjects(getUserId(), deviceIds, groupIds, from, to);
     }
 
     @Path("route")
     @GET
-    @Produces(XLSX)
+    @Produces(EXCEL)
     public Response getRouteExcel(
-            @QueryParam("deviceId") final List<Long> deviceIds, @QueryParam("groupId") final List<Long> groupIds,
-            @QueryParam("from") Date from, @QueryParam("to") Date to, @QueryParam("mail") boolean mail)
-            throws StorageException, IOException {
-        Context.getPermissionsManager().checkDisableReports(getUserId());
+            @QueryParam("deviceId") List<Long> deviceIds,
+            @QueryParam("groupId") List<Long> groupIds,
+            @QueryParam("from") Date from,
+            @QueryParam("to") Date to,
+            @QueryParam("mail") boolean mail) throws StorageException {
+        permissionsService.checkRestriction(getUserId(), UserRestrictions::getDisableReports);
         return executeReport(getUserId(), mail, stream -> {
             LogAction.logReport(getUserId(), "route", from, to, deviceIds, groupIds);
-            Route.getExcel(stream, getUserId(), deviceIds, groupIds, from, to);
+            routeReportProvider.getExcel(stream, getUserId(), deviceIds, groupIds, from, to);
         });
     }
 
+    @Path("route/{type:xlsx|mail}")
+    @GET
+    @Produces(EXCEL)
+    public Response getRouteExcel(
+            @QueryParam("deviceId") List<Long> deviceIds,
+            @QueryParam("groupId") final List<Long> groupIds,
+            @QueryParam("from") Date from,
+            @QueryParam("to") Date to,
+            @PathParam("type") String type) throws StorageException {
+        return getRouteExcel(deviceIds, groupIds, from, to, type.equals("mail"));
+    }
+
     @Path("events")
     @GET
     public Collection<Event> getEvents(
-            @QueryParam("deviceId") final List<Long> deviceIds, @QueryParam("groupId") final List<Long> groupIds,
-            @QueryParam("type") final List<String> types,
-            @QueryParam("from") Date from, @QueryParam("to") Date to) throws StorageException {
-        Context.getPermissionsManager().checkDisableReports(getUserId());
+            @QueryParam("deviceId") List<Long> deviceIds,
+            @QueryParam("groupId") List<Long> groupIds,
+            @QueryParam("type") List<String> types,
+            @QueryParam("from") Date from,
+            @QueryParam("to") Date to) throws StorageException {
+        permissionsService.checkRestriction(getUserId(), UserRestrictions::getDisableReports);
         LogAction.logReport(getUserId(), "events", from, to, deviceIds, groupIds);
-        return Events.getObjects(getUserId(), deviceIds, groupIds, types, from, to);
+        return eventsReportProvider.getObjects(getUserId(), deviceIds, groupIds, types, from, to);
     }
 
     @Path("events")
     @GET
-    @Produces(XLSX)
+    @Produces(EXCEL)
     public Response getEventsExcel(
-            @QueryParam("deviceId") final List<Long> deviceIds, @QueryParam("groupId") final List<Long> groupIds,
-            @QueryParam("type") final List<String> types,
-            @QueryParam("from") Date from, @QueryParam("to") Date to, @QueryParam("mail") boolean mail)
-            throws StorageException, IOException {
-        Context.getPermissionsManager().checkDisableReports(getUserId());
+            @QueryParam("deviceId") List<Long> deviceIds,
+            @QueryParam("groupId") List<Long> groupIds,
+            @QueryParam("type") List<String> types,
+            @QueryParam("from") Date from,
+            @QueryParam("to") Date to,
+            @QueryParam("mail") boolean mail) throws StorageException {
+        permissionsService.checkRestriction(getUserId(), UserRestrictions::getDisableReports);
         return executeReport(getUserId(), mail, stream -> {
             LogAction.logReport(getUserId(), "events", from, to, deviceIds, groupIds);
-            Events.getExcel(stream, getUserId(), deviceIds, groupIds, types, from, to);
+            eventsReportProvider.getExcel(stream, getUserId(), deviceIds, groupIds, types, from, to);
         });
     }
 
+    @Path("events/{type:xlsx|mail}")
+    @GET
+    @Produces(EXCEL)
+    public Response getEventsExcel(
+            @QueryParam("deviceId") List<Long> deviceIds,
+            @QueryParam("groupId") List<Long> groupIds,
+            @QueryParam("type") List<String> types,
+            @QueryParam("from") Date from,
+            @QueryParam("to") Date to,
+            @PathParam("type") String type) throws StorageException {
+        return getEventsExcel(deviceIds, groupIds, types, from, to, type.equals("mail"));
+    }
+
     @Path("summary")
     @GET
-    public Collection<SummaryReport> getSummary(
-            @QueryParam("deviceId") final List<Long> deviceIds, @QueryParam("groupId") final List<Long> groupIds,
-            @QueryParam("from") Date from, @QueryParam("to") Date to, @QueryParam("daily") boolean daily)
-            throws StorageException {
-        Context.getPermissionsManager().checkDisableReports(getUserId());
+    public Collection<SummaryReportItem> getSummary(
+            @QueryParam("deviceId") List<Long> deviceIds,
+            @QueryParam("groupId") List<Long> groupIds,
+            @QueryParam("from") Date from,
+            @QueryParam("to") Date to,
+            @QueryParam("daily") boolean daily) throws StorageException {
+        permissionsService.checkRestriction(getUserId(), UserRestrictions::getDisableReports);
         LogAction.logReport(getUserId(), "summary", from, to, deviceIds, groupIds);
-        return Summary.getObjects(getUserId(), deviceIds, groupIds, from, to, daily);
+        return summaryReportProvider.getObjects(getUserId(), deviceIds, groupIds, from, to, daily);
     }
 
     @Path("summary")
     @GET
-    @Produces(XLSX)
+    @Produces(EXCEL)
     public Response getSummaryExcel(
-            @QueryParam("deviceId") final List<Long> deviceIds, @QueryParam("groupId") final List<Long> groupIds,
-            @QueryParam("from") Date from, @QueryParam("to") Date to, @QueryParam("daily") boolean daily,
-            @QueryParam("mail") boolean mail)
-            throws StorageException, IOException {
-        Context.getPermissionsManager().checkDisableReports(getUserId());
+            @QueryParam("deviceId") List<Long> deviceIds,
+            @QueryParam("groupId") List<Long> groupIds,
+            @QueryParam("from") Date from,
+            @QueryParam("to") Date to,
+            @QueryParam("daily") boolean daily,
+            @QueryParam("mail") boolean mail) throws StorageException {
+        permissionsService.checkRestriction(getUserId(), UserRestrictions::getDisableReports);
         return executeReport(getUserId(), mail, stream -> {
             LogAction.logReport(getUserId(), "summary", from, to, deviceIds, groupIds);
-            Summary.getExcel(stream, getUserId(), deviceIds, groupIds, from, to, daily);
+            summaryReportProvider.getExcel(stream, getUserId(), deviceIds, groupIds, from, to, daily);
         });
     }
 
+    @Path("summary/{type:xlsx|mail}")
+    @GET
+    @Produces(EXCEL)
+    public Response getSummaryExcel(
+            @QueryParam("deviceId") List<Long> deviceIds,
+            @QueryParam("groupId") List<Long> groupIds,
+            @QueryParam("from") Date from,
+            @QueryParam("to") Date to,
+            @QueryParam("daily") boolean daily,
+            @PathParam("type") String type) throws StorageException {
+        return getSummaryExcel(deviceIds, groupIds, from, to, daily, type.equals("mail"));
+    }
+
     @Path("trips")
     @GET
-    @Produces(MediaType.APPLICATION_JSON)
-    public Collection<TripReport> getTrips(
-            @QueryParam("deviceId") final List<Long> deviceIds, @QueryParam("groupId") final List<Long> groupIds,
-            @QueryParam("from") Date from, @QueryParam("to") Date to) throws StorageException {
-        Context.getPermissionsManager().checkDisableReports(getUserId());
+    public Collection<TripReportItem> getTrips(
+            @QueryParam("deviceId") List<Long> deviceIds,
+            @QueryParam("groupId") List<Long> groupIds,
+            @QueryParam("from") Date from,
+            @QueryParam("to") Date to) throws StorageException {
+        permissionsService.checkRestriction(getUserId(), UserRestrictions::getDisableReports);
         LogAction.logReport(getUserId(), "trips", from, to, deviceIds, groupIds);
-        return Trips.getObjects(getUserId(), deviceIds, groupIds, from, to);
+        return tripsReportProvider.getObjects(getUserId(), deviceIds, groupIds, from, to);
     }
 
     @Path("trips")
     @GET
-    @Produces(XLSX)
+    @Produces(EXCEL)
     public Response getTripsExcel(
-            @QueryParam("deviceId") final List<Long> deviceIds, @QueryParam("groupId") final List<Long> groupIds,
-            @QueryParam("from") Date from, @QueryParam("to") Date to, @QueryParam("mail") boolean mail)
-            throws StorageException, IOException {
-        Context.getPermissionsManager().checkDisableReports(getUserId());
+            @QueryParam("deviceId") List<Long> deviceIds,
+            @QueryParam("groupId") List<Long> groupIds,
+            @QueryParam("from") Date from,
+            @QueryParam("to") Date to,
+            @QueryParam("mail") boolean mail) throws StorageException {
+        permissionsService.checkRestriction(getUserId(), UserRestrictions::getDisableReports);
         return executeReport(getUserId(), mail, stream -> {
             LogAction.logReport(getUserId(), "trips", from, to, deviceIds, groupIds);
-            Trips.getExcel(stream, getUserId(), deviceIds, groupIds, from, to);
+            tripsReportProvider.getExcel(stream, getUserId(), deviceIds, groupIds, from, to);
         });
     }
 
+    @Path("trips/{type:xlsx|mail}")
+    @GET
+    @Produces(EXCEL)
+    public Response getTripsExcel(
+            @QueryParam("deviceId") List<Long> deviceIds,
+            @QueryParam("groupId") List<Long> groupIds,
+            @QueryParam("from") Date from,
+            @QueryParam("to") Date to,
+            @PathParam("type") String type) throws StorageException {
+        return getTripsExcel(deviceIds, groupIds, from, to, type.equals("mail"));
+    }
+
     @Path("stops")
     @GET
-    @Produces(MediaType.APPLICATION_JSON)
-    public Collection<StopReport> getStops(
-            @QueryParam("deviceId") final List<Long> deviceIds, @QueryParam("groupId") final List<Long> groupIds,
-            @QueryParam("from") Date from, @QueryParam("to") Date to) throws StorageException {
-        Context.getPermissionsManager().checkDisableReports(getUserId());
+    public Collection<StopReportItem> getStops(
+            @QueryParam("deviceId") List<Long> deviceIds,
+            @QueryParam("groupId") List<Long> groupIds,
+            @QueryParam("from") Date from,
+            @QueryParam("to") Date to) throws StorageException {
+        permissionsService.checkRestriction(getUserId(), UserRestrictions::getDisableReports);
         LogAction.logReport(getUserId(), "stops", from, to, deviceIds, groupIds);
-        return Stops.getObjects(getUserId(), deviceIds, groupIds, from, to);
+        return stopsReportProvider.getObjects(getUserId(), deviceIds, groupIds, from, to);
     }
 
     @Path("stops")
     @GET
-    @Produces(XLSX)
+    @Produces(EXCEL)
     public Response getStopsExcel(
-            @QueryParam("deviceId") final List<Long> deviceIds, @QueryParam("groupId") final List<Long> groupIds,
-            @QueryParam("from") Date from, @QueryParam("to") Date to, @QueryParam("mail") boolean mail)
-            throws StorageException, IOException {
-        Context.getPermissionsManager().checkDisableReports(getUserId());
+            @QueryParam("deviceId") List<Long> deviceIds,
+            @QueryParam("groupId") List<Long> groupIds,
+            @QueryParam("from") Date from,
+            @QueryParam("to") Date to,
+            @QueryParam("mail") boolean mail) throws StorageException {
+        permissionsService.checkRestriction(getUserId(), UserRestrictions::getDisableReports);
         return executeReport(getUserId(), mail, stream -> {
             LogAction.logReport(getUserId(), "stops", from, to, deviceIds, groupIds);
-            Stops.getExcel(stream, getUserId(), deviceIds, groupIds, from, to);
+            stopsReportProvider.getExcel(stream, getUserId(), deviceIds, groupIds, from, to);
         });
     }
 
+    @Path("stops/{type:xlsx|mail}")
+    @GET
+    @Produces(EXCEL)
+    public Response getStopsExcel(
+            @QueryParam("deviceId") List<Long> deviceIds,
+            @QueryParam("groupId") List<Long> groupIds,
+            @QueryParam("from") Date from,
+            @QueryParam("to") Date to,
+            @PathParam("type") String type) throws StorageException {
+        return getStopsExcel(deviceIds, groupIds, from, to, type.equals("mail"));
+    }
+
 }
diff --git a/src/main/java/org/traccar/api/resource/ServerResource.java b/src/main/java/org/traccar/api/resource/ServerResource.java
index 2d17d5e47..8149ec3b8 100644
--- a/src/main/java/org/traccar/api/resource/ServerResource.java
+++ b/src/main/java/org/traccar/api/resource/ServerResource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,25 +15,46 @@
  */
 package org.traccar.api.resource;
 
-import org.traccar.Context;
 import org.traccar.api.BaseResource;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.database.OpenIdProvider;
+import org.traccar.geocoder.Geocoder;
+import org.traccar.helper.Log;
 import org.traccar.helper.LogAction;
+import org.traccar.helper.model.UserUtil;
+import org.traccar.mail.MailManager;
 import org.traccar.model.Server;
-import org.traccar.storage.Storage;
+import org.traccar.model.User;
+import org.traccar.session.cache.CacheManager;
+import org.traccar.sms.SmsManager;
 import org.traccar.storage.StorageException;
 import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
 import org.traccar.storage.query.Request;
 
-import javax.annotation.security.PermitAll;
-import javax.inject.Inject;
-import javax.ws.rs.Consumes;
-import javax.ws.rs.GET;
-import javax.ws.rs.PUT;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
-import javax.ws.rs.QueryParam;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
+import jakarta.annotation.Nullable;
+import jakarta.annotation.security.PermitAll;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.PUT;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.PathParam;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.TimeZone;
 
 @Path("server")
 @Produces(MediaType.APPLICATION_JSON)
@@ -41,18 +62,56 @@ import javax.ws.rs.core.Response;
 public class ServerResource extends BaseResource {
 
     @Inject
-    private Storage storage;
+    private Config config;
+
+    @Inject
+    private CacheManager cacheManager;
+
+    @Inject
+    private MailManager mailManager;
+
+    @Inject
+    @Nullable
+    private SmsManager smsManager;
+
+    @Inject
+    @Nullable
+    private OpenIdProvider openIdProvider;
+
+    @Inject
+    @Nullable
+    private Geocoder geocoder;
 
     @PermitAll
     @GET
     public Server get() throws StorageException {
-        return storage.getObject(Server.class, new Request(new Columns.All()));
+        Server server = storage.getObject(Server.class, new Request(new Columns.All()));
+        server.setEmailEnabled(mailManager.getEmailEnabled());
+        server.setTextEnabled(smsManager != null);
+        server.setGeocoderEnabled(geocoder != null);
+        server.setOpenIdEnabled(openIdProvider != null);
+        server.setOpenIdForce(openIdProvider != null && openIdProvider.getForce());
+        User user = permissionsService.getUser(getUserId());
+        if (user != null) {
+            if (user.getAdministrator()) {
+                server.setStorageSpace(Log.getStorageSpace());
+            }
+        } else {
+            server.setNewServer(UserUtil.isEmpty(storage));
+        }
+        if (user != null && user.getAdministrator()) {
+            server.setStorageSpace(Log.getStorageSpace());
+        }
+        return server;
     }
 
     @PUT
     public Response update(Server entity) throws StorageException {
-        Context.getPermissionsManager().checkAdmin(getUserId());
-        Context.getPermissionsManager().updateServer(entity);
+        permissionsService.checkAdmin(getUserId());
+        storage.updateObject(entity, new Request(
+                new Columns.Exclude("id"),
+                new Condition.Equals("id", entity.getId())));
+        cacheManager.updateOrInvalidate(true, entity);
         LogAction.edit(getUserId(), entity);
         return Response.ok(entity).build();
     }
@@ -60,11 +119,36 @@ public class ServerResource extends BaseResource {
     @Path("geocode")
     @GET
     public String geocode(@QueryParam("latitude") double latitude, @QueryParam("longitude") double longitude) {
-        if (Context.getGeocoder() != null) {
-            return Context.getGeocoder().getAddress(latitude, longitude, null);
+        if (geocoder != null) {
+            return geocoder.getAddress(latitude, longitude, null);
         } else {
             throw new RuntimeException("Reverse geocoding is not enabled");
         }
     }
 
+    @Path("timezones")
+    @GET
+    public Collection<String> timezones() {
+        return Arrays.asList(TimeZone.getAvailableIDs());
+    }
+
+    @Path("file/{path}")
+    @POST
+    @Consumes("*/*")
+    public Response uploadImage(@PathParam("path") String path, File inputFile) throws IOException, StorageException {
+        permissionsService.checkAdmin(getUserId());
+        String root = config.getString(Keys.WEB_OVERRIDE, config.getString(Keys.WEB_PATH));
+
+        var outputPath = Paths.get(root, path);
+        var directoryPath = outputPath.getParent();
+        if (directoryPath != null) {
+            Files.createDirectories(directoryPath);
+        }
+
+        try (var input = new FileInputStream(inputFile); var output = new FileOutputStream(outputPath.toFile())) {
+            input.transferTo(output);
+        }
+        return Response.ok().build();
+    }
+
 }
diff --git a/src/main/java/org/traccar/api/resource/SessionResource.java b/src/main/java/org/traccar/api/resource/SessionResource.java
index 8422e0b49..3e738c15a 100644
--- a/src/main/java/org/traccar/api/resource/SessionResource.java
+++ b/src/main/java/org/traccar/api/resource/SessionResource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,32 +15,44 @@
  */
 package org.traccar.api.resource;
 
-import org.traccar.Context;
 import org.traccar.api.BaseResource;
+import org.traccar.api.security.LoginService;
+import org.traccar.api.signature.TokenManager;
+import org.traccar.database.OpenIdProvider;
 import org.traccar.helper.DataConverter;
-import org.traccar.helper.ServletHelper;
 import org.traccar.helper.LogAction;
+import org.traccar.helper.WebHelper;
 import org.traccar.model.User;
 import org.traccar.storage.StorageException;
-
-import javax.annotation.security.PermitAll;
-import javax.servlet.http.Cookie;
-import javax.servlet.http.HttpServletRequest;
-import javax.ws.rs.Consumes;
-import javax.ws.rs.DELETE;
-import javax.ws.rs.FormParam;
-import javax.ws.rs.GET;
-import javax.ws.rs.POST;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
-import javax.ws.rs.QueryParam;
-import javax.ws.rs.WebApplicationException;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
-
-import java.io.UnsupportedEncodingException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import com.nimbusds.oauth2.sdk.ParseException;
+import jakarta.annotation.Nullable;
+import jakarta.annotation.security.PermitAll;
+import jakarta.inject.Inject;
+import jakarta.servlet.http.Cookie;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.FormParam;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.PathParam;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.WebApplicationException;
+import jakarta.ws.rs.core.Context;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
+import java.io.IOException;
 import java.net.URLDecoder;
 import java.nio.charset.StandardCharsets;
+import java.security.GeneralSecurityException;
+import java.util.Date;
+import java.net.URI;
 
 @Path("session")
 @Produces(MediaType.APPLICATION_JSON)
@@ -51,18 +63,28 @@ public class SessionResource extends BaseResource {
     public static final String USER_COOKIE_KEY = "user";
     public static final String PASS_COOKIE_KEY = "password";
 
-    @javax.ws.rs.core.Context
+    @Inject
+    private LoginService loginService;
+
+    @Inject
+    @Nullable
+    private OpenIdProvider openIdProvider;
+
+    @Inject
+    private TokenManager tokenManager;
+
+    @Context
     private HttpServletRequest request;
 
     @PermitAll
     @GET
-    public User get(@QueryParam("token") String token) throws StorageException, UnsupportedEncodingException {
+    public User get(@QueryParam("token") String token) throws StorageException, IOException, GeneralSecurityException {
 
         if (token != null) {
-            User user = Context.getUsersManager().getUserByToken(token);
+            User user = loginService.login(token);
             if (user != null) {
-                Context.getPermissionsManager().checkUserEnabled(user.getId());
                 request.getSession().setAttribute(USER_ID_KEY, user.getId());
+                LogAction.login(user.getId(), WebHelper.retrieveRemoteAddress(request));
                 return user;
             }
         }
@@ -76,54 +98,91 @@ public class SessionResource extends BaseResource {
                 for (Cookie cookie : cookies) {
                     if (cookie.getName().equals(USER_COOKIE_KEY)) {
                         byte[] emailBytes = DataConverter.parseBase64(
-                                URLDecoder.decode(cookie.getValue(), StandardCharsets.US_ASCII.name()));
+                                URLDecoder.decode(cookie.getValue(), StandardCharsets.US_ASCII));
                         email = new String(emailBytes, StandardCharsets.UTF_8);
                     } else if (cookie.getName().equals(PASS_COOKIE_KEY)) {
                         byte[] passwordBytes = DataConverter.parseBase64(
-                                URLDecoder.decode(cookie.getValue(), StandardCharsets.US_ASCII.name()));
+                                URLDecoder.decode(cookie.getValue(), StandardCharsets.US_ASCII));
                         password = new String(passwordBytes, StandardCharsets.UTF_8);
                     }
                 }
             }
             if (email != null && password != null) {
-                User user = Context.getPermissionsManager().login(email, password);
+                User user = loginService.login(email, password);
                 if (user != null) {
-                    Context.getPermissionsManager().checkUserEnabled(user.getId());
                     request.getSession().setAttribute(USER_ID_KEY, user.getId());
+                    LogAction.login(user.getId(), WebHelper.retrieveRemoteAddress(request));
                     return user;
                 }
             }
 
         } else {
 
-            Context.getPermissionsManager().checkUserEnabled(userId);
-            return Context.getPermissionsManager().getUser(userId);
+            User user = permissionsService.getUser(userId);
+            if (user != null) {
+                return user;
+            }
 
         }
 
         throw new WebApplicationException(Response.status(Response.Status.NOT_FOUND).build());
     }
 
+    @Path("{id}")
+    @GET
+    public User get(@PathParam("id") long userId) throws StorageException {
+        permissionsService.checkUser(getUserId(), userId);
+        User user = storage.getObject(User.class, new Request(
+                new Columns.All(), new Condition.Equals("id", userId)));
+        request.getSession().setAttribute(USER_ID_KEY, user.getId());
+        LogAction.login(user.getId(), WebHelper.retrieveRemoteAddress(request));
+        return user;
+    }
+
     @PermitAll
     @POST
     public User add(
             @FormParam("email") String email, @FormParam("password") String password) throws StorageException {
-        User user = Context.getPermissionsManager().login(email, password);
+        User user = loginService.login(email, password);
         if (user != null) {
             request.getSession().setAttribute(USER_ID_KEY, user.getId());
-            LogAction.login(user.getId());
+            LogAction.login(user.getId(), WebHelper.retrieveRemoteAddress(request));
             return user;
         } else {
-            LogAction.failedLogin(ServletHelper.retrieveRemoteAddress(request));
+            LogAction.failedLogin(WebHelper.retrieveRemoteAddress(request));
             throw new WebApplicationException(Response.status(Response.Status.UNAUTHORIZED).build());
         }
     }
 
     @DELETE
     public Response remove() {
-        LogAction.logout(getUserId());
+        LogAction.logout(getUserId(), WebHelper.retrieveRemoteAddress(request));
         request.getSession().removeAttribute(USER_ID_KEY);
         return Response.noContent().build();
     }
 
+    @Path("token")
+    @POST
+    public String requestToken(
+            @FormParam("expiration") Date expiration) throws StorageException, GeneralSecurityException, IOException {
+        return tokenManager.generateToken(getUserId(), expiration);
+    }
+
+    @PermitAll
+    @Path("openid/auth")
+    @GET
+    public Response openIdAuth() throws IOException {
+        return Response.seeOther(openIdProvider.createAuthUri()).build();
+    }
+
+    @PermitAll
+    @Path("openid/callback")
+    @GET
+    public Response requestToken() throws IOException, StorageException, ParseException, GeneralSecurityException {
+        StringBuilder requestUrl = new StringBuilder(request.getRequestURL().toString());
+        String queryString = request.getQueryString();
+        String requestUri = requestUrl.append('?').append(queryString).toString();
+
+        return Response.seeOther(openIdProvider.handleCallback(URI.create(requestUri), request)).build();
+    }
 }
diff --git a/src/main/java/org/traccar/api/resource/StatisticsResource.java b/src/main/java/org/traccar/api/resource/StatisticsResource.java
index 5c0734877..0c728c77d 100644
--- a/src/main/java/org/traccar/api/resource/StatisticsResource.java
+++ b/src/main/java/org/traccar/api/resource/StatisticsResource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,17 +15,20 @@
  */
 package org.traccar.api.resource;
 
-import org.traccar.Context;
 import org.traccar.api.BaseResource;
 import org.traccar.model.Statistics;
 import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Order;
+import org.traccar.storage.query.Request;
 
-import javax.ws.rs.Consumes;
-import javax.ws.rs.GET;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
-import javax.ws.rs.QueryParam;
-import javax.ws.rs.core.MediaType;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.MediaType;
 import java.util.Collection;
 import java.util.Date;
 
@@ -37,8 +40,11 @@ public class StatisticsResource extends BaseResource {
     @GET
     public Collection<Statistics> get(
             @QueryParam("from") Date from, @QueryParam("to") Date to) throws StorageException {
-        Context.getPermissionsManager().checkAdmin(getUserId());
-        return Context.getDataManager().getStatistics(from, to);
+        permissionsService.checkAdmin(getUserId());
+        return storage.getObjects(Statistics.class, new Request(
+                new Columns.All(),
+                new Condition.Between("captureTime", "from", from, "to", to),
+                new Order("captureTime")));
     }
 
 }
diff --git a/src/main/java/org/traccar/api/resource/UserResource.java b/src/main/java/org/traccar/api/resource/UserResource.java
index 83bb8fd0b..cbee3bd4a 100644
--- a/src/main/java/org/traccar/api/resource/UserResource.java
+++ b/src/main/java/org/traccar/api/resource/UserResource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,81 +15,99 @@
  */
 package org.traccar.api.resource;
 
-import org.traccar.Context;
 import org.traccar.api.BaseObjectResource;
-import org.traccar.config.Keys;
-import org.traccar.database.UsersManager;
+import org.traccar.config.Config;
 import org.traccar.helper.LogAction;
+import org.traccar.helper.model.UserUtil;
 import org.traccar.model.ManagedUser;
+import org.traccar.model.Permission;
 import org.traccar.model.User;
 import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
 
-import javax.annotation.security.PermitAll;
-import javax.ws.rs.Consumes;
-import javax.ws.rs.GET;
-import javax.ws.rs.POST;
-import javax.ws.rs.Path;
-import javax.ws.rs.Produces;
-import javax.ws.rs.QueryParam;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
-import java.sql.SQLException;
+import jakarta.annotation.security.PermitAll;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
 import java.util.Collection;
-import java.util.Date;
-import java.util.Set;
 
 @Path("users")
 @Produces(MediaType.APPLICATION_JSON)
 @Consumes(MediaType.APPLICATION_JSON)
 public class UserResource extends BaseObjectResource<User> {
 
+    @Inject
+    private Config config;
+
     public UserResource() {
         super(User.class);
     }
 
     @GET
-    public Collection<User> get(@QueryParam("userId") long userId) throws SQLException {
-        UsersManager usersManager = Context.getUsersManager();
-        Set<Long> result;
-        if (Context.getPermissionsManager().getUserAdmin(getUserId())) {
-            if (userId != 0) {
-                result = usersManager.getUserItems(userId);
-            } else {
-                result = usersManager.getAllItems();
-            }
-        } else if (Context.getPermissionsManager().getUserManager(getUserId())) {
-            result = usersManager.getManagedItems(getUserId());
+    public Collection<User> get(@QueryParam("userId") long userId) throws StorageException {
+        if (userId > 0) {
+            permissionsService.checkUser(getUserId(), userId);
+            return storage.getObjects(baseClass, new Request(
+                    new Columns.All(),
+                    new Condition.Permission(User.class, userId, ManagedUser.class).excludeGroups()));
+        } else if (permissionsService.notAdmin(getUserId())) {
+            return storage.getObjects(baseClass, new Request(
+                    new Columns.All(),
+                    new Condition.Permission(User.class, getUserId(), ManagedUser.class).excludeGroups()));
         } else {
-            throw new SecurityException("Admin or manager access required");
+            return storage.getObjects(baseClass, new Request(new Columns.All()));
         }
-        return usersManager.getItems(result);
     }
 
     @Override
     @PermitAll
     @POST
     public Response add(User entity) throws StorageException {
-        if (!Context.getPermissionsManager().getUserAdmin(getUserId())) {
-            Context.getPermissionsManager().checkUserUpdate(getUserId(), new User(), entity);
-            if (Context.getPermissionsManager().getUserManager(getUserId())) {
-                Context.getPermissionsManager().checkUserLimit(getUserId());
+        User currentUser = getUserId() > 0 ? permissionsService.getUser(getUserId()) : null;
+        if (currentUser == null || !currentUser.getAdministrator()) {
+            permissionsService.checkUserUpdate(getUserId(), new User(), entity);
+            if (currentUser != null && currentUser.getUserLimit() != 0) {
+                int userLimit = currentUser.getUserLimit();
+                if (userLimit > 0) {
+                    int userCount = storage.getObjects(baseClass, new Request(
+                            new Columns.All(),
+                            new Condition.Permission(User.class, getUserId(), ManagedUser.class).excludeGroups()))
+                            .size();
+                    if (userCount >= userLimit) {
+                        throw new SecurityException("Manager user limit reached");
+                    }
+                }
             } else {
-                Context.getPermissionsManager().checkRegistration(getUserId());
-                entity.setDeviceLimit(Context.getConfig().getInteger(Keys.USERS_DEFAULT_DEVICE_LIMIT));
-                int expirationDays = Context.getConfig().getInteger(Keys.USERS_DEFAULT_EXPIRATION_DAYS);
-                if (expirationDays > 0) {
-                    entity.setExpirationTime(
-                        new Date(System.currentTimeMillis() + (long) expirationDays * 24 * 3600 * 1000));
+                if (!permissionsService.getServer().getRegistration()) {
+                    throw new SecurityException("Registration disabled");
                 }
+                UserUtil.setUserDefaults(entity, config);
             }
         }
-        Context.getUsersManager().addItem(entity);
+
+        if (UserUtil.isEmpty(storage)) {
+            entity.setAdministrator(true);
+        }
+
+        entity.setId(storage.addObject(entity, new Request(new Columns.Exclude("id"))));
+        storage.updateObject(entity, new Request(
+                new Columns.Include("hashedPassword", "salt"),
+                new Condition.Equals("id", entity.getId())));
+
         LogAction.create(getUserId(), entity);
-        if (Context.getPermissionsManager().getUserManager(getUserId())) {
-            Context.getDataManager().linkObject(User.class, getUserId(), ManagedUser.class, entity.getId(), true);
+
+        if (currentUser != null && currentUser.getUserLimit() != 0) {
+            storage.addPermission(new Permission(User.class, getUserId(), ManagedUser.class, entity.getId()));
             LogAction.link(getUserId(), User.class, getUserId(), ManagedUser.class, entity.getId());
         }
-        Context.getUsersManager().refreshUserItems();
         return Response.ok(entity).build();
     }
 
diff --git a/src/main/java/org/traccar/api/security/LoginService.java b/src/main/java/org/traccar/api/security/LoginService.java
new file mode 100644
index 000000000..91e964ee9
--- /dev/null
+++ b/src/main/java/org/traccar/api/security/LoginService.java
@@ -0,0 +1,129 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.api.security;
+
+import org.traccar.api.signature.TokenManager;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.database.LdapProvider;
+import org.traccar.helper.model.UserUtil;
+import org.traccar.model.User;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.annotation.Nullable;
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+
+@Singleton
+public class LoginService {
+
+    private final Config config;
+    private final Storage storage;
+    private final TokenManager tokenManager;
+    private final LdapProvider ldapProvider;
+
+    private final String serviceAccountToken;
+    private final boolean forceLdap;
+    private final boolean forceOpenId;
+
+    @Inject
+    public LoginService(
+            Config config, Storage storage, TokenManager tokenManager, @Nullable LdapProvider ldapProvider) {
+        this.storage = storage;
+        this.config = config;
+        this.tokenManager = tokenManager;
+        this.ldapProvider = ldapProvider;
+        serviceAccountToken = config.getString(Keys.WEB_SERVICE_ACCOUNT_TOKEN);
+        forceLdap = config.getBoolean(Keys.LDAP_FORCE);
+        forceOpenId = config.getBoolean(Keys.OPENID_FORCE);
+    }
+
+    public User login(String token) throws StorageException, GeneralSecurityException, IOException {
+        if (serviceAccountToken != null && serviceAccountToken.equals(token)) {
+            return new ServiceAccountUser();
+        }
+        long userId = tokenManager.verifyToken(token);
+        User user = storage.getObject(User.class, new Request(
+                new Columns.All(), new Condition.Equals("id", userId)));
+        if (user != null) {
+            checkUserEnabled(user);
+        }
+        return user;
+    }
+
+    public User login(String email, String password) throws StorageException {
+        if (forceOpenId) {
+            return null;
+        }
+
+        email = email.trim();
+        User user = storage.getObject(User.class, new Request(
+                new Columns.All(),
+                new Condition.Or(
+                        new Condition.Equals("email", email),
+                        new Condition.Equals("login", email))));
+        if (user != null) {
+            if (ldapProvider != null && user.getLogin() != null && ldapProvider.login(user.getLogin(), password)
+                    || !forceLdap && user.isPasswordValid(password)) {
+                checkUserEnabled(user);
+                return user;
+            }
+        } else {
+            if (ldapProvider != null && ldapProvider.login(email, password)) {
+                user = ldapProvider.getUser(email);
+                user.setId(storage.addObject(user, new Request(new Columns.Exclude("id"))));
+                checkUserEnabled(user);
+                return user;
+            }
+        }
+        return null;
+    }
+
+    public User login(String email, String name, Boolean administrator) throws StorageException {
+        User user = storage.getObject(User.class, new Request(
+            new Columns.All(),
+            new Condition.Equals("email", email)));
+
+        if (user != null) {
+            checkUserEnabled(user);
+            return user;
+        } else {
+            user = new User();
+            UserUtil.setUserDefaults(user, config);
+            user.setName(name);
+            user.setEmail(email);
+            user.setFixedEmail(true);
+            user.setAdministrator(administrator);
+            user.setId(storage.addObject(user, new Request(new Columns.Exclude("id"))));
+            checkUserEnabled(user);
+            return user;
+        }
+    }
+
+    private void checkUserEnabled(User user) throws SecurityException {
+        if (user == null) {
+            throw new SecurityException("Unknown account");
+        }
+        user.checkDisabled();
+    }
+
+}
diff --git a/src/main/java/org/traccar/api/security/PermissionsService.java b/src/main/java/org/traccar/api/security/PermissionsService.java
new file mode 100644
index 000000000..d60bbafb8
--- /dev/null
+++ b/src/main/java/org/traccar/api/security/PermissionsService.java
@@ -0,0 +1,225 @@
+/*
+ * Copyright 2022 - 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.api.security;
+
+import com.google.inject.servlet.RequestScoped;
+import org.traccar.model.BaseModel;
+import org.traccar.model.Calendar;
+import org.traccar.model.Command;
+import org.traccar.model.Device;
+import org.traccar.model.Group;
+import org.traccar.model.GroupedModel;
+import org.traccar.model.ManagedUser;
+import org.traccar.model.Notification;
+import org.traccar.model.Schedulable;
+import org.traccar.model.Server;
+import org.traccar.model.User;
+import org.traccar.model.UserRestrictions;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import java.util.Objects;
+
+@RequestScoped
+public class PermissionsService {
+
+    private final Storage storage;
+
+    private Server server;
+    private User user;
+
+    @Inject
+    public PermissionsService(Storage storage) {
+        this.storage = storage;
+    }
+
+    public Server getServer() throws StorageException {
+        if (server == null) {
+            server = storage.getObject(
+                    Server.class, new Request(new Columns.All()));
+        }
+        return server;
+    }
+
+    public User getUser(long userId) throws StorageException {
+        if (user == null && userId > 0) {
+            if (userId == ServiceAccountUser.ID) {
+                user = new ServiceAccountUser();
+            } else {
+                user = storage.getObject(
+                        User.class, new Request(new Columns.All(), new Condition.Equals("id", userId)));
+            }
+        }
+        return user;
+    }
+
+    public boolean notAdmin(long userId) throws StorageException {
+        return !getUser(userId).getAdministrator();
+    }
+
+    public void checkAdmin(long userId) throws StorageException, SecurityException {
+        if (!getUser(userId).getAdministrator()) {
+            throw new SecurityException("Administrator access required");
+        }
+    }
+
+    public void checkManager(long userId) throws StorageException, SecurityException {
+        if (!getUser(userId).getAdministrator() && getUser(userId).getUserLimit() == 0) {
+            throw new SecurityException("Manager access required");
+        }
+    }
+
+    public interface CheckRestrictionCallback {
+        boolean denied(UserRestrictions userRestrictions);
+    }
+
+    public void checkRestriction(
+            long userId, CheckRestrictionCallback callback) throws StorageException, SecurityException {
+        if (!getUser(userId).getAdministrator()
+                && (callback.denied(getServer()) || callback.denied(getUser(userId)))) {
+            throw new SecurityException("Operation restricted");
+        }
+    }
+
+    public void checkEdit(long userId, Class<?> clazz, boolean addition) throws StorageException, SecurityException {
+        if (!getUser(userId).getAdministrator()) {
+            boolean denied = false;
+            if (getServer().getReadonly() || getUser(userId).getReadonly()) {
+                denied = true;
+            } else if (clazz.equals(Device.class)) {
+                denied = getServer().getDeviceReadonly() || getUser(userId).getDeviceReadonly()
+                        || addition && getUser(userId).getDeviceLimit() == 0;
+                if (!denied && addition && getUser(userId).getDeviceLimit() > 0) {
+                    int deviceCount = storage.getObjects(Device.class, new Request(
+                            new Columns.Include("id"),
+                            new Condition.Permission(User.class, userId, Device.class))).size();
+                    denied = deviceCount >= getUser(userId).getDeviceLimit();
+                }
+            } else if (clazz.equals(Command.class)) {
+                denied = getServer().getLimitCommands() || getUser(userId).getLimitCommands();
+            }
+            if (denied) {
+                throw new SecurityException("Write access denied");
+            }
+        }
+    }
+
+    public void checkEdit(long userId, BaseModel object, boolean addition) throws StorageException, SecurityException {
+        if (!getUser(userId).getAdministrator()) {
+            checkEdit(userId, object.getClass(), addition);
+            if (object instanceof GroupedModel) {
+                GroupedModel after = ((GroupedModel) object);
+                if (after.getGroupId() > 0) {
+                    GroupedModel before = null;
+                    if (!addition) {
+                        before = storage.getObject(after.getClass(), new Request(
+                                new Columns.Include("groupId"), new Condition.Equals("id", after.getId())));
+                    }
+                    if (before == null || before.getGroupId() != after.getGroupId()) {
+                        checkPermission(Group.class, userId, after.getGroupId());
+                    }
+                }
+            }
+            if (object instanceof Schedulable) {
+                Schedulable after = ((Schedulable) object);
+                if (after.getCalendarId() > 0) {
+                    Schedulable before = null;
+                    if (!addition) {
+                        before = storage.getObject(after.getClass(), new Request(
+                                new Columns.Include("calendarId"), new Condition.Equals("id", object.getId())));
+                    }
+                    if (before == null || before.getCalendarId() != after.getCalendarId()) {
+                        checkPermission(Calendar.class, userId, after.getCalendarId());
+                    }
+                }
+            }
+            if (object instanceof Notification) {
+                Notification after = ((Notification) object);
+                if (after.getCommandId() > 0) {
+                    Notification before = null;
+                    if (!addition) {
+                        before = storage.getObject(after.getClass(), new Request(
+                                new Columns.Include("commandId"), new Condition.Equals("id", object.getId())));
+                    }
+                    if (before == null || before.getCommandId() != after.getCommandId()) {
+                        checkPermission(Command.class, userId, after.getCommandId());
+                    }
+                }
+            }
+        }
+    }
+
+    public void checkUser(long userId, long managedUserId) throws StorageException, SecurityException {
+        if (userId != managedUserId && !getUser(userId).getAdministrator()) {
+            if (!getUser(userId).getManager()
+                    || storage.getPermissions(User.class, userId, ManagedUser.class, managedUserId).isEmpty()) {
+                throw new SecurityException("User access denied");
+            }
+        }
+    }
+
+    public void checkUserUpdate(long userId, User before, User after) throws StorageException, SecurityException {
+        if (before.getAdministrator() != after.getAdministrator()
+                || before.getDeviceLimit() != after.getDeviceLimit()
+                || before.getUserLimit() != after.getUserLimit()) {
+            checkAdmin(userId);
+        }
+        User user = userId > 0 ? getUser(userId) : null;
+        if (user != null && user.getExpirationTime() != null
+                && !Objects.equals(before.getExpirationTime(), after.getExpirationTime())
+                && (after.getExpirationTime() == null
+                || user.getExpirationTime().compareTo(after.getExpirationTime()) < 0)) {
+            checkAdmin(userId);
+        }
+        if (before.getReadonly() != after.getReadonly()
+                || before.getDeviceReadonly() != after.getDeviceReadonly()
+                || before.getDisabled() != after.getDisabled()
+                || before.getLimitCommands() != after.getLimitCommands()
+                || before.getDisableReports() != after.getDisableReports()
+                || before.getFixedEmail() != after.getFixedEmail()) {
+            if (userId == after.getId()) {
+                checkAdmin(userId);
+            } else if (after.getId() > 0) {
+                checkUser(userId, after.getId());
+            } else {
+                checkManager(userId);
+            }
+        }
+        if (before.getFixedEmail() && !before.getEmail().equals(after.getEmail())) {
+            checkAdmin(userId);
+        }
+    }
+
+    public <T extends BaseModel> void checkPermission(
+            Class<T> clazz, long userId, long objectId) throws StorageException, SecurityException {
+        if (!getUser(userId).getAdministrator() && !(clazz.equals(User.class) && userId == objectId)) {
+            var object = storage.getObject(clazz, new Request(
+                    new Columns.Include("id"),
+                    new Condition.And(
+                            new Condition.Equals("id", objectId),
+                            new Condition.Permission(
+                                    User.class, userId, clazz.equals(User.class) ? ManagedUser.class : clazz))));
+            if (object == null) {
+                throw new SecurityException(clazz.getSimpleName() + " access denied");
+            }
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/api/security/SecurityRequestFilter.java b/src/main/java/org/traccar/api/security/SecurityRequestFilter.java
index 9f20acb40..a34361854 100644
--- a/src/main/java/org/traccar/api/security/SecurityRequestFilter.java
+++ b/src/main/java/org/traccar/api/security/SecurityRequestFilter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,37 +15,34 @@
  */
 package org.traccar.api.security;
 
+import com.google.inject.Injector;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.traccar.Context;
-import org.traccar.Main;
 import org.traccar.api.resource.SessionResource;
 import org.traccar.database.StatisticsManager;
 import org.traccar.helper.DataConverter;
 import org.traccar.model.User;
 import org.traccar.storage.StorageException;
 
-import javax.annotation.security.PermitAll;
-import javax.servlet.http.HttpServletRequest;
-import javax.ws.rs.WebApplicationException;
-import javax.ws.rs.container.ContainerRequestContext;
-import javax.ws.rs.container.ContainerRequestFilter;
-import javax.ws.rs.container.ResourceInfo;
-import javax.ws.rs.core.Response;
-import javax.ws.rs.core.SecurityContext;
+import jakarta.annotation.security.PermitAll;
+import jakarta.inject.Inject;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.ws.rs.WebApplicationException;
+import jakarta.ws.rs.container.ContainerRequestContext;
+import jakarta.ws.rs.container.ContainerRequestFilter;
+import jakarta.ws.rs.container.ResourceInfo;
+import jakarta.ws.rs.core.Context;
+import jakarta.ws.rs.core.Response;
+import jakarta.ws.rs.core.SecurityContext;
+import java.io.IOException;
 import java.lang.reflect.Method;
 import java.nio.charset.StandardCharsets;
+import java.security.GeneralSecurityException;
 
 public class SecurityRequestFilter implements ContainerRequestFilter {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(SecurityRequestFilter.class);
 
-    public static final String AUTHORIZATION_HEADER = "Authorization";
-    public static final String WWW_AUTHENTICATE = "WWW-Authenticate";
-    public static final String BASIC_REALM = "Basic realm=\"api\"";
-    public static final String X_REQUESTED_WITH = "X-Requested-With";
-    public static final String XML_HTTP_REQUEST = "XMLHttpRequest";
-
     public static String[] decodeBasicAuth(String auth) {
         auth = auth.replaceFirst("[B|b]asic ", "");
         byte[] decodedBytes = DataConverter.parseBase64(auth);
@@ -55,12 +52,21 @@ public class SecurityRequestFilter implements ContainerRequestFilter {
         return null;
     }
 
-    @javax.ws.rs.core.Context
+    @Context
     private HttpServletRequest request;
 
-    @javax.ws.rs.core.Context
+    @Context
     private ResourceInfo resourceInfo;
 
+    @Inject
+    private LoginService loginService;
+
+    @Inject
+    private StatisticsManager statisticsManager;
+
+    @Inject
+    private Injector injector;
+
     @Override
     public void filter(ContainerRequestContext requestContext) {
 
@@ -72,17 +78,22 @@ public class SecurityRequestFilter implements ContainerRequestFilter {
 
         try {
 
-            String authHeader = requestContext.getHeaderString(AUTHORIZATION_HEADER);
+            String authHeader = requestContext.getHeaderString("Authorization");
             if (authHeader != null) {
 
                 try {
-                    String[] auth = decodeBasicAuth(authHeader);
-                    User user = Context.getPermissionsManager().login(auth[0], auth[1]);
+                    User user;
+                    if (authHeader.startsWith("Bearer ")) {
+                        user = loginService.login(authHeader.substring(7));
+                    } else {
+                        String[] auth = decodeBasicAuth(authHeader);
+                        user = loginService.login(auth[0], auth[1]);
+                    }
                     if (user != null) {
-                        Main.getInjector().getInstance(StatisticsManager.class).registerRequest(user.getId());
+                        statisticsManager.registerRequest(user.getId());
                         securityContext = new UserSecurityContext(new UserPrincipal(user.getId()));
                     }
-                } catch (StorageException e) {
+                } catch (StorageException | GeneralSecurityException | IOException e) {
                     throw new WebApplicationException(e);
                 }
 
@@ -90,14 +101,14 @@ public class SecurityRequestFilter implements ContainerRequestFilter {
 
                 Long userId = (Long) request.getSession().getAttribute(SessionResource.USER_ID_KEY);
                 if (userId != null) {
-                    Context.getPermissionsManager().checkUserEnabled(userId);
-                    Main.getInjector().getInstance(StatisticsManager.class).registerRequest(userId);
+                    injector.getInstance(PermissionsService.class).getUser(userId).checkDisabled();
+                    statisticsManager.registerRequest(userId);
                     securityContext = new UserSecurityContext(new UserPrincipal(userId));
                 }
 
             }
 
-        } catch (SecurityException e) {
+        } catch (SecurityException | StorageException e) {
             LOGGER.warn("Authentication error", e);
         }
 
@@ -107,8 +118,9 @@ public class SecurityRequestFilter implements ContainerRequestFilter {
             Method method = resourceInfo.getResourceMethod();
             if (!method.isAnnotationPresent(PermitAll.class)) {
                 Response.ResponseBuilder responseBuilder = Response.status(Response.Status.UNAUTHORIZED);
-                if (!XML_HTTP_REQUEST.equals(request.getHeader(X_REQUESTED_WITH))) {
-                    responseBuilder.header(WWW_AUTHENTICATE, BASIC_REALM);
+                String accept = request.getHeader("Accept");
+                if (accept != null && accept.contains("text/html")) {
+                    responseBuilder.header("WWW-Authenticate", "Basic realm=\"api\"");
                 }
                 throw new WebApplicationException(responseBuilder.build());
             }
diff --git a/src/main/java/org/traccar/database/MaintenancesManager.java b/src/main/java/org/traccar/api/security/ServiceAccountUser.java
index 4e266cb78..644142434 100644
--- a/src/main/java/org/traccar/database/MaintenancesManager.java
+++ b/src/main/java/org/traccar/api/security/ServiceAccountUser.java
@@ -1,6 +1,5 @@
 /*
- * Copyright 2018 Anton Tananaev (anton@traccar.org)
- * Copyright 2018 Andrey Kunitsyn (andrey@traccar.org)
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,14 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.traccar.database;
+package org.traccar.api.security;
 
-import org.traccar.model.Maintenance;
+import org.traccar.model.User;
 
-public class MaintenancesManager extends ExtendedObjectManager<Maintenance> {
+public class ServiceAccountUser extends User {
 
-    public MaintenancesManager(DataManager dataManager) {
-        super(dataManager, Maintenance.class);
-    }
+    public static final long ID = 9000000000000000000L;
 
+    public ServiceAccountUser() {
+        setId(ID);
+        setName("Service Account");
+        setEmail("none");
+        setAdministrator(true);
+    }
 }
diff --git a/src/main/java/org/traccar/api/security/UserSecurityContext.java b/src/main/java/org/traccar/api/security/UserSecurityContext.java
index 97df6b6c7..f7adeac64 100644
--- a/src/main/java/org/traccar/api/security/UserSecurityContext.java
+++ b/src/main/java/org/traccar/api/security/UserSecurityContext.java
@@ -15,7 +15,7 @@
  */
 package org.traccar.api.security;
 
-import javax.ws.rs.core.SecurityContext;
+import jakarta.ws.rs.core.SecurityContext;
 import java.security.Principal;
 
 public class UserSecurityContext implements SecurityContext {
diff --git a/src/main/java/org/traccar/api/signature/CryptoManager.java b/src/main/java/org/traccar/api/signature/CryptoManager.java
new file mode 100644
index 000000000..71f56e0fb
--- /dev/null
+++ b/src/main/java/org/traccar/api/signature/CryptoManager.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.api.signature;
+
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.security.GeneralSecurityException;
+import java.security.KeyFactory;
+import java.security.KeyPair;
+import java.security.KeyPairGenerator;
+import java.security.PrivateKey;
+import java.security.PublicKey;
+import java.security.SecureRandom;
+import java.security.Signature;
+import java.security.spec.ECGenParameterSpec;
+import java.security.spec.PKCS8EncodedKeySpec;
+import java.security.spec.X509EncodedKeySpec;
+
+@Singleton
+public class CryptoManager {
+
+    private final Storage storage;
+
+    private PublicKey publicKey;
+    private PrivateKey privateKey;
+
+    @Inject
+    public CryptoManager(Storage storage) {
+        this.storage = storage;
+    }
+
+    public byte[] sign(byte[] data) throws GeneralSecurityException, StorageException {
+        if (privateKey == null) {
+            initializeKeys();
+        }
+        Signature signature = Signature.getInstance("SHA256withECDSA");
+        signature.initSign(privateKey);
+        signature.update(data);
+        byte[] block = signature.sign();
+        byte[] combined = new byte[1 + block.length + data.length];
+        combined[0] = (byte) block.length;
+        System.arraycopy(block, 0, combined, 1, block.length);
+        System.arraycopy(data, 0, combined, 1 + block.length, data.length);
+        return combined;
+    }
+
+    public byte[] verify(byte[] data) throws GeneralSecurityException, StorageException {
+        if (publicKey == null) {
+            initializeKeys();
+        }
+        Signature signature = Signature.getInstance("SHA256withECDSA");
+        signature.initVerify(publicKey);
+        int length = data[0];
+        byte[] originalData = new byte[data.length - 1 - length];
+        System.arraycopy(data, 1 + length, originalData, 0, originalData.length);
+        signature.update(originalData);
+        if (!signature.verify(data, 1, length)) {
+            throw new SecurityException("Invalid signature");
+        }
+        return originalData;
+    }
+
+    private void initializeKeys() throws StorageException, GeneralSecurityException {
+        KeystoreModel model = storage.getObject(KeystoreModel.class, new Request(new Columns.All()));
+        if (model != null) {
+            publicKey = KeyFactory.getInstance("EC")
+                    .generatePublic(new X509EncodedKeySpec(model.getPublicKey()));
+            privateKey = KeyFactory.getInstance("EC")
+                    .generatePrivate(new PKCS8EncodedKeySpec(model.getPrivateKey()));
+        } else {
+            KeyPairGenerator generator = KeyPairGenerator.getInstance("EC");
+            generator.initialize(new ECGenParameterSpec("secp256r1"), new SecureRandom());
+            KeyPair pair = generator.generateKeyPair();
+
+            publicKey = pair.getPublic();
+            privateKey = pair.getPrivate();
+
+            model = new KeystoreModel();
+            model.setPublicKey(publicKey.getEncoded());
+            model.setPrivateKey(privateKey.getEncoded());
+            storage.addObject(model, new Request(new Columns.Exclude("id")));
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/api/signature/KeystoreModel.java b/src/main/java/org/traccar/api/signature/KeystoreModel.java
new file mode 100644
index 000000000..7f3140e81
--- /dev/null
+++ b/src/main/java/org/traccar/api/signature/KeystoreModel.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.api.signature;
+
+import org.traccar.model.BaseModel;
+import org.traccar.storage.StorageName;
+
+@StorageName("tc_keystore")
+public class KeystoreModel extends BaseModel {
+
+    private byte[] publicKey;
+
+    public byte[] getPublicKey() {
+        return publicKey;
+    }
+
+    public void setPublicKey(byte[] publicKey) {
+        this.publicKey = publicKey;
+    }
+
+    private byte[] privateKey;
+
+    public byte[] getPrivateKey() {
+        return privateKey;
+    }
+
+    public void setPrivateKey(byte[] privateKey) {
+        this.privateKey = privateKey;
+    }
+
+}
diff --git a/src/main/java/org/traccar/api/signature/TokenManager.java b/src/main/java/org/traccar/api/signature/TokenManager.java
new file mode 100644
index 000000000..3019e12b9
--- /dev/null
+++ b/src/main/java/org/traccar/api/signature/TokenManager.java
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.api.signature;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.apache.commons.codec.binary.Base64;
+import org.traccar.storage.StorageException;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+import java.util.Date;
+import java.util.concurrent.TimeUnit;
+
+@Singleton
+public class TokenManager {
+
+    private static final int DEFAULT_EXPIRATION_DAYS = 7;
+
+    private final ObjectMapper objectMapper;
+    private final CryptoManager cryptoManager;
+
+    public static class Data {
+        @JsonProperty("u")
+        private long userId;
+        @JsonProperty("e")
+        private Date expiration;
+    }
+
+    @Inject
+    public TokenManager(ObjectMapper objectMapper, CryptoManager cryptoManager) {
+        this.objectMapper = objectMapper;
+        this.cryptoManager = cryptoManager;
+    }
+
+    public String generateToken(long userId) throws IOException, GeneralSecurityException, StorageException {
+        return generateToken(userId, null);
+    }
+
+    public String generateToken(
+            long userId, Date expiration) throws IOException, GeneralSecurityException, StorageException {
+        Data data = new Data();
+        data.userId = userId;
+        if (expiration != null) {
+            data.expiration = expiration;
+        } else {
+            data.expiration = new Date(System.currentTimeMillis() + TimeUnit.DAYS.toMillis(DEFAULT_EXPIRATION_DAYS));
+        }
+        byte[] encoded = objectMapper.writeValueAsBytes(data);
+        return Base64.encodeBase64URLSafeString(cryptoManager.sign(encoded));
+    }
+
+    public long verifyToken(String token) throws IOException, GeneralSecurityException, StorageException {
+        byte[] encoded = cryptoManager.verify(Base64.decodeBase64(token));
+        Data data = objectMapper.readValue(encoded, Data.class);
+        if (data.expiration.before(new Date())) {
+            throw new SecurityException("Token has expired");
+        }
+        return data.userId;
+    }
+
+}
diff --git a/src/main/java/org/traccar/broadcast/BaseBroadcastService.java b/src/main/java/org/traccar/broadcast/BaseBroadcastService.java
new file mode 100644
index 000000000..a95d333f2
--- /dev/null
+++ b/src/main/java/org/traccar/broadcast/BaseBroadcastService.java
@@ -0,0 +1,118 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.broadcast;
+
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+import org.traccar.model.BaseModel;
+import org.traccar.model.Device;
+import org.traccar.model.Event;
+import org.traccar.model.Permission;
+import org.traccar.model.Position;
+
+public abstract class BaseBroadcastService implements BroadcastService {
+
+    private final Set<BroadcastInterface> listeners = new HashSet<>();
+
+    @Override
+    public boolean singleInstance() {
+        return true;
+    }
+
+    @Override
+    public void registerListener(BroadcastInterface listener) {
+        listeners.add(listener);
+    }
+
+    @Override
+    public void updateDevice(boolean local, Device device) {
+        BroadcastMessage message = new BroadcastMessage();
+        message.setDevice(device);
+        sendMessage(message);
+    }
+
+    @Override
+    public void updatePosition(boolean local, Position position) {
+        BroadcastMessage message = new BroadcastMessage();
+        message.setPosition(position);
+        sendMessage(message);
+    }
+
+    @Override
+    public void updateEvent(boolean local, long userId, Event event) {
+        BroadcastMessage message = new BroadcastMessage();
+        message.setUserId(userId);
+        message.setEvent(event);
+        sendMessage(message);
+    }
+
+    @Override
+    public void updateCommand(boolean local, long deviceId) {
+        BroadcastMessage message = new BroadcastMessage();
+        message.setCommandDeviceId(deviceId);
+        sendMessage(message);
+    }
+
+    @Override
+    public void invalidateObject(boolean local, Class<? extends BaseModel> clazz, long id) {
+        BroadcastMessage message = new BroadcastMessage();
+        message.setChanges(Map.of(Permission.getKey(clazz), id));
+        sendMessage(message);
+    }
+
+    @Override
+    public void invalidatePermission(
+            boolean local,
+            Class<? extends BaseModel> clazz1, long id1,
+            Class<? extends BaseModel> clazz2, long id2) {
+        BroadcastMessage message = new BroadcastMessage();
+        message.setChanges(Map.of(Permission.getKey(clazz1), id1, Permission.getKey(clazz2), id2));
+        sendMessage(message);
+    }
+
+    protected abstract void sendMessage(BroadcastMessage message);
+
+    protected void handleMessage(BroadcastMessage message) {
+        if (message.getDevice() != null) {
+            listeners.forEach(listener -> listener.updateDevice(false, message.getDevice()));
+        } else if (message.getPosition() != null) {
+            listeners.forEach(listener -> listener.updatePosition(false, message.getPosition()));
+        } else if (message.getUserId() != null && message.getEvent() != null) {
+            listeners.forEach(listener -> listener.updateEvent(false, message.getUserId(), message.getEvent()));
+        } else if (message.getCommandDeviceId() != null) {
+            listeners.forEach(listener -> listener.updateCommand(false, message.getCommandDeviceId()));
+        } else if (message.getChanges() != null) {
+            var iterator = message.getChanges().entrySet().iterator();
+            if (iterator.hasNext()) {
+                var first = iterator.next();
+                if (iterator.hasNext()) {
+                    var second = iterator.next();
+                    listeners.forEach(listener -> listener.invalidatePermission(
+                            false,
+                            Permission.getKeyClass(first.getKey()), first.getValue(),
+                            Permission.getKeyClass(second.getKey()), second.getValue()));
+                } else {
+                    listeners.forEach(listener -> listener.invalidateObject(
+                            false,
+                            Permission.getKeyClass(first.getKey()), first.getValue()));
+                }
+            }
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/broadcast/BroadcastInterface.java b/src/main/java/org/traccar/broadcast/BroadcastInterface.java
new file mode 100644
index 000000000..673ebd8b8
--- /dev/null
+++ b/src/main/java/org/traccar/broadcast/BroadcastInterface.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.broadcast;
+
+import org.traccar.model.BaseModel;
+import org.traccar.model.Device;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+
+public interface BroadcastInterface {
+
+    default void updateDevice(boolean local, Device device) {
+    }
+
+    default void updatePosition(boolean local, Position position) {
+    }
+
+    default void updateEvent(boolean local, long userId, Event event) {
+    }
+
+    default void updateCommand(boolean local, long deviceId) {
+    }
+
+    default void invalidateObject(boolean local, Class<? extends BaseModel> clazz, long id) {
+    }
+
+    default void invalidatePermission(
+            boolean local,
+            Class<? extends BaseModel> clazz1, long id1,
+            Class<? extends BaseModel> clazz2, long id2) {
+    }
+}
diff --git a/src/main/java/org/traccar/broadcast/BroadcastMessage.java b/src/main/java/org/traccar/broadcast/BroadcastMessage.java
new file mode 100644
index 000000000..985848d04
--- /dev/null
+++ b/src/main/java/org/traccar/broadcast/BroadcastMessage.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.broadcast;
+
+import org.traccar.model.Device;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+
+import java.util.Map;
+
+public class BroadcastMessage {
+
+    private Device device;
+
+    public Device getDevice() {
+        return device;
+    }
+
+    public void setDevice(Device device) {
+        this.device = device;
+    }
+
+    private Position position;
+
+    public Position getPosition() {
+        return position;
+    }
+
+    public void setPosition(Position position) {
+        this.position = position;
+    }
+
+    private Long userId;
+
+    public Long getUserId() {
+        return userId;
+    }
+
+    public void setUserId(Long userId) {
+        this.userId = userId;
+    }
+
+    private Event event;
+
+    public Event getEvent() {
+        return event;
+    }
+
+    public void setEvent(Event event) {
+        this.event = event;
+    }
+
+    private Long commandDeviceId;
+
+    public Long getCommandDeviceId() {
+        return commandDeviceId;
+    }
+
+    public void setCommandDeviceId(Long commandDeviceId) {
+        this.commandDeviceId = commandDeviceId;
+    }
+
+    private Map<String, Long> changes;
+
+    public Map<String, Long> getChanges() {
+        return changes;
+    }
+
+    public void setChanges(Map<String, Long> changes) {
+        this.changes = changes;
+    }
+}
diff --git a/src/main/java/org/traccar/broadcast/BroadcastService.java b/src/main/java/org/traccar/broadcast/BroadcastService.java
new file mode 100644
index 000000000..a86c43b5b
--- /dev/null
+++ b/src/main/java/org/traccar/broadcast/BroadcastService.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.broadcast;
+
+import org.traccar.LifecycleObject;
+
+public interface BroadcastService extends LifecycleObject, BroadcastInterface {
+    boolean singleInstance();
+    void registerListener(BroadcastInterface listener);
+}
diff --git a/src/main/java/org/traccar/broadcast/MulticastBroadcastService.java b/src/main/java/org/traccar/broadcast/MulticastBroadcastService.java
new file mode 100644
index 000000000..1c02b319b
--- /dev/null
+++ b/src/main/java/org/traccar/broadcast/MulticastBroadcastService.java
@@ -0,0 +1,112 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.broadcast;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+
+import java.io.IOException;
+import java.net.DatagramPacket;
+import java.net.DatagramSocket;
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.MulticastSocket;
+import java.net.NetworkInterface;
+import java.nio.charset.StandardCharsets;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+public class MulticastBroadcastService extends BaseBroadcastService {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(MulticastBroadcastService.class);
+
+    private final ObjectMapper objectMapper;
+
+    private final NetworkInterface networkInterface;
+    private final int port;
+    private final InetSocketAddress group;
+
+    private DatagramSocket publisherSocket;
+
+    private final ExecutorService service = Executors.newSingleThreadExecutor();
+    private final byte[] receiverBuffer = new byte[4096];
+
+    public MulticastBroadcastService(Config config, ObjectMapper objectMapper) throws IOException {
+        this.objectMapper = objectMapper;
+        port = config.getInteger(Keys.BROADCAST_PORT);
+        String interfaceName = config.getString(Keys.BROADCAST_INTERFACE);
+        if (interfaceName.indexOf('.') >= 0 || interfaceName.indexOf(':') >= 0) {
+            networkInterface = NetworkInterface.getByInetAddress(InetAddress.getByName(interfaceName));
+        } else {
+            networkInterface = NetworkInterface.getByName(interfaceName);
+        }
+        InetAddress address = InetAddress.getByName(config.getString(Keys.BROADCAST_ADDRESS));
+        group = new InetSocketAddress(address, port);
+    }
+
+    @Override
+    public boolean singleInstance() {
+        return false;
+    }
+
+    @Override
+    protected void sendMessage(BroadcastMessage message) {
+        try {
+            byte[] buffer = objectMapper.writeValueAsString(message).getBytes(StandardCharsets.UTF_8);
+            DatagramPacket packet = new DatagramPacket(buffer, buffer.length, group);
+            publisherSocket.send(packet);
+        } catch (IOException e) {
+            LOGGER.warn("Broadcast failed", e);
+        }
+    }
+
+    @Override
+    public void start() throws IOException {
+        service.submit(receiver);
+    }
+
+    @Override
+    public void stop() {
+        service.shutdown();
+    }
+
+    private final Runnable receiver = new Runnable() {
+        @Override
+        public void run() {
+            try (MulticastSocket socket = new MulticastSocket(port)) {
+                socket.setNetworkInterface(networkInterface);
+                socket.joinGroup(group, networkInterface);
+                publisherSocket = socket;
+                while (!service.isShutdown()) {
+                    DatagramPacket packet = new DatagramPacket(receiverBuffer, receiverBuffer.length);
+                    socket.receive(packet);
+                    if (networkInterface.inetAddresses().noneMatch(a -> a.equals(packet.getAddress()))) {
+                        String data = new String(packet.getData(), 0, packet.getLength(), StandardCharsets.UTF_8);
+                        handleMessage(objectMapper.readValue(data, BroadcastMessage.class));
+                    }
+                }
+                publisherSocket = null;
+                socket.leaveGroup(group, networkInterface);
+            } catch (IOException e) {
+                throw new RuntimeException(e);
+            }
+        }
+    };
+
+}
diff --git a/src/main/java/org/traccar/api/ObjectMapperProvider.java b/src/main/java/org/traccar/broadcast/NullBroadcastService.java
index f81b20917..f95037990 100644
--- a/src/main/java/org/traccar/api/ObjectMapperProvider.java
+++ b/src/main/java/org/traccar/broadcast/NullBroadcastService.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,20 +13,24 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.traccar.api;
+package org.traccar.broadcast;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
-import org.traccar.Context;
+public class NullBroadcastService implements BroadcastService {
 
-import javax.ws.rs.ext.ContextResolver;
-import javax.ws.rs.ext.Provider;
+    @Override
+    public boolean singleInstance() {
+        return true;
+    }
 
-@Provider
-public class ObjectMapperProvider implements ContextResolver<ObjectMapper> {
+    @Override
+    public void registerListener(BroadcastInterface listener) {
+    }
 
     @Override
-    public ObjectMapper getContext(Class<?> type) {
-        return Context.getObjectMapper();
+    public void start() throws Exception {
     }
 
+    @Override
+    public void stop() throws Exception {
+    }
 }
diff --git a/src/main/java/org/traccar/broadcast/RedisBroadcastService.java b/src/main/java/org/traccar/broadcast/RedisBroadcastService.java
new file mode 100644
index 000000000..e87ad5e61
--- /dev/null
+++ b/src/main/java/org/traccar/broadcast/RedisBroadcastService.java
@@ -0,0 +1,130 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.broadcast;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+
+import java.io.IOException;
+import java.util.UUID;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import redis.clients.jedis.Jedis;
+import redis.clients.jedis.JedisPubSub;
+import redis.clients.jedis.exceptions.JedisConnectionException;
+import redis.clients.jedis.exceptions.JedisException;
+
+public class RedisBroadcastService extends BaseBroadcastService {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(RedisBroadcastService.class);
+
+    private final ObjectMapper objectMapper;
+
+    private final ExecutorService service = Executors.newSingleThreadExecutor();
+
+    private final String url;
+    private final String channel = "traccar";
+
+    private Jedis subscriber;
+    private Jedis publisher;
+
+    private final String id = UUID.randomUUID().toString();
+
+    public RedisBroadcastService(Config config, ObjectMapper objectMapper) throws IOException {
+        this.objectMapper = objectMapper;
+        url = config.getString(Keys.BROADCAST_ADDRESS);
+
+        try {
+            subscriber = new Jedis(url);
+            publisher = new Jedis(url);
+            subscriber.connect();
+        } catch (JedisConnectionException e) {
+            throw new IOException(e);
+        }
+    }
+
+    @Override
+    public boolean singleInstance() {
+        return false;
+    }
+
+    @Override
+    protected void sendMessage(BroadcastMessage message) {
+        try {
+            String payload = id  + ":" + objectMapper.writeValueAsString(message);
+            publisher.publish(channel, payload);
+        } catch (IOException e) {
+            LOGGER.warn("Broadcast failed", e);
+        } catch (JedisConnectionException e) {
+            LOGGER.warn("Broadcast failed", e);
+        }
+    }
+
+    @Override
+    public void start() throws IOException {
+        service.submit(receiver);
+    }
+
+    @Override
+    public void stop() {
+        try {
+            if (subscriber != null) {
+                subscriber.close();
+                subscriber = null;
+            }
+        } catch (JedisException e) {
+            LOGGER.warn("Subscriber close failed", e);
+        }
+        try {
+            if (publisher != null) {
+                publisher.close();
+                publisher = null;
+            }
+        } catch (JedisException e) {
+            LOGGER.warn("Publisher close failed", e);
+        }
+        service.shutdown();
+    }
+
+    private final Runnable receiver = new Runnable() {
+        @Override
+        public void run() {
+            try {
+                subscriber.subscribe(new JedisPubSub() {
+                    @Override
+                    public void onMessage(String messageChannel, String message) {
+                        try {
+                            String[] parts = message.split(":", 2);
+                            if (messageChannel.equals(channel) && parts.length == 2 && !id.equals(parts[0])) {
+                                handleMessage(objectMapper.readValue(parts[1], BroadcastMessage.class));
+                            }
+                        } catch (IOException e) {
+                            LOGGER.warn("Broadcast handleMessage failed", e);
+                        }
+                    }
+                }, channel);
+            } catch (JedisConnectionException e) {
+                throw new RuntimeException(e);
+            } catch (JedisException e) {
+                throw new RuntimeException(e);
+            }
+        }
+    };
+
+}
diff --git a/src/main/java/org/traccar/config/Config.java b/src/main/java/org/traccar/config/Config.java
index 815a6e86a..47e1f0707 100644
--- a/src/main/java/org/traccar/config/Config.java
+++ b/src/main/java/org/traccar/config/Config.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,13 +16,19 @@
 package org.traccar.config;
 
 import com.google.common.annotations.VisibleForTesting;
+import com.google.inject.name.Named;
+import org.traccar.helper.Log;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.InvalidPropertiesFormatException;
+import java.util.Objects;
 import java.util.Properties;
 
+@Singleton
 public class Config {
 
     private final Properties properties = new Properties();
@@ -32,7 +38,8 @@ public class Config {
     public Config() {
     }
 
-    public Config(String file) throws IOException {
+    @Inject
+    public Config(@Named("configFile") String file) throws IOException {
         try {
             Properties mainProperties = new Properties();
             try (InputStream inputStream = new FileInputStream(file)) {
@@ -50,8 +57,14 @@ public class Config {
 
             useEnvironmentVariables = Boolean.parseBoolean(System.getenv("CONFIG_USE_ENVIRONMENT_VARIABLES"))
                     || Boolean.parseBoolean(properties.getProperty("config.useEnvironmentVariables"));
+
+            Log.setupLogger(this);
         } catch (InvalidPropertiesFormatException e) {
+            Log.setupDefaultLogger();
             throw new RuntimeException("Configuration file is not a valid XML document", e);
+        } catch (Exception e) {
+            Log.setupDefaultLogger();
+            throw e;
         }
     }
 
@@ -59,8 +72,7 @@ public class Config {
         return hasKey(key.getKey());
     }
 
-    @Deprecated
-    public boolean hasKey(String key) {
+    private boolean hasKey(String key) {
         return useEnvironmentVariables && System.getenv().containsKey(getEnvironmentVariableName(key))
                 || properties.containsKey(key);
     }
@@ -90,12 +102,7 @@ public class Config {
     }
 
     public boolean getBoolean(ConfigKey<Boolean> key) {
-        return getBoolean(key.getKey());
-    }
-
-    @Deprecated
-    public boolean getBoolean(String key) {
-        return Boolean.parseBoolean(getString(key));
+        return Boolean.parseBoolean(getString(key.getKey()));
     }
 
     public int getInteger(ConfigKey<Integer> key) {
@@ -104,11 +111,7 @@ public class Config {
             return Integer.parseInt(value);
         } else {
             Integer defaultValue = key.getDefaultValue();
-            if (defaultValue != null) {
-                return defaultValue;
-            } else {
-                return 0;
-            }
+            return Objects.requireNonNullElse(defaultValue, 0);
         }
     }
 
@@ -127,11 +130,7 @@ public class Config {
             return Long.parseLong(value);
         } else {
             Long defaultValue = key.getDefaultValue();
-            if (defaultValue != null) {
-                return defaultValue;
-            } else {
-                return 0;
-            }
+            return Objects.requireNonNullElse(defaultValue, 0L);
         }
     }
 
@@ -141,11 +140,7 @@ public class Config {
             return Double.parseDouble(value);
         } else {
             Double defaultValue = key.getDefaultValue();
-            if (defaultValue != null) {
-                return defaultValue;
-            } else {
-                return 0;
-            }
+            return Objects.requireNonNullElse(defaultValue, 0.0);
         }
     }
 
diff --git a/src/main/java/org/traccar/config/ConfigKey.java b/src/main/java/org/traccar/config/ConfigKey.java
index c046a46a5..b8151392c 100644
--- a/src/main/java/org/traccar/config/ConfigKey.java
+++ b/src/main/java/org/traccar/config/ConfigKey.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2019 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2019 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,30 +15,34 @@
  */
 package org.traccar.config;
 
+import java.util.HashSet;
 import java.util.List;
+import java.util.Set;
 
-public class ConfigKey<T> {
+public abstract class ConfigKey<T> {
 
     private final String key;
-    private final List<KeyType> types;
+    private final Set<KeyType> types = new HashSet<>();
+    private final Class<T> valueClass;
     private final T defaultValue;
 
-    ConfigKey(String key, List<KeyType> types) {
-        this(key, types, null);
-    }
-
-    ConfigKey(String key, List<KeyType> types, T defaultValue) {
+    ConfigKey(String key, List<KeyType> types, Class<T> valueClass, T defaultValue) {
         this.key = key;
-        this.types = types;
+        this.types.addAll(types);
+        this.valueClass = valueClass;
         this.defaultValue = defaultValue;
     }
 
-    String getKey() {
+    public String getKey() {
         return key;
     }
 
-    public List<KeyType> getTypes() {
-        return types;
+    public boolean hasType(KeyType type) {
+        return types.contains(type);
+    }
+
+    public Class<T> getValueClass() {
+        return valueClass;
     }
 
     public T getDefaultValue() {
@@ -46,3 +50,48 @@ public class ConfigKey<T> {
     }
 
 }
+
+class StringConfigKey extends ConfigKey<String> {
+    StringConfigKey(String key, List<KeyType> types) {
+        super(key, types, String.class, null);
+    }
+    StringConfigKey(String key, List<KeyType> types, String defaultValue) {
+        super(key, types, String.class, defaultValue);
+    }
+}
+
+class BooleanConfigKey extends ConfigKey<Boolean> {
+    BooleanConfigKey(String key, List<KeyType> types) {
+        super(key, types, Boolean.class, null);
+    }
+    BooleanConfigKey(String key, List<KeyType> types, Boolean defaultValue) {
+        super(key, types, Boolean.class, defaultValue);
+    }
+}
+
+class IntegerConfigKey extends ConfigKey<Integer> {
+    IntegerConfigKey(String key, List<KeyType> types) {
+        super(key, types, Integer.class, null);
+    }
+    IntegerConfigKey(String key, List<KeyType> types, Integer defaultValue) {
+        super(key, types, Integer.class, defaultValue);
+    }
+}
+
+class LongConfigKey extends ConfigKey<Long> {
+    LongConfigKey(String key, List<KeyType> types) {
+        super(key, types, Long.class, null);
+    }
+    LongConfigKey(String key, List<KeyType> types, Long defaultValue) {
+        super(key, types, Long.class, defaultValue);
+    }
+}
+
+class DoubleConfigKey extends ConfigKey<Double> {
+    DoubleConfigKey(String key, List<KeyType> types) {
+        super(key, types, Double.class, null);
+    }
+    DoubleConfigKey(String key, List<KeyType> types, Double defaultValue) {
+        super(key, types, Double.class, defaultValue);
+    }
+}
diff --git a/src/main/java/org/traccar/config/ConfigSuffix.java b/src/main/java/org/traccar/config/ConfigSuffix.java
index ede4c107d..aac3219c6 100644
--- a/src/main/java/org/traccar/config/ConfigSuffix.java
+++ b/src/main/java/org/traccar/config/ConfigSuffix.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2019 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2019 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,15 +17,11 @@ package org.traccar.config;
 
 import java.util.List;
 
-public class ConfigSuffix<T> {
+public abstract class ConfigSuffix<T> {
 
-    private final String keySuffix;
-    private final List<KeyType> types;
-    private final T defaultValue;
-
-    ConfigSuffix(String keySuffix, List<KeyType> types) {
-        this(keySuffix, types,  null);
-    }
+    protected final String keySuffix;
+    protected final List<KeyType> types;
+    protected final T defaultValue;
 
     ConfigSuffix(String keySuffix, List<KeyType> types, T defaultValue) {
         this.keySuffix = keySuffix;
@@ -33,8 +29,71 @@ public class ConfigSuffix<T> {
         this.defaultValue = defaultValue;
     }
 
-    public ConfigKey<T> withPrefix(String prefix) {
-        return new ConfigKey<>(prefix + keySuffix, types, defaultValue);
+    public abstract ConfigKey<T> withPrefix(String prefix);
+
+}
+
+class StringConfigSuffix extends ConfigSuffix<String> {
+    StringConfigSuffix(String key, List<KeyType> types) {
+        super(key, types, null);
+    }
+    StringConfigSuffix(String key, List<KeyType> types, String defaultValue) {
+        super(key, types, defaultValue);
+    }
+    @Override
+    public ConfigKey<String> withPrefix(String prefix) {
+        return new StringConfigKey(prefix + keySuffix, types, defaultValue);
+    }
+}
+
+class BooleanConfigSuffix extends ConfigSuffix<Boolean> {
+    BooleanConfigSuffix(String key, List<KeyType> types) {
+        super(key, types, null);
+    }
+    BooleanConfigSuffix(String key, List<KeyType> types, Boolean defaultValue) {
+        super(key, types, defaultValue);
+    }
+    @Override
+    public ConfigKey<Boolean> withPrefix(String prefix) {
+        return new BooleanConfigKey(prefix + keySuffix, types, defaultValue);
+    }
+}
+
+class IntegerConfigSuffix extends ConfigSuffix<Integer> {
+    IntegerConfigSuffix(String key, List<KeyType> types) {
+        super(key, types, null);
+    }
+    IntegerConfigSuffix(String key, List<KeyType> types, Integer defaultValue) {
+        super(key, types, defaultValue);
+    }
+    @Override
+    public ConfigKey<Integer> withPrefix(String prefix) {
+        return new IntegerConfigKey(prefix + keySuffix, types, defaultValue);
     }
+}
 
+class LongConfigSuffix extends ConfigSuffix<Long> {
+    LongConfigSuffix(String key, List<KeyType> types) {
+        super(key, types, null);
+    }
+    LongConfigSuffix(String key, List<KeyType> types, Long defaultValue) {
+        super(key, types, defaultValue);
+    }
+    @Override
+    public ConfigKey<Long> withPrefix(String prefix) {
+        return new LongConfigKey(prefix + keySuffix, types, defaultValue);
+    }
+}
+
+class DoubleConfigSuffix extends ConfigSuffix<Double> {
+    DoubleConfigSuffix(String key, List<KeyType> types) {
+        super(key, types, null);
+    }
+    DoubleConfigSuffix(String key, List<KeyType> types, Double defaultValue) {
+        super(key, types, defaultValue);
+    }
+    @Override
+    public ConfigKey<Double> withPrefix(String prefix) {
+        return new DoubleConfigKey(prefix + keySuffix, types, defaultValue);
+    }
 }
diff --git a/src/main/java/org/traccar/config/KeyType.java b/src/main/java/org/traccar/config/KeyType.java
index 57a95c9ec..46628f9fc 100644
--- a/src/main/java/org/traccar/config/KeyType.java
+++ b/src/main/java/org/traccar/config/KeyType.java
@@ -16,7 +16,7 @@
 package org.traccar.config;
 
 public enum KeyType {
-    GLOBAL,
+    CONFIG,
     SERVER,
     USER,
     DEVICE,
diff --git a/src/main/java/org/traccar/config/Keys.java b/src/main/java/org/traccar/config/Keys.java
index ccfe4bee7..27f5f0921 100644
--- a/src/main/java/org/traccar/config/Keys.java
+++ b/src/main/java/org/traccar/config/Keys.java
@@ -15,7 +15,7 @@
  */
 package org.traccar.config;
 
-import java.util.Collections;
+import java.util.List;
 
 public final class Keys {
 
@@ -25,39 +25,39 @@ public final class Keys {
     /**
      * Network interface for a the protocol. If not specified, server will bind all interfaces.
      */
-    public static final ConfigSuffix<String> PROTOCOL_ADDRESS = new ConfigSuffix<>(
+    public static final ConfigSuffix<String> PROTOCOL_ADDRESS = new StringConfigSuffix(
             ".address",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Port number for the protocol. Most protocols use TCP on the transport layer. Some protocols use UDP. Some
      * support both TCP and UDP.
      */
-    public static final ConfigSuffix<Integer> PROTOCOL_PORT = new ConfigSuffix<>(
+    public static final ConfigSuffix<Integer> PROTOCOL_PORT = new IntegerConfigSuffix(
             ".port",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * List of devices for polling protocols. List should contain unique ids separated by commas. Used only for polling
      * protocols.
      */
-    public static final ConfigSuffix<String> PROTOCOL_DEVICES = new ConfigSuffix<>(
+    public static final ConfigSuffix<String> PROTOCOL_DEVICES = new StringConfigSuffix(
             ".devices",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Polling interval in seconds. Used only for polling protocols.
      */
-    public static final ConfigSuffix<Long> PROTOCOL_INTERVAL = new ConfigSuffix<>(
+    public static final ConfigSuffix<Long> PROTOCOL_INTERVAL = new LongConfigSuffix(
             ".interval",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Enable SSL support for the protocol. Not all protocols support this.
      */
-    public static final ConfigSuffix<Boolean> PROTOCOL_SSL = new ConfigSuffix<>(
+    public static final ConfigSuffix<Boolean> PROTOCOL_SSL = new BooleanConfigSuffix(
             ".ssl",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Connection timeout value in seconds. Because sometimes there is no way to detect lost TCP connection old
@@ -65,574 +65,823 @@ public final class Keys {
      * problems with establishing new connections when number of devices is high or devices data connections are
      * unstable.
      */
-    public static final ConfigSuffix<Integer> PROTOCOL_TIMEOUT = new ConfigSuffix<>(
+    public static final ConfigSuffix<Integer> PROTOCOL_TIMEOUT = new IntegerConfigSuffix(
             ".timeout",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Device password. Commonly used in some protocol for sending commands.
      */
-    public static final ConfigSuffix<String> PROTOCOL_DEVICE_PASSWORD = new ConfigSuffix<>(
+    public static final ConfigKey<String> DEVICE_PASSWORD = new StringConfigKey(
+            "devicePassword",
+            List.of(KeyType.DEVICE));
+
+    /**
+     * Device password. Commonly used in some protocol for sending commands.
+     */
+    public static final ConfigSuffix<String> PROTOCOL_DEVICE_PASSWORD = new StringConfigSuffix(
             ".devicePassword",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Default protocol mask to use. Currently used only by Skypatrol protocol.
      */
-    public static final ConfigSuffix<Integer> PROTOCOL_MASK = new ConfigSuffix<>(
+    public static final ConfigSuffix<Integer> PROTOCOL_MASK = new IntegerConfigSuffix(
             ".mask",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Custom message length. Currently used only by H2 protocol for specifying binary message length.
      */
-    public static final ConfigSuffix<Integer> PROTOCOL_MESSAGE_LENGTH = new ConfigSuffix<>(
+    public static final ConfigSuffix<Integer> PROTOCOL_MESSAGE_LENGTH = new IntegerConfigSuffix(
             ".messageLength",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Enable extended functionality for the protocol. The reason it's disabled by default is that not all devices
      * support it.
      */
-    public static final ConfigSuffix<Boolean> PROTOCOL_EXTENDED = new ConfigSuffix<>(
+    public static final ConfigSuffix<Boolean> PROTOCOL_EXTENDED = new BooleanConfigSuffix(
             ".extended",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Decode string as UTF8 instead of ASCII. Only applicable for some protocols.
      */
-    public static final ConfigSuffix<Boolean> PROTOCOL_UTF8 = new ConfigSuffix<>(
+    public static final ConfigSuffix<Boolean> PROTOCOL_UTF8 = new BooleanConfigSuffix(
             ".utf8",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Enable CAN decoding for the protocol. Similar to 'extended' configuration, it's not supported for some devices.
      */
-    public static final ConfigSuffix<Boolean> PROTOCOL_CAN = new ConfigSuffix<>(
+    public static final ConfigSuffix<Boolean> PROTOCOL_CAN = new BooleanConfigSuffix(
             ".can",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Indicates whether server acknowledgement is required. Only applicable for some protocols.
      */
-    public static final ConfigSuffix<Boolean> PROTOCOL_ACK = new ConfigSuffix<>(
+    public static final ConfigSuffix<Boolean> PROTOCOL_ACK = new BooleanConfigSuffix(
             ".ack",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG, KeyType.DEVICE),
+            false);
 
     /**
      * Ignore device reported fix time. Useful in case some devices report invalid time. Currently only available for
      * GL200 protocol.
      */
-    public static final ConfigSuffix<Boolean> PROTOCOL_IGNORE_FIX_TIME = new ConfigSuffix<>(
+    public static final ConfigSuffix<Boolean> PROTOCOL_IGNORE_FIX_TIME = new BooleanConfigSuffix(
             ".ignoreFixTime",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Decode additional TK103 attributes. Not supported for some devices.
      */
-    public static final ConfigSuffix<Boolean> PROTOCOL_DECODE_LOW = new ConfigSuffix<>(
+    public static final ConfigSuffix<Boolean> PROTOCOL_DECODE_LOW = new BooleanConfigSuffix(
             ".decodeLow",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Use long date format for Atrack protocol.
      */
-    public static final ConfigSuffix<Boolean> PROTOCOL_LONG_DATE = new ConfigSuffix<>(
+    public static final ConfigSuffix<Boolean> PROTOCOL_LONG_DATE = new BooleanConfigSuffix(
             ".longDate",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Use decimal fuel value format for Atrack protocol.
      */
-    public static final ConfigSuffix<Boolean> PROTOCOL_DECIMAL_FUEL = new ConfigSuffix<>(
+    public static final ConfigSuffix<Boolean> PROTOCOL_DECIMAL_FUEL = new BooleanConfigSuffix(
             ".decimalFuel",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Indicates additional custom attributes for Atrack protocol.
      */
-    public static final ConfigSuffix<Boolean> PROTOCOL_CUSTOM = new ConfigSuffix<>(
+    public static final ConfigSuffix<Boolean> PROTOCOL_CUSTOM = new BooleanConfigSuffix(
             ".custom",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Custom format string for Atrack protocol.
      */
-    public static final ConfigSuffix<String> PROTOCOL_FORM = new ConfigSuffix<>(
+    public static final ConfigSuffix<String> PROTOCOL_FORM = new StringConfigSuffix(
             ".form",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Protocol configuration. Required for some devices for decoding incoming data.
      */
-    public static final ConfigSuffix<String> PROTOCOL_CONFIG = new ConfigSuffix<>(
+    public static final ConfigSuffix<String> PROTOCOL_CONFIG = new StringConfigSuffix(
             ".config",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Alarm mapping for Atrack protocol.
      */
-    public static final ConfigSuffix<String> PROTOCOL_ALARM_MAP = new ConfigSuffix<>(
+    public static final ConfigSuffix<String> PROTOCOL_ALARM_MAP = new StringConfigSuffix(
             ".alarmMap",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Indicates whether TAIP protocol should have prefixes for messages.
      */
-    public static final ConfigSuffix<Boolean> PROTOCOL_PREFIX = new ConfigSuffix<>(
+    public static final ConfigSuffix<Boolean> PROTOCOL_PREFIX = new BooleanConfigSuffix(
             ".prefix",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Some devices require server address confirmation. Use this parameter to configure correct public address.
      */
-    public static final ConfigSuffix<String> PROTOCOL_SERVER = new ConfigSuffix<>(
+    public static final ConfigSuffix<String> PROTOCOL_SERVER = new StringConfigSuffix(
             ".server",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
-     * Skip device connection session cache. Per protocol configuration.
+     * Protocol type for Suntech.
      */
-    public static final ConfigSuffix<Boolean> PROTOCOL_IGNORE_SESSIONS_CACHE = new ConfigSuffix<>(
-            ".ignoreSessionCache",
-            Collections.singletonList(KeyType.GLOBAL));
+    public static final ConfigKey<Integer> PROTOCOL_TYPE = new IntegerConfigKey(
+            "suntech.protocolType",
+            List.of(KeyType.CONFIG, KeyType.DEVICE));
+
+    /**
+     * Suntech HBM configuration value.
+     */
+    public static final ConfigKey<Boolean> PROTOCOL_HBM = new BooleanConfigKey(
+            "suntech.hbm",
+            List.of(KeyType.CONFIG, KeyType.DEVICE));
+
+    /**
+     * Format includes ADC value.
+     */
+    public static final ConfigSuffix<Boolean> PROTOCOL_INCLUDE_ADC = new BooleanConfigSuffix(
+            ".includeAdc",
+            List.of(KeyType.CONFIG, KeyType.DEVICE));
+
+    /**
+     * Format includes RPM value.
+     */
+    public static final ConfigSuffix<Boolean> PROTOCOL_INCLUDE_RPM = new BooleanConfigSuffix(
+            ".includeRpm",
+            List.of(KeyType.CONFIG, KeyType.DEVICE));
+
+    /**
+     * Format includes temperature values.
+     */
+    public static final ConfigSuffix<Boolean> PROTOCOL_INCLUDE_TEMPERATURE = new BooleanConfigSuffix(
+            ".includeTemp",
+            List.of(KeyType.CONFIG, KeyType.DEVICE));
+
+    /**
+     * Disable commands for the protocol. Not all protocols support this option.
+     */
+    public static final ConfigSuffix<Boolean> PROTOCOL_DISABLE_COMMANDS = new BooleanConfigSuffix(
+            ".disableCommands",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Protocol format. Used by protocols that have configurable message format.
+     */
+    public static final ConfigSuffix<String> PROTOCOL_FORMAT = new StringConfigSuffix(
+            ".format",
+            List.of(KeyType.CONFIG, KeyType.DEVICE));
+
+    /**
+     * Protocol date format. Used by protocols that have configurable date format.
+     */
+    public static final ConfigSuffix<String> PROTOCOL_DATE_FORMAT = new StringConfigSuffix(
+            ".dateFormat",
+            List.of(KeyType.DEVICE));
+
+    /**
+     * Device time zone. Most devices report UTC time, but in some cases devices report local time, so this parameter
+     * needs to be configured for the server to be able to decode the time correctly.
+     */
+    public static final ConfigKey<String> DECODER_TIMEZONE = new StringConfigKey(
+            "decoder.timezone",
+            List.of(KeyType.CONFIG, KeyType.DEVICE));
 
     /**
      * ORBCOMM API access id.
      */
-    public static final ConfigKey<String> ORBCOMM_ACCESS_ID = new ConfigKey<>(
+    public static final ConfigKey<String> ORBCOMM_ACCESS_ID = new StringConfigKey(
             "orbcomm.accessId",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * ORBCOMM API password.
      */
-    public static final ConfigKey<String> ORBCOMM_PASSWORD = new ConfigKey<>(
+    public static final ConfigKey<String> ORBCOMM_PASSWORD = new StringConfigKey(
             "orbcomm.password",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
-     * Skip device connection session cache. Global configuration.
+     * Use alternative format for the protocol of commands.
      */
-    public static final ConfigKey<Boolean> DECODER_IGNORE_SESSIONS_CACHE = new ConfigKey<>(
-            "decoder.ignoreSessionCache",
-            Collections.singletonList(KeyType.GLOBAL));
+    public static final ConfigSuffix<Boolean> PROTOCOL_ALTERNATIVE = new BooleanConfigSuffix(
+            ".alternative",
+            List.of(KeyType.CONFIG, KeyType.DEVICE),
+            false);
+
+    /**
+     * Protocol format includes a language field.
+     */
+    public static final ConfigSuffix<Boolean> PROTOCOL_LANGUAGE = new BooleanConfigSuffix(
+            ".language",
+            List.of(KeyType.CONFIG, KeyType.DEVICE),
+            false);
 
     /**
      * Server wide connection timeout value in seconds. See protocol timeout for more information.
      */
-    public static final ConfigKey<Integer> SERVER_TIMEOUT = new ConfigKey<>(
+    public static final ConfigKey<Integer> SERVER_TIMEOUT = new IntegerConfigKey(
             "server.timeout",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Send device responses immediately before writing it in the database.
+     */
+    public static final ConfigKey<Boolean> SERVER_INSTANT_ACKNOWLEDGEMENT = new BooleanConfigKey(
+            "server.instantAcknowledgement",
+            List.of(KeyType.CONFIG));
 
     /**
      * Address for uploading aggregated anonymous usage statistics. Uploaded information is the same you can see on the
      * statistics screen in the web app. It does not include any sensitive (e.g. locations).
      */
-    public static final ConfigKey<String> SERVER_STATISTICS = new ConfigKey<>(
+    public static final ConfigKey<String> SERVER_STATISTICS = new StringConfigKey(
             "server.statistics",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Fuel drop threshold value. When fuel level drops from one position to another for more the value, an event is
+     * generated.
+     */
+    public static final ConfigKey<Double> EVENT_FUEL_DROP_THRESHOLD = new DoubleConfigKey(
+            "fuelDropThreshold",
+            List.of(KeyType.SERVER, KeyType.DEVICE),
+            0.0);
+
+    /**
+     * Fuel increase threshold value. When fuel level increases from one position to another for more the value, an
+     * event is generated.
+     */
+    public static final ConfigKey<Double> EVENT_FUEL_INCREASE_THRESHOLD = new DoubleConfigKey(
+            "fuelIncreaseThreshold",
+            List.of(KeyType.SERVER, KeyType.DEVICE),
+            0.0);
+
+    /**
+     * Speed limit value in knots.
+     */
+    public static final ConfigKey<Double> EVENT_OVERSPEED_LIMIT = new DoubleConfigKey(
+            "speedLimit",
+            List.of(KeyType.SERVER, KeyType.DEVICE),
+            0.0);
 
     /**
-     * If true, the event is generated once at the beginning of overspeeding period.
+     * Speed limit threshold multiplier. For example, if the speed limit is 100, but we only want to generate an event
+     * if the speed is higher than 105, this parameter can be set to 1.05. Default multiplier is 1.0.
      */
-    public static final ConfigKey<Boolean> EVENT_OVERSPEED_NOT_REPEAT = new ConfigKey<>(
-            "event.overspeed.notRepeat",
-            Collections.singletonList(KeyType.GLOBAL));
+    public static final ConfigKey<Double> EVENT_OVERSPEED_THRESHOLD_MULTIPLIER = new DoubleConfigKey(
+            "event.overspeed.thresholdMultiplier",
+            List.of(KeyType.CONFIG),
+            1.0);
 
     /**
      * Minimal over speed duration to trigger the event. Value in seconds.
      */
-    public static final ConfigKey<Long> EVENT_OVERSPEED_MINIMAL_DURATION = new ConfigKey<>(
+    public static final ConfigKey<Long> EVENT_OVERSPEED_MINIMAL_DURATION = new LongConfigKey(
             "event.overspeed.minimalDuration",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Relevant only for geofence speed limits. Use the lowest speed limit from all geofences.
      */
-    public static final ConfigKey<Boolean> EVENT_OVERSPEED_PREFER_LOWEST = new ConfigKey<>(
+    public static final ConfigKey<Boolean> EVENT_OVERSPEED_PREFER_LOWEST = new BooleanConfigKey(
             "event.overspeed.preferLowest",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Driver behavior acceleration threshold. Value is in meter per second squared.
      */
-    public static final ConfigKey<Double> EVENT_BEHAVIOR_ACCELERATION_THRESHOLD = new ConfigKey<>(
+    public static final ConfigKey<Double> EVENT_BEHAVIOR_ACCELERATION_THRESHOLD = new DoubleConfigKey(
             "event.behavior.accelerationThreshold",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Driver behavior braking threshold. Value is in meter per second squared.
      */
-    public static final ConfigKey<Double> EVENT_BEHAVIOR_BRAKING_THRESHOLD = new ConfigKey<>(
+    public static final ConfigKey<Double> EVENT_BEHAVIOR_BRAKING_THRESHOLD = new DoubleConfigKey(
             "event.behavior.brakingThreshold",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Do not generate alert event if same alert was present in last known location.
      */
-    public static final ConfigKey<Boolean> EVENT_IGNORE_DUPLICATE_ALERTS = new ConfigKey<>(
+    public static final ConfigKey<Boolean> EVENT_IGNORE_DUPLICATE_ALERTS = new BooleanConfigKey(
             "event.ignoreDuplicateAlerts",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * If set to true, invalid positions will be considered for motion logic.
      */
-    public static final ConfigKey<Boolean> EVENT_MOTION_PROCESS_INVALID_POSITIONS = new ConfigKey<>(
+    public static final ConfigKey<Boolean> EVENT_MOTION_PROCESS_INVALID_POSITIONS = new BooleanConfigKey(
             "event.motion.processInvalidPositions",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG, KeyType.DEVICE),
+            false);
 
     /**
      * If the speed is above specified value, the object is considered to be in motion. Default value is 0.01 knots.
      */
-    public static final ConfigKey<Double> EVENT_MOTION_SPEED_THRESHOLD = new ConfigKey<>(
+    public static final ConfigKey<Double> EVENT_MOTION_SPEED_THRESHOLD = new DoubleConfigKey(
             "event.motion.speedThreshold",
-            Collections.singletonList(KeyType.GLOBAL),
+            List.of(KeyType.CONFIG, KeyType.DEVICE),
             0.01);
 
     /**
      * Global polyline geofence distance. Within that distance from the polyline, point is considered within the
      * geofence. Each individual geofence can also has 'polylineDistance' attribute which will take precedence.
      */
-    public static final ConfigKey<Double> GEOFENCE_POLYLINE_DISTANCE = new ConfigKey<>(
+    public static final ConfigKey<Double> GEOFENCE_POLYLINE_DISTANCE = new DoubleConfigKey(
             "geofence.polylineDistance",
-            Collections.singletonList(KeyType.GLOBAL),
+            List.of(KeyType.CONFIG),
             25.0);
 
     /**
+     * Enable in-memory database instead of an SQL database.
+     */
+    public static final ConfigKey<Boolean> DATABASE_MEMORY = new BooleanConfigKey(
+            "database.memory",
+            List.of(KeyType.CONFIG));
+
+    /**
      * Path to the database driver JAR file. Traccar includes drivers for MySQL, PostgreSQL and H2 databases. If you use
      * one of those, you don't need to specify this parameter.
      */
-    public static final ConfigKey<String> DATABASE_DRIVER_FILE = new ConfigKey<>(
+    public static final ConfigKey<String> DATABASE_DRIVER_FILE = new StringConfigKey(
             "database.driverFile",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Database driver Java class. For H2 use 'org.h2.Driver'. MySQL driver class name is 'com.mysql.jdbc.Driver'.
      */
-    public static final ConfigKey<String> DATABASE_DRIVER = new ConfigKey<>(
+    public static final ConfigKey<String> DATABASE_DRIVER = new StringConfigKey(
             "database.driver",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Database connection URL. By default Traccar uses H2 database.
      */
-    public static final ConfigKey<String> DATABASE_URL = new ConfigKey<>(
+    public static final ConfigKey<String> DATABASE_URL = new StringConfigKey(
             "database.url",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Database user name. Default administrator user for H2 database is 'sa'.
      */
-    public static final ConfigKey<String> DATABASE_USER = new ConfigKey<>(
+    public static final ConfigKey<String> DATABASE_USER = new StringConfigKey(
             "database.user",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Database user password. Default password for H2 admin (sa) user is empty.
      */
-    public static final ConfigKey<String> DATABASE_PASSWORD = new ConfigKey<>(
+    public static final ConfigKey<String> DATABASE_PASSWORD = new StringConfigKey(
             "database.password",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Path to Liquibase master changelog file.
      */
-    public static final ConfigKey<String> DATABASE_CHANGELOG = new ConfigKey<>(
+    public static final ConfigKey<String> DATABASE_CHANGELOG = new StringConfigKey(
             "database.changelog",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Database connection pool size. Default value is defined by the HikariCP library.
      */
-    public static final ConfigKey<Integer> DATABASE_MAX_POOL_SIZE = new ConfigKey<>(
+    public static final ConfigKey<Integer> DATABASE_MAX_POOL_SIZE = new IntegerConfigKey(
             "database.maxPoolSize",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * SQL query to check connection status. Default value is 'SELECT 1'. For Oracle database you can use
      * 'SELECT 1 FROM DUAL'.
      */
-    public static final ConfigKey<String> DATABASE_CHECK_CONNECTION = new ConfigKey<>(
+    public static final ConfigKey<String> DATABASE_CHECK_CONNECTION = new StringConfigKey(
             "database.checkConnection",
-            Collections.singletonList(KeyType.GLOBAL),
+            List.of(KeyType.CONFIG),
             "SELECT 1");
 
     /**
      * Store original HEX or string data as "raw" attribute in the corresponding position.
      */
-    public static final ConfigKey<Boolean> DATABASE_SAVE_ORIGINAL = new ConfigKey<>(
+    public static final ConfigKey<Boolean> DATABASE_SAVE_ORIGINAL = new BooleanConfigKey(
             "database.saveOriginal",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
-     * By default server syncs with the database if it encounters and unknown device. This flag allows to disable that
+     * Throttle unknown device database queries when it sends repeated requests.
+     */
+    public static final ConfigKey<Boolean> DATABASE_THROTTLE_UNKNOWN = new BooleanConfigKey(
+            "database.throttleUnknown",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * By default, server syncs with the database if it encounters and unknown device. This flag allows to disable that
      * behavior to improve performance in some cases.
      */
-    public static final ConfigKey<Boolean> DATABASE_IGNORE_UNKNOWN = new ConfigKey<>(
+    public static final ConfigKey<Boolean> DATABASE_IGNORE_UNKNOWN = new BooleanConfigKey(
             "database.ignoreUnknown",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Automatically register unknown devices in the database.
      */
-    public static final ConfigKey<Boolean> DATABASE_REGISTER_UNKNOWN = new ConfigKey<>(
+    public static final ConfigKey<Boolean> DATABASE_REGISTER_UNKNOWN = new BooleanConfigKey(
             "database.registerUnknown",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Default category for auto-registered devices.
      */
-    public static final ConfigKey<String> DATABASE_REGISTER_UNKNOWN_DEFAULT_CATEGORY = new ConfigKey<>(
+    public static final ConfigKey<String> DATABASE_REGISTER_UNKNOWN_DEFAULT_CATEGORY = new StringConfigKey(
             "database.registerUnknown.defaultCategory",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * The group id assigned to auto-registered devices.
      */
-    public static final ConfigKey<Long> DATABASE_REGISTER_UNKNOWN_DEFAULT_GROUP_ID = new ConfigKey<>(
+    public static final ConfigKey<Long> DATABASE_REGISTER_UNKNOWN_DEFAULT_GROUP_ID = new LongConfigKey(
             "database.registerUnknown.defaultGroupId",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
-     * Minimum device refresh timeout in seconds. Default timeout is 5 minutes.
+     * Automatically register unknown devices with regex filter.
      */
-    public static final ConfigKey<Long> DATABASE_REFRESH_DELAY = new ConfigKey<>(
-            "database.refreshDelay",
-            Collections.singletonList(KeyType.GLOBAL),
-            300L);
+    public static final ConfigKey<String> DATABASE_REGISTER_UNKNOWN_REGEX = new StringConfigKey(
+            "database.registerUnknown.regex",
+            List.of(KeyType.CONFIG), "\\w{3,15}");
 
     /**
      * Store empty messages as positions. For example, heartbeats.
      */
-    public static final ConfigKey<Boolean> DATABASE_SAVE_EMPTY = new ConfigKey<>(
+    public static final ConfigKey<Boolean> DATABASE_SAVE_EMPTY = new BooleanConfigKey(
             "database.saveEmpty",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Device limit for self registered users. Default value is -1, which indicates no limit.
      */
-    public static final ConfigKey<Integer> USERS_DEFAULT_DEVICE_LIMIT = new ConfigKey<>(
+    public static final ConfigKey<Integer> USERS_DEFAULT_DEVICE_LIMIT = new IntegerConfigKey(
             "users.defaultDeviceLimit",
-            Collections.singletonList(KeyType.GLOBAL),
+            List.of(KeyType.CONFIG),
             -1);
 
     /**
      * Default user expiration for self registered users. Value is in days. By default no expiration is set.
      */
-    public static final ConfigKey<Integer> USERS_DEFAULT_EXPIRATION_DAYS = new ConfigKey<>(
+    public static final ConfigKey<Integer> USERS_DEFAULT_EXPIRATION_DAYS = new IntegerConfigKey(
             "users.defaultExpirationDays",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
-     * LDAP server URL.
+     * LDAP server URL. For more info check <a href="https://www.traccar.org/ldap/">LDAP config</a>.
      */
-    public static final ConfigKey<String> LDAP_URL = new ConfigKey<>(
+    public static final ConfigKey<String> LDAP_URL = new StringConfigKey(
             "ldap.url",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * LDAP server login.
      */
-    public static final ConfigKey<String> LDAP_USER = new ConfigKey<>(
+    public static final ConfigKey<String> LDAP_USER = new StringConfigKey(
             "ldap.user",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * LDAP server password.
      */
-    public static final ConfigKey<String> LDAP_PASSWORD = new ConfigKey<>(
+    public static final ConfigKey<String> LDAP_PASSWORD = new StringConfigKey(
             "ldap.password",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Force LDAP authentication.
      */
-    public static final ConfigKey<Boolean> LDAP_FORCE = new ConfigKey<>(
+    public static final ConfigKey<Boolean> LDAP_FORCE = new BooleanConfigKey(
             "ldap.force",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * LDAP user search base.
      */
-    public static final ConfigKey<String> LDAP_BASE = new ConfigKey<>(
+    public static final ConfigKey<String> LDAP_BASE = new StringConfigKey(
             "ldap.base",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * LDAP attribute used as user id. Default value is 'uid'.
      */
-    public static final ConfigKey<String> LDAP_ID_ATTRIBUTE = new ConfigKey<>(
+    public static final ConfigKey<String> LDAP_ID_ATTRIBUTE = new StringConfigKey(
             "ldap.idAttribute",
-            Collections.singletonList(KeyType.GLOBAL),
+            List.of(KeyType.CONFIG),
             "uid");
 
     /**
      * LDAP attribute used as user name. Default value is 'cn'.
      */
-    public static final ConfigKey<String> LDAP_NAME_ATTRIBUTE = new ConfigKey<>(
+    public static final ConfigKey<String> LDAP_NAME_ATTRIBUTE = new StringConfigKey(
             "ldap.nameAttribute",
-            Collections.singletonList(KeyType.GLOBAL),
+            List.of(KeyType.CONFIG),
             "cn");
 
     /**
      * LDAP attribute used as user email. Default value is 'mail'.
      */
-    public static final ConfigKey<String> LDAP_MAIN_ATTRIBUTE = new ConfigKey<>(
+    public static final ConfigKey<String> LDAP_MAIN_ATTRIBUTE = new StringConfigKey(
             "ldap.mailAttribute",
-            Collections.singletonList(KeyType.GLOBAL),
+            List.of(KeyType.CONFIG),
             "mail");
 
     /**
      * LDAP custom search filter. If not specified, '({idAttribute}=:login)' will be used as a filter.
      */
-    public static final ConfigKey<String> LDAP_SEARCH_FILTER = new ConfigKey<>(
+    public static final ConfigKey<String> LDAP_SEARCH_FILTER = new StringConfigKey(
             "ldap.searchFilter",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * LDAP custom admin search filter.
      */
-    public static final ConfigKey<String> LDAP_ADMIN_FILTER = new ConfigKey<>(
+    public static final ConfigKey<String> LDAP_ADMIN_FILTER = new StringConfigKey(
             "ldap.adminFilter",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * LDAP admin user group. Used if custom admin filter is not specified.
      */
-    public static final ConfigKey<String> LDAP_ADMIN_GROUP = new ConfigKey<>(
+    public static final ConfigKey<String> LDAP_ADMIN_GROUP = new StringConfigKey(
             "ldap.adminGroup",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Force OpenID Connect authentication. When enabled, the Traccar login page will be skipped
+     * and users are redirected to the OpenID Connect provider.
+     */
+    public static final ConfigKey<Boolean> OPENID_FORCE = new BooleanConfigKey(
+            "openid.force",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * OpenID Connect Client ID.
+     * This is a unique ID assigned to each application you register with your identity provider.
+     * Required to enable SSO.
+     */
+    public static final ConfigKey<String> OPENID_CLIENT_ID = new StringConfigKey(
+            "openid.clientId",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * OpenID Connect Client Secret.
+     * This is a secret assigned to each application you register with your identity provider.
+     * Required to enable SSO.
+     */
+    public static final ConfigKey<String> OPENID_CLIENT_SECRET = new StringConfigKey(
+            "openid.clientSecret",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * OpenID Connect Issuer (Base) URL.
+     * This is used to automatically configure the authorization, token and user info URLs if provided.
+     */
+    public static final ConfigKey<String> OPENID_ISSUER_URL = new StringConfigKey(
+            "openid.issuerUrl",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * OpenID Connect Authorization URL.
+     * This can usually be found in the documentation of your identity provider or by using the well-known
+     * configuration endpoint, eg. https://auth.example.com//.well-known/openid-configuration
+     * Required to enable SSO if openid.issuerUrl is not set.
+     */
+    public static final ConfigKey<String> OPENID_AUTH_URL = new StringConfigKey(
+            "openid.authUrl",
+            List.of(KeyType.CONFIG));
+    /**
+     * OpenID Connect Token URL.
+     * This can be found in the same ways at openid.authUrl.
+     * Required to enable SSO if openid.issuerUrl is not set.
+     */
+    public static final ConfigKey<String> OPENID_TOKEN_URL = new StringConfigKey(
+            "openid.tokenUrl",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * OpenID Connect User Info URL.
+     * This can be found in the same ways at openid.authUrl.
+     * Required to enable SSO if openid.issuerUrl is not set.
+     */
+    public static final ConfigKey<String> OPENID_USERINFO_URL = new StringConfigKey(
+            "openid.userInfoUrl",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * OpenID Connect group to restrict access to.
+     * If this is not provided, all OpenID users will have access to Traccar.
+     * This option will only work if your OpenID provider supports the groups scope.
+     */
+    public static final ConfigKey<String> OPENID_ALLOW_GROUP = new StringConfigKey(
+        "openid.allowGroup",
+        List.of(KeyType.CONFIG));
+
+    /**
+     * OpenID Connect group to grant admin access.
+     * If this is not provided, no groups will be granted admin access.
+     * This option will only work if your OpenID provider supports the groups scope.
+     */
+    public static final ConfigKey<String> OPENID_ADMIN_GROUP = new StringConfigKey(
+            "openid.adminGroup",
+            List.of(KeyType.CONFIG));
 
     /**
      * If no data is reported by a device for the given amount of time, status changes from online to unknown. Value is
      * in seconds. Default timeout is 10 minutes.
      */
-    public static final ConfigKey<Long> STATUS_TIMEOUT = new ConfigKey<>(
+    public static final ConfigKey<Long> STATUS_TIMEOUT = new LongConfigKey(
             "status.timeout",
-            Collections.singletonList(KeyType.GLOBAL),
+            List.of(KeyType.CONFIG),
             600L);
 
     /**
-     * Force additional state check when device status changes to 'offline' or 'unknown'. Default false.
-     */
-    public static final ConfigKey<Boolean> STATUS_UPDATE_DEVICE_STATE = new ConfigKey<>(
-            "status.updateDeviceState",
-            Collections.singletonList(KeyType.GLOBAL));
-
-    /**
      * List of protocol names to ignore offline status. Can be useful to not trigger status change when devices are
      * configured to disconnect after reporting a batch of data.
      */
-    public static final ConfigKey<String> STATUS_IGNORE_OFFLINE = new ConfigKey<>(
+    public static final ConfigKey<String> STATUS_IGNORE_OFFLINE = new StringConfigKey(
             "status.ignoreOffline",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Path to the media folder. Server stores audio, video and photo files in that folder. Sub-folders will be
      * automatically created for each device by unique id.
      */
-    public static final ConfigKey<String> MEDIA_PATH = new ConfigKey<>(
+    public static final ConfigKey<String> MEDIA_PATH = new StringConfigKey(
             "media.path",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Optional parameter to specify network interface for web interface to bind to. By default server will bind to all
      * available interfaces.
      */
-    public static final ConfigKey<String> WEB_ADDRESS = new ConfigKey<>(
+    public static final ConfigKey<String> WEB_ADDRESS = new StringConfigKey(
             "web.address",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Web interface TCP port number. By default Traccar uses port 8082. To avoid specifying port in the browser you
      * can set it to 80 (default HTTP port).
      */
-    public static final ConfigKey<Integer> WEB_PORT = new ConfigKey<>(
+    public static final ConfigKey<Integer> WEB_PORT = new IntegerConfigKey(
             "web.port",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Maximum API requests per second. Above this limit requests and delayed and throttled.
+     */
+    public static final ConfigKey<Integer> WEB_MAX_REQUESTS_PER_SECOND = new IntegerConfigKey(
+            "web.maxRequestsPerSec",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Maximum API request duration in seconds.
+     */
+    public static final ConfigKey<Integer> WEB_MAX_REQUEST_SECONDS = new IntegerConfigKey(
+            "web.maxRequestSec",
+            List.of(KeyType.CONFIG),
+            600);
+
+    /**
+     * Sanitize all strings returned via API. This is needed to fix XSS issues in the old web interface. New React-based
+     * interface doesn't require this.
+     */
+    public static final ConfigKey<Boolean> WEB_SANITIZE = new BooleanConfigKey(
+            "web.sanitize",
+            List.of(KeyType.CONFIG));
 
     /**
      * Path to the web app folder.
      */
-    public static final ConfigKey<String> WEB_PATH = new ConfigKey<>(
+    public static final ConfigKey<String> WEB_PATH = new StringConfigKey(
             "web.path",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
-     * WebSocket connection timeout in milliseconds. Default timeout is 10 minutes.
+     * Path to a folder with overrides. It can be used for branding to keep custom logos in a separate place.
      */
-    public static final ConfigKey<Long> WEB_TIMEOUT = new ConfigKey<>(
+    public static final ConfigKey<String> WEB_OVERRIDE = new StringConfigKey(
+            "web.override",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * WebSocket connection timeout in milliseconds. Default timeout is 5 minutes.
+     */
+    public static final ConfigKey<Long> WEB_TIMEOUT = new LongConfigKey(
             "web.timeout",
-            Collections.singletonList(KeyType.GLOBAL),
-            60000L);
+            List.of(KeyType.CONFIG),
+            300000L);
 
     /**
      * Authentication sessions timeout in seconds. By default no timeout.
      */
-    public static final ConfigKey<Integer> WEB_SESSION_TIMEOUT = new ConfigKey<>(
+    public static final ConfigKey<Integer> WEB_SESSION_TIMEOUT = new IntegerConfigKey(
             "web.sessionTimeout",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Enable database access console via '/console' URL. Use only for debugging. Never use in production.
      */
-    public static final ConfigKey<Boolean> WEB_CONSOLE = new ConfigKey<>(
+    public static final ConfigKey<Boolean> WEB_CONSOLE = new BooleanConfigKey(
             "web.console",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Server debug version of the web app. Not recommended to use for performance reasons. It is intended to be used
      * for development and debugging purposes.
      */
-    public static final ConfigKey<Boolean> WEB_DEBUG = new ConfigKey<>(
+    public static final ConfigKey<Boolean> WEB_DEBUG = new BooleanConfigKey(
             "web.debug",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
+
+    /**
+     * A token to login as a virtual admin account. Can be used to restore access in case of issues with regular admin
+     * login. For example, if password is lost and can't be restored.
+     */
+    public static final ConfigKey<String> WEB_SERVICE_ACCOUNT_TOKEN = new StringConfigKey(
+            "web.serviceAccountToken",
+            List.of(KeyType.CONFIG));
 
     /**
      * Cross-origin resource sharing origin header value.
      */
-    public static final ConfigKey<String> WEB_ORIGIN = new ConfigKey<>(
+    public static final ConfigKey<String> WEB_ORIGIN = new StringConfigKey(
             "web.origin",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Cache control header value. By default resources are cached for one hour.
      */
-    public static final ConfigKey<String> WEB_CACHE_CONTROL = new ConfigKey<>(
+    public static final ConfigKey<String> WEB_CACHE_CONTROL = new StringConfigKey(
             "web.cacheControl",
-            Collections.singletonList(KeyType.GLOBAL),
+            List.of(KeyType.CONFIG),
             "max-age=3600,public");
 
     /**
-     * URL to forward positions. Data is passed through URL parameters. For example, {uniqueId} for device identifier,
-     * {latitude} and {longitude} for coordinates.
+     * Host for raw data forwarding.
      */
-    public static final ConfigKey<String> FORWARD_URL = new ConfigKey<>(
-            "forward.url",
-            Collections.singletonList(KeyType.GLOBAL));
+    public static final ConfigKey<String> SERVER_FORWARD = new StringConfigKey(
+            "server.forward",
+            List.of(KeyType.CONFIG));
 
     /**
-     * Additional HTTP header, can be used for authorization.
+     * Position forwarding format. Available options are "url", "json" and "kafka". Default is "url".
      */
-    public static final ConfigKey<String> FORWARD_HEADER = new ConfigKey<>(
-            "forward.header",
-            Collections.singletonList(KeyType.GLOBAL));
+    public static final ConfigKey<String> FORWARD_TYPE = new StringConfigKey(
+            "forward.type",
+            List.of(KeyType.CONFIG),
+            "url");
+
+    /**
+     * Position forwarding AMQP exchange.
+     */
+    public static final ConfigKey<String> FORWARD_EXCHANGE = new StringConfigKey(
+            "forward.exchange",
+            List.of(KeyType.CONFIG),
+            "traccar");
 
     /**
-     * Boolean value to enable forwarding in JSON format.
+     * Position forwarding Kafka topic or AQMP Routing Key.
      */
-    public static final ConfigKey<Boolean> FORWARD_JSON = new ConfigKey<>(
-            "forward.json",
-            Collections.singletonList(KeyType.GLOBAL));
+    public static final ConfigKey<String> FORWARD_TOPIC = new StringConfigKey(
+            "forward.topic",
+            List.of(KeyType.CONFIG),
+            "positions");
 
     /**
-     * Boolean value to enable URL parameters in json mode. For example, {uniqueId} for device identifier,
+     * URL to forward positions. Data is passed through URL parameters. For example, {uniqueId} for device identifier,
      * {latitude} and {longitude} for coordinates.
      */
-    public static final ConfigKey<Boolean> FORWARD_URL_VARIABLES = new ConfigKey<>(
-            "forward.urlVariables",
-            Collections.singletonList(KeyType.GLOBAL));
+    public static final ConfigKey<String> FORWARD_URL = new StringConfigKey(
+            "forward.url",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Additional HTTP header, can be used for authorization.
+     */
+    public static final ConfigKey<String> FORWARD_HEADER = new StringConfigKey(
+            "forward.header",
+            List.of(KeyType.CONFIG));
 
     /**
      * Position forwarding retrying enable. When enabled, additional attempts are made to deliver positions. If initial
@@ -641,589 +890,808 @@ public final class Keys {
      * If forwarding is retried for 'forward.retry.count', retrying is canceled and the position is dropped. Positions
      * pending to be delivered are limited to 'forward.retry.limit'. If this limit is reached, positions get discarded.
      */
-    public static final ConfigKey<Boolean> FORWARD_RETRY_ENABLE = new ConfigKey<>(
+    public static final ConfigKey<Boolean> FORWARD_RETRY_ENABLE = new BooleanConfigKey(
             "forward.retry.enable",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Position forwarding retry first delay in milliseconds.
      * Can be set to anything greater than 0. Defaults to 100 milliseconds.
      */
-    public static final ConfigKey<Integer> FORWARD_RETRY_DELAY = new ConfigKey<>(
+    public static final ConfigKey<Integer> FORWARD_RETRY_DELAY = new IntegerConfigKey(
             "forward.retry.delay",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG),
+            100);
 
     /**
      * Position forwarding retry maximum retries.
      * Can be set to anything greater than 0. Defaults to 10 retries.
      */
-    public static final ConfigKey<Integer> FORWARD_RETRY_COUNT = new ConfigKey<>(
+    public static final ConfigKey<Integer> FORWARD_RETRY_COUNT = new IntegerConfigKey(
             "forward.retry.count",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG),
+            10);
 
     /**
      * Position forwarding retry pending positions limit.
      * Can be set to anything greater than 0. Defaults to 100 positions.
      */
-    public static final ConfigKey<Integer> FORWARD_RETRY_LIMIT = new ConfigKey<>(
+    public static final ConfigKey<Integer> FORWARD_RETRY_LIMIT = new IntegerConfigKey(
             "forward.retry.limit",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG),
+            100);
+
+    /**
+     * Events forwarding format. Available options are "json" and "kafka". Default is "json".
+     */
+    public static final ConfigKey<String> EVENT_FORWARD_TYPE = new StringConfigKey(
+            "event.forward.type",
+            List.of(KeyType.CONFIG),
+            "json");
+
+    /**
+     * Events forwarding AMQP exchange.
+     */
+    public static final ConfigKey<String> EVENT_FORWARD_EXCHANGE = new StringConfigKey(
+            "event.forward.exchange",
+            List.of(KeyType.CONFIG),
+            "traccar");
+
+    /**
+     * Events forwarding Kafka topic or AQMP Routing Key.
+     */
+    public static final ConfigKey<String> EVENT_FORWARD_TOPIC = new StringConfigKey(
+            "event.forward.topic",
+            List.of(KeyType.CONFIG),
+            "events");
 
     /**
      * Events forwarding URL.
      */
-    public static final ConfigKey<String> EVENT_FORWARD_URL = new ConfigKey<>(
+    public static final ConfigKey<String> EVENT_FORWARD_URL = new StringConfigKey(
             "event.forward.url",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Events forwarding headers. Example value:
      * FirstHeader: hello
      * SecondHeader: world
      */
-    public static final ConfigKey<String> EVENT_FORWARD_HEADERS = new ConfigKey<>(
+    public static final ConfigKey<String> EVENT_FORWARD_HEADERS = new StringConfigKey(
             "event.forward.header",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
-     * Enable commands queuing when devices are offline. Commands are buffered in memory only, so restarting service
-     * will clear the buffer.
+     * Root folder for all template files.
      */
-    public static final ConfigKey<Boolean> COMMANDS_QUEUEING = new ConfigKey<>(
-            "commands.queueing",
-            Collections.singletonList(KeyType.GLOBAL));
+    public static final ConfigKey<String> TEMPLATES_ROOT = new StringConfigKey(
+            "templates.root",
+            List.of(KeyType.CONFIG),
+            "templates");
+
+    /**
+     * Log emails instead of sending them via SMTP. Intended for testing purposes only.
+     */
+    public static final ConfigKey<Boolean> MAIL_DEBUG = new BooleanConfigKey(
+            "mail.debug",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Restrict global SMTP configuration to system messages only (e.g. password reset).
+     */
+    public static final ConfigKey<Boolean> MAIL_SMTP_SYSTEM_ONLY = new BooleanConfigKey(
+            "mail.smtp.systemOnly",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Force SMTP settings from the config file and ignore user attributes.
+     */
+    public static final ConfigKey<Boolean> MAIL_SMTP_IGNORE_USER_CONFIG = new BooleanConfigKey(
+            "mail.smtp.ignoreUserConfig",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * The SMTP server to connect to.
+     */
+    public static final ConfigKey<String> MAIL_SMTP_HOST = new StringConfigKey(
+            "mail.smtp.host",
+            List.of(KeyType.CONFIG, KeyType.USER));
+
+    /**
+     * The SMTP server port to connect. Defaults to 25.
+     */
+    public static final ConfigKey<Integer> MAIL_SMTP_PORT = new IntegerConfigKey(
+            "mail.smtp.port",
+            List.of(KeyType.CONFIG, KeyType.USER),
+            25);
+
+    /**
+     * Email transport protocol. Default value is "smtp".
+     */
+    public static final ConfigKey<String> MAIL_TRANSPORT_PROTOCOL = new StringConfigKey(
+            "mail.transport.protocol",
+            List.of(KeyType.CONFIG, KeyType.USER),
+            "smtp");
+
+    /**
+     * If true, enables the use of the STARTTLS command (if supported by the server) to switch the connection to a
+     * TLS-protected connection before issuing any login commands.
+     */
+    public static final ConfigKey<Boolean> MAIL_SMTP_STARTTLS_ENABLE = new BooleanConfigKey(
+            "mail.smtp.starttls.enable",
+            List.of(KeyType.CONFIG, KeyType.USER));
+
+    /**
+     * If true, requires the use of the STARTTLS command. If the server doesn't support the STARTTLS command, or the
+     * command fails, the connect method will fail.
+     */
+    public static final ConfigKey<Boolean> MAIL_SMTP_STARTTLS_REQUIRED = new BooleanConfigKey(
+            "mail.smtp.starttls.required",
+            List.of(KeyType.CONFIG, KeyType.USER));
+
+    /**
+     * If set to true, use SSL to connect and use the SSL port by default.
+     */
+    public static final ConfigKey<Boolean> MAIL_SMTP_SSL_ENABLE = new BooleanConfigKey(
+            "mail.smtp.ssl.enable",
+            List.of(KeyType.CONFIG, KeyType.USER));
+
+    /**
+     * If set to "*", all hosts are trusted. If set to a whitespace separated list of hosts, those hosts are trusted.
+     * Otherwise, trust depends on the certificate the server presents.
+     */
+    public static final ConfigKey<String> MAIL_SMTP_SSL_TRUST = new StringConfigKey(
+            "mail.smtp.ssl.trust",
+            List.of(KeyType.CONFIG, KeyType.USER));
+
+    /**
+     * Specifies the SSL protocols that will be enabled for SSL connections.
+     */
+    public static final ConfigKey<String> MAIL_SMTP_SSL_PROTOCOLS = new StringConfigKey(
+            "mail.smtp.ssl.protocols",
+            List.of(KeyType.CONFIG, KeyType.USER));
+
+    /**
+     * SMTP connection username.
+     */
+    public static final ConfigKey<String> MAIL_SMTP_USERNAME = new StringConfigKey(
+            "mail.smtp.username",
+            List.of(KeyType.CONFIG, KeyType.USER));
+
+    /**
+     * SMTP connection password.
+     */
+    public static final ConfigKey<String> MAIL_SMTP_PASSWORD = new StringConfigKey(
+            "mail.smtp.password",
+            List.of(KeyType.CONFIG, KeyType.USER));
+
+    /**
+     * Email address to use for SMTP MAIL command.
+     */
+    public static final ConfigKey<String> MAIL_SMTP_FROM = new StringConfigKey(
+            "mail.smtp.from",
+            List.of(KeyType.CONFIG, KeyType.USER));
+
+    /**
+     * The personal name for the email from address.
+     */
+    public static final ConfigKey<String> MAIL_SMTP_FROM_NAME = new StringConfigKey(
+            "mail.smtp.fromName",
+            List.of(KeyType.CONFIG, KeyType.USER));
 
     /**
      * SMS API service full URL. Enables SMS commands and notifications.
      */
-    public static final ConfigKey<String> SMS_HTTP_URL = new ConfigKey<>(
+    public static final ConfigKey<String> SMS_HTTP_URL = new StringConfigKey(
             "sms.http.url",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * SMS API authorization header name. Default value is 'Authorization'.
      */
-    public static final ConfigKey<String> SMS_HTTP_AUTHORIZATION_HEADER = new ConfigKey<>(
+    public static final ConfigKey<String> SMS_HTTP_AUTHORIZATION_HEADER = new StringConfigKey(
             "sms.http.authorizationHeader",
-            Collections.singletonList(KeyType.GLOBAL),
+            List.of(KeyType.CONFIG),
             "Authorization");
 
     /**
      * SMS API authorization header value. This value takes precedence over user and password.
      */
-    public static final ConfigKey<String> SMS_HTTP_AUTHORIZATION = new ConfigKey<>(
+    public static final ConfigKey<String> SMS_HTTP_AUTHORIZATION = new StringConfigKey(
             "sms.http.authorization",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * SMS API basic authentication user.
      */
-    public static final ConfigKey<String> SMS_HTTP_USER = new ConfigKey<>(
+    public static final ConfigKey<String> SMS_HTTP_USER = new StringConfigKey(
             "sms.http.user",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * SMS API basic authentication password.
      */
-    public static final ConfigKey<String> SMS_HTTP_PASSWORD = new ConfigKey<>(
+    public static final ConfigKey<String> SMS_HTTP_PASSWORD = new StringConfigKey(
             "sms.http.password",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * SMS API body template. Placeholders {phone} and {message} can be used in the template.
      * If value starts with '{' or '[', server automatically assumes JSON format.
      */
-    public static final ConfigKey<String> SMS_HTTP_TEMPLATE = new ConfigKey<>(
+    public static final ConfigKey<String> SMS_HTTP_TEMPLATE = new StringConfigKey(
             "sms.http.template",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * AWS Access Key with SNS permission.
      */
-    public static final ConfigKey<String> SMS_AWS_ACCESS = new ConfigKey<>(
+    public static final ConfigKey<String> SMS_AWS_ACCESS = new StringConfigKey(
             "sms.aws.access",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * AWS Secret Access Key with SNS permission.
      */
-    public static final ConfigKey<String> SMS_AWS_SECRET = new ConfigKey<>(
+    public static final ConfigKey<String> SMS_AWS_SECRET = new StringConfigKey(
             "sms.aws.secret",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * AWS Region for SNS service.
      * Make sure to use regions that are supported for messaging.
      */
-    public static final ConfigKey<String> SMS_AWS_REGION = new ConfigKey<>(
+    public static final ConfigKey<String> SMS_AWS_REGION = new StringConfigKey(
             "sms.aws.region",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Enabled notification options. Comma-separated string is expected.
+     * Example: web,mail,sms
+     */
+    public static final ConfigKey<String> NOTIFICATOR_TYPES = new StringConfigKey(
+            "notificator.types",
+            List.of(KeyType.CONFIG));
 
     /**
      * Traccar notification API key.
      */
-    public static final ConfigKey<String> NOTIFICATOR_TRACCAR_KEY = new ConfigKey<>(
+    public static final ConfigKey<String> NOTIFICATOR_TRACCAR_KEY = new StringConfigKey(
             "notificator.traccar.key",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
-     * Firebase server API key for push notifications.
+     * Firebase service account JSON.
      */
-    public static final ConfigKey<String> NOTIFICATOR_FIREBASE_KEY = new ConfigKey<>(
-            "notificator.firebase.key",
-            Collections.singletonList(KeyType.GLOBAL));
+    public static final ConfigKey<String> NOTIFICATOR_FIREBASE_SERVICE_ACCOUNT = new StringConfigKey(
+            "notificator.firebase.serviceAccount",
+            List.of(KeyType.CONFIG));
 
     /**
      * Pushover notification user name.
      */
-    public static final ConfigKey<String> NOTIFICATOR_PUSHOVER_USER = new ConfigKey<>(
+    public static final ConfigKey<String> NOTIFICATOR_PUSHOVER_USER = new StringConfigKey(
             "notificator.pushover.user",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Pushover notification user token.
      */
-    public static final ConfigKey<String> NOTIFICATOR_PUSHOVER_TOKEN = new ConfigKey<>(
+    public static final ConfigKey<String> NOTIFICATOR_PUSHOVER_TOKEN = new StringConfigKey(
             "notificator.pushover.token",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Telegram notification API key.
      */
-    public static final ConfigKey<String> NOTIFICATOR_TELEGRAM_KEY = new ConfigKey<>(
+    public static final ConfigKey<String> NOTIFICATOR_TELEGRAM_KEY = new StringConfigKey(
             "notificator.telegram.key",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Telegram notification chat id to post messages to.
      */
-    public static final ConfigKey<String> NOTIFICATOR_TELEGRAM_CHAT_ID = new ConfigKey<>(
+    public static final ConfigKey<String> NOTIFICATOR_TELEGRAM_CHAT_ID = new StringConfigKey(
             "notificator.telegram.chatId",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Telegram notification send location message.
      */
-    public static final ConfigKey<Boolean> NOTIFICATOR_TELEGRAM_SEND_LOCATION = new ConfigKey<>(
+    public static final ConfigKey<Boolean> NOTIFICATOR_TELEGRAM_SEND_LOCATION = new BooleanConfigKey(
             "notificator.telegram.sendLocation",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Maximum time period for reports in seconds. Can be useful to prevent users to request unreasonably long reports.
      * By default there is no limit.
      */
-    public static final ConfigKey<Long> REPORT_PERIOD_LIMIT = new ConfigKey<>(
+    public static final ConfigKey<Long> REPORT_PERIOD_LIMIT = new LongConfigKey(
             "report.periodLimit",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Time threshold for fast reports. Fast reports are more efficient, but less accurate and missing some information.
+     * The value is in seconds. One day by default.
+     */
+    public static final ConfigKey<Long> REPORT_FAST_THRESHOLD = new LongConfigKey(
+            "report.fastThreshold",
+            List.of(KeyType.CONFIG),
+            86400L);
 
     /**
      * Trips less than minimal duration and minimal distance are ignored. 300 seconds and 500 meters are default.
      */
-    public static final ConfigKey<Long> REPORT_TRIP_MINIMAL_TRIP_DISTANCE = new ConfigKey<>(
+    public static final ConfigKey<Long> REPORT_TRIP_MINIMAL_TRIP_DISTANCE = new LongConfigKey(
             "report.trip.minimalTripDistance",
-            Collections.singletonList(KeyType.GLOBAL),
+            List.of(KeyType.CONFIG, KeyType.DEVICE),
             500L);
 
     /**
      * Trips less than minimal duration and minimal distance are ignored. 300 seconds and 500 meters are default.
      */
-    public static final ConfigKey<Long> REPORT_TRIP_MINIMAL_TRIP_DURATION = new ConfigKey<>(
+    public static final ConfigKey<Long> REPORT_TRIP_MINIMAL_TRIP_DURATION = new LongConfigKey(
             "report.trip.minimalTripDuration",
-            Collections.singletonList(KeyType.GLOBAL),
+            List.of(KeyType.CONFIG, KeyType.DEVICE),
             300L);
 
     /**
      * Parking less than minimal duration does not cut trip. Default 300 seconds.
      */
-    public static final ConfigKey<Long> REPORT_TRIP_MINIMAL_PARKING_DURATION = new ConfigKey<>(
+    public static final ConfigKey<Long> REPORT_TRIP_MINIMAL_PARKING_DURATION = new LongConfigKey(
             "report.trip.minimalParkingDuration",
-            Collections.singletonList(KeyType.GLOBAL),
+            List.of(KeyType.CONFIG, KeyType.DEVICE),
             300L);
 
     /**
      * Gaps of more than specified time are counted as stops. Default value is one hour.
      */
-    public static final ConfigKey<Long> REPORT_TRIP_MINIMAL_NO_DATA_DURATION = new ConfigKey<>(
+    public static final ConfigKey<Long> REPORT_TRIP_MINIMAL_NO_DATA_DURATION = new LongConfigKey(
             "report.trip.minimalNoDataDuration",
-            Collections.singletonList(KeyType.GLOBAL),
+            List.of(KeyType.CONFIG, KeyType.DEVICE),
             3600L);
 
     /**
      * Flag to enable ignition use for trips calculation.
      */
-    public static final ConfigKey<Boolean> REPORT_TRIP_USE_IGNITION = new ConfigKey<>(
+    public static final ConfigKey<Boolean> REPORT_TRIP_USE_IGNITION = new BooleanConfigKey(
             "report.trip.useIgnition",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG, KeyType.DEVICE),
+            false);
+
+    /**
+     * Ignore odometer value reported by the device and use server-calculated total distance instead. This is useful
+     * if device reports invalid or zero odometer values.
+     */
+    public static final ConfigKey<Boolean> REPORT_IGNORE_ODOMETER = new BooleanConfigKey(
+            "report.ignoreOdometer",
+            List.of(KeyType.CONFIG),
+            false);
 
     /**
      * Boolean flag to enable or disable position filtering.
      */
-    public static final ConfigKey<Boolean> FILTER_ENABLE = new ConfigKey<>(
+    public static final ConfigKey<Boolean> FILTER_ENABLE = new BooleanConfigKey(
             "filter.enable",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Filter invalid (valid field is set to false) positions.
      */
-    public static final ConfigKey<Boolean> FILTER_INVALID = new ConfigKey<>(
+    public static final ConfigKey<Boolean> FILTER_INVALID = new BooleanConfigKey(
             "filter.invalid",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Filter zero coordinates. Zero latitude and longitude are theoretically valid values, but it practice it usually
      * indicates invalid GPS data.
      */
-    public static final ConfigKey<Boolean> FILTER_ZERO = new ConfigKey<>(
+    public static final ConfigKey<Boolean> FILTER_ZERO = new BooleanConfigKey(
             "filter.zero",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Filter duplicate records (duplicates are detected by time value).
      */
-    public static final ConfigKey<Boolean> FILTER_DUPLICATE = new ConfigKey<>(
+    public static final ConfigKey<Boolean> FILTER_DUPLICATE = new BooleanConfigKey(
             "filter.duplicate",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Filter messages that do not have GPS location. If they are not filtered, they will include the last known
+     * location.
+     */
+    public static final ConfigKey<Boolean> FILTER_OUTDATED = new BooleanConfigKey(
+            "filter.outdated",
+            List.of(KeyType.CONFIG));
 
     /**
-     * Filter records with fix time in future. The values is specified in seconds. Records that have fix time more than
-     * specified number of seconds later than current server time would be filtered out.
+     * Filter records with fix time in the future. The value is specified in seconds. Records that have fix time more
+     * than the specified number of seconds later than current server time would be filtered out.
      */
-    public static final ConfigKey<Long> FILTER_FUTURE = new ConfigKey<>(
+    public static final ConfigKey<Long> FILTER_FUTURE = new LongConfigKey(
             "filter.future",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Filter records with fix time in the past. The value is specified in seconds. Records that have fix time more
+     * than the specified number of seconds before current server time would be filtered out.
+     */
+    public static final ConfigKey<Long> FILTER_PAST = new LongConfigKey(
+            "filter.past",
+            List.of(KeyType.CONFIG));
 
     /**
      * Filter positions with accuracy less than specified value in meters.
      */
-    public static final ConfigKey<Integer> FILTER_ACCURACY = new ConfigKey<>(
+    public static final ConfigKey<Integer> FILTER_ACCURACY = new IntegerConfigKey(
             "filter.accuracy",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Filter cell and wifi locations that are coming from geolocation provider.
      */
-    public static final ConfigKey<Boolean> FILTER_APPROXIMATE = new ConfigKey<>(
+    public static final ConfigKey<Boolean> FILTER_APPROXIMATE = new BooleanConfigKey(
             "filter.approximate",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Filter positions with exactly zero speed values.
      */
-    public static final ConfigKey<Boolean> FILTER_STATIC = new ConfigKey<>(
+    public static final ConfigKey<Boolean> FILTER_STATIC = new BooleanConfigKey(
             "filter.static",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Filter records by distance. The values is specified in meters. If the new position is less far than this value
      * from the last one it gets filtered out.
      */
-    public static final ConfigKey<Integer> FILTER_DISTANCE = new ConfigKey<>(
+    public static final ConfigKey<Integer> FILTER_DISTANCE = new IntegerConfigKey(
             "filter.distance",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Filter records by Maximum Speed value in knots. Can be used to filter jumps to far locations even if Position
      * appears valid or if Position `speed` field reported by the device is also within limits. Calculates speed from
      * the distance to the previous position and the elapsed time.
-     *
      * Tip: Shouldn't be too low. Start testing with values at about 25000.
      */
-    public static final ConfigKey<Integer> FILTER_MAX_SPEED = new ConfigKey<>(
+    public static final ConfigKey<Integer> FILTER_MAX_SPEED = new IntegerConfigKey(
             "filter.maxSpeed",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Filter position if time from previous position is less than specified value in seconds.
      */
-    public static final ConfigKey<Integer> FILTER_MIN_PERIOD = new ConfigKey<>(
+    public static final ConfigKey<Integer> FILTER_MIN_PERIOD = new IntegerConfigKey(
             "filter.minPeriod",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Filter position if the daily limit is exceeded for the device.
+     */
+    public static final ConfigKey<Integer> FILTER_DAILY_LIMIT = new IntegerConfigKey(
+            "filter.dailyLimit",
+            List.of(KeyType.CONFIG));
 
     /**
      * If false, the server expects all locations to come sequentially (for each device). Filter checks for duplicates,
      * distance, speed, or time period only against the location that was last received by server.
-     *
      * If true, the server expects locations to come at random order (since tracking device might go offline).
      * Filter checks for duplicates, distance, speed, or time period against the preceding Position's.
      * Important: setting to true can cause potential performance issues.
      */
-    public static final ConfigKey<Boolean> FILTER_RELATIVE = new ConfigKey<>(
+    public static final ConfigKey<Boolean> FILTER_RELATIVE = new BooleanConfigKey(
             "filter.relative",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Time limit for the filtering in seconds. If the time difference between the last position was received by server
      * and a new position is received by server is more than this limit, the new position will not be filtered out.
      */
-    public static final ConfigKey<Long> FILTER_SKIP_LIMIT = new ConfigKey<>(
+    public static final ConfigKey<Long> FILTER_SKIP_LIMIT = new LongConfigKey(
             "filter.skipLimit",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Enable attributes skipping. Attribute skipping can be enabled in the config or device attributes.
      * If position contains any attribute mentioned in "filter.skipAttributes" config key, position is not filtered out.
      */
-    public static final ConfigKey<Boolean> FILTER_SKIP_ATTRIBUTES_ENABLE = new ConfigKey<>(
+    public static final ConfigKey<Boolean> FILTER_SKIP_ATTRIBUTES_ENABLE = new BooleanConfigKey(
             "filter.skipAttributes.enable",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Attribute skipping can be enabled in the config or device attributes.
+     * If position contains any attribute mentioned in "filter.skipAttributes" config key, position is not filtered out.
+     */
+    public static final ConfigKey<String> FILTER_SKIP_ATTRIBUTES = new StringConfigKey(
+            "filter.skipAttributes",
+            List.of(KeyType.CONFIG, KeyType.DEVICE),
+            "");
 
     /**
      * Override device time. Possible values are 'deviceTime' and 'serverTime'
      */
-    public static final ConfigKey<String> TIME_OVERRIDE = new ConfigKey<>(
+    public static final ConfigKey<String> TIME_OVERRIDE = new StringConfigKey(
             "time.override",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
+
+    /**
+     * List of protocols to enable. If not specified, Traccar enabled all protocols that have port numbers listed.
+     * The value is a comma-separated list of protocol names.
+     * Example value: teltonika,osmand
+     */
+    public static final ConfigKey<String> PROTOCOLS_ENABLE = new StringConfigKey(
+            "protocols.enable",
+            List.of(KeyType.CONFIG));
 
     /**
      * List of protocols for overriding time. If not specified override is applied globally. List consist of protocol
      * names that can be separated by comma or single space character.
      */
-    public static final ConfigKey<String> TIME_PROTOCOLS = new ConfigKey<>(
+    public static final ConfigKey<String> TIME_PROTOCOLS = new StringConfigKey(
             "time.protocols",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Replaces coordinates with last known if change is less than a 'coordinates.minError' meters
      * or more than a 'coordinates.maxError' meters. Helps to avoid coordinates jumps during parking period
      * or jumps to zero coordinates.
      */
-    public static final ConfigKey<Boolean> COORDINATES_FILTER = new ConfigKey<>(
+    public static final ConfigKey<Boolean> COORDINATES_FILTER = new BooleanConfigKey(
             "coordinates.filter",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Distance in meters. Distances below this value gets handled like explained in 'coordinates.filter'.
      */
-    public static final ConfigKey<Integer> COORDINATES_MIN_ERROR = new ConfigKey<>(
+    public static final ConfigKey<Integer> COORDINATES_MIN_ERROR = new IntegerConfigKey(
             "coordinates.minError",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Distance in meters. Distances above this value gets handled like explained in 'coordinates.filter', but only if
      * Position is also marked as 'invalid'.
      */
-    public static final ConfigKey<Integer> COORDINATES_MAX_ERROR = new ConfigKey<>(
+    public static final ConfigKey<Integer> COORDINATES_MAX_ERROR = new IntegerConfigKey(
             "coordinates.maxError",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Enable to save device IP addresses information. Disabled by default.
      */
-    public static final ConfigKey<Boolean> PROCESSING_REMOTE_ADDRESS_ENABLE = new ConfigKey<>(
+    public static final ConfigKey<Boolean> PROCESSING_REMOTE_ADDRESS_ENABLE = new BooleanConfigKey(
             "processing.remoteAddress.enable",
-            Collections.singletonList(KeyType.GLOBAL));
-
-    /**
-     * Enable engine hours calculation on the server side. It uses ignition value to determine engine state.
-     */
-    public static final ConfigKey<Boolean> PROCESSING_ENGINE_HOURS_ENABLE = new ConfigKey<>(
-            "processing.engineHours.enable",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Enable copying of missing attributes from last position to the current one. Might be useful if device doesn't
      * send some values in every message.
      */
-    public static final ConfigKey<Boolean> PROCESSING_COPY_ATTRIBUTES_ENABLE = new ConfigKey<>(
+    public static final ConfigKey<Boolean> PROCESSING_COPY_ATTRIBUTES_ENABLE = new BooleanConfigKey(
             "processing.copyAttributes.enable",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
-     * Enable computed attributes processing.
+     * List of attributes to copy. Attributes should be separated by a comma without any spacing.
+     * For example: alarm,ignition
      */
-    public static final ConfigKey<Boolean> PROCESSING_COMPUTED_ATTRIBUTES_ENABLE = new ConfigKey<>(
-            "processing.computedAttributes.enable",
-            Collections.singletonList(KeyType.GLOBAL));
+    public static final ConfigKey<String> PROCESSING_COPY_ATTRIBUTES = new StringConfigKey(
+            "processing.copyAttributes",
+            List.of(KeyType.CONFIG, KeyType.DEVICE));
 
     /**
      * Enable computed attributes processing.
      */
-    public static final ConfigKey<Boolean> PROCESSING_COMPUTED_ATTRIBUTES_DEVICE_ATTRIBUTES = new ConfigKey<>(
+    public static final ConfigKey<Boolean> PROCESSING_COMPUTED_ATTRIBUTES_DEVICE_ATTRIBUTES = new BooleanConfigKey(
             "processing.computedAttributes.deviceAttributes",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Enable local variables declaration.
+     */
+    public static final ConfigKey<Boolean> PROCESSING_COMPUTED_ATTRIBUTES_LOCAL_VARIABLES = new BooleanConfigKey(
+            "processing.computedAttributes.localVariables",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Enable loops processing.
+     */
+    public static final ConfigKey<Boolean> PROCESSING_COMPUTED_ATTRIBUTES_LOOPS = new BooleanConfigKey(
+            "processing.computedAttributes.loops",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Enable new instances creation.
+     * When disabled, parsing a script/expression using 'new(...)' will throw a parsing exception;
+     */
+    public static final ConfigKey<Boolean> PROCESSING_COMPUTED_ATTRIBUTES_NEW_INSTANCE_CREATION = new BooleanConfigKey(
+            "processing.computedAttributes.newInstanceCreation",
+            List.of(KeyType.CONFIG));
 
     /**
      * Boolean flag to enable or disable reverse geocoder.
      */
-    public static final ConfigKey<Boolean> GEOCODER_ENABLE = new ConfigKey<>(
+    public static final ConfigKey<Boolean> GEOCODER_ENABLE = new BooleanConfigKey(
             "geocoder.enable",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Reverse geocoder type. Check reverse geocoding documentation for more info. By default (if the value is not
      * specified) server uses Google API.
      */
-    public static final ConfigKey<String> GEOCODER_TYPE = new ConfigKey<>(
+    public static final ConfigKey<String> GEOCODER_TYPE = new StringConfigKey(
             "geocoder.type",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Geocoder server URL. Applicable only to Nominatim and Gisgraphy providers.
      */
-    public static final ConfigKey<String> GEOCODER_URL = new ConfigKey<>(
+    public static final ConfigKey<String> GEOCODER_URL = new StringConfigKey(
             "geocoder.url",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * App id for use with Here provider.
      */
-    public static final ConfigKey<String> GEOCODER_ID = new ConfigKey<>(
+    public static final ConfigKey<String> GEOCODER_ID = new StringConfigKey(
             "geocoder.id",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Provider API key. Most providers require API keys.
      */
-    public static final ConfigKey<String> GEOCODER_KEY = new ConfigKey<>(
+    public static final ConfigKey<String> GEOCODER_KEY = new StringConfigKey(
             "geocoder.key",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Language parameter for providers that support localization (e.g. Google and Nominatim).
      */
-    public static final ConfigKey<String> GEOCODER_LANGUAGE = new ConfigKey<>(
+    public static final ConfigKey<String> GEOCODER_LANGUAGE = new StringConfigKey(
             "geocoder.language",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Address format string. Default value is %h %r, %t, %s, %c. See AddressFormat for more info.
      */
-    public static final ConfigKey<String> GEOCODER_FORMAT = new ConfigKey<>(
+    public static final ConfigKey<String> GEOCODER_FORMAT = new StringConfigKey(
             "geocoder.format",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Cache size for geocoding results.
      */
-    public static final ConfigKey<Integer> GEOCODER_CACHE_SIZE = new ConfigKey<>(
+    public static final ConfigKey<Integer> GEOCODER_CACHE_SIZE = new IntegerConfigKey(
             "geocoder.cacheSize",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Disable automatic reverse geocoding requests for all positions.
      */
-    public static final ConfigKey<Boolean> GEOCODER_IGNORE_POSITIONS = new ConfigKey<>(
+    public static final ConfigKey<Boolean> GEOCODER_IGNORE_POSITIONS = new BooleanConfigKey(
             "geocoder.ignorePositions",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Boolean flag to apply reverse geocoding to invalid positions.
      */
-    public static final ConfigKey<Boolean> GEOCODER_PROCESS_INVALID_POSITIONS = new ConfigKey<>(
+    public static final ConfigKey<Boolean> GEOCODER_PROCESS_INVALID_POSITIONS = new BooleanConfigKey(
             "geocoder.processInvalidPositions",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Optional parameter to specify minimum distance for new reverse geocoding request. If distance is less than
      * specified value (in meters), then Traccar will reuse last known address.
      */
-    public static final ConfigKey<Integer> GEOCODER_REUSE_DISTANCE = new ConfigKey<>(
+    public static final ConfigKey<Integer> GEOCODER_REUSE_DISTANCE = new IntegerConfigKey(
             "geocoder.reuseDistance",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Perform geocoding when preparing reports and sending notifications.
      */
-    public static final ConfigKey<Boolean> GEOCODER_ON_REQUEST = new ConfigKey<>(
+    public static final ConfigKey<Boolean> GEOCODER_ON_REQUEST = new BooleanConfigKey(
             "geocoder.onRequest",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Boolean flag to enable LBS location resolution. Some devices send cell towers information and WiFi point when GPS
      * location is not available. Traccar can determine coordinates based on that information using third party
      * services. Default value is false.
      */
-    public static final ConfigKey<Boolean> GEOLOCATION_ENABLE = new ConfigKey<>(
+    public static final ConfigKey<Boolean> GEOLOCATION_ENABLE = new BooleanConfigKey(
             "geolocation.enable",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Provider to use for LBS location. Available options: google, mozilla and opencellid. By default opencellid is
      * used. You have to supply a key that you get from corresponding provider. For more information see LBS geolocation
      * documentation.
      */
-    public static final ConfigKey<String> GEOLOCATION_TYPE = new ConfigKey<>(
+    public static final ConfigKey<String> GEOLOCATION_TYPE = new StringConfigKey(
             "geolocation.type",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Geolocation provider API URL address. Not required for most providers.
      */
-    public static final ConfigKey<String> GEOLOCATION_URL = new ConfigKey<>(
+    public static final ConfigKey<String> GEOLOCATION_URL = new StringConfigKey(
             "geolocation.url",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Provider API key. OpenCellID service requires API key.
      */
-    public static final ConfigKey<String> GEOLOCATION_KEY = new ConfigKey<>(
+    public static final ConfigKey<String> GEOLOCATION_KEY = new StringConfigKey(
             "geolocation.key",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Boolean flag to apply geolocation to invalid positions.
      */
-    public static final ConfigKey<Boolean> GEOLOCATION_PROCESS_INVALID_POSITIONS = new ConfigKey<>(
+    public static final ConfigKey<Boolean> GEOLOCATION_PROCESS_INVALID_POSITIONS = new BooleanConfigKey(
             "geolocation.processInvalidPositions",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Reuse last geolocation result if network details have not changed.
+     */
+    public static final ConfigKey<Boolean> GEOLOCATION_REUSE = new BooleanConfigKey(
+            "geolocation.reuse",
+            List.of(KeyType.CONFIG));
 
     /**
      * Default MCC value to use if device doesn't report MCC.
      */
-    public static final ConfigKey<Integer> GEOLOCATION_MCC = new ConfigKey<>(
+    public static final ConfigKey<Integer> GEOLOCATION_MCC = new IntegerConfigKey(
             "geolocation.mcc",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Default MNC value to use if device doesn't report MNC.
      */
-    public static final ConfigKey<Integer> GEOLOCATION_MNC = new ConfigKey<>(
+    public static final ConfigKey<Integer> GEOLOCATION_MNC = new IntegerConfigKey(
             "geolocation.mnc",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Boolean flag to enable speed limit API to get speed limit values depending on location. Default value is false.
      */
-    public static final ConfigKey<Boolean> SPEED_LIMIT_ENABLE = new ConfigKey<>(
+    public static final ConfigKey<Boolean> SPEED_LIMIT_ENABLE = new BooleanConfigKey(
             "speedLimit.enable",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Provider to use for speed limit. Available options: overpass. By default overpass is used.
      */
-    public static final ConfigKey<String> SPEED_LIMIT_TYPE = new ConfigKey<>(
+    public static final ConfigKey<String> SPEED_LIMIT_TYPE = new StringConfigKey(
             "speedLimit.type",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Speed limit provider API URL address.
      */
-    public static final ConfigKey<String> SPEED_LIMIT_URL = new ConfigKey<>(
+    public static final ConfigKey<String> SPEED_LIMIT_URL = new StringConfigKey(
             "speedLimit.url",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Override latitude sign / hemisphere. Useful in cases where value is incorrect because of device bug. Value can be
      * N for North or S for South.
      */
-    public static final ConfigKey<String> LOCATION_LATITUDE_HEMISPHERE = new ConfigKey<>(
+    public static final ConfigKey<String> LOCATION_LATITUDE_HEMISPHERE = new StringConfigKey(
             "location.latitudeHemisphere",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Override longitude sign / hemisphere. Useful in cases where value is incorrect because of device bug. Value can
      * be E for East or W for West.
      */
-    public static final ConfigKey<String> LOCATION_LONGITUDE_HEMISPHERE = new ConfigKey<>(
+    public static final ConfigKey<String> LOCATION_LONGITUDE_HEMISPHERE = new StringConfigKey(
             "location.longitudeHemisphere",
-            Collections.singletonList(KeyType.GLOBAL));
-
-    /**
-     * Enable Jetty Request Log.
-     */
-    public static final ConfigKey<Boolean> WEB_REQUEST_LOG_ENABLE = new ConfigKey<>(
-            "web.requestLog.enable",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Jetty Request Log Path.
@@ -1231,82 +1699,136 @@ public final class Keys {
      * over the file.
      * Example: ./logs/jetty-yyyy_mm_dd.request.log
      */
-    public static final ConfigKey<String> WEB_REQUEST_LOG_PATH = new ConfigKey<>(
+    public static final ConfigKey<String> WEB_REQUEST_LOG_PATH = new StringConfigKey(
             "web.requestLog.path",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Set the number of days before rotated request log files are deleted.
      */
-    public static final ConfigKey<Integer> WEB_REQUEST_LOG_RETAIN_DAYS = new ConfigKey<>(
+    public static final ConfigKey<Integer> WEB_REQUEST_LOG_RETAIN_DAYS = new IntegerConfigKey(
             "web.requestLog.retainDays",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Disable systemd health checks.
      */
-    public static final ConfigKey<Boolean> WEB_DISABLE_HEALTH_CHECK = new ConfigKey<>(
+    public static final ConfigKey<Boolean> WEB_DISABLE_HEALTH_CHECK = new BooleanConfigKey(
             "web.disableHealthCheck",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Sets SameSite cookie attribute value.
      * Supported options: Lax, Strict, None.
      */
-    public static final ConfigKey<String> WEB_SAME_SITE_COOKIE = new ConfigKey<>(
+    public static final ConfigKey<String> WEB_SAME_SITE_COOKIE = new StringConfigKey(
             "web.sameSiteCookie",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Enables persisting Jetty session to the database
      */
-    public static final ConfigKey<Boolean> WEB_PERSIST_SESSION = new ConfigKey<>(
+    public static final ConfigKey<Boolean> WEB_PERSIST_SESSION = new BooleanConfigKey(
             "web.persistSession",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Public URL for the web app. Used for notification, report link and OpenID Connect.
+     * If not provided, Traccar will attempt to get a URL from the server IP address, but it might be a local address.
+     */
+    public static final ConfigKey<String> WEB_URL = new StringConfigKey(
+            "web.url",
+            List.of(KeyType.CONFIG));
 
     /**
      * Output logging to the standard terminal output instead of a log file.
      */
-    public static final ConfigKey<Boolean> LOGGER_CONSOLE = new ConfigKey<>(
+    public static final ConfigKey<Boolean> LOGGER_CONSOLE = new BooleanConfigKey(
             "logger.console",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Log executed SQL queries.
+     */
+    public static final ConfigKey<Boolean> LOGGER_QUERIES = new BooleanConfigKey(
+            "logger.queries",
+            List.of(KeyType.CONFIG));
 
     /**
      * Log file name. For rotating logs, a date is added at the end of the file name for non-current logs.
      */
-    public static final ConfigKey<String> LOGGER_FILE = new ConfigKey<>(
+    public static final ConfigKey<String> LOGGER_FILE = new StringConfigKey(
             "logger.file",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Logging level. Default value is 'info'.
      * Available options: off, severe, warning, info, config, fine, finer, finest, all.
      */
-    public static final ConfigKey<String> LOGGER_LEVEL = new ConfigKey<>(
+    public static final ConfigKey<String> LOGGER_LEVEL = new StringConfigKey(
             "logger.level",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Print full exception traces. Useful for debugging. By default shortened traces are logged.
      */
-    public static final ConfigKey<Boolean> LOGGER_FULL_STACK_TRACES = new ConfigKey<>(
+    public static final ConfigKey<Boolean> LOGGER_FULL_STACK_TRACES = new BooleanConfigKey(
             "logger.fullStackTraces",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
 
     /**
      * Create a new log file daily. Helps with log management. For example, downloading and cleaning logs. Enabled by
      * default.
      */
-    public static final ConfigKey<Boolean> LOGGER_ROTATE = new ConfigKey<>(
+    public static final ConfigKey<Boolean> LOGGER_ROTATE = new BooleanConfigKey(
             "logger.rotate",
-            Collections.singletonList(KeyType.GLOBAL));
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Log file rotation interval, the default rotation interval is once a day.
+     * This option is ignored if 'logger.rotate' = false
+     * Available options: day, hour
+     */
+    public static final ConfigKey<String> LOGGER_ROTATE_INTERVAL = new StringConfigKey(
+            "logger.rotate.interval",
+            List.of(KeyType.CONFIG),
+            "day");
 
     /**
      * A list of position attributes to log.
      */
-    public static final ConfigKey<String> LOGGER_ATTRIBUTES = new ConfigKey<>(
+    public static final ConfigKey<String> LOGGER_ATTRIBUTES = new StringConfigKey(
             "logger.attributes",
-            Collections.singletonList(KeyType.GLOBAL),
+            List.of(KeyType.CONFIG),
             "time,position,speed,course,accuracy,result");
 
+    /**
+     * Broadcast method. Available options are "multicast" and "redis". By default (if the value is not
+     * specified or does not matches available options) server disables broadcast.
+     */
+    public static final ConfigKey<String> BROADCAST_TYPE = new StringConfigKey(
+            "broadcast.type",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Multicast interface. It can be either an IP address or an interface name.
+     */
+    public static final ConfigKey<String> BROADCAST_INTERFACE = new StringConfigKey(
+            "broadcast.interface",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Multicast address or Redis URL for broadcasting synchronization events.
+     */
+    public static final ConfigKey<String> BROADCAST_ADDRESS = new StringConfigKey(
+            "broadcast.address",
+            List.of(KeyType.CONFIG));
+
+    /**
+     * Multicast port for broadcasting synchronization events.
+     */
+    public static final ConfigKey<Integer> BROADCAST_PORT = new IntegerConfigKey(
+            "broadcast.port",
+            List.of(KeyType.CONFIG));
+
 }
diff --git a/src/main/java/org/traccar/database/AttributesManager.java b/src/main/java/org/traccar/database/AttributesManager.java
deleted file mode 100644
index 28816645a..000000000
--- a/src/main/java/org/traccar/database/AttributesManager.java
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright 2017 Anton Tananaev (anton@traccar.org)
- * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.database;
-
-import org.traccar.model.Attribute;
-
-public class AttributesManager extends ExtendedObjectManager<Attribute> {
-
-    public AttributesManager(DataManager dataManager) {
-        super(dataManager, Attribute.class);
-    }
-
-    @Override
-    public void updateCachedItem(Attribute attribute) {
-        Attribute cachedAttribute = getById(attribute.getId());
-        cachedAttribute.setDescription(attribute.getDescription());
-        cachedAttribute.setAttribute(attribute.getAttribute());
-        cachedAttribute.setExpression(attribute.getExpression());
-        cachedAttribute.setType(attribute.getType());
-    }
-
-}
diff --git a/src/main/java/org/traccar/database/BaseObjectManager.java b/src/main/java/org/traccar/database/BaseObjectManager.java
deleted file mode 100644
index dd8b3bae4..000000000
--- a/src/main/java/org/traccar/database/BaseObjectManager.java
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
- * Copyright 2017 - 2020 Anton Tananaev (anton@traccar.org)
- * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.database;
-
-import java.util.Collection;
-import java.util.HashSet;
-import java.util.LinkedList;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.locks.ReadWriteLock;
-import java.util.concurrent.locks.ReentrantReadWriteLock;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.traccar.model.BaseModel;
-import org.traccar.storage.StorageException;
-
-public class BaseObjectManager<T extends BaseModel> {
-
-    private static final Logger LOGGER = LoggerFactory.getLogger(BaseObjectManager.class);
-
-    private final ReadWriteLock lock = new ReentrantReadWriteLock();
-
-    private final DataManager dataManager;
-
-    private final Class<T> baseClass;
-    private Map<Long, T> items;
-
-    protected BaseObjectManager(DataManager dataManager, Class<T> baseClass) {
-        this.dataManager = dataManager;
-        this.baseClass = baseClass;
-        refreshItems();
-    }
-
-    protected final void readLock() {
-        lock.readLock().lock();
-    }
-
-    protected final void readUnlock() {
-        lock.readLock().unlock();
-    }
-
-    protected final void writeLock() {
-        lock.writeLock().lock();
-    }
-
-    protected final void writeUnlock() {
-        lock.writeLock().unlock();
-    }
-
-    protected final DataManager getDataManager() {
-        return dataManager;
-    }
-
-    protected final Class<T> getBaseClass() {
-        return baseClass;
-    }
-
-    public T getById(long itemId) {
-        try {
-            readLock();
-            return items.get(itemId);
-        } finally {
-            readUnlock();
-        }
-    }
-
-    public void refreshItems() {
-        if (dataManager != null) {
-            try {
-                writeLock();
-                Collection<T> databaseItems = dataManager.getObjects(baseClass);
-                if (items == null) {
-                    items = new ConcurrentHashMap<>(databaseItems.size());
-                }
-                Set<Long> databaseItemIds = new HashSet<>();
-                for (T item : databaseItems) {
-                    databaseItemIds.add(item.getId());
-                    if (items.containsKey(item.getId())) {
-                        updateCachedItem(item);
-                    } else {
-                        addNewItem(item);
-                    }
-                }
-                for (Long cachedItemId : items.keySet()) {
-                    if (!databaseItemIds.contains(cachedItemId)) {
-                        removeCachedItem(cachedItemId);
-                    }
-                }
-            } catch (StorageException error) {
-                LOGGER.warn("Error refreshing items", error);
-            } finally {
-                writeUnlock();
-            }
-        }
-    }
-
-    protected void addNewItem(T item) {
-        try {
-            writeLock();
-            items.put(item.getId(), item);
-        } finally {
-            writeUnlock();
-        }
-    }
-
-    public void addItem(T item) throws StorageException {
-        dataManager.addObject(item);
-        addNewItem(item);
-    }
-
-    protected void updateCachedItem(T item) {
-        try {
-            writeLock();
-            items.put(item.getId(), item);
-        } finally {
-            writeUnlock();
-        }
-    }
-
-    public void updateItem(T item) throws StorageException {
-        dataManager.updateObject(item);
-        updateCachedItem(item);
-    }
-
-    protected void removeCachedItem(long itemId) {
-        try {
-            writeLock();
-            items.remove(itemId);
-        } finally {
-            writeUnlock();
-        }
-    }
-
-    public void removeItem(long itemId) throws StorageException {
-        BaseModel item = getById(itemId);
-        if (item != null) {
-            dataManager.removeObject(baseClass, itemId);
-            removeCachedItem(itemId);
-        }
-    }
-
-    public final Collection<T> getItems(Set<Long> itemIds) {
-        Collection<T> result = new LinkedList<>();
-        for (long itemId : itemIds) {
-            T item = getById(itemId);
-            if (item != null) {
-                result.add(item);
-            }
-        }
-        return result;
-    }
-
-    public Set<Long> getAllItems() {
-        try {
-            readLock();
-            return items.keySet();
-        } finally {
-            readUnlock();
-        }
-    }
-
-}
diff --git a/src/main/java/org/traccar/database/CommandsManager.java b/src/main/java/org/traccar/database/CommandsManager.java
index 843c89e82..fb8f2f9d6 100644
--- a/src/main/java/org/traccar/database/CommandsManager.java
+++ b/src/main/java/org/traccar/database/CommandsManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,177 +16,112 @@
  */
 package org.traccar.database;
 
-import java.lang.reflect.Field;
-import java.lang.reflect.Modifier;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.List;
-import java.util.Map;
-import java.util.Queue;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ConcurrentLinkedQueue;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 import org.traccar.BaseProtocol;
-import org.traccar.Context;
+import org.traccar.ServerManager;
+import org.traccar.broadcast.BroadcastInterface;
+import org.traccar.broadcast.BroadcastService;
 import org.traccar.model.Command;
-import org.traccar.model.Typed;
+import org.traccar.model.Device;
 import org.traccar.model.Position;
-
-public class CommandsManager  extends ExtendedObjectManager<Command> {
-
-    private static final Logger LOGGER = LoggerFactory.getLogger(CommandsManager.class);
-
-    private final Map<Long, Queue<Command>> deviceQueues = new ConcurrentHashMap<>();
-
-    private final boolean queueing;
-
-    public CommandsManager(DataManager dataManager, boolean queueing) {
-        super(dataManager, Command.class);
-        this.queueing = queueing;
-    }
-
-    public boolean checkDeviceCommand(long deviceId, long commandId) {
-        return !getAllDeviceItems(deviceId).contains(commandId);
+import org.traccar.model.QueuedCommand;
+import org.traccar.session.ConnectionManager;
+import org.traccar.session.DeviceSession;
+import org.traccar.sms.SmsManager;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Order;
+import org.traccar.storage.query.Request;
+
+import jakarta.annotation.Nullable;
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.util.Collection;
+import java.util.stream.Collectors;
+
+@Singleton
+public class CommandsManager implements BroadcastInterface {
+
+    private final Storage storage;
+    private final ServerManager serverManager;
+    private final SmsManager smsManager;
+    private final ConnectionManager connectionManager;
+    private final BroadcastService broadcastService;
+
+    @Inject
+    public CommandsManager(
+            Storage storage, ServerManager serverManager, @Nullable SmsManager smsManager,
+            ConnectionManager connectionManager, BroadcastService broadcastService) {
+        this.storage = storage;
+        this.serverManager = serverManager;
+        this.smsManager = smsManager;
+        this.connectionManager = connectionManager;
+        this.broadcastService = broadcastService;
+        broadcastService.registerListener(this);
     }
 
     public boolean sendCommand(Command command) throws Exception {
         long deviceId = command.getDeviceId();
-        if (command.getId() != 0) {
-            command = getById(command.getId()).clone();
-            command.setDeviceId(deviceId);
-        }
         if (command.getTextChannel()) {
-            Position lastPosition = Context.getIdentityManager().getLastPosition(deviceId);
-            String phone = Context.getIdentityManager().getById(deviceId).getPhone();
-            if (lastPosition != null) {
-                BaseProtocol protocol = Context.getServerManager().getProtocol(lastPosition.getProtocol());
-                protocol.sendTextCommand(phone, command);
+            if (smsManager == null) {
+                throw new RuntimeException("SMS not configured");
+            }
+            Device device = storage.getObject(Device.class, new Request(
+                    new Columns.Include("positionId", "phone"), new Condition.Equals("id", deviceId)));
+            Position position = storage.getObject(Position.class, new Request(
+                    new Columns.All(), new Condition.Equals("id", device.getPositionId())));
+            if (position != null) {
+                BaseProtocol protocol = serverManager.getProtocol(position.getProtocol());
+                protocol.sendTextCommand(device.getPhone(), command);
             } else if (command.getType().equals(Command.TYPE_CUSTOM)) {
-                if (Context.getSmsManager() != null) {
-                    Context.getSmsManager().sendMessageSync(phone, command.getString(Command.KEY_DATA), true);
-                } else {
-                    throw new RuntimeException("SMS is not enabled");
-                }
+                smsManager.sendMessage(device.getPhone(), command.getString(Command.KEY_DATA), true);
             } else {
                 throw new RuntimeException("Command " + command.getType() + " is not supported");
             }
         } else {
-            ActiveDevice activeDevice = Context.getConnectionManager().getActiveDevice(deviceId);
-            if (activeDevice != null) {
-                if (activeDevice.supportsLiveCommands()) {
-                    activeDevice.sendCommand(command);
-                } else {
-                    getDeviceQueue(deviceId).add(command);
-                    return false;
-                }
-            } else if (!queueing) {
-                throw new RuntimeException("Device is not online");
+            DeviceSession deviceSession = connectionManager.getDeviceSession(deviceId);
+            if (deviceSession != null && deviceSession.supportsLiveCommands()) {
+                deviceSession.sendCommand(command);
             } else {
-                getDeviceQueue(deviceId).add(command);
+                storage.addObject(QueuedCommand.fromCommand(command), new Request(new Columns.Exclude("id")));
+                broadcastService.updateCommand(true, deviceId);
                 return false;
             }
         }
         return true;
     }
 
-    public Collection<Long> getSupportedCommands(long deviceId) {
-        List<Long> result = new ArrayList<>();
-        Position lastPosition = Context.getIdentityManager().getLastPosition(deviceId);
-        for (long commandId : getAllDeviceItems(deviceId)) {
-            Command command = getById(commandId);
-            if (lastPosition != null) {
-                BaseProtocol protocol = Context.getServerManager().getProtocol(lastPosition.getProtocol());
-                if (command.getTextChannel() && protocol.getSupportedTextCommands().contains(command.getType())
-                        || !command.getTextChannel()
-                        && protocol.getSupportedDataCommands().contains(command.getType())) {
-                    result.add(commandId);
-                }
-            } else if (command.getType().equals(Command.TYPE_CUSTOM)) {
-                result.add(commandId);
-            }
-        }
-        return result;
-    }
-
-    public Collection<Typed> getCommandTypes(long deviceId, boolean textChannel) {
-        Position lastPosition = Context.getIdentityManager().getLastPosition(deviceId);
-        if (lastPosition != null) {
-            return getCommandTypes(lastPosition.getProtocol(), textChannel);
-        } else {
-            return Collections.singletonList(new Typed(Command.TYPE_CUSTOM));
-        }
-    }
-
-    public Collection<Typed> getCommandTypes(String protocolName, boolean textChannel) {
-        List<Typed> result = new ArrayList<>();
-        BaseProtocol protocol = Context.getServerManager().getProtocol(protocolName);
-        Collection<String> commands;
-        commands = textChannel ? protocol.getSupportedTextCommands() : protocol.getSupportedDataCommands();
-        for (String commandKey : commands) {
-            result.add(new Typed(commandKey));
-        }
-        return result;
-    }
-
-    public Collection<Typed> getAllCommandTypes() {
-        List<Typed> result = new ArrayList<>();
-        Field[] fields = Command.class.getDeclaredFields();
-        for (Field field : fields) {
-            if (Modifier.isStatic(field.getModifiers()) && field.getName().startsWith("TYPE_")) {
-                try {
-                    result.add(new Typed(field.get(null).toString()));
-                } catch (IllegalArgumentException | IllegalAccessException error) {
-                    LOGGER.warn("Get command types error", error);
-                }
-            }
-        }
-        return result;
-    }
-
-    private Queue<Command> getDeviceQueue(long deviceId) {
-        Queue<Command> deviceQueue;
-        try {
-            readLock();
-            deviceQueue = deviceQueues.get(deviceId);
-        } finally {
-            readUnlock();
-        }
-        if (deviceQueue != null) {
-            return deviceQueue;
-        } else {
-            try {
-                writeLock();
-                return deviceQueues.computeIfAbsent(deviceId, key -> new ConcurrentLinkedQueue<>());
-            } finally {
-                writeUnlock();
-            }
-        }
-    }
-
     public Collection<Command> readQueuedCommands(long deviceId) {
         return readQueuedCommands(deviceId, Integer.MAX_VALUE);
     }
 
     public Collection<Command> readQueuedCommands(long deviceId, int count) {
-        Queue<Command> deviceQueue;
         try {
-            readLock();
-            deviceQueue = deviceQueues.get(deviceId);
-        } finally {
-            readUnlock();
+            var commands = storage.getObjects(QueuedCommand.class, new Request(
+                    new Columns.All(),
+                    new Condition.Equals("deviceId", deviceId),
+                    new Order("id", false, count)));
+            for (var command : commands) {
+                storage.removeObject(QueuedCommand.class, new Request(
+                        new Condition.Equals("id", command.getId())));
+            }
+            return commands.stream().map(QueuedCommand::toCommand).collect(Collectors.toList());
+        } catch (StorageException e) {
+            throw new RuntimeException(e);
         }
-        Collection<Command> result = new ArrayList<>();
-        if (deviceQueue != null) {
-            Command command = deviceQueue.poll();
-            while (command != null && result.size() < count) {
-                result.add(command);
-                command = deviceQueue.poll();
+    }
+
+    @Override
+    public void updateCommand(boolean local, long deviceId) {
+        if (!local) {
+            DeviceSession deviceSession = connectionManager.getDeviceSession(deviceId);
+            if (deviceSession != null && deviceSession.supportsLiveCommands()) {
+                for (Command command : readQueuedCommands(deviceId)) {
+                    deviceSession.sendCommand(command);
+                }
             }
         }
-        return result;
     }
 
 }
diff --git a/src/main/java/org/traccar/database/ConnectionManager.java b/src/main/java/org/traccar/database/ConnectionManager.java
deleted file mode 100644
index 359061f00..000000000
--- a/src/main/java/org/traccar/database/ConnectionManager.java
+++ /dev/null
@@ -1,216 +0,0 @@
-/*
- * Copyright 2015 - 2020 Anton Tananaev (anton@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.database;
-
-import io.netty.channel.Channel;
-import io.netty.util.Timeout;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.traccar.Context;
-import org.traccar.GlobalTimer;
-import org.traccar.Main;
-import org.traccar.Protocol;
-import org.traccar.config.Keys;
-import org.traccar.handler.events.MotionEventHandler;
-import org.traccar.handler.events.OverspeedEventHandler;
-import org.traccar.model.Device;
-import org.traccar.model.DeviceState;
-import org.traccar.model.Event;
-import org.traccar.model.Position;
-import org.traccar.storage.StorageException;
-
-import java.net.SocketAddress;
-import java.util.Date;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.TimeUnit;
-
-public class ConnectionManager {
-
-    private static final Logger LOGGER = LoggerFactory.getLogger(ConnectionManager.class);
-
-    private final long deviceTimeout;
-    private final boolean updateDeviceState;
-
-    private final Map<Long, ActiveDevice> activeDevices = new ConcurrentHashMap<>();
-    private final Map<Long, Set<UpdateListener>> listeners = new ConcurrentHashMap<>();
-    private final Map<Long, Timeout> timeouts = new ConcurrentHashMap<>();
-
-    public ConnectionManager() {
-        deviceTimeout = Context.getConfig().getLong(Keys.STATUS_TIMEOUT) * 1000;
-        updateDeviceState = Context.getConfig().getBoolean(Keys.STATUS_UPDATE_DEVICE_STATE);
-    }
-
-    public void addActiveDevice(long deviceId, Protocol protocol, Channel channel, SocketAddress remoteAddress) {
-        activeDevices.put(deviceId, new ActiveDevice(deviceId, protocol, channel, remoteAddress));
-    }
-
-    public void removeActiveDevice(Channel channel) {
-        for (ActiveDevice activeDevice : activeDevices.values()) {
-            if (activeDevice.getChannel() == channel) {
-                updateDevice(activeDevice.getDeviceId(), Device.STATUS_OFFLINE, null);
-                activeDevices.remove(activeDevice.getDeviceId());
-                break;
-            }
-        }
-    }
-
-    public ActiveDevice getActiveDevice(long deviceId) {
-        return activeDevices.get(deviceId);
-    }
-
-    public void updateDevice(final long deviceId, String status, Date time) {
-        Device device = Context.getIdentityManager().getById(deviceId);
-        if (device == null) {
-            return;
-        }
-
-        String oldStatus = device.getStatus();
-        device.setStatus(status);
-
-        if (!status.equals(oldStatus)) {
-            String eventType;
-            Map<Event, Position> events = new HashMap<>();
-            switch (status) {
-                case Device.STATUS_ONLINE:
-                    eventType = Event.TYPE_DEVICE_ONLINE;
-                    break;
-                case Device.STATUS_UNKNOWN:
-                    eventType = Event.TYPE_DEVICE_UNKNOWN;
-                    if (updateDeviceState) {
-                        events.putAll(updateDeviceState(deviceId));
-                    }
-                    break;
-                default:
-                    eventType = Event.TYPE_DEVICE_OFFLINE;
-                    if (updateDeviceState) {
-                        events.putAll(updateDeviceState(deviceId));
-                    }
-                    break;
-            }
-            events.put(new Event(eventType, deviceId), null);
-            Context.getNotificationManager().updateEvents(events);
-        }
-
-        Timeout timeout = timeouts.remove(deviceId);
-        if (timeout != null) {
-            timeout.cancel();
-        }
-
-        if (time != null) {
-            device.setLastUpdate(time);
-        }
-
-        if (status.equals(Device.STATUS_ONLINE)) {
-            timeouts.put(deviceId, GlobalTimer.getTimer().newTimeout(timeout1 -> {
-                if (!timeout1.isCancelled()) {
-                    updateDevice(deviceId, Device.STATUS_UNKNOWN, null);
-                }
-            }, deviceTimeout, TimeUnit.MILLISECONDS));
-        }
-
-        try {
-            Context.getDeviceManager().updateDeviceStatus(device);
-        } catch (StorageException e) {
-            LOGGER.warn("Update device status error", e);
-        }
-
-        updateDevice(device);
-    }
-
-    public Map<Event, Position> updateDeviceState(long deviceId) {
-        DeviceState deviceState = Context.getDeviceManager().getDeviceState(deviceId);
-        Map<Event, Position> result = new HashMap<>();
-
-        Map<Event, Position> event = Main.getInjector()
-                .getInstance(MotionEventHandler.class).updateMotionState(deviceState);
-        if (event != null) {
-            result.putAll(event);
-        }
-
-        event = Main.getInjector().getInstance(OverspeedEventHandler.class)
-                .updateOverspeedState(deviceState, Context.getDeviceManager().
-                        lookupAttributeDouble(deviceId, OverspeedEventHandler.ATTRIBUTE_SPEED_LIMIT, 0, true, false));
-        if (event != null) {
-            result.putAll(event);
-        }
-
-        return result;
-    }
-
-    public synchronized void sendKeepalive() {
-        for (Set<UpdateListener> userListeners : listeners.values()) {
-            for (UpdateListener listener : userListeners) {
-                listener.onKeepalive();
-            }
-        }
-    }
-
-    public synchronized void updateDevice(Device device) {
-        for (long userId : Context.getPermissionsManager().getDeviceUsers(device.getId())) {
-            if (listeners.containsKey(userId)) {
-                for (UpdateListener listener : listeners.get(userId)) {
-                    listener.onUpdateDevice(device);
-                }
-            }
-        }
-    }
-
-    public synchronized void updatePosition(Position position) {
-        long deviceId = position.getDeviceId();
-
-        for (long userId : Context.getPermissionsManager().getDeviceUsers(deviceId)) {
-            if (listeners.containsKey(userId)) {
-                for (UpdateListener listener : listeners.get(userId)) {
-                    listener.onUpdatePosition(position);
-                }
-            }
-        }
-    }
-
-    public synchronized void updateEvent(long userId, Event event) {
-        if (listeners.containsKey(userId)) {
-            for (UpdateListener listener : listeners.get(userId)) {
-                listener.onUpdateEvent(event);
-            }
-        }
-    }
-
-    public interface UpdateListener {
-        void onKeepalive();
-        void onUpdateDevice(Device device);
-        void onUpdatePosition(Position position);
-        void onUpdateEvent(Event event);
-    }
-
-    public synchronized void addListener(long userId, UpdateListener listener) {
-        if (!listeners.containsKey(userId)) {
-            listeners.put(userId, new HashSet<>());
-        }
-        listeners.get(userId).add(listener);
-    }
-
-    public synchronized void removeListener(long userId, UpdateListener listener) {
-        if (!listeners.containsKey(userId)) {
-            listeners.put(userId, new HashSet<>());
-        }
-        listeners.get(userId).remove(listener);
-    }
-
-}
diff --git a/src/main/java/org/traccar/database/DataManager.java b/src/main/java/org/traccar/database/DataManager.java
deleted file mode 100644
index 9ac808a69..000000000
--- a/src/main/java/org/traccar/database/DataManager.java
+++ /dev/null
@@ -1,276 +0,0 @@
-/*
- * Copyright 2012 - 2022 Anton Tananaev (anton@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.database;
-
-import com.zaxxer.hikari.HikariConfig;
-import com.zaxxer.hikari.HikariDataSource;
-import liquibase.Contexts;
-import liquibase.Liquibase;
-import liquibase.database.Database;
-import liquibase.database.DatabaseFactory;
-import liquibase.exception.LiquibaseException;
-import liquibase.resource.FileSystemResourceAccessor;
-import liquibase.resource.ResourceAccessor;
-import org.traccar.Context;
-import org.traccar.config.Config;
-import org.traccar.config.Keys;
-import org.traccar.model.BaseModel;
-import org.traccar.model.Device;
-import org.traccar.model.Event;
-import org.traccar.model.Permission;
-import org.traccar.model.Position;
-import org.traccar.model.Server;
-import org.traccar.model.Statistics;
-import org.traccar.model.User;
-import org.traccar.storage.DatabaseStorage;
-import org.traccar.storage.Storage;
-import org.traccar.storage.StorageException;
-import org.traccar.storage.query.Columns;
-import org.traccar.storage.query.Condition;
-import org.traccar.storage.query.Limit;
-import org.traccar.storage.query.Order;
-import org.traccar.storage.query.Request;
-
-import javax.sql.DataSource;
-import java.io.File;
-import java.lang.reflect.Method;
-import java.net.URL;
-import java.util.Collection;
-import java.util.Date;
-import java.util.LinkedList;
-import java.util.List;
-
-public class DataManager {
-
-    private final Config config;
-
-    private DataSource dataSource;
-
-    public DataSource getDataSource() {
-        return dataSource;
-    }
-
-    private final Storage storage;
-
-    public Storage getStorage() {
-        return storage;
-    }
-
-    private final boolean forceLdap;
-
-    public DataManager(Config config) throws Exception {
-        this.config = config;
-
-        forceLdap = config.getBoolean(Keys.LDAP_FORCE);
-
-        initDatabase();
-        initDatabaseSchema();
-
-        storage = new DatabaseStorage(dataSource);
-    }
-
-    private void initDatabase() throws Exception {
-
-        String driverFile = config.getString(Keys.DATABASE_DRIVER_FILE);
-        if (driverFile != null) {
-            ClassLoader classLoader = ClassLoader.getSystemClassLoader();
-            try {
-                Method method = classLoader.getClass().getDeclaredMethod("addURL", URL.class);
-                method.setAccessible(true);
-                method.invoke(classLoader, new File(driverFile).toURI().toURL());
-            } catch (NoSuchMethodException e) {
-                Method method = classLoader.getClass()
-                        .getDeclaredMethod("appendToClassPathForInstrumentation", String.class);
-                method.setAccessible(true);
-                method.invoke(classLoader, driverFile);
-            }
-        }
-
-        String driver = config.getString(Keys.DATABASE_DRIVER);
-        if (driver != null) {
-            Class.forName(driver);
-        }
-
-        HikariConfig hikariConfig = new HikariConfig();
-        hikariConfig.setDriverClassName(driver);
-        hikariConfig.setJdbcUrl(config.getString(Keys.DATABASE_URL));
-        hikariConfig.setUsername(config.getString(Keys.DATABASE_USER));
-        hikariConfig.setPassword(config.getString(Keys.DATABASE_PASSWORD));
-        hikariConfig.setConnectionInitSql(config.getString(Keys.DATABASE_CHECK_CONNECTION));
-        hikariConfig.setIdleTimeout(600000);
-
-        int maxPoolSize = config.getInteger(Keys.DATABASE_MAX_POOL_SIZE);
-        if (maxPoolSize != 0) {
-            hikariConfig.setMaximumPoolSize(maxPoolSize);
-        }
-
-        dataSource = new HikariDataSource(hikariConfig);
-    }
-
-    private void initDatabaseSchema() throws LiquibaseException {
-
-        if (config.hasKey(Keys.DATABASE_CHANGELOG)) {
-
-            ResourceAccessor resourceAccessor = new FileSystemResourceAccessor(new File("."));
-
-            Database database = DatabaseFactory.getInstance().openDatabase(
-                    config.getString(Keys.DATABASE_URL),
-                    config.getString(Keys.DATABASE_USER),
-                    config.getString(Keys.DATABASE_PASSWORD),
-                    config.getString(Keys.DATABASE_DRIVER),
-                    null, null, null, resourceAccessor);
-
-            Liquibase liquibase = new Liquibase(
-                    config.getString(Keys.DATABASE_CHANGELOG), resourceAccessor, database);
-
-            liquibase.clearCheckSums();
-
-            liquibase.update(new Contexts());
-        }
-    }
-
-    public User login(String email, String password) throws StorageException {
-        User user = storage.getObject(User.class, new Request(
-                new Columns.Include("id", "login", "hashedPassword", "salt"),
-                new Condition.Or(
-                        new Condition.Equals("email", "email", email.trim()),
-                        new Condition.Equals("login", "email"))));
-        LdapProvider ldapProvider = Context.getLdapProvider();
-        if (user != null) {
-            if (ldapProvider != null && user.getLogin() != null && ldapProvider.login(user.getLogin(), password)
-                    || !forceLdap && user.isPasswordValid(password)) {
-                return user;
-            }
-        } else {
-            if (ldapProvider != null && ldapProvider.login(email, password)) {
-                user = ldapProvider.getUser(email);
-                Context.getUsersManager().addItem(user);
-                return user;
-            }
-        }
-        return null;
-    }
-
-    public void updateUserPassword(User user) throws StorageException {
-        storage.updateObject(user, new Request(
-                new Columns.Include("hashedPassword", "salt"),
-                new Condition.Equals("id", "id")));
-    }
-
-    public void updateDeviceStatus(Device device) throws StorageException {
-        storage.updateObject(device, new Request(
-                new Columns.Include("lastUpdate"),
-                new Condition.Equals("id", "id")));
-    }
-
-    public Collection<Position> getPositions(long deviceId, Date from, Date to) throws StorageException {
-        return storage.getObjects(Position.class, new Request(
-                new Columns.All(),
-                new Condition.And(
-                        new Condition.Equals("deviceId", "deviceId", deviceId),
-                        new Condition.Between("fixTime", "from", from, "to", to)),
-                new Order("fixTime")));
-    }
-
-    public Position getPrecedingPosition(long deviceId, Date date) throws StorageException {
-        return storage.getObject(Position.class, new Request(
-                new Columns.All(),
-                new Condition.And(
-                        new Condition.Equals("deviceId", "deviceId", deviceId),
-                        new Condition.Compare("fixTime", "<=", "time", date)),
-                new Order(true, "fixTime"),
-                new Limit(1)));
-    }
-
-    public void updateLatestPosition(Position position) throws StorageException {
-        Device device = new Device();
-        device.setId(position.getDeviceId());
-        device.setPositionId(position.getId());
-        storage.updateObject(device, new Request(
-                new Columns.Include("positionId"),
-                new Condition.Equals("id", "id")));
-    }
-
-    public Collection<Position> getLatestPositions() throws StorageException {
-        List<Position> positions = new LinkedList<>();
-        List<Device> devices = storage.getObjects(Device.class, new Request(new Columns.Include("positionId")));
-        for (Device device : devices) {
-            positions.addAll(storage.getObjects(Position.class, new Request(
-                    new Columns.All(),
-                    new Condition.Equals("id", "id", device.getPositionId()))));
-        }
-        return positions;
-    }
-
-    public Server getServer() throws StorageException {
-        return storage.getObject(Server.class, new Request(new Columns.All()));
-    }
-
-    public Collection<Event> getEvents(long deviceId, Date from, Date to) throws StorageException {
-        return storage.getObjects(Event.class, new Request(
-                new Columns.All(),
-                new Condition.And(
-                        new Condition.Equals("deviceId", "deviceId", deviceId),
-                        new Condition.Between("eventTime", "from", from, "to", to)),
-                new Order("eventTime")));
-    }
-
-    public Collection<Statistics> getStatistics(Date from, Date to) throws StorageException {
-        return storage.getObjects(Statistics.class, new Request(
-                new Columns.All(),
-                new Condition.Between("captureTime", "from", from, "to", to),
-                new Order("captureTime")));
-    }
-
-    public Collection<Permission> getPermissions(Class<? extends BaseModel> owner, Class<? extends BaseModel> property)
-            throws StorageException, ClassNotFoundException {
-        return storage.getPermissions(owner, property);
-    }
-
-    public void linkObject(Class<?> owner, long ownerId, Class<?> property, long propertyId, boolean link)
-            throws StorageException {
-        if (link) {
-            storage.addPermission(new Permission(owner, ownerId, property, propertyId));
-        } else {
-            storage.removePermission(new Permission(owner, ownerId, property, propertyId));
-        }
-    }
-
-    public <T extends BaseModel> T getObject(Class<T> clazz, long entityId) throws StorageException {
-        return storage.getObject(clazz, new Request(
-                new Columns.All(),
-                new Condition.Equals("id", "id", entityId)));
-    }
-
-    public <T extends BaseModel> Collection<T> getObjects(Class<T> clazz) throws StorageException {
-        return storage.getObjects(clazz, new Request(new Columns.All()));
-    }
-
-    public void addObject(BaseModel entity) throws StorageException {
-        entity.setId(storage.addObject(entity, new Request(new Columns.Exclude("id"))));
-    }
-
-    public void updateObject(BaseModel entity) throws StorageException {
-        storage.updateObject(entity, new Request(
-                new Columns.Exclude("id"),
-                new Condition.Equals("id", "id")));
-    }
-
-    public void removeObject(Class<? extends BaseModel> clazz, long entityId) throws StorageException {
-        storage.removeObject(clazz, new Request(new Condition.Equals("id", "id", entityId)));
-    }
-
-}
diff --git a/src/main/java/org/traccar/database/DeviceLookupService.java b/src/main/java/org/traccar/database/DeviceLookupService.java
new file mode 100644
index 000000000..6ec6841a1
--- /dev/null
+++ b/src/main/java/org/traccar/database/DeviceLookupService.java
@@ -0,0 +1,141 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.database;
+
+import io.netty.util.Timeout;
+import io.netty.util.Timer;
+import io.netty.util.TimerTask;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.model.Device;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.TimeUnit;
+
+@Singleton
+public class DeviceLookupService {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(DeviceLookupService.class);
+
+    private static final long INFO_TIMEOUT_MS = TimeUnit.MINUTES.toMillis(60);
+    private static final long THROTTLE_MIN_MS = TimeUnit.MINUTES.toMillis(1);
+    private static final long THROTTLE_MAX_MS = TimeUnit.MINUTES.toMillis(30);
+
+    private final Storage storage;
+    private final Timer timer;
+
+    private final boolean throttlingEnabled;
+
+    private static class IdentifierInfo {
+        private long lastQuery;
+        private long delay;
+        private Timeout timeout;
+    }
+
+    private final class IdentifierTask implements TimerTask {
+        private final String uniqueId;
+
+        private IdentifierTask(String uniqueId) {
+            this.uniqueId = uniqueId;
+        }
+
+        @Override
+        public void run(Timeout timeout) {
+            LOGGER.debug("Device lookup expired {}", uniqueId);
+            synchronized (DeviceLookupService.this) {
+                identifierMap.remove(uniqueId);
+            }
+        }
+    }
+
+    private final Map<String, IdentifierInfo> identifierMap = new ConcurrentHashMap<>();
+
+    @Inject
+    public DeviceLookupService(Config config, Storage storage, Timer timer) {
+        this.storage = storage;
+        this.timer = timer;
+        throttlingEnabled = config.getBoolean(Keys.DATABASE_THROTTLE_UNKNOWN);
+    }
+
+    private synchronized boolean isThrottled(String uniqueId) {
+        if (throttlingEnabled) {
+            IdentifierInfo info = identifierMap.get(uniqueId);
+            return info != null && System.currentTimeMillis() < info.lastQuery + info.delay;
+        } else {
+            return false;
+        }
+    }
+
+    private synchronized void lookupSucceeded(String uniqueId) {
+        if (throttlingEnabled) {
+            IdentifierInfo info = identifierMap.remove(uniqueId);
+            if (info != null) {
+                info.timeout.cancel();
+            }
+        }
+    }
+
+    private synchronized void lookupFailed(String uniqueId) {
+        if (throttlingEnabled) {
+            IdentifierInfo info = identifierMap.get(uniqueId);
+            if (info != null) {
+                info.timeout.cancel();
+                info.delay = Math.min(info.delay * 2, THROTTLE_MAX_MS);
+            } else {
+                info = new IdentifierInfo();
+                identifierMap.put(uniqueId, info);
+                info.delay = THROTTLE_MIN_MS;
+            }
+            info.lastQuery = System.currentTimeMillis();
+            info.timeout = timer.newTimeout(new IdentifierTask(uniqueId), INFO_TIMEOUT_MS, TimeUnit.MILLISECONDS);
+            LOGGER.debug("Device lookup {} throttled for {} ms", uniqueId, info.delay);
+        }
+    }
+
+    public Device lookup(String[] uniqueIds) {
+        Device device = null;
+        try {
+            for (String uniqueId : uniqueIds) {
+                if (!isThrottled(uniqueId)) {
+                    device = storage.getObject(Device.class, new Request(
+                            new Columns.All(), new Condition.Equals("uniqueId", uniqueId)));
+                    if (device != null) {
+                        lookupSucceeded(uniqueId);
+                        break;
+                    } else {
+                        lookupFailed(uniqueId);
+                    }
+                } else {
+                    LOGGER.debug("Device lookup throttled {}", uniqueId);
+                }
+            }
+        } catch (StorageException e) {
+            LOGGER.warn("Find device error", e);
+        }
+        return device;
+    }
+
+}
diff --git a/src/main/java/org/traccar/database/DeviceManager.java b/src/main/java/org/traccar/database/DeviceManager.java
deleted file mode 100644
index 40591e869..000000000
--- a/src/main/java/org/traccar/database/DeviceManager.java
+++ /dev/null
@@ -1,471 +0,0 @@
-/*
- * Copyright 2016 - 2020 Anton Tananaev (anton@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.database;
-
-import java.sql.SQLException;
-import java.util.Collection;
-import java.util.HashSet;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.atomic.AtomicLong;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.traccar.config.Config;
-import org.traccar.Context;
-import org.traccar.config.Keys;
-import org.traccar.model.Command;
-import org.traccar.model.Device;
-import org.traccar.model.DeviceState;
-import org.traccar.model.DeviceAccumulators;
-import org.traccar.model.Group;
-import org.traccar.model.Position;
-import org.traccar.model.Server;
-import org.traccar.storage.StorageException;
-
-public class DeviceManager extends BaseObjectManager<Device> implements IdentityManager, ManagableObjects {
-
-    private static final Logger LOGGER = LoggerFactory.getLogger(DeviceManager.class);
-
-    private final Config config;
-    private final long dataRefreshDelay;
-
-    private Map<String, Device> devicesByUniqueId;
-    private Map<String, Device> devicesByPhone;
-    private final AtomicLong devicesLastUpdate = new AtomicLong();
-
-    private final Map<Long, Position> positions = new ConcurrentHashMap<>();
-
-    private final Map<Long, DeviceState> deviceStates = new ConcurrentHashMap<>();
-
-    public DeviceManager(DataManager dataManager) {
-        super(dataManager, Device.class);
-        this.config = Context.getConfig();
-        try {
-            writeLock();
-            if (devicesByPhone == null) {
-                devicesByPhone = new ConcurrentHashMap<>();
-            }
-            if (devicesByUniqueId == null) {
-                devicesByUniqueId = new ConcurrentHashMap<>();
-            }
-        } finally {
-            writeUnlock();
-        }
-        dataRefreshDelay = config.getLong(Keys.DATABASE_REFRESH_DELAY) * 1000;
-        refreshLastPositions();
-    }
-
-    @Override
-    public long addUnknownDevice(String uniqueId) {
-        Device device = new Device();
-        device.setName(uniqueId);
-        device.setUniqueId(uniqueId);
-        device.setCategory(Context.getConfig().getString(Keys.DATABASE_REGISTER_UNKNOWN_DEFAULT_CATEGORY));
-
-        long defaultGroupId = Context.getConfig().getLong(Keys.DATABASE_REGISTER_UNKNOWN_DEFAULT_GROUP_ID);
-        if (defaultGroupId != 0) {
-            device.setGroupId(defaultGroupId);
-        }
-
-        try {
-            addItem(device);
-
-            LOGGER.info("Automatically registered device " + uniqueId);
-
-            if (defaultGroupId != 0) {
-                Context.getPermissionsManager().refreshDeviceAndGroupPermissions();
-                Context.getPermissionsManager().refreshAllExtendedPermissions();
-            }
-
-            return device.getId();
-        } catch (StorageException e) {
-            LOGGER.warn("Automatic device registration error", e);
-            return 0;
-        }
-    }
-
-    public void updateDeviceCache(boolean force) {
-        long lastUpdate = devicesLastUpdate.get();
-        if ((force || System.currentTimeMillis() - lastUpdate > dataRefreshDelay)
-                && devicesLastUpdate.compareAndSet(lastUpdate, System.currentTimeMillis())) {
-            refreshItems();
-        }
-    }
-
-    @Override
-    public Device getByUniqueId(String uniqueId) throws SQLException {
-        boolean forceUpdate;
-        try {
-            readLock();
-            forceUpdate = !devicesByUniqueId.containsKey(uniqueId) && !config.getBoolean(Keys.DATABASE_IGNORE_UNKNOWN);
-        } finally {
-            readUnlock();
-        }
-        updateDeviceCache(forceUpdate);
-        try {
-            readLock();
-            return devicesByUniqueId.get(uniqueId);
-        } finally {
-            readUnlock();
-        }
-    }
-
-    @Override
-    public String getDevicePassword(long id, String protocol, String defaultPassword) {
-
-        String password = lookupAttributeString(id, Command.KEY_DEVICE_PASSWORD, null, false, false);
-        if (password != null) {
-            return password;
-        }
-
-        if (protocol != null) {
-            password = Context.getConfig().getString(Keys.PROTOCOL_DEVICE_PASSWORD.withPrefix(protocol));
-            if (password != null) {
-                return password;
-            }
-        }
-
-        return defaultPassword;
-    }
-
-    @Override
-    public Set<Long> getAllItems() {
-        Set<Long> result = super.getAllItems();
-        if (result.isEmpty()) {
-            updateDeviceCache(true);
-            result = super.getAllItems();
-        }
-        return result;
-    }
-
-    public Collection<Device> getAllDevices() {
-        return getItems(getAllItems());
-    }
-
-    public Set<Long> getAllUserItems(long userId) {
-        return Context.getPermissionsManager().getDevicePermissions(userId);
-    }
-
-    @Override
-    public Set<Long> getUserItems(long userId) {
-        if (Context.getPermissionsManager() != null) {
-            Set<Long> result = new HashSet<>();
-            for (long deviceId : Context.getPermissionsManager().getDevicePermissions(userId)) {
-                Device device = getById(deviceId);
-                if (device != null && !device.getDisabled()) {
-                    result.add(deviceId);
-                }
-            }
-            return result;
-        } else {
-            return new HashSet<>();
-        }
-    }
-
-    public Set<Long> getAllManagedItems(long userId) {
-        Set<Long> result = new HashSet<>(getAllUserItems(userId));
-        for (long managedUserId : Context.getUsersManager().getUserItems(userId)) {
-            result.addAll(getAllUserItems(managedUserId));
-        }
-        return result;
-    }
-
-    @Override
-    public Set<Long> getManagedItems(long userId) {
-        Set<Long> result = new HashSet<>(getUserItems(userId));
-        for (long managedUserId : Context.getUsersManager().getUserItems(userId)) {
-            result.addAll(getUserItems(managedUserId));
-        }
-        return result;
-    }
-
-    private void addByUniqueId(Device device) {
-        try {
-            writeLock();
-            if (devicesByUniqueId == null) {
-                devicesByUniqueId = new ConcurrentHashMap<>();
-            }
-            devicesByUniqueId.put(device.getUniqueId(), device);
-        } finally {
-            writeUnlock();
-        }
-    }
-
-    private void removeByUniqueId(String deviceUniqueId) {
-        try {
-            writeLock();
-            if (devicesByUniqueId != null) {
-                devicesByUniqueId.remove(deviceUniqueId);
-            }
-        } finally {
-            writeUnlock();
-        }
-    }
-
-    private void addByPhone(Device device) {
-        try {
-            writeLock();
-            if (devicesByPhone == null) {
-                devicesByPhone = new ConcurrentHashMap<>();
-            }
-            devicesByPhone.put(device.getPhone(), device);
-        } finally {
-            writeUnlock();
-        }
-    }
-
-    private void removeByPhone(String phone) {
-        if (phone == null || phone.isEmpty()) {
-            return;
-        }
-        try {
-            writeLock();
-            if (devicesByPhone != null) {
-                devicesByPhone.remove(phone);
-            }
-        } finally {
-            writeUnlock();
-        }
-    }
-
-    @Override
-    protected void addNewItem(Device device) {
-        super.addNewItem(device);
-        addByUniqueId(device);
-        if (device.getPhone() != null  && !device.getPhone().isEmpty()) {
-            addByPhone(device);
-        }
-        if (Context.getGeofenceManager() != null) {
-            Position lastPosition = getLastPosition(device.getId());
-            if (lastPosition != null) {
-                device.setGeofenceIds(Context.getGeofenceManager().getCurrentDeviceGeofences(lastPosition));
-            }
-        }
-    }
-
-    @Override
-    protected void updateCachedItem(Device device) {
-        Device cachedDevice = getById(device.getId());
-        cachedDevice.setName(device.getName());
-        cachedDevice.setGroupId(device.getGroupId());
-        cachedDevice.setCategory(device.getCategory());
-        cachedDevice.setContact(device.getContact());
-        cachedDevice.setModel(device.getModel());
-        cachedDevice.setDisabled(device.getDisabled());
-        cachedDevice.setAttributes(device.getAttributes());
-        if (!device.getUniqueId().equals(cachedDevice.getUniqueId())) {
-            removeByUniqueId(cachedDevice.getUniqueId());
-            cachedDevice.setUniqueId(device.getUniqueId());
-            addByUniqueId(cachedDevice);
-        }
-        if (device.getPhone() != null && !device.getPhone().isEmpty()
-                && !device.getPhone().equals(cachedDevice.getPhone())) {
-            String phone = cachedDevice.getPhone();
-            removeByPhone(phone);
-            cachedDevice.setPhone(device.getPhone());
-            addByPhone(cachedDevice);
-        }
-    }
-
-    @Override
-    protected void removeCachedItem(long deviceId) {
-        Device cachedDevice = getById(deviceId);
-        if (cachedDevice != null) {
-            String deviceUniqueId = cachedDevice.getUniqueId();
-            String phone = cachedDevice.getPhone();
-            super.removeCachedItem(deviceId);
-            removeByUniqueId(deviceUniqueId);
-            removeByPhone(phone);
-        }
-        positions.remove(deviceId);
-    }
-
-    public void updateDeviceStatus(Device device) throws StorageException {
-        getDataManager().updateDeviceStatus(device);
-        Device cachedDevice = getById(device.getId());
-        if (cachedDevice != null) {
-            cachedDevice.setStatus(device.getStatus());
-        }
-    }
-
-    private void refreshLastPositions() {
-        if (getDataManager() != null) {
-            try {
-                for (Position position : getDataManager().getLatestPositions()) {
-                    positions.put(position.getDeviceId(), position);
-                }
-            } catch (StorageException error) {
-                LOGGER.warn("Load latest positions error", error);
-            }
-        }
-    }
-
-    public boolean isLatestPosition(Position position) {
-        Position lastPosition = getLastPosition(position.getDeviceId());
-        return lastPosition == null || position.getFixTime().compareTo(lastPosition.getFixTime()) >= 0;
-    }
-
-    public void updateLatestPosition(Position position) throws StorageException {
-
-        if (isLatestPosition(position)) {
-
-            getDataManager().updateLatestPosition(position);
-
-            Device device = getById(position.getDeviceId());
-            if (device != null) {
-                device.setPositionId(position.getId());
-            }
-
-            positions.put(position.getDeviceId(), position);
-
-            if (Context.getConnectionManager() != null) {
-                Context.getConnectionManager().updatePosition(position);
-            }
-        }
-    }
-
-    @Override
-    public Position getLastPosition(long deviceId) {
-        return positions.get(deviceId);
-    }
-
-    public Collection<Position> getInitialState(long userId) {
-
-        List<Position> result = new LinkedList<>();
-
-        if (Context.getPermissionsManager() != null) {
-            for (long deviceId : Context.getPermissionsManager().getUserAdmin(userId)
-                    ? getAllUserItems(userId) : getUserItems(userId)) {
-                if (positions.containsKey(deviceId)) {
-                    result.add(positions.get(deviceId));
-                }
-            }
-        }
-
-        return result;
-    }
-
-    @Override
-    public boolean lookupAttributeBoolean(
-            long deviceId, String attributeName, boolean defaultValue, boolean lookupServer, boolean lookupConfig) {
-        Object result = lookupAttribute(deviceId, attributeName, lookupServer, lookupConfig);
-        if (result != null) {
-            return result instanceof String ? Boolean.parseBoolean((String) result) : (Boolean) result;
-        }
-        return defaultValue;
-    }
-
-    @Override
-    public String lookupAttributeString(
-            long deviceId, String attributeName, String defaultValue, boolean lookupServer, boolean lookupConfig) {
-        Object result = lookupAttribute(deviceId, attributeName, lookupServer, lookupConfig);
-        return result != null ? (String) result : defaultValue;
-    }
-
-    @Override
-    public int lookupAttributeInteger(
-            long deviceId, String attributeName, int defaultValue, boolean lookupServer, boolean lookupConfig) {
-        Object result = lookupAttribute(deviceId, attributeName, lookupServer, lookupConfig);
-        if (result != null) {
-            return result instanceof String ? Integer.parseInt((String) result) : ((Number) result).intValue();
-        }
-        return defaultValue;
-    }
-
-    @Override
-    public long lookupAttributeLong(
-            long deviceId, String attributeName, long defaultValue, boolean lookupServer, boolean lookupConfig) {
-        Object result = lookupAttribute(deviceId, attributeName, lookupServer, lookupConfig);
-        if (result != null) {
-            return result instanceof String ? Long.parseLong((String) result) : ((Number) result).longValue();
-        }
-        return defaultValue;
-    }
-
-    public double lookupAttributeDouble(
-            long deviceId, String attributeName, double defaultValue, boolean lookupServer, boolean lookupConfig) {
-        Object result = lookupAttribute(deviceId, attributeName, lookupServer, lookupConfig);
-        if (result != null) {
-            return result instanceof String ? Double.parseDouble((String) result) : ((Number) result).doubleValue();
-        }
-        return defaultValue;
-    }
-
-    private Object lookupAttribute(long deviceId, String attributeName, boolean lookupServer, boolean lookupConfig) {
-        Object result = null;
-        Device device = getById(deviceId);
-        if (device != null) {
-            result = device.getAttributes().get(attributeName);
-            if (result == null) {
-                long groupId = device.getGroupId();
-                while (groupId != 0) {
-                    Group group = Context.getGroupsManager().getById(groupId);
-                    if (group != null) {
-                        result = group.getAttributes().get(attributeName);
-                        if (result != null) {
-                            break;
-                        }
-                        groupId = group.getGroupId();
-                    } else {
-                        groupId = 0;
-                    }
-                }
-            }
-            if (result == null && lookupServer) {
-                Server server = Context.getPermissionsManager().getServer();
-                result = server.getAttributes().get(attributeName);
-            }
-            if (result == null && lookupConfig) {
-                result = Context.getConfig().getString(attributeName);
-            }
-        }
-        return result;
-    }
-
-    public void resetDeviceAccumulators(DeviceAccumulators deviceAccumulators) throws StorageException {
-        Position last = positions.get(deviceAccumulators.getDeviceId());
-        if (last != null) {
-            if (deviceAccumulators.getTotalDistance() != null) {
-                last.getAttributes().put(Position.KEY_TOTAL_DISTANCE, deviceAccumulators.getTotalDistance());
-            }
-            if (deviceAccumulators.getHours() != null) {
-                last.getAttributes().put(Position.KEY_HOURS, deviceAccumulators.getHours());
-            }
-            getDataManager().addObject(last);
-            updateLatestPosition(last);
-        } else {
-            throw new IllegalArgumentException();
-        }
-    }
-
-    public DeviceState getDeviceState(long deviceId) {
-        DeviceState deviceState = deviceStates.get(deviceId);
-        if (deviceState == null) {
-            deviceState = new DeviceState();
-            deviceStates.put(deviceId, deviceState);
-        }
-        return deviceState;
-    }
-
-    public void setDeviceState(long deviceId, DeviceState deviceState) {
-        deviceStates.put(deviceId, deviceState);
-    }
-
-}
diff --git a/src/main/java/org/traccar/database/DriversManager.java b/src/main/java/org/traccar/database/DriversManager.java
deleted file mode 100644
index d111cd643..000000000
--- a/src/main/java/org/traccar/database/DriversManager.java
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Copyright 2017 - 2020 Anton Tananaev (anton@traccar.org)
- * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.database;
-
-import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
-
-import org.traccar.model.Driver;
-
-public class DriversManager extends ExtendedObjectManager<Driver> {
-
-    private Map<String, Driver> driversByUniqueId;
-
-    public DriversManager(DataManager dataManager) {
-        super(dataManager, Driver.class);
-        try {
-            writeLock();
-            if (driversByUniqueId == null) {
-                driversByUniqueId = new ConcurrentHashMap<>();
-            }
-        } finally {
-            writeUnlock();
-        }
-    }
-
-    private void addByUniqueId(Driver driver) {
-        try {
-            writeLock();
-            if (driversByUniqueId == null) {
-                driversByUniqueId = new ConcurrentHashMap<>();
-            }
-            driversByUniqueId.put(driver.getUniqueId(), driver);
-        } finally {
-            writeUnlock();
-        }
-    }
-
-    private void removeByUniqueId(String driverUniqueId) {
-        try {
-            writeLock();
-            if (driversByUniqueId == null) {
-                driversByUniqueId = new ConcurrentHashMap<>();
-            }
-            driversByUniqueId.remove(driverUniqueId);
-        } finally {
-            writeUnlock();
-        }
-    }
-
-    @Override
-    protected void addNewItem(Driver driver) {
-        super.addNewItem(driver);
-        addByUniqueId(driver);
-    }
-
-    @Override
-    protected void updateCachedItem(Driver driver) {
-        Driver cachedDriver = getById(driver.getId());
-        cachedDriver.setName(driver.getName());
-        if (!driver.getUniqueId().equals(cachedDriver.getUniqueId())) {
-            removeByUniqueId(cachedDriver.getUniqueId());
-            cachedDriver.setUniqueId(driver.getUniqueId());
-            addByUniqueId(cachedDriver);
-        }
-        cachedDriver.setAttributes(driver.getAttributes());
-    }
-
-    @Override
-    protected void removeCachedItem(long driverId) {
-        Driver cachedDriver = getById(driverId);
-        if (cachedDriver != null) {
-            String driverUniqueId = cachedDriver.getUniqueId();
-            super.removeCachedItem(driverId);
-            removeByUniqueId(driverUniqueId);
-        }
-    }
-
-    public Driver getDriverByUniqueId(String uniqueId) {
-        try {
-            readLock();
-            return driversByUniqueId.get(uniqueId);
-        } finally {
-            readUnlock();
-        }
-    }
-}
diff --git a/src/main/java/org/traccar/database/ExtendedObjectManager.java b/src/main/java/org/traccar/database/ExtendedObjectManager.java
deleted file mode 100644
index 006ed47b2..000000000
--- a/src/main/java/org/traccar/database/ExtendedObjectManager.java
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Copyright 2017 - 2020 Anton Tananaev (anton@traccar.org)
- * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.database;
-
-import java.util.Collection;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.traccar.Context;
-import org.traccar.model.Device;
-import org.traccar.model.Group;
-import org.traccar.model.Permission;
-import org.traccar.model.BaseModel;
-import org.traccar.storage.StorageException;
-
-public abstract class ExtendedObjectManager<T extends BaseModel> extends SimpleObjectManager<T> {
-
-    private static final Logger LOGGER = LoggerFactory.getLogger(ExtendedObjectManager.class);
-
-    private final Map<Long, Set<Long>> deviceItems = new ConcurrentHashMap<>();
-    private final Map<Long, Set<Long>> deviceItemsWithGroups = new ConcurrentHashMap<>();
-    private final Map<Long, Set<Long>> groupItems = new ConcurrentHashMap<>();
-
-    protected ExtendedObjectManager(DataManager dataManager, Class<T> baseClass) {
-        super(dataManager, baseClass);
-        refreshExtendedPermissions();
-    }
-
-    public final Set<Long> getGroupItems(long groupId) {
-        try {
-            readLock();
-            Set<Long> result = groupItems.get(groupId);
-            if (result != null) {
-                return new HashSet<>(result);
-            } else {
-                return new HashSet<>();
-            }
-        } finally {
-            readUnlock();
-        }
-    }
-
-    public final Set<Long> getDeviceItems(long deviceId) {
-        try {
-            readLock();
-            Set<Long> result = deviceItems.get(deviceId);
-            if (result != null) {
-                return new HashSet<>(result);
-            } else {
-                return new HashSet<>();
-            }
-        } finally {
-            readUnlock();
-        }
-    }
-
-    public Set<Long> getAllDeviceItems(long deviceId) {
-        try {
-            readLock();
-            Set<Long> result = deviceItemsWithGroups.get(deviceId);
-            if (result != null) {
-                return new HashSet<>(result);
-            } else {
-                return new HashSet<>();
-            }
-        } finally {
-            readUnlock();
-        }
-    }
-
-    @Override
-    public void removeItem(long itemId) throws StorageException {
-        super.removeItem(itemId);
-        refreshExtendedPermissions();
-    }
-
-    public void refreshExtendedPermissions() {
-        if (getDataManager() != null) {
-            try {
-                Collection<Permission> databaseGroupPermissions =
-                        getDataManager().getPermissions(Group.class, getBaseClass());
-
-                Collection<Permission> databaseDevicePermissions =
-                        getDataManager().getPermissions(Device.class, getBaseClass());
-
-                writeLock();
-
-                groupItems.clear();
-                deviceItems.clear();
-                deviceItemsWithGroups.clear();
-
-                for (Permission groupPermission : databaseGroupPermissions) {
-                    groupItems
-                            .computeIfAbsent(groupPermission.getOwnerId(), key -> new HashSet<>())
-                            .add(groupPermission.getPropertyId());
-                }
-
-                for (Permission devicePermission : databaseDevicePermissions) {
-                    deviceItems
-                            .computeIfAbsent(devicePermission.getOwnerId(), key -> new HashSet<>())
-                            .add(devicePermission.getPropertyId());
-                    deviceItemsWithGroups
-                            .computeIfAbsent(devicePermission.getOwnerId(), key -> new HashSet<>())
-                            .add(devicePermission.getPropertyId());
-                }
-
-                for (Device device : Context.getDeviceManager().getAllDevices()) {
-                    long groupId = device.getGroupId();
-                    while (groupId > 0) {
-                        deviceItemsWithGroups
-                                .computeIfAbsent(device.getId(), key -> new HashSet<>())
-                                .addAll(groupItems.getOrDefault(groupId, new HashSet<>()));
-                        Group group = Context.getGroupsManager().getById(groupId);
-                        groupId = group != null ? group.getGroupId() : 0;
-                    }
-                }
-
-            } catch (StorageException | ClassNotFoundException error) {
-                LOGGER.warn("Refresh permissions error", error);
-            } finally {
-                writeUnlock();
-            }
-        }
-    }
-}
diff --git a/src/main/java/org/traccar/database/GeofenceManager.java b/src/main/java/org/traccar/database/GeofenceManager.java
deleted file mode 100644
index a32847cf9..000000000
--- a/src/main/java/org/traccar/database/GeofenceManager.java
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * Copyright 2016 - 2017 Anton Tananaev (anton@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.database;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import org.traccar.Context;
-import org.traccar.model.Device;
-import org.traccar.model.Geofence;
-import org.traccar.model.Position;
-
-public class GeofenceManager extends ExtendedObjectManager<Geofence> {
-
-    public GeofenceManager(DataManager dataManager) {
-        super(dataManager, Geofence.class);
-    }
-
-    @Override
-    public final void refreshExtendedPermissions() {
-        super.refreshExtendedPermissions();
-        recalculateDevicesGeofences();
-    }
-
-    public List<Long> getCurrentDeviceGeofences(Position position) {
-        List<Long> result = new ArrayList<>();
-        for (long geofenceId : getAllDeviceItems(position.getDeviceId())) {
-            Geofence geofence = getById(geofenceId);
-            if (geofence != null && geofence.getGeometry()
-                    .containsPoint(position.getLatitude(), position.getLongitude())) {
-                result.add(geofenceId);
-            }
-        }
-        return result;
-    }
-
-    public void recalculateDevicesGeofences() {
-        for (Device device : Context.getDeviceManager().getAllDevices()) {
-            List<Long> deviceGeofenceIds = device.getGeofenceIds();
-            if (deviceGeofenceIds == null) {
-                deviceGeofenceIds = new ArrayList<>();
-            } else {
-                deviceGeofenceIds.clear();
-            }
-            Position lastPosition = Context.getIdentityManager().getLastPosition(device.getId());
-            if (lastPosition != null && getAllDeviceItems(device.getId()) != null) {
-                deviceGeofenceIds.addAll(getCurrentDeviceGeofences(lastPosition));
-            }
-            device.setGeofenceIds(deviceGeofenceIds);
-        }
-    }
-
-}
diff --git a/src/main/java/org/traccar/database/GroupsManager.java b/src/main/java/org/traccar/database/GroupsManager.java
deleted file mode 100644
index dafddc0cc..000000000
--- a/src/main/java/org/traccar/database/GroupsManager.java
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * Copyright 2017 - 2020 Anton Tananaev (anton@traccar.org)
- * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.database;
-
-import java.util.HashSet;
-import java.util.Set;
-
-import org.traccar.Context;
-import org.traccar.model.Group;
-import org.traccar.storage.StorageException;
-
-public class GroupsManager extends BaseObjectManager<Group> implements ManagableObjects {
-
-    public GroupsManager(DataManager dataManager) {
-        super(dataManager, Group.class);
-    }
-
-    private void checkGroupCycles(Group group) {
-        Set<Long> groups = new HashSet<>();
-        while (group != null) {
-            if (groups.contains(group.getId())) {
-                throw new IllegalArgumentException("Cycle in group hierarchy");
-            }
-            groups.add(group.getId());
-            group = getById(group.getGroupId());
-        }
-    }
-
-    @Override
-    public Set<Long> getAllItems() {
-        Set<Long> result = super.getAllItems();
-        if (result.isEmpty()) {
-            refreshItems();
-            result = super.getAllItems();
-        }
-        return result;
-    }
-
-    @Override
-    protected void addNewItem(Group group) {
-        checkGroupCycles(group);
-        super.addNewItem(group);
-    }
-
-    @Override
-    public void updateItem(Group group) throws StorageException {
-        checkGroupCycles(group);
-        super.updateItem(group);
-    }
-
-    @Override
-    public Set<Long> getUserItems(long userId) {
-        if (Context.getPermissionsManager() != null) {
-            return Context.getPermissionsManager().getGroupPermissions(userId);
-        } else {
-            return new HashSet<>();
-        }
-    }
-
-    @Override
-    public Set<Long> getManagedItems(long userId) {
-        Set<Long> result = getUserItems(userId);
-        for (long managedUserId : Context.getUsersManager().getUserItems(userId)) {
-            result.addAll(getUserItems(managedUserId));
-        }
-        return result;
-    }
-
-}
diff --git a/src/main/java/org/traccar/database/IdentityManager.java b/src/main/java/org/traccar/database/IdentityManager.java
deleted file mode 100644
index af6a6ce71..000000000
--- a/src/main/java/org/traccar/database/IdentityManager.java
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Copyright 2015 - 2019 Anton Tananaev (anton@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.database;
-
-import org.traccar.model.Device;
-import org.traccar.model.Position;
-
-public interface IdentityManager {
-
-    long addUnknownDevice(String uniqueId);
-
-    Device getById(long id);
-
-    Device getByUniqueId(String uniqueId) throws Exception;
-
-    String getDevicePassword(long id, String protocol, String defaultPassword);
-
-    Position getLastPosition(long deviceId);
-
-    boolean isLatestPosition(Position position);
-
-    boolean lookupAttributeBoolean(
-            long deviceId, String attributeName, boolean defaultValue, boolean lookupServer, boolean lookupConfig);
-
-    String lookupAttributeString(
-            long deviceId, String attributeName, String defaultValue, boolean lookupServer, boolean lookupConfig);
-
-    int lookupAttributeInteger(
-            long deviceId, String attributeName, int defaultValue, boolean lookupServer, boolean lookupConfig);
-
-    long lookupAttributeLong(
-            long deviceId, String attributeName, long defaultValue, boolean lookupServer, boolean lookupConfig);
-
-    double lookupAttributeDouble(
-            long deviceId, String attributeName, double defaultValue, boolean lookupServer, boolean lookupConfig);
-
-}
diff --git a/src/main/java/org/traccar/database/LdapProvider.java b/src/main/java/org/traccar/database/LdapProvider.java
index d659a11a1..d517294b8 100644
--- a/src/main/java/org/traccar/database/LdapProvider.java
+++ b/src/main/java/org/traccar/database/LdapProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/src/main/java/org/traccar/database/MailManager.java b/src/main/java/org/traccar/database/MailManager.java
deleted file mode 100644
index d94f55cda..000000000
--- a/src/main/java/org/traccar/database/MailManager.java
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
- * Copyright 2016 - 2021 Anton Tananaev (anton@traccar.org)
- * Copyright 2017 - 2018 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.database;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.traccar.Context;
-import org.traccar.Main;
-import org.traccar.model.User;
-import org.traccar.notification.PropertiesProvider;
-
-import javax.mail.BodyPart;
-import javax.mail.Message;
-import javax.mail.MessagingException;
-import javax.mail.Multipart;
-import javax.mail.Session;
-import javax.mail.Transport;
-import javax.mail.internet.InternetAddress;
-import javax.mail.internet.MimeBodyPart;
-import javax.mail.internet.MimeMessage;
-import javax.mail.internet.MimeMultipart;
-import java.util.Date;
-import java.util.Properties;
-
-public final class MailManager {
-
-    private static final Logger LOGGER = LoggerFactory.getLogger(MailManager.class);
-
-    private static Properties getProperties(PropertiesProvider provider) {
-        Properties properties = new Properties();
-        String host = provider.getString("mail.smtp.host");
-        if (host != null) {
-            properties.put("mail.transport.protocol", provider.getString("mail.transport.protocol", "smtp"));
-            properties.put("mail.smtp.host", host);
-            properties.put("mail.smtp.port", String.valueOf(provider.getInteger("mail.smtp.port", 25)));
-
-            Boolean starttlsEnable = provider.getBoolean("mail.smtp.starttls.enable");
-            if (starttlsEnable != null) {
-                properties.put("mail.smtp.starttls.enable", String.valueOf(starttlsEnable));
-            }
-            Boolean starttlsRequired = provider.getBoolean("mail.smtp.starttls.required");
-            if (starttlsRequired != null) {
-                properties.put("mail.smtp.starttls.required", String.valueOf(starttlsRequired));
-            }
-
-            Boolean sslEnable = provider.getBoolean("mail.smtp.ssl.enable");
-            if (sslEnable != null) {
-                properties.put("mail.smtp.ssl.enable", String.valueOf(sslEnable));
-            }
-            String sslTrust = provider.getString("mail.smtp.ssl.trust");
-            if (sslTrust != null) {
-                properties.put("mail.smtp.ssl.trust", sslTrust);
-            }
-
-            String sslProtocols = provider.getString("mail.smtp.ssl.protocols");
-            if (sslProtocols != null) {
-                properties.put("mail.smtp.ssl.protocols", sslProtocols);
-            }
-
-            String username = provider.getString("mail.smtp.username");
-            if (username != null) {
-                properties.put("mail.smtp.username", username);
-            }
-            String password = provider.getString("mail.smtp.password");
-            if (password != null) {
-                properties.put("mail.smtp.password", password);
-            }
-            String from = provider.getString("mail.smtp.from");
-            if (from != null) {
-                properties.put("mail.smtp.from", from);
-            }
-        }
-        return properties;
-    }
-
-    public boolean getEmailEnabled() {
-        return Context.getConfig().hasKey("mail.smtp.host");
-    }
-
-    public void sendMessage(
-            long userId, String subject, String body) throws MessagingException {
-        sendMessage(userId, subject, body, null);
-    }
-
-    public void sendMessage(
-            long userId, String subject, String body, MimeBodyPart attachment) throws MessagingException {
-        User user = Context.getPermissionsManager().getUser(userId);
-
-        Properties properties = null;
-        if (!Context.getConfig().getBoolean("mail.smtp.ignoreUserConfig")) {
-            properties = getProperties(new PropertiesProvider(user));
-        }
-        if (properties == null || !properties.containsKey("mail.smtp.host")) {
-            properties = getProperties(new PropertiesProvider(Context.getConfig()));
-        }
-        if (!properties.containsKey("mail.smtp.host")) {
-            LOGGER.warn("No SMTP configuration found");
-            return;
-        }
-
-        Session session = Session.getInstance(properties);
-
-        MimeMessage message = new MimeMessage(session);
-
-        String from = properties.getProperty("mail.smtp.from");
-        if (from != null) {
-            message.setFrom(new InternetAddress(from));
-        }
-
-        message.addRecipient(Message.RecipientType.TO, new InternetAddress(user.getEmail()));
-        message.setSubject(subject);
-        message.setSentDate(new Date());
-
-        if (attachment != null) {
-            Multipart multipart = new MimeMultipart();
-
-            BodyPart messageBodyPart = new MimeBodyPart();
-            messageBodyPart.setContent(body, "text/html; charset=utf-8");
-            multipart.addBodyPart(messageBodyPart);
-            multipart.addBodyPart(attachment);
-
-            message.setContent(multipart);
-        } else {
-            message.setContent(body, "text/html; charset=utf-8");
-        }
-
-        try (Transport transport = session.getTransport()) {
-            Main.getInjector().getInstance(StatisticsManager.class).registerMail();
-            transport.connect(
-                    properties.getProperty("mail.smtp.host"),
-                    properties.getProperty("mail.smtp.username"),
-                    properties.getProperty("mail.smtp.password"));
-            transport.sendMessage(message, message.getAllRecipients());
-        }
-    }
-
-}
diff --git a/src/main/java/org/traccar/database/MediaManager.java b/src/main/java/org/traccar/database/MediaManager.java
index edade5766..2f2369c96 100644
--- a/src/main/java/org/traccar/database/MediaManager.java
+++ b/src/main/java/org/traccar/database/MediaManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,10 +18,15 @@ package org.traccar.database;
 import io.netty.buffer.ByteBuf;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
+import java.io.OutputStream;
 import java.nio.ByteBuffer;
 import java.nio.channels.FileChannel;
 import java.nio.file.Files;
@@ -30,14 +35,16 @@ import java.nio.file.Paths;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 
+@Singleton
 public class MediaManager {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(MediaManager.class);
 
-    private String path;
+    private final String path;
 
-    public MediaManager(String path) {
-        this.path = path;
+    @Inject
+    public MediaManager(Config config) {
+        this.path = config.getString(Keys.MEDIA_PATH);
     }
 
     private File createFile(String uniqueId, String name) throws IOException {
@@ -49,6 +56,10 @@ public class MediaManager {
         return filePath.toFile();
     }
 
+    public OutputStream createFileStream(String uniqueId, String name, String extension) throws IOException {
+        return new FileOutputStream(createFile(uniqueId, name + "." + extension));
+    }
+
     public String writeFile(String uniqueId, ByteBuf buf, String extension) {
         if (path != null) {
             int size = buf.readableBytes();
diff --git a/src/main/java/org/traccar/database/NotificationManager.java b/src/main/java/org/traccar/database/NotificationManager.java
index f358b1d4d..3a57788fb 100644
--- a/src/main/java/org/traccar/database/NotificationManager.java
+++ b/src/main/java/org/traccar/database/NotificationManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2016 - 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,128 +16,141 @@
  */
 package org.traccar.database;
 
-import java.lang.reflect.Field;
-import java.lang.reflect.Modifier;
-import java.util.Arrays;
-import java.util.Date;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.Set;
-
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.traccar.Context;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
+import org.traccar.forward.EventData;
+import org.traccar.forward.EventForwarder;
+import org.traccar.geocoder.Geocoder;
 import org.traccar.model.Calendar;
+import org.traccar.model.Device;
 import org.traccar.model.Event;
+import org.traccar.model.Geofence;
+import org.traccar.model.Maintenance;
 import org.traccar.model.Notification;
 import org.traccar.model.Position;
-import org.traccar.model.Typed;
+import org.traccar.notification.MessageException;
+import org.traccar.notification.NotificatorManager;
+import org.traccar.session.cache.CacheManager;
+import org.traccar.storage.Storage;
 import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Request;
+
+import jakarta.annotation.Nullable;
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.util.Arrays;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.stream.Collectors;
 
-public class NotificationManager extends ExtendedObjectManager<Notification> {
+@Singleton
+public class NotificationManager {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(NotificationManager.class);
 
-    private final boolean geocodeOnRequest;
+    private final Storage storage;
+    private final CacheManager cacheManager;
+    private final EventForwarder eventForwarder;
+    private final NotificatorManager notificatorManager;
+    private final Geocoder geocoder;
 
-    public NotificationManager(DataManager dataManager) {
-        super(dataManager, Notification.class);
-        geocodeOnRequest = Context.getConfig().getBoolean(Keys.GEOCODER_ON_REQUEST);
-    }
+    private final boolean geocodeOnRequest;
 
-    private Set<Long> getEffectiveNotifications(long userId, long deviceId, Date time) {
-        Set<Long> result = new HashSet<>();
-        Set<Long> deviceNotifications = getAllDeviceItems(deviceId);
-        for (long itemId : getUserItems(userId)) {
-            if (getById(itemId).getAlways() || deviceNotifications.contains(itemId)) {
-                long calendarId = getById(itemId).getCalendarId();
-                Calendar calendar = calendarId != 0 ? Context.getCalendarManager().getById(calendarId) : null;
-                if (calendar == null || calendar.checkMoment(time)) {
-                    result.add(itemId);
-                }
-            }
-        }
-        return result;
+    @Inject
+    public NotificationManager(
+            Config config, Storage storage, CacheManager cacheManager, @Nullable EventForwarder eventForwarder,
+            NotificatorManager notificatorManager, @Nullable Geocoder geocoder) {
+        this.storage = storage;
+        this.cacheManager = cacheManager;
+        this.eventForwarder = eventForwarder;
+        this.notificatorManager = notificatorManager;
+        this.geocoder = geocoder;
+        geocodeOnRequest = config.getBoolean(Keys.GEOCODER_ON_REQUEST);
     }
 
-    public void updateEvent(Event event, Position position) {
+    private void updateEvent(Event event, Position position) {
         try {
-            getDataManager().addObject(event);
+            event.setId(storage.addObject(event, new Request(new Columns.Exclude("id"))));
         } catch (StorageException error) {
             LOGGER.warn("Event save error", error);
         }
 
-        long deviceId = event.getDeviceId();
-        Set<Long> users = Context.getPermissionsManager().getDeviceUsers(deviceId);
-        Set<Long> usersToForward = null;
-        if (Context.getEventForwarder() != null) {
-            usersToForward = new HashSet<>();
-        }
-        for (long userId : users) {
-            if ((event.getGeofenceId() == 0
-                    || Context.getGeofenceManager().checkItemPermission(userId, event.getGeofenceId()))
-                    && (event.getMaintenanceId() == 0
-                    || Context.getMaintenancesManager().checkItemPermission(userId, event.getMaintenanceId()))) {
-                if (usersToForward != null) {
-                    usersToForward.add(userId);
-                }
-                final Set<String> notificators = new HashSet<>();
-                for (long notificationId : getEffectiveNotifications(userId, deviceId, event.getEventTime())) {
-                    Notification notification = getById(notificationId);
-                    if (getById(notificationId).getType().equals(event.getType())) {
-                        boolean filter = false;
-                        if (event.getType().equals(Event.TYPE_ALARM)) {
-                            String alarmsAttribute = notification.getString("alarms");
-                            if (alarmsAttribute == null) {
-                                filter = true;
-                            } else {
-                                List<String> alarms = Arrays.asList(alarmsAttribute.split(","));
-                                filter = !alarms.contains(event.getString(Position.KEY_ALARM));
-                            }
-                        }
-                        if (!filter) {
-                            notificators.addAll(notification.getNotificatorsTypes());
+        var notifications = cacheManager.getDeviceObjects(event.getDeviceId(), Notification.class).stream()
+                .filter(notification -> notification.getType().equals(event.getType()))
+                .filter(notification -> {
+                    if (event.getType().equals(Event.TYPE_ALARM)) {
+                        String alarmsAttribute = notification.getString("alarms");
+                        if (alarmsAttribute != null) {
+                            return Arrays.asList(alarmsAttribute.split(","))
+                                    .contains(event.getString(Position.KEY_ALARM));
                         }
+                        return false;
                     }
-                }
-
-                if (position != null && position.getAddress() == null
-                        && geocodeOnRequest && Context.getGeocoder() != null) {
-                    position.setAddress(Context.getGeocoder()
-                            .getAddress(position.getLatitude(), position.getLongitude(), null));
-                }
+                    return true;
+                })
+                .filter(notification -> {
+                    long calendarId = notification.getCalendarId();
+                    Calendar calendar = calendarId != 0 ? cacheManager.getObject(Calendar.class, calendarId) : null;
+                    return calendar == null || calendar.checkMoment(event.getEventTime());
+                })
+                .collect(Collectors.toUnmodifiableList());
 
-                for (String notificator : notificators) {
-                    Context.getNotificatorManager().getNotificator(notificator).sendAsync(userId, event, position);
-                }
+        if (!notifications.isEmpty()) {
+            if (position != null && position.getAddress() == null && geocodeOnRequest && geocoder != null) {
+                position.setAddress(geocoder.getAddress(position.getLatitude(), position.getLongitude(), null));
             }
+
+            notifications.forEach(notification -> {
+                cacheManager.getNotificationUsers(notification.getId(), event.getDeviceId()).forEach(user -> {
+                    for (String notificator : notification.getNotificatorsTypes()) {
+                        try {
+                            notificatorManager.getNotificator(notificator).send(notification, user, event, position);
+                        } catch (MessageException exception) {
+                            LOGGER.warn("Notification failed", exception);
+                        }
+                    }
+                });
+            });
         }
-        if (Context.getEventForwarder() != null) {
-            Context.getEventForwarder().forwardEvent(event, position, usersToForward);
-        }
+
+        forwardEvent(event, position);
     }
 
-    public void updateEvents(Map<Event, Position> events) {
-        for (Entry<Event, Position> event : events.entrySet()) {
-            updateEvent(event.getKey(), event.getValue());
+    private void forwardEvent(Event event, Position position) {
+        if (eventForwarder != null) {
+            EventData eventData = new EventData();
+            eventData.setEvent(event);
+            eventData.setPosition(position);
+            eventData.setDevice(cacheManager.getObject(Device.class, event.getDeviceId()));
+            if (event.getGeofenceId() != 0) {
+                eventData.setGeofence(cacheManager.getObject(Geofence.class, event.getGeofenceId()));
+            }
+            if (event.getMaintenanceId() != 0) {
+                eventData.setMaintenance(cacheManager.getObject(Maintenance.class, event.getMaintenanceId()));
+            }
+            eventForwarder.forward(eventData, (success, throwable) -> {
+                if (!success) {
+                    LOGGER.warn("Event forwarding failed", throwable);
+                }
+            });
         }
     }
 
-    public Set<Typed> getAllNotificationTypes() {
-        Set<Typed> types = new HashSet<>();
-        Field[] fields = Event.class.getDeclaredFields();
-        for (Field field : fields) {
-            if (Modifier.isStatic(field.getModifiers()) && field.getName().startsWith("TYPE_")) {
-                try {
-                    types.add(new Typed(field.get(null).toString()));
-                } catch (IllegalArgumentException | IllegalAccessException error) {
-                    LOGGER.warn("Get event types error", error);
-                }
+    public void updateEvents(Map<Event, Position> events) {
+        for (Entry<Event, Position> entry : events.entrySet()) {
+            Event event = entry.getKey();
+            Position position = entry.getValue();
+            try {
+                cacheManager.addDevice(event.getDeviceId());
+                updateEvent(event, position);
+            } catch (StorageException e) {
+                throw new RuntimeException(e);
+            } finally {
+                cacheManager.removeDevice(event.getDeviceId());
             }
         }
-        return types;
     }
 }
diff --git a/src/main/java/org/traccar/database/OpenIdProvider.java b/src/main/java/org/traccar/database/OpenIdProvider.java
new file mode 100644
index 000000000..312be8890
--- /dev/null
+++ b/src/main/java/org/traccar/database/OpenIdProvider.java
@@ -0,0 +1,203 @@
+/*
+ * Copyright 2023 Daniel Raper (me@danr.uk)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.database;
+
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.api.resource.SessionResource;
+import org.traccar.api.security.LoginService;
+import org.traccar.model.User;
+import org.traccar.storage.StorageException;
+import org.traccar.helper.LogAction;
+import org.traccar.helper.WebHelper;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse.BodyHandlers;
+import java.security.GeneralSecurityException;
+import java.util.List;
+import java.util.Map;
+import java.io.IOException;
+import jakarta.servlet.http.HttpServletRequest;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.google.inject.Inject;
+
+import com.nimbusds.oauth2.sdk.http.HTTPResponse;
+import com.nimbusds.oauth2.sdk.AuthorizationCode;
+import com.nimbusds.oauth2.sdk.ResponseType;
+import com.nimbusds.oauth2.sdk.Scope;
+import com.nimbusds.oauth2.sdk.AuthorizationGrant;
+import com.nimbusds.oauth2.sdk.TokenRequest;
+import com.nimbusds.oauth2.sdk.TokenResponse;
+import com.nimbusds.oauth2.sdk.AuthorizationCodeGrant;
+import com.nimbusds.oauth2.sdk.ParseException;
+import com.nimbusds.oauth2.sdk.AuthorizationResponse;
+import com.nimbusds.oauth2.sdk.auth.Secret;
+import com.nimbusds.oauth2.sdk.auth.ClientSecretBasic;
+import com.nimbusds.oauth2.sdk.auth.ClientAuthentication;
+import com.nimbusds.oauth2.sdk.token.BearerAccessToken;
+import com.nimbusds.oauth2.sdk.id.State;
+import com.nimbusds.oauth2.sdk.id.ClientID;
+import com.nimbusds.openid.connect.sdk.OIDCTokenResponse;
+import com.nimbusds.openid.connect.sdk.OIDCTokenResponseParser;
+import com.nimbusds.openid.connect.sdk.UserInfoResponse;
+import com.nimbusds.openid.connect.sdk.UserInfoRequest;
+import com.nimbusds.openid.connect.sdk.AuthenticationRequest;
+import com.nimbusds.openid.connect.sdk.claims.UserInfo;
+
+public class OpenIdProvider {
+    private final Boolean force;
+    private final ClientID clientId;
+    private final ClientAuthentication clientAuth;
+    private URI callbackUrl;
+    private URI authUrl;
+    private URI tokenUrl;
+    private URI userInfoUrl;
+    private URI baseUrl;
+    private final String adminGroup;
+    private final String allowGroup;
+
+    private LoginService loginService;
+
+    @Inject
+    public OpenIdProvider(
+        Config config, LoginService loginService, HttpClient httpClient, ObjectMapper objectMapper
+        ) throws InterruptedException, IOException, URISyntaxException {
+        this.loginService = loginService;
+
+        force = config.getBoolean(Keys.OPENID_FORCE);
+        clientId = new ClientID(config.getString(Keys.OPENID_CLIENT_ID));
+        clientAuth = new ClientSecretBasic(clientId, new Secret(config.getString(Keys.OPENID_CLIENT_SECRET)));
+
+        baseUrl = new URI(WebHelper.retrieveWebUrl(config));
+        callbackUrl = new URI(WebHelper.retrieveWebUrl(config) + "/api/session/openid/callback");
+
+        if (config.hasKey(Keys.OPENID_ISSUER_URL)) {
+            HttpRequest httpRequest = HttpRequest.newBuilder(
+                URI.create(config.getString(Keys.OPENID_ISSUER_URL) + "/.well-known/openid-configuration"))
+                .header("Accept", "application/json")
+                .build();
+
+            String httpResponse = httpClient.send(httpRequest, BodyHandlers.ofString()).body();
+
+            Map<String, Object> discoveryMap = objectMapper.readValue(
+                httpResponse, new TypeReference<Map<String, Object>>() { });
+
+            authUrl = new URI((String) discoveryMap.get("authorization_endpoint"));
+            tokenUrl = new URI((String) discoveryMap.get("token_endpoint"));
+            userInfoUrl = new URI((String) discoveryMap.get("userinfo_endpoint"));
+        } else {
+            authUrl = new URI(config.getString(Keys.OPENID_AUTH_URL));
+            tokenUrl = new URI(config.getString(Keys.OPENID_TOKEN_URL));
+            userInfoUrl = new URI(config.getString(Keys.OPENID_USERINFO_URL));
+        }
+
+        adminGroup = config.getString(Keys.OPENID_ADMIN_GROUP);
+        allowGroup = config.getString(Keys.OPENID_ALLOW_GROUP);
+    }
+
+    public URI createAuthUri() {
+        Scope scope = new Scope("openid", "profile", "email");
+
+        if (adminGroup != null) {
+            scope.add("groups");
+        }
+
+        AuthenticationRequest.Builder request = new AuthenticationRequest.Builder(
+                new ResponseType("code"),
+                scope,
+                clientId,
+                callbackUrl);
+
+        return request.endpointURI(authUrl)
+                .state(new State())
+                .build()
+                .toURI();
+    }
+
+    private OIDCTokenResponse getToken(
+        AuthorizationCode code) throws IOException, ParseException, GeneralSecurityException {
+            AuthorizationGrant codeGrant = new AuthorizationCodeGrant(code, callbackUrl);
+            TokenRequest tokenRequest = new TokenRequest(tokenUrl, clientAuth, codeGrant);
+
+            HTTPResponse tokenResponse = tokenRequest.toHTTPRequest().send();
+            TokenResponse token = OIDCTokenResponseParser.parse(tokenResponse);
+            if (!token.indicatesSuccess()) {
+                throw new GeneralSecurityException("Unable to authenticate with the OpenID Connect provider.");
+            }
+
+            return (OIDCTokenResponse) token.toSuccessResponse();
+    }
+
+    private UserInfo getUserInfo(BearerAccessToken token) throws IOException, ParseException, GeneralSecurityException {
+        HTTPResponse httpResponse = new UserInfoRequest(userInfoUrl, token)
+                .toHTTPRequest()
+                .send();
+
+        UserInfoResponse userInfoResponse = UserInfoResponse.parse(httpResponse);
+
+        if (!userInfoResponse.indicatesSuccess()) {
+            throw new GeneralSecurityException(
+                "Failed to access OpenID Connect user info endpoint. Please contact your administrator.");
+        }
+
+        return userInfoResponse.toSuccessResponse().getUserInfo();
+    }
+
+    public URI handleCallback(
+            URI requestUri, HttpServletRequest request
+        ) throws StorageException, ParseException, IOException, GeneralSecurityException {
+            AuthorizationResponse response = AuthorizationResponse.parse(requestUri);
+
+            if (!response.indicatesSuccess()) {
+                throw new GeneralSecurityException(response.toErrorResponse().getErrorObject().getDescription());
+            }
+
+            AuthorizationCode authCode = response.toSuccessResponse().getAuthorizationCode();
+
+            if (authCode == null) {
+                throw new GeneralSecurityException("Malformed OpenID callback.");
+            }
+
+            OIDCTokenResponse tokens = getToken(authCode);
+
+            BearerAccessToken bearerToken = tokens.getOIDCTokens().getBearerAccessToken();
+
+            UserInfo userInfo = getUserInfo(bearerToken);
+
+            List<String> userGroups = userInfo.getStringListClaim("groups");
+            Boolean administrator = adminGroup != null && userGroups.contains(adminGroup);
+
+            if (!(administrator || allowGroup == null || userGroups.contains(allowGroup))) {
+                throw new GeneralSecurityException("Your OpenID Groups do not permit access to Traccar.");
+            }
+
+            User user = loginService.login(userInfo.getEmailAddress(), userInfo.getName(), administrator);
+
+            request.getSession().setAttribute(SessionResource.USER_ID_KEY, user.getId());
+            LogAction.login(user.getId(), WebHelper.retrieveRemoteAddress(request));
+
+            return baseUrl;
+    }
+
+    public boolean getForce() {
+        return force;
+    }
+}
diff --git a/src/main/java/org/traccar/database/PermissionsManager.java b/src/main/java/org/traccar/database/PermissionsManager.java
deleted file mode 100644
index 2bb808033..000000000
--- a/src/main/java/org/traccar/database/PermissionsManager.java
+++ /dev/null
@@ -1,528 +0,0 @@
-/*
- * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.database;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.traccar.Context;
-import org.traccar.model.Attribute;
-import org.traccar.model.BaseModel;
-import org.traccar.model.Calendar;
-import org.traccar.model.Command;
-import org.traccar.model.Device;
-import org.traccar.model.Driver;
-import org.traccar.model.Geofence;
-import org.traccar.model.Group;
-import org.traccar.model.Maintenance;
-import org.traccar.model.ManagedUser;
-import org.traccar.model.Notification;
-import org.traccar.model.Order;
-import org.traccar.model.Permission;
-import org.traccar.model.Server;
-import org.traccar.model.User;
-import org.traccar.storage.StorageException;
-
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.locks.ReadWriteLock;
-import java.util.concurrent.locks.ReentrantReadWriteLock;
-
-public class PermissionsManager {
-
-    private static final Logger LOGGER = LoggerFactory.getLogger(PermissionsManager.class);
-
-    private final DataManager dataManager;
-    private final UsersManager usersManager;
-
-    private volatile Server server;
-
-    private final ReadWriteLock lock = new ReentrantReadWriteLock();
-
-    private final Map<Long, Set<Long>> groupPermissions = new HashMap<>();
-    private final Map<Long, Set<Long>> devicePermissions = new HashMap<>();
-    private final Map<Long, Set<Long>> deviceUsers = new HashMap<>();
-    private final Map<Long, Set<Long>> groupDevices = new HashMap<>();
-
-    public PermissionsManager(DataManager dataManager, UsersManager usersManager) {
-        this.dataManager = dataManager;
-        this.usersManager = usersManager;
-        refreshServer();
-        refreshDeviceAndGroupPermissions();
-    }
-
-    protected final void readLock() {
-        lock.readLock().lock();
-    }
-
-    protected final void readUnlock() {
-        lock.readLock().unlock();
-    }
-
-    protected final void writeLock() {
-        lock.writeLock().lock();
-    }
-
-    protected final void writeUnlock() {
-        lock.writeLock().unlock();
-    }
-
-    public User getUser(long userId) {
-        readLock();
-        try {
-            return usersManager.getById(userId);
-        } finally {
-            readUnlock();
-        }
-    }
-
-    public Set<Long> getGroupPermissions(long userId) {
-        readLock();
-        try {
-            if (!groupPermissions.containsKey(userId)) {
-                groupPermissions.put(userId, new HashSet<>());
-            }
-            return groupPermissions.get(userId);
-        } finally {
-            readUnlock();
-        }
-    }
-
-    public Set<Long> getDevicePermissions(long userId) {
-        readLock();
-        try {
-            if (!devicePermissions.containsKey(userId)) {
-                devicePermissions.put(userId, new HashSet<>());
-            }
-            return devicePermissions.get(userId);
-        } finally {
-            readUnlock();
-        }
-    }
-
-    private Set<Long> getAllDeviceUsers(long deviceId) {
-        readLock();
-        try {
-            if (!deviceUsers.containsKey(deviceId)) {
-                deviceUsers.put(deviceId, new HashSet<>());
-            }
-            return deviceUsers.get(deviceId);
-        } finally {
-            readUnlock();
-        }
-    }
-
-    public Set<Long> getDeviceUsers(long deviceId) {
-        Device device = Context.getIdentityManager().getById(deviceId);
-        if (device != null && !device.getDisabled()) {
-            return getAllDeviceUsers(deviceId);
-        } else {
-            Set<Long> result = new HashSet<>();
-            for (long userId : getAllDeviceUsers(deviceId)) {
-                if (getUserAdmin(userId)) {
-                    result.add(userId);
-                }
-            }
-            return result;
-        }
-    }
-
-    public Set<Long> getGroupDevices(long groupId) {
-        readLock();
-        try {
-            if (!groupDevices.containsKey(groupId)) {
-                groupDevices.put(groupId, new HashSet<>());
-            }
-            return groupDevices.get(groupId);
-        } finally {
-            readUnlock();
-        }
-    }
-
-    public void refreshServer() {
-        try {
-            server = dataManager.getServer();
-        } catch (StorageException error) {
-            LOGGER.warn("Refresh server config error", error);
-        }
-    }
-
-    public final void refreshDeviceAndGroupPermissions() {
-        writeLock();
-        try {
-            groupPermissions.clear();
-            devicePermissions.clear();
-            try {
-                GroupTree groupTree = new GroupTree(Context.getGroupsManager().getItems(
-                        Context.getGroupsManager().getAllItems()),
-                        Context.getDeviceManager().getAllDevices());
-                for (Permission groupPermission : dataManager.getPermissions(User.class, Group.class)) {
-                    Set<Long> userGroupPermissions = getGroupPermissions(groupPermission.getOwnerId());
-                    Set<Long> userDevicePermissions = getDevicePermissions(groupPermission.getOwnerId());
-                    userGroupPermissions.add(groupPermission.getPropertyId());
-                    for (Group group : groupTree.getGroups(groupPermission.getPropertyId())) {
-                        userGroupPermissions.add(group.getId());
-                    }
-                    for (Device device : groupTree.getDevices(groupPermission.getPropertyId())) {
-                        userDevicePermissions.add(device.getId());
-                    }
-                }
-
-                for (Permission devicePermission : dataManager.getPermissions(User.class, Device.class)) {
-                    getDevicePermissions(devicePermission.getOwnerId()).add(devicePermission.getPropertyId());
-                }
-
-                groupDevices.clear();
-                for (long groupId : Context.getGroupsManager().getAllItems()) {
-                    for (Device device : groupTree.getDevices(groupId)) {
-                        getGroupDevices(groupId).add(device.getId());
-                    }
-                }
-
-            } catch (StorageException | ClassNotFoundException error) {
-                LOGGER.warn("Refresh device permissions error", error);
-            }
-
-            deviceUsers.clear();
-            for (Map.Entry<Long, Set<Long>> entry : devicePermissions.entrySet()) {
-                for (long deviceId : entry.getValue()) {
-                    getAllDeviceUsers(deviceId).add(entry.getKey());
-                }
-            }
-        } finally {
-            writeUnlock();
-        }
-    }
-
-    public boolean getUserAdmin(long userId) {
-        User user = getUser(userId);
-        return user != null && user.getAdministrator();
-    }
-
-    public void checkAdmin(long userId) throws SecurityException {
-        if (!getUserAdmin(userId)) {
-            throw new SecurityException("Admin access required");
-        }
-    }
-
-    public boolean getUserManager(long userId) {
-        User user = getUser(userId);
-        return user != null && user.getUserLimit() != 0;
-    }
-
-    public void checkManager(long userId) throws SecurityException {
-        if (!getUserManager(userId)) {
-            throw new SecurityException("Manager access required");
-        }
-    }
-
-    public void checkManager(long userId, long managedUserId) throws SecurityException {
-        checkManager(userId);
-        if (!usersManager.getUserItems(userId).contains(managedUserId)) {
-            throw new SecurityException("User access denied");
-        }
-    }
-
-    public void checkUserLimit(long userId) throws SecurityException {
-        int userLimit = getUser(userId).getUserLimit();
-        if (userLimit != -1 && usersManager.getUserItems(userId).size() >= userLimit) {
-            throw new SecurityException("Manager user limit reached");
-        }
-    }
-
-    public void checkDeviceLimit(long userId) throws SecurityException {
-        int deviceLimit = getUser(userId).getDeviceLimit();
-        if (deviceLimit != -1) {
-            int deviceCount;
-            if (getUserManager(userId)) {
-                deviceCount = Context.getDeviceManager().getAllManagedItems(userId).size();
-            } else {
-                deviceCount = Context.getDeviceManager().getAllUserItems(userId).size();
-            }
-            if (deviceCount >= deviceLimit) {
-                throw new SecurityException("User device limit reached");
-            }
-        }
-    }
-
-    public boolean getUserReadonly(long userId) {
-        User user = getUser(userId);
-        return user != null && user.getReadonly();
-    }
-
-    public boolean getUserDeviceReadonly(long userId) {
-        User user = getUser(userId);
-        return user != null && user.getDeviceReadonly();
-    }
-
-    public boolean getUserLimitCommands(long userId) {
-        User user = getUser(userId);
-        return user != null && user.getLimitCommands();
-    }
-
-    public boolean getUserDisableReport(long userId) {
-        User user = getUser(userId);
-        return user != null && user.getDisableReports();
-    }
-
-    public void checkReadonly(long userId) throws SecurityException {
-        if (!getUserAdmin(userId) && (server.getReadonly() || getUserReadonly(userId))) {
-            throw new SecurityException("Account is readonly");
-        }
-    }
-
-    public void checkDeviceReadonly(long userId) throws SecurityException {
-        if (!getUserAdmin(userId) && (server.getDeviceReadonly() || getUserDeviceReadonly(userId))) {
-            throw new SecurityException("Account is device readonly");
-        }
-    }
-
-    public void checkLimitCommands(long userId) throws SecurityException {
-        if (!getUserAdmin(userId) && (server.getLimitCommands() || getUserLimitCommands(userId))) {
-            throw new SecurityException("Account has limit sending commands");
-        }
-    }
-
-    public void checkDisableReports(long userId) throws SecurityException {
-        if (!getUserAdmin(userId) && (server.getDisableReports() || getUserDisableReport(userId))) {
-            throw new SecurityException("Account has reports disabled");
-        }
-    }
-
-    public void checkUserDeviceCommand(long userId, long deviceId, long commandId) throws SecurityException {
-        if (!getUserAdmin(userId) && Context.getCommandsManager().checkDeviceCommand(deviceId, commandId)) {
-            throw new SecurityException("Command can not be sent to this device");
-        }
-    }
-
-    public void checkUserEnabled(long userId) throws SecurityException {
-        User user = getUser(userId);
-        if (user == null) {
-            throw new SecurityException("Unknown account");
-        }
-        if (user.getDisabled()) {
-            throw new SecurityException("Account is disabled");
-        }
-        if (user.getExpirationTime() != null && System.currentTimeMillis() > user.getExpirationTime().getTime()) {
-            throw new SecurityException("Account has expired");
-        }
-    }
-
-    public void checkUserUpdate(long userId, User before, User after) throws SecurityException {
-        if (before.getAdministrator() != after.getAdministrator()
-                || before.getDeviceLimit() != after.getDeviceLimit()
-                || before.getUserLimit() != after.getUserLimit()) {
-            checkAdmin(userId);
-        }
-        User user = getUser(userId);
-        if (user != null && user.getExpirationTime() != null
-                && (after.getExpirationTime() == null
-                || user.getExpirationTime().compareTo(after.getExpirationTime()) < 0)) {
-            checkAdmin(userId);
-        }
-        if (before.getReadonly() != after.getReadonly()
-                || before.getDeviceReadonly() != after.getDeviceReadonly()
-                || before.getDisabled() != after.getDisabled()
-                || before.getLimitCommands() != after.getLimitCommands()
-                || before.getDisableReports() != after.getDisableReports()) {
-            if (userId == after.getId()) {
-                checkAdmin(userId);
-            }
-            if (!getUserAdmin(userId)) {
-                checkManager(userId);
-            }
-        }
-    }
-
-    public void checkUser(long userId, long managedUserId) throws SecurityException {
-        if (userId != managedUserId && !getUserAdmin(userId)) {
-            checkManager(userId, managedUserId);
-        }
-    }
-
-    public void checkGroup(long userId, long groupId) throws SecurityException {
-        if (!getGroupPermissions(userId).contains(groupId) && !getUserAdmin(userId)) {
-            checkManager(userId);
-            for (long managedUserId : usersManager.getUserItems(userId)) {
-                if (getGroupPermissions(managedUserId).contains(groupId)) {
-                    return;
-                }
-            }
-            throw new SecurityException("Group access denied");
-        }
-    }
-
-    public void checkDevice(long userId, long deviceId) throws SecurityException {
-        if (!Context.getDeviceManager().getUserItems(userId).contains(deviceId) && !getUserAdmin(userId)) {
-            checkManager(userId);
-            for (long managedUserId : usersManager.getUserItems(userId)) {
-                if (Context.getDeviceManager().getUserItems(managedUserId).contains(deviceId)) {
-                    return;
-                }
-            }
-            throw new SecurityException("Device access denied");
-        }
-    }
-
-    public void checkRegistration(long userId) {
-        if (!server.getRegistration() && !getUserAdmin(userId)) {
-            throw new SecurityException("Registration disabled");
-        }
-    }
-
-    public void checkPermission(Class<?> object, long userId, long objectId)
-            throws SecurityException {
-        SimpleObjectManager<? extends BaseModel> manager = null;
-
-        if (object.equals(Device.class)) {
-            checkDevice(userId, objectId);
-        } else if (object.equals(Group.class)) {
-            checkGroup(userId, objectId);
-        } else if (object.equals(User.class) || object.equals(ManagedUser.class)) {
-            checkUser(userId, objectId);
-        } else if (object.equals(Geofence.class)) {
-            manager = Context.getGeofenceManager();
-        } else if (object.equals(Attribute.class)) {
-            manager = Context.getAttributesManager();
-        } else if (object.equals(Driver.class)) {
-            manager = Context.getDriversManager();
-        } else if (object.equals(Calendar.class)) {
-            manager = Context.getCalendarManager();
-        } else if (object.equals(Command.class)) {
-            manager = Context.getCommandsManager();
-        } else if (object.equals(Maintenance.class)) {
-            manager = Context.getMaintenancesManager();
-        } else if (object.equals(Notification.class)) {
-            manager = Context.getNotificationManager();
-        } else if (object.equals(Order.class)) {
-            manager = Context.getOrderManager();
-        } else {
-            throw new IllegalArgumentException("Unknown object type");
-        }
-
-        if (manager != null && !manager.checkItemPermission(userId, objectId) && !getUserAdmin(userId)) {
-            checkManager(userId);
-            for (long managedUserId : usersManager.getManagedItems(userId)) {
-                if (manager.checkItemPermission(managedUserId, objectId)) {
-                    return;
-                }
-            }
-            throw new SecurityException("Type " + object + " access denied");
-        }
-    }
-
-    public void refreshAllUsersPermissions() {
-        if (Context.getGeofenceManager() != null) {
-            Context.getGeofenceManager().refreshUserItems();
-        }
-        Context.getCalendarManager().refreshUserItems();
-        Context.getDriversManager().refreshUserItems();
-        Context.getAttributesManager().refreshUserItems();
-        Context.getCommandsManager().refreshUserItems();
-        Context.getMaintenancesManager().refreshUserItems();
-        if (Context.getNotificationManager() != null) {
-            Context.getNotificationManager().refreshUserItems();
-        }
-    }
-
-    public void refreshAllExtendedPermissions() {
-        if (Context.getGeofenceManager() != null) {
-            Context.getGeofenceManager().refreshExtendedPermissions();
-        }
-        Context.getDriversManager().refreshExtendedPermissions();
-        Context.getAttributesManager().refreshExtendedPermissions();
-        Context.getCommandsManager().refreshExtendedPermissions();
-        Context.getMaintenancesManager().refreshExtendedPermissions();
-    }
-
-    public void refreshPermissions(Permission permission) {
-        if (permission.getOwnerClass().equals(User.class)) {
-            if (permission.getPropertyClass().equals(Device.class)
-                    || permission.getPropertyClass().equals(Group.class)) {
-                refreshDeviceAndGroupPermissions();
-                refreshAllExtendedPermissions();
-            } else if (permission.getPropertyClass().equals(ManagedUser.class)) {
-                usersManager.refreshUserItems();
-            } else if (permission.getPropertyClass().equals(Geofence.class) && Context.getGeofenceManager() != null) {
-                Context.getGeofenceManager().refreshUserItems();
-            } else if (permission.getPropertyClass().equals(Driver.class)) {
-                Context.getDriversManager().refreshUserItems();
-            } else if (permission.getPropertyClass().equals(Attribute.class)) {
-                Context.getAttributesManager().refreshUserItems();
-            } else if (permission.getPropertyClass().equals(Calendar.class)) {
-                Context.getCalendarManager().refreshUserItems();
-            } else if (permission.getPropertyClass().equals(Command.class)) {
-                Context.getCommandsManager().refreshUserItems();
-            } else if (permission.getPropertyClass().equals(Maintenance.class)) {
-                Context.getMaintenancesManager().refreshUserItems();
-            } else if (permission.getPropertyClass().equals(Order.class)) {
-                Context.getOrderManager().refreshUserItems();
-            } else if (permission.getPropertyClass().equals(Notification.class)
-                    && Context.getNotificationManager() != null) {
-                Context.getNotificationManager().refreshUserItems();
-            }
-        } else if (permission.getOwnerClass().equals(Device.class) || permission.getOwnerClass().equals(Group.class)) {
-            if (permission.getPropertyClass().equals(Geofence.class) && Context.getGeofenceManager() != null) {
-                Context.getGeofenceManager().refreshExtendedPermissions();
-            } else if (permission.getPropertyClass().equals(Driver.class)) {
-                Context.getDriversManager().refreshExtendedPermissions();
-            } else if (permission.getPropertyClass().equals(Attribute.class)) {
-                Context.getAttributesManager().refreshExtendedPermissions();
-            } else if (permission.getPropertyClass().equals(Command.class)) {
-                Context.getCommandsManager().refreshExtendedPermissions();
-            } else if (permission.getPropertyClass().equals(Maintenance.class)) {
-                Context.getMaintenancesManager().refreshExtendedPermissions();
-            } else if (permission.getPropertyClass().equals(Order.class)) {
-                Context.getOrderManager().refreshExtendedPermissions();
-            } else if (permission.getPropertyClass().equals(Notification.class)
-                    && Context.getNotificationManager() != null) {
-                Context.getNotificationManager().refreshExtendedPermissions();
-            }
-        }
-    }
-
-    public Server getServer() {
-        return server;
-    }
-
-    public void updateServer(Server server) throws StorageException {
-        dataManager.updateObject(server);
-        this.server = server;
-    }
-
-    public User login(String email, String password) throws StorageException {
-        User user = dataManager.login(email, password);
-        if (user != null) {
-            checkUserEnabled(user.getId());
-            return getUser(user.getId());
-        }
-        return null;
-    }
-
-    public Object lookupAttribute(long userId, String key, Object defaultValue) {
-        Object preference;
-        Object serverPreference = server.getAttributes().get(key);
-        Object userPreference = getUser(userId).getAttributes().get(key);
-        if (server.getForceSettings()) {
-            preference = serverPreference != null ? serverPreference : userPreference;
-        } else {
-            preference = userPreference != null ? userPreference : serverPreference;
-        }
-        return preference != null ? preference : defaultValue;
-    }
-
-}
diff --git a/src/main/java/org/traccar/database/SimpleObjectManager.java b/src/main/java/org/traccar/database/SimpleObjectManager.java
deleted file mode 100644
index 78701720f..000000000
--- a/src/main/java/org/traccar/database/SimpleObjectManager.java
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Copyright 2017 - 2020 Anton Tananaev (anton@traccar.org)
- * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.database;
-
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.traccar.Context;
-import org.traccar.model.BaseModel;
-import org.traccar.model.Permission;
-import org.traccar.model.User;
-import org.traccar.storage.StorageException;
-
-public abstract class SimpleObjectManager<T extends BaseModel> extends BaseObjectManager<T>
-        implements ManagableObjects {
-
-    private static final Logger LOGGER = LoggerFactory.getLogger(SimpleObjectManager.class);
-
-    private Map<Long, Set<Long>> userItems;
-
-    protected SimpleObjectManager(DataManager dataManager, Class<T> baseClass) {
-        super(dataManager, baseClass);
-    }
-
-    @Override
-    public final Set<Long> getUserItems(long userId) {
-        try {
-            readLock();
-            Set<Long> result = userItems.get(userId);
-            if (result != null) {
-                return new HashSet<>(result);
-            } else {
-                return new HashSet<>();
-            }
-        } finally {
-            readUnlock();
-        }
-    }
-
-    @Override
-    public Set<Long> getManagedItems(long userId) {
-        Set<Long> result = getUserItems(userId);
-        for (long managedUserId : Context.getUsersManager().getUserItems(userId)) {
-            result.addAll(getUserItems(managedUserId));
-        }
-        return result;
-    }
-
-    public final boolean checkItemPermission(long userId, long itemId) {
-        return getUserItems(userId).contains(itemId);
-    }
-
-    @Override
-    public void refreshItems() {
-        super.refreshItems();
-        refreshUserItems();
-    }
-
-    public final void refreshUserItems() {
-        if (getDataManager() != null) {
-            try {
-                writeLock();
-                userItems = new ConcurrentHashMap<>();
-                for (Permission permission : getDataManager().getPermissions(User.class, getBaseClass())) {
-                    Set<Long> items = userItems.computeIfAbsent(permission.getOwnerId(), key -> new HashSet<>());
-                    items.add(permission.getPropertyId());
-                }
-            } catch (StorageException | ClassNotFoundException error) {
-                LOGGER.warn("Error getting permissions", error);
-            } finally {
-                writeUnlock();
-            }
-        }
-    }
-
-    @Override
-    public void removeItem(long itemId) throws StorageException {
-        super.removeItem(itemId);
-        refreshUserItems();
-    }
-
-}
diff --git a/src/main/java/org/traccar/database/StatisticsManager.java b/src/main/java/org/traccar/database/StatisticsManager.java
index 3579ce7a5..445e53e7c 100644
--- a/src/main/java/org/traccar/database/StatisticsManager.java
+++ b/src/main/java/org/traccar/database/StatisticsManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,16 +19,21 @@ import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.traccar.api.security.ServiceAccountUser;
 import org.traccar.config.Config;
 import org.traccar.config.Keys;
 import org.traccar.helper.DateUtil;
 import org.traccar.model.Statistics;
+import org.traccar.storage.Storage;
 import org.traccar.storage.StorageException;
-
-import javax.inject.Inject;
-import javax.ws.rs.client.Client;
-import javax.ws.rs.client.Entity;
-import javax.ws.rs.core.Form;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import jakarta.ws.rs.client.Client;
+import jakarta.ws.rs.client.Entity;
+import jakarta.ws.rs.core.Form;
 import java.util.Calendar;
 import java.util.Date;
 import java.util.HashMap;
@@ -37,6 +42,7 @@ import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.atomic.AtomicInteger;
 
+@Singleton
 public class StatisticsManager {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(StatisticsManager.class);
@@ -44,7 +50,7 @@ public class StatisticsManager {
     private static final int SPLIT_MODE = Calendar.DAY_OF_MONTH;
 
     private final Config config;
-    private final DataManager dataManager;
+    private final Storage storage;
     private final Client client;
     private final ObjectMapper objectMapper;
 
@@ -52,6 +58,7 @@ public class StatisticsManager {
 
     private final Set<Long> users = new HashSet<>();
     private final Map<Long, String> deviceProtocols = new HashMap<>();
+    private final Map<Long, Integer> deviceMessages = new HashMap<>();
 
     private int requests;
     private int messagesReceived;
@@ -62,9 +69,9 @@ public class StatisticsManager {
     private int geolocationRequests;
 
     @Inject
-    public StatisticsManager(Config config, DataManager dataManager, Client client, ObjectMapper objectMapper) {
+    public StatisticsManager(Config config, Storage storage, Client client, ObjectMapper objectMapper) {
         this.config = config;
-        this.dataManager = dataManager;
+        this.storage = storage;
         this.client = client;
         this.objectMapper = objectMapper;
     }
@@ -93,8 +100,11 @@ public class StatisticsManager {
                     statistics.setProtocols(protocols);
                 }
 
+                statistics.set("modern", config.getString(Keys.WEB_PATH).contains("modern"));
+
                 users.clear();
                 deviceProtocols.clear();
+                deviceMessages.clear();
                 requests = 0;
                 messagesReceived = 0;
                 messagesStored = 0;
@@ -105,7 +115,7 @@ public class StatisticsManager {
             }
 
             try {
-                dataManager.addObject(statistics);
+                storage.addObject(statistics, new Request(new Columns.Exclude("id")));
             } catch (StorageException e) {
                 LOGGER.warn("Error saving statistics", e);
             }
@@ -133,6 +143,13 @@ public class StatisticsManager {
                         LOGGER.warn("Failed to serialize protocols", e);
                     }
                 }
+                if (!statistics.getAttributes().isEmpty()) {
+                    try {
+                        form.param("attributes", objectMapper.writeValueAsString(statistics.getAttributes()));
+                    } catch (JsonProcessingException e) {
+                        LOGGER.warn("Failed to serialize attributes", e);
+                    }
+                }
 
                 client.target(url).request().async().post(Entity.form(form));
             }
@@ -142,7 +159,7 @@ public class StatisticsManager {
     public synchronized void registerRequest(long userId) {
         checkSplit();
         requests += 1;
-        if (userId != 0) {
+        if (userId != 0 && userId != ServiceAccountUser.ID) {
             users.add(userId);
         }
     }
@@ -157,9 +174,14 @@ public class StatisticsManager {
         messagesStored += 1;
         if (deviceId != 0) {
             deviceProtocols.put(deviceId, protocol);
+            deviceMessages.merge(deviceId, 1, Integer::sum);
         }
     }
 
+    public synchronized int messageStoredCount(long deviceId) {
+        return deviceMessages.getOrDefault(deviceId, 0);
+    }
+
     public synchronized void registerMail() {
         checkSplit();
         mailSent += 1;
diff --git a/src/main/java/org/traccar/database/UsersManager.java b/src/main/java/org/traccar/database/UsersManager.java
deleted file mode 100644
index 31759dc8b..000000000
--- a/src/main/java/org/traccar/database/UsersManager.java
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * Copyright 2017 - 2020 Anton Tananaev (anton@traccar.org)
- * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.database;
-
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-
-import org.traccar.model.User;
-import org.traccar.storage.StorageException;
-
-public class UsersManager extends SimpleObjectManager<User> {
-
-    private Map<String, User> usersTokens;
-
-    public UsersManager(DataManager dataManager) {
-        super(dataManager, User.class);
-        if (usersTokens == null) {
-            usersTokens = new ConcurrentHashMap<>();
-        }
-    }
-
-    private void putToken(User user) {
-        if (usersTokens == null) {
-            usersTokens = new ConcurrentHashMap<>();
-        }
-        if (user.getToken() != null) {
-            usersTokens.put(user.getToken(), user);
-        }
-    }
-
-    @Override
-    protected void addNewItem(User user) {
-        super.addNewItem(user);
-        putToken(user);
-    }
-
-    @Override
-    protected void updateCachedItem(User user) {
-        User cachedUser = getById(user.getId());
-        super.updateCachedItem(user);
-        putToken(user);
-        if (cachedUser.getToken() != null && !cachedUser.getToken().equals(user.getToken())) {
-            usersTokens.remove(cachedUser.getToken());
-        }
-    }
-
-    @Override
-    public void updateItem(User user) throws StorageException {
-        if (user.getHashedPassword() != null) {
-            getDataManager().updateUserPassword(user);
-        }
-        super.updateItem(user);
-    }
-
-    @Override
-    protected void removeCachedItem(long userId) {
-        User cachedUser = getById(userId);
-        if (cachedUser != null) {
-            String userToken = cachedUser.getToken();
-            super.removeCachedItem(userId);
-            if (userToken != null) {
-                usersTokens.remove(userToken);
-            }
-        }
-    }
-
-    @Override
-    public Set<Long> getManagedItems(long userId) {
-        Set<Long> result = getUserItems(userId);
-        result.add(userId);
-        return result;
-    }
-
-    public User getUserByToken(String token) {
-        return usersTokens.get(token);
-    }
-
-}
diff --git a/src/main/java/org/traccar/forward/AmqpClient.java b/src/main/java/org/traccar/forward/AmqpClient.java
new file mode 100644
index 000000000..361cfffee
--- /dev/null
+++ b/src/main/java/org/traccar/forward/AmqpClient.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.forward;
+
+import com.rabbitmq.client.BuiltinExchangeType;
+import com.rabbitmq.client.Channel;
+import com.rabbitmq.client.Connection;
+import com.rabbitmq.client.ConnectionFactory;
+import com.rabbitmq.client.MessageProperties;
+
+import java.io.IOException;
+import java.net.URISyntaxException;
+import java.security.KeyManagementException;
+import java.security.NoSuchAlgorithmException;
+import java.util.concurrent.TimeoutException;
+
+public class AmqpClient {
+    private final Channel channel;
+    private final String exchange;
+    private final String topic;
+
+    AmqpClient(String connectionUrl, String exchange, String topic) {
+        this.exchange = exchange;
+        this.topic = topic;
+
+        ConnectionFactory factory = new ConnectionFactory();
+        try {
+            factory.setUri(connectionUrl);
+        } catch (NoSuchAlgorithmException | URISyntaxException | KeyManagementException e) {
+            throw new RuntimeException("Error while setting URI for RabbitMQ connection factory", e);
+        }
+
+        try {
+            Connection connection = factory.newConnection();
+            channel = connection.createChannel();
+            channel.exchangeDeclare(exchange, BuiltinExchangeType.TOPIC, true);
+        } catch (IOException | TimeoutException e) {
+            throw new RuntimeException("Error while creating and configuring RabbitMQ channel", e);
+        }
+    }
+
+    public void publishMessage(String message) throws IOException {
+        channel.basicPublish(exchange, topic, MessageProperties.PERSISTENT_TEXT_PLAIN, message.getBytes());
+    }
+}
diff --git a/src/main/java/org/traccar/forward/EventData.java b/src/main/java/org/traccar/forward/EventData.java
new file mode 100644
index 000000000..4471b10b3
--- /dev/null
+++ b/src/main/java/org/traccar/forward/EventData.java
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.forward;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import org.traccar.model.Device;
+import org.traccar.model.Event;
+import org.traccar.model.Geofence;
+import org.traccar.model.Maintenance;
+import org.traccar.model.Position;
+
+@JsonInclude(JsonInclude.Include.NON_NULL)
+public class EventData {
+
+    private Event event;
+
+    public Event getEvent() {
+        return event;
+    }
+
+    public void setEvent(Event event) {
+        this.event = event;
+    }
+
+    private Position position;
+
+    public Position getPosition() {
+        return position;
+    }
+
+    public void setPosition(Position position) {
+        this.position = position;
+    }
+
+    private Device device;
+
+    public Device getDevice() {
+        return device;
+    }
+
+    public void setDevice(Device device) {
+        this.device = device;
+    }
+
+    private Geofence geofence;
+
+    public Geofence getGeofence() {
+        return geofence;
+    }
+
+    public void setGeofence(Geofence geofence) {
+        this.geofence = geofence;
+    }
+
+    private Maintenance maintenance;
+
+    public Maintenance getMaintenance() {
+        return maintenance;
+    }
+
+    public void setMaintenance(Maintenance maintenance) {
+        this.maintenance = maintenance;
+    }
+
+}
diff --git a/src/main/java/org/traccar/database/ManagableObjects.java b/src/main/java/org/traccar/forward/EventForwarder.java
index ec9549493..1f991c0b5 100644
--- a/src/main/java/org/traccar/database/ManagableObjects.java
+++ b/src/main/java/org/traccar/forward/EventForwarder.java
@@ -1,6 +1,5 @@
 /*
- * Copyright 2017 Anton Tananaev (anton@traccar.org)
- * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,14 +13,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.traccar.database;
-
-import java.util.Set;
-
-public interface ManagableObjects {
-
-    Set<Long> getUserItems(long userId);
-
-    Set<Long> getManagedItems(long userId);
+package org.traccar.forward;
 
+public interface EventForwarder {
+    void forward(EventData eventData, ResultHandler resultHandler);
 }
diff --git a/src/main/java/org/traccar/forward/EventForwarderAmqp.java b/src/main/java/org/traccar/forward/EventForwarderAmqp.java
new file mode 100644
index 000000000..5c38a4459
--- /dev/null
+++ b/src/main/java/org/traccar/forward/EventForwarderAmqp.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.forward;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+
+import java.io.IOException;
+
+public class EventForwarderAmqp implements EventForwarder {
+
+    private final AmqpClient amqpClient;
+    private final ObjectMapper objectMapper;
+
+    public EventForwarderAmqp(Config config, ObjectMapper objectMapper) {
+        String connectionUrl = config.getString(Keys.EVENT_FORWARD_URL);
+        String exchange = config.getString(Keys.EVENT_FORWARD_EXCHANGE);
+        String topic = config.getString(Keys.EVENT_FORWARD_TOPIC);
+        this.objectMapper = objectMapper;
+        amqpClient = new AmqpClient(connectionUrl, exchange, topic);
+    }
+
+    @Override
+    public void forward(EventData eventData, ResultHandler resultHandler) {
+        try {
+            String value = objectMapper.writeValueAsString(eventData);
+            amqpClient.publishMessage(value);
+            resultHandler.onResult(true, null);
+        } catch (IOException e) {
+            resultHandler.onResult(false, e);
+        }
+    }
+}
diff --git a/src/main/java/org/traccar/forward/EventForwarderJson.java b/src/main/java/org/traccar/forward/EventForwarderJson.java
new file mode 100644
index 000000000..df53d3d46
--- /dev/null
+++ b/src/main/java/org/traccar/forward/EventForwarderJson.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.forward;
+
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+
+import jakarta.ws.rs.client.Client;
+import jakarta.ws.rs.client.Entity;
+import jakarta.ws.rs.client.InvocationCallback;
+import jakarta.ws.rs.core.Response;
+
+public class EventForwarderJson implements EventForwarder {
+
+    private final String url;
+    private final String header;
+
+    private final Client client;
+
+    public EventForwarderJson(Config config, Client client) {
+        this.client = client;
+        url = config.getString(Keys.EVENT_FORWARD_URL);
+        header = config.getString(Keys.EVENT_FORWARD_HEADERS);
+    }
+
+    @Override
+    public void forward(EventData eventData, ResultHandler resultHandler) {
+        var requestBuilder = client.target(url).request();
+
+        if (header != null && !header.isEmpty()) {
+            for (String line: header.split("\\r?\\n")) {
+                String[] values = line.split(":", 2);
+                requestBuilder.header(values[0].trim(), values[1].trim());
+            }
+        }
+
+        requestBuilder.async().post(Entity.json(eventData), new InvocationCallback<Response>() {
+            @Override
+            public void completed(Response response) {
+                if (response.getStatusInfo().getFamily() == Response.Status.Family.SUCCESSFUL) {
+                    resultHandler.onResult(true, null);
+                } else {
+                    int code = response.getStatusInfo().getStatusCode();
+                    resultHandler.onResult(false, new RuntimeException("HTTP code " + code));
+                }
+            }
+
+            @Override
+            public void failed(Throwable throwable) {
+                resultHandler.onResult(false, throwable);
+            }
+        });
+    }
+
+}
diff --git a/src/main/java/org/traccar/forward/EventForwarderKafka.java b/src/main/java/org/traccar/forward/EventForwarderKafka.java
new file mode 100644
index 000000000..e65c3a51b
--- /dev/null
+++ b/src/main/java/org/traccar/forward/EventForwarderKafka.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.forward;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.apache.kafka.clients.producer.KafkaProducer;
+import org.apache.kafka.clients.producer.Producer;
+import org.apache.kafka.clients.producer.ProducerRecord;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+
+import java.util.Properties;
+
+public class EventForwarderKafka implements EventForwarder {
+
+    private final Producer<String, String> producer;
+    private final ObjectMapper objectMapper;
+
+    private final String topic;
+
+    public EventForwarderKafka(Config config, ObjectMapper objectMapper) {
+        this.objectMapper = objectMapper;
+        Properties properties = new Properties();
+        properties.put("bootstrap.servers", config.getString(Keys.EVENT_FORWARD_URL));
+        properties.put("acks", "all");
+        properties.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
+        properties.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");
+        producer = new KafkaProducer<>(properties);
+        topic = config.getString(Keys.EVENT_FORWARD_TOPIC);
+    }
+
+    @Override
+    public void forward(EventData eventData, ResultHandler resultHandler) {
+        try {
+            String key = Long.toString(eventData.getDevice().getId());
+            String value = objectMapper.writeValueAsString(eventData);
+            producer.send(new ProducerRecord<>(topic, key, value));
+            resultHandler.onResult(true, null);
+        } catch (JsonProcessingException e) {
+            resultHandler.onResult(false, e);
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/forward/EventForwarderMqtt.java b/src/main/java/org/traccar/forward/EventForwarderMqtt.java
new file mode 100644
index 000000000..7f4e29384
--- /dev/null
+++ b/src/main/java/org/traccar/forward/EventForwarderMqtt.java
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2022 - 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.forward;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.hivemq.client.mqtt.datatypes.MqttQos;
+import com.hivemq.client.mqtt.mqtt5.Mqtt5AsyncClient;
+import com.hivemq.client.mqtt.mqtt5.Mqtt5Client;
+import com.hivemq.client.mqtt.mqtt5.message.auth.Mqtt5SimpleAuth;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.UUID;
+
+public class EventForwarderMqtt implements EventForwarder {
+
+    private final Mqtt5AsyncClient client;
+    private final ObjectMapper objectMapper;
+
+    private final String topic;
+
+    public EventForwarderMqtt(Config config, ObjectMapper objectMapper) {
+        URI url;
+        try {
+            url = new URI(config.getString(Keys.EVENT_FORWARD_URL));
+        } catch (URISyntaxException e) {
+            throw new RuntimeException(e);
+        }
+
+        String userInfo = url.getUserInfo();
+        Mqtt5SimpleAuth simpleAuth = null;
+        if (userInfo != null) {
+            int delimiter = userInfo.indexOf(':');
+            if (delimiter == -1) {
+                throw new IllegalArgumentException("Wrong credentials. Should be in format \"username:password\"");
+            } else {
+                simpleAuth = Mqtt5SimpleAuth.builder()
+                        .username(userInfo.substring(0, delimiter++))
+                        .password(userInfo.substring(delimiter).getBytes())
+                        .build();
+            }
+        }
+
+        String host = url.getHost();
+        int port = url.getPort();
+        client = Mqtt5Client.builder()
+                .identifier("traccar-" + UUID.randomUUID())
+                .serverHost(host)
+                .serverPort(port)
+                .simpleAuth(simpleAuth)
+                .automaticReconnectWithDefaultConfig()
+                .buildAsync();
+
+        client.connectWith()
+                .send()
+                .whenComplete((message, e) -> {
+                    if (e != null) {
+                        throw new RuntimeException(e);
+                    }
+                });
+
+        this.objectMapper = objectMapper;
+        topic = config.getString(Keys.EVENT_FORWARD_TOPIC);
+    }
+
+    @Override
+    public void forward(EventData eventData, ResultHandler resultHandler) {
+        byte[] payload;
+        try {
+            payload = objectMapper.writeValueAsString(eventData).getBytes();
+        } catch (JsonProcessingException e) {
+            resultHandler.onResult(false, e);
+            return;
+        }
+
+        client.publishWith()
+                .topic(topic)
+                .qos(MqttQos.AT_LEAST_ONCE)
+                .payload(payload)
+                .send()
+                .whenComplete((message, e) -> resultHandler.onResult(e == null, e));
+    }
+
+}
diff --git a/src/main/java/org/traccar/forward/NetworkForwarder.java b/src/main/java/org/traccar/forward/NetworkForwarder.java
new file mode 100644
index 000000000..86c9a77f3
--- /dev/null
+++ b/src/main/java/org/traccar/forward/NetworkForwarder.java
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.forward;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.io.IOException;
+import java.net.DatagramPacket;
+import java.net.DatagramSocket;
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.Socket;
+import java.util.HashMap;
+import java.util.Map;
+
+@Singleton
+public class NetworkForwarder {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(NetworkForwarder.class);
+
+    private final InetAddress destination;
+    private final DatagramSocket connectionUdp;
+    private final Map<InetSocketAddress, Socket> connectionsTcp = new HashMap<>();
+
+    @Inject
+    public NetworkForwarder(Config config) throws IOException {
+        destination = InetAddress.getByName(config.getString(Keys.SERVER_FORWARD));
+        connectionUdp = new DatagramSocket();
+    }
+
+    public void forward(InetSocketAddress source, int port, boolean datagram, byte[] data) {
+        try {
+            if (datagram) {
+                connectionUdp.send(new DatagramPacket(data, data.length, destination, port));
+            } else {
+                Socket connectionTcp = connectionsTcp.get(source);
+                if (connectionTcp == null || connectionTcp.isClosed()) {
+                    connectionTcp = new Socket(destination, port);
+                    connectionsTcp.put(source, connectionTcp);
+                }
+                connectionTcp.getOutputStream().write(data);
+            }
+        } catch (IOException e) {
+            LOGGER.warn("Network forwarding error", e);
+        }
+    }
+
+    public void disconnect(InetSocketAddress source) {
+        Socket connectionTcp = connectionsTcp.remove(source);
+        if (connectionTcp != null) {
+            try {
+                connectionTcp.close();
+            } catch (IOException e) {
+                LOGGER.warn("Connection close error", e);
+            }
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/forward/PositionData.java b/src/main/java/org/traccar/forward/PositionData.java
new file mode 100644
index 000000000..784cf52f5
--- /dev/null
+++ b/src/main/java/org/traccar/forward/PositionData.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.forward;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import org.traccar.model.Device;
+import org.traccar.model.Position;
+
+@JsonInclude(JsonInclude.Include.NON_NULL)
+public class PositionData {
+
+    private Position position;
+
+    public Position getPosition() {
+        return position;
+    }
+
+    public void setPosition(Position position) {
+        this.position = position;
+    }
+
+    private Device device;
+
+    public Device getDevice() {
+        return device;
+    }
+
+    public void setDevice(Device device) {
+        this.device = device;
+    }
+
+}
diff --git a/src/main/java/org/traccar/forward/PositionForwarder.java b/src/main/java/org/traccar/forward/PositionForwarder.java
new file mode 100644
index 000000000..58bd1dcc7
--- /dev/null
+++ b/src/main/java/org/traccar/forward/PositionForwarder.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.forward;
+
+public interface PositionForwarder {
+    void forward(PositionData positionData, ResultHandler resultHandler);
+}
diff --git a/src/main/java/org/traccar/forward/PositionForwarderAmqp.java b/src/main/java/org/traccar/forward/PositionForwarderAmqp.java
new file mode 100644
index 000000000..3996bda15
--- /dev/null
+++ b/src/main/java/org/traccar/forward/PositionForwarderAmqp.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.forward;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+
+import java.io.IOException;
+
+public class PositionForwarderAmqp implements PositionForwarder {
+
+    private final AmqpClient amqpClient;
+    private final ObjectMapper objectMapper;
+
+    public PositionForwarderAmqp(Config config, ObjectMapper objectMapper) {
+        String connectionUrl = config.getString(Keys.FORWARD_URL);
+        String exchange = config.getString(Keys.FORWARD_EXCHANGE);
+        String topic = config.getString(Keys.FORWARD_TOPIC);
+        amqpClient = new AmqpClient(connectionUrl, exchange, topic);
+        this.objectMapper = objectMapper;
+    }
+
+    @Override
+    public void forward(PositionData positionData, ResultHandler resultHandler) {
+        try {
+            String value = objectMapper.writeValueAsString(positionData);
+            amqpClient.publishMessage(value);
+            resultHandler.onResult(true, null);
+        } catch (IOException e) {
+            resultHandler.onResult(false, e);
+        }
+    }
+}
diff --git a/src/main/java/org/traccar/forward/PositionForwarderJson.java b/src/main/java/org/traccar/forward/PositionForwarderJson.java
new file mode 100644
index 000000000..a0ad8ffd0
--- /dev/null
+++ b/src/main/java/org/traccar/forward/PositionForwarderJson.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.forward;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+
+import jakarta.ws.rs.client.Client;
+import jakarta.ws.rs.client.Entity;
+import jakarta.ws.rs.client.InvocationCallback;
+import jakarta.ws.rs.core.HttpHeaders;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
+
+public class PositionForwarderJson implements PositionForwarder {
+
+    private final String url;
+    private final String header;
+
+    private final Client client;
+    private final ObjectMapper objectMapper;
+
+    public PositionForwarderJson(Config config, Client client, ObjectMapper objectMapper) {
+        this.client = client;
+        this.objectMapper = objectMapper;
+        this.url = config.getString(Keys.FORWARD_URL);
+        this.header = config.getString(Keys.FORWARD_HEADER);
+    }
+
+    @Override
+    public void forward(PositionData positionData, ResultHandler resultHandler) {
+        var requestBuilder = client.target(url).request();
+
+        MediaType mediaType = MediaType.APPLICATION_JSON_TYPE;
+        if (header != null && !header.isEmpty()) {
+            for (String line: header.split("\\r?\\n")) {
+                String[] values = line.split(":", 2);
+                String headerName = values[0].trim();
+                String headerValue = values[1].trim();
+                if (headerName.equals(HttpHeaders.CONTENT_TYPE)) {
+                    mediaType = MediaType.valueOf(headerValue);
+                } else {
+                    requestBuilder.header(headerName, headerValue);
+                }
+            }
+        }
+
+        try {
+            var entity = Entity.entity(objectMapper.writeValueAsString(positionData), mediaType);
+            requestBuilder.async().post(entity, new InvocationCallback<Response>() {
+                @Override
+                public void completed(Response response) {
+                    if (response.getStatusInfo().getFamily() == Response.Status.Family.SUCCESSFUL) {
+                        resultHandler.onResult(true, null);
+                    } else {
+                        int code = response.getStatusInfo().getStatusCode();
+                        resultHandler.onResult(false, new RuntimeException("HTTP code " + code));
+                    }
+                }
+
+                @Override
+                public void failed(Throwable throwable) {
+                    resultHandler.onResult(false, throwable);
+                }
+            });
+        } catch (JsonProcessingException e) {
+            resultHandler.onResult(false, e);
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/forward/PositionForwarderKafka.java b/src/main/java/org/traccar/forward/PositionForwarderKafka.java
new file mode 100644
index 000000000..7432e9364
--- /dev/null
+++ b/src/main/java/org/traccar/forward/PositionForwarderKafka.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.forward;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.apache.kafka.clients.producer.KafkaProducer;
+import org.apache.kafka.clients.producer.Producer;
+import org.apache.kafka.clients.producer.ProducerRecord;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+
+import java.util.Properties;
+
+public class PositionForwarderKafka implements PositionForwarder {
+
+    private final Producer<String, String> producer;
+    private final ObjectMapper objectMapper;
+
+    private final String topic;
+
+    public PositionForwarderKafka(Config config, ObjectMapper objectMapper) {
+        this.objectMapper = objectMapper;
+        Properties properties = new Properties();
+        properties.put("bootstrap.servers", config.getString(Keys.FORWARD_URL));
+        properties.put("acks", "all");
+        properties.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
+        properties.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");
+        producer = new KafkaProducer<>(properties);
+        topic = config.getString(Keys.FORWARD_TOPIC);
+    }
+
+    @Override
+    public void forward(PositionData positionData, ResultHandler resultHandler) {
+        try {
+            String key = Long.toString(positionData.getDevice().getId());
+            String value = objectMapper.writeValueAsString(positionData);
+            producer.send(new ProducerRecord<>(topic, key, value));
+            resultHandler.onResult(true, null);
+        } catch (JsonProcessingException e) {
+            resultHandler.onResult(false, e);
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/forward/PositionForwarderRedis.java b/src/main/java/org/traccar/forward/PositionForwarderRedis.java
new file mode 100644
index 000000000..539d247b6
--- /dev/null
+++ b/src/main/java/org/traccar/forward/PositionForwarderRedis.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.forward;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import redis.clients.jedis.Jedis;
+
+public class PositionForwarderRedis implements PositionForwarder {
+
+    private final String url;
+
+    private final ObjectMapper objectMapper;
+
+    public PositionForwarderRedis(Config config, ObjectMapper objectMapper) {
+        this.objectMapper = objectMapper;
+        this.url = config.getString(Keys.FORWARD_URL);
+    }
+
+    @Override
+    public void forward(PositionData positionData, ResultHandler resultHandler) {
+
+        try {
+            String key = "positions." + positionData.getDevice().getUniqueId();
+            String value = objectMapper.writeValueAsString(positionData.getPosition());
+            try (Jedis jedis = new Jedis(url)) {
+                jedis.lpush(key, value);
+            }
+            resultHandler.onResult(true, null);
+        } catch (JsonProcessingException e) {
+            resultHandler.onResult(false, e);
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/forward/PositionForwarderUrl.java b/src/main/java/org/traccar/forward/PositionForwarderUrl.java
new file mode 100644
index 000000000..33474d40b
--- /dev/null
+++ b/src/main/java/org/traccar/forward/PositionForwarderUrl.java
@@ -0,0 +1,166 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.forward;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.helper.Checksum;
+import org.traccar.model.Device;
+import org.traccar.model.Position;
+
+import jakarta.ws.rs.client.Client;
+import jakarta.ws.rs.client.InvocationCallback;
+import jakarta.ws.rs.core.Response;
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+import java.util.Calendar;
+import java.util.Formatter;
+import java.util.Locale;
+import java.util.TimeZone;
+
+public class PositionForwarderUrl implements PositionForwarder {
+
+    private final String url;
+    private final String header;
+
+    private final Client client;
+    private final ObjectMapper objectMapper;
+
+    public PositionForwarderUrl(Config config, Client client, ObjectMapper objectMapper) {
+        this.client = client;
+        this.objectMapper = objectMapper;
+        this.url = config.getString(Keys.FORWARD_URL);
+        this.header = config.getString(Keys.FORWARD_HEADER);
+    }
+
+    @Override
+    public void forward(PositionData positionData, ResultHandler resultHandler) {
+        try {
+            String url = formatRequest(positionData);
+            var requestBuilder = client.target(url).request();
+
+            if (header != null && !header.isEmpty()) {
+                for (String line: header.split("\\r?\\n")) {
+                    String[] values = line.split(":", 2);
+                    String headerName = values[0].trim();
+                    String headerValue = values[1].trim();
+                    requestBuilder.header(headerName, headerValue);
+                }
+            }
+
+            requestBuilder.async().get(new InvocationCallback<Response>() {
+                @Override
+                public void completed(Response response) {
+                    if (response.getStatusInfo().getFamily() == Response.Status.Family.SUCCESSFUL) {
+                        resultHandler.onResult(true, null);
+                    } else {
+                        int code = response.getStatusInfo().getStatusCode();
+                        resultHandler.onResult(false, new RuntimeException("HTTP code " + code));
+                    }
+                }
+
+                @Override
+                public void failed(Throwable throwable) {
+                    resultHandler.onResult(false, throwable);
+                }
+            });
+        } catch (UnsupportedEncodingException | JsonProcessingException e) {
+            resultHandler.onResult(false, e);
+        }
+    }
+
+    public String formatRequest(
+            PositionData positionData) throws UnsupportedEncodingException, JsonProcessingException {
+
+        Position position = positionData.getPosition();
+        Device device = positionData.getDevice();
+
+        String request = url
+                .replace("{name}", URLEncoder.encode(device.getName(), StandardCharsets.UTF_8))
+                .replace("{uniqueId}", device.getUniqueId())
+                .replace("{status}", device.getStatus())
+                .replace("{deviceId}", String.valueOf(position.getDeviceId()))
+                .replace("{protocol}", String.valueOf(position.getProtocol()))
+                .replace("{deviceTime}", String.valueOf(position.getDeviceTime().getTime()))
+                .replace("{fixTime}", String.valueOf(position.getFixTime().getTime()))
+                .replace("{valid}", String.valueOf(position.getValid()))
+                .replace("{latitude}", String.valueOf(position.getLatitude()))
+                .replace("{longitude}", String.valueOf(position.getLongitude()))
+                .replace("{altitude}", String.valueOf(position.getAltitude()))
+                .replace("{speed}", String.valueOf(position.getSpeed()))
+                .replace("{course}", String.valueOf(position.getCourse()))
+                .replace("{accuracy}", String.valueOf(position.getAccuracy()))
+                .replace("{statusCode}", calculateStatus(position));
+
+        if (position.getAddress() != null) {
+            request = request.replace(
+                    "{address}", URLEncoder.encode(position.getAddress(), StandardCharsets.UTF_8));
+        }
+
+        if (request.contains("{attributes}")) {
+            String attributes = objectMapper.writeValueAsString(position.getAttributes());
+            request = request.replace(
+                    "{attributes}", URLEncoder.encode(attributes, StandardCharsets.UTF_8));
+        }
+
+        if (request.contains("{gprmc}")) {
+            request = request.replace("{gprmc}", formatSentence(position));
+        }
+
+        return request;
+    }
+
+    private static String formatSentence(Position position) {
+
+        StringBuilder s = new StringBuilder("$GPRMC,");
+
+        try (Formatter f = new Formatter(s, Locale.ENGLISH)) {
+
+            Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"), Locale.ENGLISH);
+            calendar.setTimeInMillis(position.getFixTime().getTime());
+
+            f.format("%1$tH%1$tM%1$tS.%1$tL,A,", calendar);
+
+            double lat = position.getLatitude();
+            double lon = position.getLongitude();
+
+            f.format("%02d%07.4f,%c,", (int) Math.abs(lat), Math.abs(lat) % 1 * 60, lat < 0 ? 'S' : 'N');
+            f.format("%03d%07.4f,%c,", (int) Math.abs(lon), Math.abs(lon) % 1 * 60, lon < 0 ? 'W' : 'E');
+
+            f.format("%.2f,%.2f,", position.getSpeed(), position.getCourse());
+            f.format("%1$td%1$tm%1$ty,,", calendar);
+        }
+
+        s.append(Checksum.nmea(s.substring(1)));
+
+        return s.toString();
+    }
+
+    // OpenGTS status code
+    private String calculateStatus(Position position) {
+        if (position.hasAttribute(Position.KEY_ALARM)) {
+            return "0xF841"; // STATUS_PANIC_ON
+        } else if (position.getSpeed() < 1.0) {
+            return "0xF020"; // STATUS_LOCATION
+        } else {
+            return "0xF11C"; // STATUS_MOTION_MOVING
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/forward/ResultHandler.java b/src/main/java/org/traccar/forward/ResultHandler.java
new file mode 100644
index 000000000..009daf495
--- /dev/null
+++ b/src/main/java/org/traccar/forward/ResultHandler.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.forward;
+
+public interface ResultHandler {
+    void onResult(boolean success, Throwable throwable);
+}
diff --git a/src/main/java/org/traccar/geocoder/BanGeocoder.java b/src/main/java/org/traccar/geocoder/BanGeocoder.java
index b1f0900a4..e2ff72311 100644
--- a/src/main/java/org/traccar/geocoder/BanGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/BanGeocoder.java
@@ -20,13 +20,14 @@ package org.traccar.geocoder;
  * API documentation: https://adresse.data.gouv.fr/api
  */
 
-import javax.json.JsonArray;
-import javax.json.JsonObject;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
 
 public class BanGeocoder extends JsonGeocoder {
 
-    public BanGeocoder(int cacheSize, AddressFormat addressFormat) {
-        super("https://api-adresse.data.gouv.fr/reverse/?lat=%f&lon=%f", cacheSize, addressFormat);
+    public BanGeocoder(Client client, int cacheSize, AddressFormat addressFormat) {
+        super(client, "https://api-adresse.data.gouv.fr/reverse/?lat=%f&lon=%f", cacheSize, addressFormat);
     }
 
     @Override
diff --git a/src/main/java/org/traccar/geocoder/BingMapsGeocoder.java b/src/main/java/org/traccar/geocoder/BingMapsGeocoder.java
index 32a26ee0c..bc3b15ce7 100644
--- a/src/main/java/org/traccar/geocoder/BingMapsGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/BingMapsGeocoder.java
@@ -16,13 +16,14 @@
  */
 package org.traccar.geocoder;
 
-import javax.json.JsonArray;
-import javax.json.JsonObject;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
 
 public class BingMapsGeocoder extends JsonGeocoder {
 
-    public BingMapsGeocoder(String url, String key, int cacheSize, AddressFormat addressFormat) {
-        super(url + "/Locations/%f,%f?key=" + key + "&include=ciso2", cacheSize, addressFormat);
+    public BingMapsGeocoder(Client client, String url, String key, int cacheSize, AddressFormat addressFormat) {
+        super(client, url + "/Locations/%f,%f?key=" + key + "&include=ciso2", cacheSize, addressFormat);
     }
 
     @Override
diff --git a/src/main/java/org/traccar/geocoder/FactualGeocoder.java b/src/main/java/org/traccar/geocoder/FactualGeocoder.java
index f540eb8fe..6c8891316 100644
--- a/src/main/java/org/traccar/geocoder/FactualGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/FactualGeocoder.java
@@ -16,7 +16,8 @@
  */
 package org.traccar.geocoder;
 
-import javax.json.JsonObject;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
 
 public class FactualGeocoder extends JsonGeocoder {
 
@@ -28,8 +29,8 @@ public class FactualGeocoder extends JsonGeocoder {
         return url;
     }
 
-    public FactualGeocoder(String url, String key, int cacheSize, AddressFormat addressFormat) {
-        super(formatUrl(url, key), cacheSize, addressFormat);
+    public FactualGeocoder(Client client, String url, String key, int cacheSize, AddressFormat addressFormat) {
+        super(client, formatUrl(url, key), cacheSize, addressFormat);
     }
 
     @Override
diff --git a/src/main/java/org/traccar/geocoder/GeoapifyGeocoder.java b/src/main/java/org/traccar/geocoder/GeoapifyGeocoder.java
index ef0e4c8bd..35a47bb88 100644
--- a/src/main/java/org/traccar/geocoder/GeoapifyGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/GeoapifyGeocoder.java
@@ -15,8 +15,9 @@
  */
 package org.traccar.geocoder;
 
-import javax.json.JsonArray;
-import javax.json.JsonObject;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
 
 public class GeoapifyGeocoder extends JsonGeocoder {
 
@@ -31,8 +32,8 @@ public class GeoapifyGeocoder extends JsonGeocoder {
         return url;
     }
 
-    public GeoapifyGeocoder(String key, String language, int cacheSize, AddressFormat addressFormat) {
-        super(formatUrl(key, language), cacheSize, addressFormat);
+    public GeoapifyGeocoder(Client client, String key, String language, int cacheSize, AddressFormat addressFormat) {
+        super(client, formatUrl(key, language), cacheSize, addressFormat);
     }
 
     @Override
diff --git a/src/main/java/org/traccar/geocoder/GeocodeFarmGeocoder.java b/src/main/java/org/traccar/geocoder/GeocodeFarmGeocoder.java
index 39a3300a0..80b00b3cc 100644
--- a/src/main/java/org/traccar/geocoder/GeocodeFarmGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/GeocodeFarmGeocoder.java
@@ -15,7 +15,8 @@
  */
 package org.traccar.geocoder;
 
-import javax.json.JsonObject;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
 
 public class GeocodeFarmGeocoder extends JsonGeocoder {
 
@@ -30,8 +31,9 @@ public class GeocodeFarmGeocoder extends JsonGeocoder {
         }
         return url;
     }
-    public GeocodeFarmGeocoder(String key, String language, int cacheSize, AddressFormat addressFormat) {
-        super(formatUrl(key, language), cacheSize, addressFormat);
+    public GeocodeFarmGeocoder(
+            Client client, String key, String language, int cacheSize, AddressFormat addressFormat) {
+        super(client, formatUrl(key, language), cacheSize, addressFormat);
     }
 
     @Override
diff --git a/src/main/java/org/traccar/geocoder/GeocodeXyzGeocoder.java b/src/main/java/org/traccar/geocoder/GeocodeXyzGeocoder.java
index aca360c3d..e88962e1a 100644
--- a/src/main/java/org/traccar/geocoder/GeocodeXyzGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/GeocodeXyzGeocoder.java
@@ -15,7 +15,8 @@
  */
 package org.traccar.geocoder;
 
-import javax.json.JsonObject;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
 
 public class GeocodeXyzGeocoder extends JsonGeocoder {
 
@@ -27,8 +28,8 @@ public class GeocodeXyzGeocoder extends JsonGeocoder {
         return url;
     }
 
-    public GeocodeXyzGeocoder(String key, int cacheSize, AddressFormat addressFormat) {
-        super(formatUrl(key), cacheSize, addressFormat);
+    public GeocodeXyzGeocoder(Client client, String key, int cacheSize, AddressFormat addressFormat) {
+        super(client, formatUrl(key), cacheSize, addressFormat);
     }
 
     @Override
diff --git a/src/main/java/org/traccar/geocoder/Geocoder.java b/src/main/java/org/traccar/geocoder/Geocoder.java
index 587a27520..f4abe871a 100644
--- a/src/main/java/org/traccar/geocoder/Geocoder.java
+++ b/src/main/java/org/traccar/geocoder/Geocoder.java
@@ -15,6 +15,8 @@
  */
 package org.traccar.geocoder;
 
+import org.traccar.database.StatisticsManager;
+
 public interface Geocoder {
 
     interface ReverseGeocoderCallback {
@@ -27,4 +29,6 @@ public interface Geocoder {
 
     String getAddress(double latitude, double longitude, ReverseGeocoderCallback callback);
 
+    void setStatisticsManager(StatisticsManager statisticsManager);
+
 }
diff --git a/src/main/java/org/traccar/geocoder/GisgraphyGeocoder.java b/src/main/java/org/traccar/geocoder/GisgraphyGeocoder.java
index b4881a006..062e795eb 100644
--- a/src/main/java/org/traccar/geocoder/GisgraphyGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/GisgraphyGeocoder.java
@@ -15,7 +15,8 @@
  */
 package org.traccar.geocoder;
 
-import javax.json.JsonObject;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
 
 public class GisgraphyGeocoder extends JsonGeocoder {
 
@@ -27,8 +28,8 @@ public class GisgraphyGeocoder extends JsonGeocoder {
         return url;
     }
 
-    public GisgraphyGeocoder(String url, int cacheSize, AddressFormat addressFormat) {
-        super(formatUrl(url), cacheSize, addressFormat);
+    public GisgraphyGeocoder(Client client, String url, int cacheSize, AddressFormat addressFormat) {
+        super(client, formatUrl(url), cacheSize, addressFormat);
     }
 
     @Override
diff --git a/src/main/java/org/traccar/geocoder/GoogleGeocoder.java b/src/main/java/org/traccar/geocoder/GoogleGeocoder.java
index 9494cab45..93f128b46 100644
--- a/src/main/java/org/traccar/geocoder/GoogleGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/GoogleGeocoder.java
@@ -15,9 +15,10 @@
  */
 package org.traccar.geocoder;
 
-import javax.json.JsonArray;
-import javax.json.JsonObject;
-import javax.json.JsonString;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
+import jakarta.json.JsonString;
+import jakarta.ws.rs.client.Client;
 
 public class GoogleGeocoder extends JsonGeocoder {
 
@@ -32,8 +33,8 @@ public class GoogleGeocoder extends JsonGeocoder {
         return url;
     }
 
-    public GoogleGeocoder(String key, String language, int cacheSize, AddressFormat addressFormat) {
-        super(formatUrl(key, language), cacheSize, addressFormat);
+    public GoogleGeocoder(Client client, String key, String language, int cacheSize, AddressFormat addressFormat) {
+        super(client, formatUrl(key, language), cacheSize, addressFormat);
     }
 
     @Override
diff --git a/src/main/java/org/traccar/geocoder/HereGeocoder.java b/src/main/java/org/traccar/geocoder/HereGeocoder.java
index 40390e65b..2d1bc1bf4 100644
--- a/src/main/java/org/traccar/geocoder/HereGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/HereGeocoder.java
@@ -15,7 +15,8 @@
  */
 package org.traccar.geocoder;
 
-import javax.json.JsonObject;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
 
 public class HereGeocoder extends JsonGeocoder {
 
@@ -35,8 +36,9 @@ public class HereGeocoder extends JsonGeocoder {
     }
 
     public HereGeocoder(
-            String url, String id, String key, String language, int cacheSize, AddressFormat addressFormat) {
-        super(formatUrl(url, id, key, language), cacheSize, addressFormat);
+            Client client, String url, String id, String key, String language,
+            int cacheSize, AddressFormat addressFormat) {
+        super(client, formatUrl(url, id, key, language), cacheSize, addressFormat);
     }
 
     @Override
diff --git a/src/main/java/org/traccar/geocoder/JsonGeocoder.java b/src/main/java/org/traccar/geocoder/JsonGeocoder.java
index f20aa79d6..f9b039f43 100644
--- a/src/main/java/org/traccar/geocoder/JsonGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/JsonGeocoder.java
@@ -17,14 +17,12 @@ package org.traccar.geocoder;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.traccar.Context;
-import org.traccar.Main;
 import org.traccar.database.StatisticsManager;
 
-import javax.json.JsonObject;
-import javax.ws.rs.WebApplicationException;
-import javax.ws.rs.client.Invocation;
-import javax.ws.rs.client.InvocationCallback;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.WebApplicationException;
+import jakarta.ws.rs.client.Client;
+import jakarta.ws.rs.client.InvocationCallback;
 import java.util.AbstractMap;
 import java.util.Collections;
 import java.util.LinkedHashMap;
@@ -34,16 +32,19 @@ public abstract class JsonGeocoder implements Geocoder {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(JsonGeocoder.class);
 
+    private final Client client;
     private final String url;
     private final AddressFormat addressFormat;
+    private StatisticsManager statisticsManager;
 
     private Map<Map.Entry<Double, Double>, String> cache;
 
-    public JsonGeocoder(String url, final int cacheSize, AddressFormat addressFormat) {
+    public JsonGeocoder(Client client, String url, final int cacheSize, AddressFormat addressFormat) {
+        this.client = client;
         this.url = url;
         this.addressFormat = addressFormat;
         if (cacheSize > 0) {
-            this.cache = Collections.synchronizedMap(new LinkedHashMap<Map.Entry<Double, Double>, String>() {
+            this.cache = Collections.synchronizedMap(new LinkedHashMap<>() {
                 @Override
                 protected boolean removeEldestEntry(Map.Entry eldest) {
                     return size() > cacheSize;
@@ -52,6 +53,11 @@ public abstract class JsonGeocoder implements Geocoder {
         }
     }
 
+    @Override
+    public void setStatisticsManager(StatisticsManager statisticsManager) {
+        this.statisticsManager = statisticsManager;
+    }
+
     protected String readValue(JsonObject object, String key) {
         if (object.containsKey(key) && !object.isNull(key)) {
             return object.getString(key);
@@ -97,11 +103,11 @@ public abstract class JsonGeocoder implements Geocoder {
             }
         }
 
-        if (Main.getInjector() != null) {
-            Main.getInjector().getInstance(StatisticsManager.class).registerGeocoderRequest();
+        if (statisticsManager != null) {
+            statisticsManager.registerGeocoderRequest();
         }
 
-        Invocation.Builder request = Context.getClient().target(String.format(url, latitude, longitude)).request();
+        var request = client.target(String.format(url, latitude, longitude)).request();
 
         if (callback != null) {
             request.async().get(new InvocationCallback<JsonObject>() {
diff --git a/src/main/java/org/traccar/DeviceSession.java b/src/main/java/org/traccar/geocoder/LocationIqGeocoder.java
index 322381807..f304ffeff 100644
--- a/src/main/java/org/traccar/DeviceSession.java
+++ b/src/main/java/org/traccar/geocoder/LocationIqGeocoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,30 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.traccar;
+package org.traccar.geocoder;
 
-import java.util.TimeZone;
+import jakarta.ws.rs.client.Client;
 
-public class DeviceSession {
+public class LocationIqGeocoder extends NominatimGeocoder {
 
-    private final long deviceId;
+    private static final String DEFAULT_URL = "https://us1.locationiq.com/v1/reverse.php";
 
-    public DeviceSession(long deviceId) {
-        this.deviceId = deviceId;
-    }
-
-    public long getDeviceId() {
-        return deviceId;
-    }
-
-    private TimeZone timeZone;
-
-    public void setTimeZone(TimeZone timeZone) {
-        this.timeZone = timeZone;
-    }
-
-    public TimeZone getTimeZone() {
-        return timeZone;
+    public LocationIqGeocoder(
+            Client client, String url, String key, String language, int cacheSize, AddressFormat addressFormat) {
+        super(client, url != null ? url : DEFAULT_URL, key, language, cacheSize, addressFormat);
     }
 
 }
diff --git a/src/main/java/org/traccar/geocoder/MapQuestGeocoder.java b/src/main/java/org/traccar/geocoder/MapQuestGeocoder.java
index 8dc3f76f0..1b6c8adcc 100644
--- a/src/main/java/org/traccar/geocoder/MapQuestGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/MapQuestGeocoder.java
@@ -16,8 +16,9 @@
  */
 package org.traccar.geocoder;
 
-import javax.json.JsonArray;
-import javax.json.JsonObject;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
 
 public class MapQuestGeocoder extends JsonGeocoder {
 
@@ -29,8 +30,8 @@ public class MapQuestGeocoder extends JsonGeocoder {
         return url;
     }
 
-    public MapQuestGeocoder(String url, String key, int cacheSize, AddressFormat addressFormat) {
-        super(formatUrl(url, key), cacheSize, addressFormat);
+    public MapQuestGeocoder(Client client, String url, String key, int cacheSize, AddressFormat addressFormat) {
+        super(client, formatUrl(url, key), cacheSize, addressFormat);
     }
 
     @Override
diff --git a/src/main/java/org/traccar/geocoder/MapTilerGeocoder.java b/src/main/java/org/traccar/geocoder/MapTilerGeocoder.java
index 6b688a6e8..24c9da2ad 100644
--- a/src/main/java/org/traccar/geocoder/MapTilerGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/MapTilerGeocoder.java
@@ -15,13 +15,14 @@
  */
 package org.traccar.geocoder;
 
-import javax.json.JsonArray;
-import javax.json.JsonObject;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
 
 public class MapTilerGeocoder extends JsonGeocoder {
 
-    public MapTilerGeocoder(String key, int cacheSize, AddressFormat addressFormat) {
-        super("https://api.maptiler.com/geocoding/%2$f,%1$f.json?key=" + key, cacheSize, addressFormat);
+    public MapTilerGeocoder(Client client, String key, int cacheSize, AddressFormat addressFormat) {
+        super(client, "https://api.maptiler.com/geocoding/%2$f,%1$f.json?key=" + key, cacheSize, addressFormat);
     }
 
     @Override
diff --git a/src/main/java/org/traccar/geocoder/MapboxGeocoder.java b/src/main/java/org/traccar/geocoder/MapboxGeocoder.java
index 9b987c9d8..9fa6b8d88 100644
--- a/src/main/java/org/traccar/geocoder/MapboxGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/MapboxGeocoder.java
@@ -15,9 +15,10 @@
  */
 package org.traccar.geocoder;
 
-import javax.json.JsonArray;
-import javax.json.JsonObject;
-import javax.json.JsonString;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
+import jakarta.json.JsonString;
+import jakarta.ws.rs.client.Client;
 
 public class MapboxGeocoder extends JsonGeocoder {
 
@@ -25,8 +26,8 @@ public class MapboxGeocoder extends JsonGeocoder {
         return "https://api.mapbox.com/geocoding/v5/mapbox.places/%2$f,%1$f.json?access_token=" + key;
     }
 
-    public MapboxGeocoder(String key, int cacheSize, AddressFormat addressFormat) {
-        super(formatUrl(key), cacheSize, addressFormat);
+    public MapboxGeocoder(Client client, String key, int cacheSize, AddressFormat addressFormat) {
+        super(client, formatUrl(key), cacheSize, addressFormat);
     }
 
     @Override
diff --git a/src/main/java/org/traccar/geocoder/MapmyIndiaGeocoder.java b/src/main/java/org/traccar/geocoder/MapmyIndiaGeocoder.java
index 2b70708a1..b68db07bc 100644
--- a/src/main/java/org/traccar/geocoder/MapmyIndiaGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/MapmyIndiaGeocoder.java
@@ -15,13 +15,14 @@
  */
 package org.traccar.geocoder;
 
-import javax.json.JsonArray;
-import javax.json.JsonObject;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
 
 public class MapmyIndiaGeocoder extends JsonGeocoder {
 
-    public MapmyIndiaGeocoder(String url, String key, int cacheSize, AddressFormat addressFormat) {
-        super(url + "/" + key + "/rev_geocode?lat=%f&lng=%f", cacheSize, addressFormat);
+    public MapmyIndiaGeocoder(Client client, String url, String key, int cacheSize, AddressFormat addressFormat) {
+        super(client, url + "/" + key + "/rev_geocode?lat=%f&lng=%f", cacheSize, addressFormat);
     }
 
     @Override
diff --git a/src/main/java/org/traccar/geocoder/NominatimGeocoder.java b/src/main/java/org/traccar/geocoder/NominatimGeocoder.java
index 8db25bf15..1e26d0042 100644
--- a/src/main/java/org/traccar/geocoder/NominatimGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/NominatimGeocoder.java
@@ -15,7 +15,8 @@
  */
 package org.traccar.geocoder;
 
-import javax.json.JsonObject;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
 
 public class NominatimGeocoder extends JsonGeocoder {
 
@@ -33,8 +34,9 @@ public class NominatimGeocoder extends JsonGeocoder {
         return url;
     }
 
-    public NominatimGeocoder(String url, String key, String language, int cacheSize, AddressFormat addressFormat) {
-        super(formatUrl(url, key, language), cacheSize, addressFormat);
+    public NominatimGeocoder(
+            Client client, String url, String key, String language, int cacheSize, AddressFormat addressFormat) {
+        super(client, formatUrl(url, key, language), cacheSize, addressFormat);
     }
 
     @Override
diff --git a/src/main/java/org/traccar/geocoder/OpenCageGeocoder.java b/src/main/java/org/traccar/geocoder/OpenCageGeocoder.java
index bbcc00cd0..4607fdc87 100644
--- a/src/main/java/org/traccar/geocoder/OpenCageGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/OpenCageGeocoder.java
@@ -16,8 +16,9 @@
  */
 package org.traccar.geocoder;
 
-import javax.json.JsonArray;
-import javax.json.JsonObject;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
 
 public class OpenCageGeocoder extends JsonGeocoder {
 
@@ -32,8 +33,9 @@ public class OpenCageGeocoder extends JsonGeocoder {
         return url;
     }
 
-    public OpenCageGeocoder(String url, String key, String language, int cacheSize, AddressFormat addressFormat) {
-        super(formatUrl(url, key, language), cacheSize, addressFormat);
+    public OpenCageGeocoder(
+            Client client, String url, String key, String language, int cacheSize, AddressFormat addressFormat) {
+        super(client, formatUrl(url, key, language), cacheSize, addressFormat);
     }
 
     @Override
diff --git a/src/main/java/org/traccar/geocoder/PositionStackGeocoder.java b/src/main/java/org/traccar/geocoder/PositionStackGeocoder.java
index 2674a68ca..4aed27fc5 100644
--- a/src/main/java/org/traccar/geocoder/PositionStackGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/PositionStackGeocoder.java
@@ -15,8 +15,9 @@
  */
 package org.traccar.geocoder;
 
-import javax.json.JsonArray;
-import javax.json.JsonObject;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
 
 public class PositionStackGeocoder extends JsonGeocoder {
 
@@ -24,8 +25,8 @@ public class PositionStackGeocoder extends JsonGeocoder {
         return "http://api.positionstack.com/v1/reverse?access_key=" + key + "&query=%f,%f";
     }
 
-    public PositionStackGeocoder(String key, int cacheSize, AddressFormat addressFormat) {
-        super(formatUrl(key), cacheSize, addressFormat);
+    public PositionStackGeocoder(Client client, String key, int cacheSize, AddressFormat addressFormat) {
+        super(client, formatUrl(key), cacheSize, addressFormat);
     }
 
     @Override
diff --git a/src/main/java/org/traccar/geocoder/TestGeocoder.java b/src/main/java/org/traccar/geocoder/TestGeocoder.java
new file mode 100644
index 000000000..259f13c6c
--- /dev/null
+++ b/src/main/java/org/traccar/geocoder/TestGeocoder.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.geocoder;
+
+import org.traccar.database.StatisticsManager;
+
+public class TestGeocoder implements Geocoder {
+
+    @Override
+    public void setStatisticsManager(StatisticsManager statisticsManager) {
+    }
+
+    @Override
+    public String getAddress(double latitude, double longitude, ReverseGeocoderCallback callback) {
+        String address = String.format("Location %f, %f", latitude, longitude);
+        if (callback != null) {
+            callback.onSuccess(address);
+            return null;
+        }
+        return address;
+    }
+
+}
diff --git a/src/main/java/org/traccar/geocoder/TomTomGeocoder.java b/src/main/java/org/traccar/geocoder/TomTomGeocoder.java
index 232b24396..4d452fd43 100644
--- a/src/main/java/org/traccar/geocoder/TomTomGeocoder.java
+++ b/src/main/java/org/traccar/geocoder/TomTomGeocoder.java
@@ -15,8 +15,9 @@
  */
 package org.traccar.geocoder;
 
-import javax.json.JsonArray;
-import javax.json.JsonObject;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
 
 public class TomTomGeocoder extends JsonGeocoder {
 
@@ -28,8 +29,8 @@ public class TomTomGeocoder extends JsonGeocoder {
         return url;
     }
 
-    public TomTomGeocoder(String url, String key, int cacheSize, AddressFormat addressFormat) {
-        super(formatUrl(url, key), cacheSize, addressFormat);
+    public TomTomGeocoder(Client client, String url, String key, int cacheSize, AddressFormat addressFormat) {
+        super(client, formatUrl(url, key), cacheSize, addressFormat);
     }
 
     @Override
diff --git a/src/main/java/org/traccar/geofence/GeofenceCircle.java b/src/main/java/org/traccar/geofence/GeofenceCircle.java
index 5d566f84e..59feb1730 100644
--- a/src/main/java/org/traccar/geofence/GeofenceCircle.java
+++ b/src/main/java/org/traccar/geofence/GeofenceCircle.java
@@ -18,7 +18,9 @@ package org.traccar.geofence;
 import java.text.DecimalFormat;
 import java.text.ParseException;
 
+import org.traccar.config.Config;
 import org.traccar.helper.DistanceCalculator;
+import org.traccar.model.Geofence;
 
 public class GeofenceCircle extends GeofenceGeometry {
 
@@ -44,7 +46,7 @@ public class GeofenceCircle extends GeofenceGeometry {
     }
 
     @Override
-    public boolean containsPoint(double latitude, double longitude) {
+    public boolean containsPoint(Config config, Geofence geofence, double latitude, double longitude) {
         return distanceFromCenter(latitude, longitude) <= radius;
     }
 
diff --git a/src/main/java/org/traccar/geofence/GeofenceGeometry.java b/src/main/java/org/traccar/geofence/GeofenceGeometry.java
index 2c45c22af..fadabab1c 100644
--- a/src/main/java/org/traccar/geofence/GeofenceGeometry.java
+++ b/src/main/java/org/traccar/geofence/GeofenceGeometry.java
@@ -15,11 +15,14 @@
  */
 package org.traccar.geofence;
 
+import org.traccar.config.Config;
+import org.traccar.model.Geofence;
+
 import java.text.ParseException;
 
 public abstract class GeofenceGeometry {
 
-    public abstract boolean containsPoint(double latitude, double longitude);
+    public abstract boolean containsPoint(Config config, Geofence geofence, double latitude, double longitude);
 
     public abstract double calculateArea();
 
diff --git a/src/main/java/org/traccar/geofence/GeofencePolygon.java b/src/main/java/org/traccar/geofence/GeofencePolygon.java
index cd2cbf16a..13f6658ef 100644
--- a/src/main/java/org/traccar/geofence/GeofencePolygon.java
+++ b/src/main/java/org/traccar/geofence/GeofencePolygon.java
@@ -19,6 +19,8 @@ import org.locationtech.spatial4j.context.SpatialContext;
 import org.locationtech.spatial4j.context.jts.JtsSpatialContextFactory;
 import org.locationtech.spatial4j.shape.ShapeFactory;
 import org.locationtech.spatial4j.shape.jts.JtsShapeFactory;
+import org.traccar.config.Config;
+import org.traccar.model.Geofence;
 
 import java.text.ParseException;
 import java.util.ArrayList;
@@ -95,7 +97,7 @@ public class GeofencePolygon extends GeofenceGeometry {
     }
 
     @Override
-    public boolean containsPoint(double latitude, double longitude) {
+    public boolean containsPoint(Config config, Geofence geofence, double latitude, double longitude) {
 
         int polyCorners = coordinates.size();
         int i;
diff --git a/src/main/java/org/traccar/geofence/GeofencePolyline.java b/src/main/java/org/traccar/geofence/GeofencePolyline.java
index 370bf99bb..d9c280ae4 100644
--- a/src/main/java/org/traccar/geofence/GeofencePolyline.java
+++ b/src/main/java/org/traccar/geofence/GeofencePolyline.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2016 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -19,23 +19,28 @@ package org.traccar.geofence;
 import java.text.ParseException;
 import java.util.ArrayList;
 
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
 import org.traccar.helper.DistanceCalculator;
+import org.traccar.model.Geofence;
 
 public class GeofencePolyline extends GeofenceGeometry {
 
     private ArrayList<Coordinate> coordinates;
-    private double distance;
 
     public GeofencePolyline() {
     }
 
-    public GeofencePolyline(String wkt, double distance) throws ParseException {
+    public GeofencePolyline(String wkt) throws ParseException {
         fromWkt(wkt);
-        this.distance = distance;
     }
 
     @Override
-    public boolean containsPoint(double latitude, double longitude) {
+    public boolean containsPoint(Config config, Geofence geofence, double latitude, double longitude) {
+        double distance = geofence.getDouble("polylineDistance");
+        if (distance == 0) {
+            distance = config.getDouble(Keys.GEOFENCE_POLYLINE_DISTANCE);
+        }
         for (int i = 1; i < coordinates.size(); i++) {
             if (DistanceCalculator.distanceToLine(
                     latitude, longitude, coordinates.get(i - 1).getLat(), coordinates.get(i - 1).getLon(),
@@ -56,9 +61,9 @@ public class GeofencePolyline extends GeofenceGeometry {
         StringBuilder buf = new StringBuilder();
         buf.append("LINESTRING (");
         for (Coordinate coordinate : coordinates) {
-            buf.append(String.valueOf(coordinate.getLat()));
+            buf.append(coordinate.getLat());
             buf.append(" ");
-            buf.append(String.valueOf(coordinate.getLon()));
+            buf.append(coordinate.getLon());
             buf.append(", ");
         }
         return buf.substring(0, buf.length() - 2) + ")";
@@ -105,8 +110,4 @@ public class GeofencePolyline extends GeofenceGeometry {
 
     }
 
-    public void setDistance(double distance) {
-        this.distance = distance;
-    }
-
 }
diff --git a/src/main/java/org/traccar/geolocation/GoogleGeolocationProvider.java b/src/main/java/org/traccar/geolocation/GoogleGeolocationProvider.java
index 5901b47cd..9425e9111 100644
--- a/src/main/java/org/traccar/geolocation/GoogleGeolocationProvider.java
+++ b/src/main/java/org/traccar/geolocation/GoogleGeolocationProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,12 +15,14 @@
  */
 package org.traccar.geolocation;
 
+import jakarta.ws.rs.client.Client;
+
 public class GoogleGeolocationProvider extends UniversalGeolocationProvider {
 
     private static final String URL = "https://www.googleapis.com/geolocation/v1/geolocate";
 
-    public GoogleGeolocationProvider(String key) {
-        super(URL, key);
+    public GoogleGeolocationProvider(Client client, String key) {
+        super(client, URL, key);
     }
 
 }
diff --git a/src/main/java/org/traccar/geolocation/MozillaGeolocationProvider.java b/src/main/java/org/traccar/geolocation/MozillaGeolocationProvider.java
index c6a73a52b..7eb22dcca 100644
--- a/src/main/java/org/traccar/geolocation/MozillaGeolocationProvider.java
+++ b/src/main/java/org/traccar/geolocation/MozillaGeolocationProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,12 +15,14 @@
  */
 package org.traccar.geolocation;
 
+import jakarta.ws.rs.client.Client;
+
 public class MozillaGeolocationProvider extends UniversalGeolocationProvider {
 
     private static final String URL = "https://location.services.mozilla.com/v1/geolocate";
 
-    public MozillaGeolocationProvider(String key) {
-        super(URL, key != null ? key : "test");
+    public MozillaGeolocationProvider(Client client, String key) {
+        super(client, URL, key != null ? key : "test");
     }
 
 }
diff --git a/src/main/java/org/traccar/geolocation/OpenCellIdGeolocationProvider.java b/src/main/java/org/traccar/geolocation/OpenCellIdGeolocationProvider.java
index 2535970d3..72a05d10f 100644
--- a/src/main/java/org/traccar/geolocation/OpenCellIdGeolocationProvider.java
+++ b/src/main/java/org/traccar/geolocation/OpenCellIdGeolocationProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,18 +15,20 @@
  */
 package org.traccar.geolocation;
 
-import org.traccar.Context;
 import org.traccar.model.CellTower;
 import org.traccar.model.Network;
 
-import javax.json.JsonObject;
-import javax.ws.rs.client.InvocationCallback;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
+import jakarta.ws.rs.client.InvocationCallback;
 
 public class OpenCellIdGeolocationProvider implements GeolocationProvider {
 
-    private String url;
+    private final Client client;
+    private final String url;
 
-    public OpenCellIdGeolocationProvider(String url, String key) {
+    public OpenCellIdGeolocationProvider(Client client, String url, String key) {
+        this.client = client;
         if (url == null) {
             url = "http://opencellid.org/cell/get";
         }
@@ -41,7 +43,7 @@ public class OpenCellIdGeolocationProvider implements GeolocationProvider {
             String request = String.format(url, cellTower.getMobileCountryCode(), cellTower.getMobileNetworkCode(),
                     cellTower.getLocationAreaCode(), cellTower.getCellId());
 
-            Context.getClient().target(request).request().async().get(new InvocationCallback<JsonObject>() {
+            client.target(request).request().async().get(new InvocationCallback<JsonObject>() {
                 @Override
                 public void completed(JsonObject json) {
                     if (json.containsKey("lat") && json.containsKey("lon")) {
diff --git a/src/main/java/org/traccar/geolocation/UniversalGeolocationProvider.java b/src/main/java/org/traccar/geolocation/UniversalGeolocationProvider.java
index 33cd84a47..9086d8ce3 100644
--- a/src/main/java/org/traccar/geolocation/UniversalGeolocationProvider.java
+++ b/src/main/java/org/traccar/geolocation/UniversalGeolocationProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,26 +15,26 @@
  */
 package org.traccar.geolocation;
 
-import org.traccar.Context;
 import org.traccar.model.Network;
 
-import javax.json.JsonObject;
-import javax.ws.rs.client.AsyncInvoker;
-import javax.ws.rs.client.Entity;
-import javax.ws.rs.client.InvocationCallback;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
+import jakarta.ws.rs.client.Entity;
+import jakarta.ws.rs.client.InvocationCallback;
 
 public class UniversalGeolocationProvider implements GeolocationProvider {
 
+    private final Client client;
     private final String url;
 
-    public UniversalGeolocationProvider(String url, String key) {
+    public UniversalGeolocationProvider(Client client, String url, String key) {
+        this.client = client;
         this.url = url + "?key=" + key;
     }
 
     @Override
     public void getLocation(Network network, final LocationProviderCallback callback) {
-        AsyncInvoker invoker = Context.getClient().target(url).request().async();
-        invoker.post(Entity.json(network), new InvocationCallback<JsonObject>() {
+        client.target(url).request().async().post(Entity.json(network), new InvocationCallback<JsonObject>() {
             @Override
             public void completed(JsonObject json) {
                 if (json.containsKey("error")) {
diff --git a/src/main/java/org/traccar/geolocation/UnwiredGeolocationProvider.java b/src/main/java/org/traccar/geolocation/UnwiredGeolocationProvider.java
index 963bcb688..4f1c5617e 100644
--- a/src/main/java/org/traccar/geolocation/UnwiredGeolocationProvider.java
+++ b/src/main/java/org/traccar/geolocation/UnwiredGeolocationProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,22 +19,23 @@ import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.node.ObjectNode;
-import org.traccar.Context;
 import org.traccar.model.CellTower;
 import org.traccar.model.Network;
 import org.traccar.model.WifiAccessPoint;
 
-import javax.json.JsonObject;
-import javax.ws.rs.client.Entity;
-import javax.ws.rs.client.InvocationCallback;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
+import jakarta.ws.rs.client.Entity;
+import jakarta.ws.rs.client.InvocationCallback;
 import java.util.Collection;
 
 public class UnwiredGeolocationProvider implements GeolocationProvider {
 
-    private String url;
-    private String key;
+    private final Client client;
+    private final String url;
+    private final String key;
 
-    private ObjectMapper objectMapper;
+    private final ObjectMapper objectMapper;
 
     private abstract static class NetworkMixIn {
         @JsonProperty("mcc")
@@ -73,7 +74,8 @@ public class UnwiredGeolocationProvider implements GeolocationProvider {
         abstract Integer getSignalStrength();
     }
 
-    public UnwiredGeolocationProvider(String url, String key) {
+    public UnwiredGeolocationProvider(Client client, String url, String key) {
+        this.client = client;
         this.url = url;
         this.key = key;
 
@@ -88,7 +90,7 @@ public class UnwiredGeolocationProvider implements GeolocationProvider {
         ObjectNode json = objectMapper.valueToTree(network);
         json.put("token", key);
 
-        Context.getClient().target(url).request().async().post(Entity.json(json), new InvocationCallback<JsonObject>() {
+        client.target(url).request().async().post(Entity.json(json), new InvocationCallback<JsonObject>() {
             @Override
             public void completed(JsonObject json) {
                 if (json.getString("status").equals("error")) {
diff --git a/src/main/java/org/traccar/handler/AcknowledgementHandler.java b/src/main/java/org/traccar/handler/AcknowledgementHandler.java
new file mode 100644
index 000000000..4c1085998
--- /dev/null
+++ b/src/main/java/org/traccar/handler/AcknowledgementHandler.java
@@ -0,0 +1,121 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.handler;
+
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelOutboundHandlerAdapter;
+import io.netty.channel.ChannelPromise;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Set;
+
+public class AcknowledgementHandler extends ChannelOutboundHandlerAdapter {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(AcknowledgementHandler.class);
+
+    public interface Event {
+    }
+
+    public static class EventReceived implements Event {
+    }
+
+    public static class EventDecoded implements Event {
+        private final Collection<Object> objects;
+
+        public EventDecoded(Collection<Object> objects) {
+            this.objects = objects;
+        }
+
+        public Collection<Object> getObjects() {
+            return objects;
+        }
+    }
+
+    public static class EventHandled implements Event {
+        private final Object object;
+
+        public EventHandled(Object object) {
+            this.object = object;
+        }
+
+        public Object getObject() {
+            return object;
+        }
+    }
+
+    private static final class Entry {
+        private final Object message;
+        private final ChannelPromise promise;
+
+        private Entry(Object message, ChannelPromise promise) {
+            this.message = message;
+            this.promise = promise;
+        }
+
+        public Object getMessage() {
+            return message;
+        }
+
+        public ChannelPromise getPromise() {
+            return promise;
+        }
+    }
+
+    private List<Entry> queue;
+    private final Set<Object> waiting = new HashSet<>();
+
+    @Override
+    public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
+        List<Entry> output = new LinkedList<>();
+        synchronized (this) {
+            if (msg instanceof Event) {
+                if (msg instanceof EventReceived) {
+                    LOGGER.debug("Event received");
+                    if (queue == null) {
+                        queue = new LinkedList<>();
+                    }
+                } else if (msg instanceof EventDecoded) {
+                    EventDecoded event = (EventDecoded) msg;
+                    LOGGER.debug("Event decoded {}", event.getObjects().size());
+                    waiting.addAll(event.getObjects());
+                } else if (msg instanceof EventHandled) {
+                    EventHandled event = (EventHandled) msg;
+                    LOGGER.debug("Event handled");
+                    waiting.remove(event.getObject());
+                }
+                if (!(msg instanceof EventReceived) && waiting.isEmpty()) {
+                    output.addAll(queue);
+                    queue = null;
+                }
+            } else if (queue != null) {
+                LOGGER.debug("Message queued");
+                queue.add(new Entry(msg, promise));
+            } else {
+                LOGGER.debug("Message sent");
+                output.add(new Entry(msg, promise));
+            }
+        }
+        for (Entry entry : output) {
+            ctx.write(entry.getMessage(), entry.getPromise());
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/handler/ComputedAttributesHandler.java b/src/main/java/org/traccar/handler/ComputedAttributesHandler.java
index 153da29b9..042747359 100644
--- a/src/main/java/org/traccar/handler/ComputedAttributesHandler.java
+++ b/src/main/java/org/traccar/handler/ComputedAttributesHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2023 Anton Tananaev (anton@traccar.org)
  * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -24,56 +24,77 @@ import java.util.Collections;
 import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
+import java.util.List;
 
 import io.netty.channel.ChannelHandler;
-import org.apache.commons.jexl2.JexlEngine;
-import org.apache.commons.jexl2.JexlException;
-import org.apache.commons.jexl2.MapContext;
+import org.apache.commons.jexl3.JexlFeatures;
+import org.apache.commons.jexl3.JexlEngine;
+import org.apache.commons.jexl3.JexlBuilder;
+import org.apache.commons.jexl3.introspection.JexlSandbox;
+import org.apache.commons.jexl3.JexlException;
+import org.apache.commons.jexl3.MapContext;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.traccar.BaseDataHandler;
 import org.traccar.config.Config;
 import org.traccar.config.Keys;
-import org.traccar.database.AttributesManager;
-import org.traccar.database.IdentityManager;
 import org.traccar.model.Attribute;
 import org.traccar.model.Device;
 import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+
+@Singleton
 @ChannelHandler.Sharable
 public class ComputedAttributesHandler extends BaseDataHandler {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(ComputedAttributesHandler.class);
 
-    private final IdentityManager identityManager;
-    private final AttributesManager attributesManager;
+    private final CacheManager cacheManager;
 
     private final JexlEngine engine;
 
+    private final JexlFeatures features;
+
     private final boolean includeDeviceAttributes;
 
-    public ComputedAttributesHandler(
-            Config config, IdentityManager identityManager, AttributesManager attributesManager) {
-        this.identityManager = identityManager;
-        this.attributesManager = attributesManager;
-        engine = new JexlEngine();
-        engine.setStrict(true);
-        engine.setFunctions(Collections.singletonMap("math", Math.class));
+    @Inject
+    public ComputedAttributesHandler(Config config, CacheManager cacheManager) {
+        this.cacheManager = cacheManager;
+        JexlSandbox sandbox = new JexlSandbox(false);
+        sandbox.allow("com.safe.Functions");
+        sandbox.allow(Math.class.getName());
+        List.of(
+            Double.class, Float.class, Integer.class, Long.class, Short.class,
+            Character.class, Boolean.class, String.class, Byte.class)
+                .forEach((type) -> sandbox.allow(type.getName()));
+        features = new JexlFeatures()
+                .localVar(config.getBoolean(Keys.PROCESSING_COMPUTED_ATTRIBUTES_LOCAL_VARIABLES))
+                .loops(config.getBoolean(Keys.PROCESSING_COMPUTED_ATTRIBUTES_LOOPS))
+                .newInstance(config.getBoolean(Keys.PROCESSING_COMPUTED_ATTRIBUTES_NEW_INSTANCE_CREATION))
+                .structuredLiteral(true);
+        engine = new JexlBuilder()
+                .strict(true)
+                .namespaces(Collections.singletonMap("math", Math.class))
+                .sandbox(sandbox)
+                .create();
         includeDeviceAttributes = config.getBoolean(Keys.PROCESSING_COMPUTED_ATTRIBUTES_DEVICE_ATTRIBUTES);
     }
 
     private MapContext prepareContext(Position position) {
         MapContext result = new MapContext();
         if (includeDeviceAttributes) {
-            Device device = identityManager.getById(position.getDeviceId());
+            Device device = cacheManager.getObject(Device.class, position.getDeviceId());
             if (device != null) {
-                for (Object key : device.getAttributes().keySet()) {
-                    result.set((String) key, device.getAttributes().get(key));
+                for (String key : device.getAttributes().keySet()) {
+                    result.set(key, device.getAttributes().get(key));
                 }
             }
         }
         Set<Method> methods = new HashSet<>(Arrays.asList(position.getClass().getMethods()));
-        methods.removeAll(Arrays.asList(Object.class.getMethods()));
+        Arrays.asList(Object.class.getMethods()).forEach(methods::remove);
         for (Method method : methods) {
             if (method.getName().startsWith("get") && method.getParameterTypes().length == 0) {
                 String name = Character.toLowerCase(method.getName().charAt(3)) + method.getName().substring(4);
@@ -82,8 +103,8 @@ public class ComputedAttributesHandler extends BaseDataHandler {
                     if (!method.getReturnType().equals(Map.class)) {
                         result.set(name, method.invoke(position));
                     } else {
-                        for (Object key : ((Map) method.invoke(position)).keySet()) {
-                            result.set((String) key, ((Map) method.invoke(position)).get(key));
+                        for (Object key : ((Map<?, ?>) method.invoke(position)).keySet()) {
+                            result.set((String) key, ((Map<?, ?>) method.invoke(position)).get(key));
                         }
                     }
                 } catch (IllegalAccessException | InvocationTargetException error) {
@@ -99,13 +120,14 @@ public class ComputedAttributesHandler extends BaseDataHandler {
      */
     @Deprecated
     public Object computeAttribute(Attribute attribute, Position position) throws JexlException {
-        return engine.createExpression(attribute.getExpression()).evaluate(prepareContext(position));
+        return engine
+                .createScript(features, engine.createInfo(), attribute.getExpression())
+                .execute(prepareContext(position));
     }
 
     @Override
     protected Position handlePosition(Position position) {
-        Collection<Attribute> attributes = attributesManager.getItems(
-                attributesManager.getAllDeviceItems(position.getDeviceId()));
+        Collection<Attribute> attributes = cacheManager.getDeviceObjects(position.getDeviceId(), Attribute.class);
         for (Attribute attribute : attributes) {
             if (attribute.getAttribute() != null) {
                 Object result = null;
@@ -116,17 +138,45 @@ public class ComputedAttributesHandler extends BaseDataHandler {
                 }
                 if (result != null) {
                     try {
-                        switch (attribute.getType()) {
-                            case "number":
-                                Number numberValue = (Number) result;
-                                position.getAttributes().put(attribute.getAttribute(), numberValue);
+                        switch (attribute.getAttribute()) {
+                            case "valid":
+                                position.setValid((Boolean) result);
+                                break;
+                            case "latitude":
+                                position.setLatitude(((Number) result).doubleValue());
+                                break;
+                            case "longitude":
+                                position.setLongitude(((Number) result).doubleValue());
+                                break;
+                            case "altitude":
+                                position.setAltitude(((Number) result).doubleValue());
                                 break;
-                            case "boolean":
-                                Boolean booleanValue = (Boolean) result;
-                                position.getAttributes().put(attribute.getAttribute(), booleanValue);
+                            case "speed":
+                                position.setSpeed(((Number) result).doubleValue());
+                                break;
+                            case "course":
+                                position.setCourse(((Number) result).doubleValue());
+                                break;
+                            case "address":
+                                position.setAddress((String) result);
+                                break;
+                            case "accuracy":
+                                position.setAccuracy(((Number) result).doubleValue());
                                 break;
                             default:
-                                position.getAttributes().put(attribute.getAttribute(), result.toString());
+                                switch (attribute.getType()) {
+                                    case "number":
+                                        Number numberValue = (Number) result;
+                                        position.getAttributes().put(attribute.getAttribute(), numberValue);
+                                        break;
+                                    case "boolean":
+                                        Boolean booleanValue = (Boolean) result;
+                                        position.getAttributes().put(attribute.getAttribute(), booleanValue);
+                                        break;
+                                    default:
+                                        position.getAttributes().put(attribute.getAttribute(), result.toString());
+                                }
+                                break;
                         }
                     } catch (ClassCastException error) {
                         LOGGER.warn("Attribute cast error", error);
diff --git a/src/main/java/org/traccar/handler/CopyAttributesHandler.java b/src/main/java/org/traccar/handler/CopyAttributesHandler.java
index f386116b0..42b438e41 100644
--- a/src/main/java/org/traccar/handler/CopyAttributesHandler.java
+++ b/src/main/java/org/traccar/handler/CopyAttributesHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2016 - 2017 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -18,27 +18,39 @@ package org.traccar.handler;
 
 import io.netty.channel.ChannelHandler;
 import org.traccar.BaseDataHandler;
-import org.traccar.database.IdentityManager;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.helper.model.AttributeUtil;
 import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+
+@Singleton
 @ChannelHandler.Sharable
 public class CopyAttributesHandler extends BaseDataHandler {
 
-    private IdentityManager identityManager;
+    private final boolean enabled;
+    private final CacheManager cacheManager;
 
-    public CopyAttributesHandler(IdentityManager identityManager) {
-        this.identityManager = identityManager;
+    @Inject
+    public CopyAttributesHandler(Config config, CacheManager cacheManager) {
+        enabled = config.getBoolean(Keys.PROCESSING_COPY_ATTRIBUTES_ENABLE);
+        this.cacheManager = cacheManager;
     }
 
     @Override
     protected Position handlePosition(Position position) {
-        String attributesString = identityManager.lookupAttributeString(
-                position.getDeviceId(), "processing.copyAttributes", "", false, true);
-        Position last = identityManager.getLastPosition(position.getDeviceId());
-        if (last != null) {
-            for (String attribute : attributesString.split("[ ,]")) {
-                if (last.getAttributes().containsKey(attribute) && !position.getAttributes().containsKey(attribute)) {
-                    position.getAttributes().put(attribute, last.getAttributes().get(attribute));
+        if (enabled) {
+            String attributesString = AttributeUtil.lookup(
+                    cacheManager, Keys.PROCESSING_COPY_ATTRIBUTES, position.getDeviceId());
+            Position last = cacheManager.getPosition(position.getDeviceId());
+            if (last != null && attributesString != null) {
+                for (String attribute : attributesString.split("[ ,]")) {
+                    if (last.hasAttribute(attribute) && !position.hasAttribute(attribute)) {
+                        position.getAttributes().put(attribute, last.getAttributes().get(attribute));
+                    }
                 }
             }
         }
diff --git a/src/main/java/org/traccar/handler/DefaultDataHandler.java b/src/main/java/org/traccar/handler/DefaultDataHandler.java
index 9d8ea044d..cca6dcd0a 100644
--- a/src/main/java/org/traccar/handler/DefaultDataHandler.java
+++ b/src/main/java/org/traccar/handler/DefaultDataHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,25 +19,32 @@ import io.netty.channel.ChannelHandler;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.traccar.BaseDataHandler;
-import org.traccar.database.DataManager;
 import org.traccar.model.Position;
+import org.traccar.storage.Storage;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Request;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+
+@Singleton
 @ChannelHandler.Sharable
 public class DefaultDataHandler extends BaseDataHandler {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(DefaultDataHandler.class);
 
-    private final DataManager dataManager;
+    private final Storage storage;
 
-    public DefaultDataHandler(DataManager dataManager) {
-        this.dataManager = dataManager;
+    @Inject
+    public DefaultDataHandler(Storage storage) {
+        this.storage = storage;
     }
 
     @Override
     protected Position handlePosition(Position position) {
 
         try {
-            dataManager.addObject(position);
+            position.setId(storage.addObject(position, new Request(new Columns.Exclude("id"))));
         } catch (Exception error) {
             LOGGER.warn("Failed to store position", error);
         }
diff --git a/src/main/java/org/traccar/handler/DistanceHandler.java b/src/main/java/org/traccar/handler/DistanceHandler.java
index 1e7e444f6..7fdefa1f4 100644
--- a/src/main/java/org/traccar/handler/DistanceHandler.java
+++ b/src/main/java/org/traccar/handler/DistanceHandler.java
@@ -1,6 +1,6 @@
 /*
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2015 Amila Silva
- * Copyright 2016 - 2021 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,24 +20,28 @@ import io.netty.channel.ChannelHandler;
 import org.traccar.BaseDataHandler;
 import org.traccar.config.Config;
 import org.traccar.config.Keys;
-import org.traccar.database.IdentityManager;
 import org.traccar.helper.DistanceCalculator;
 import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
 import java.math.BigDecimal;
 import java.math.RoundingMode;
 
+@Singleton
 @ChannelHandler.Sharable
 public class DistanceHandler extends BaseDataHandler {
 
-    private final IdentityManager identityManager;
+    private final CacheManager cacheManager;
 
     private final boolean filter;
     private final int coordinatesMinError;
     private final int coordinatesMaxError;
 
-    public DistanceHandler(Config config, IdentityManager identityManager) {
-        this.identityManager = identityManager;
+    @Inject
+    public DistanceHandler(Config config, CacheManager cacheManager) {
+        this.cacheManager = cacheManager;
         this.filter = config.getBoolean(Keys.COORDINATES_FILTER);
         this.coordinatesMinError = config.getInteger(Keys.COORDINATES_MIN_ERROR);
         this.coordinatesMaxError = config.getInteger(Keys.COORDINATES_MAX_ERROR);
@@ -47,15 +51,15 @@ public class DistanceHandler extends BaseDataHandler {
     protected Position handlePosition(Position position) {
 
         double distance = 0.0;
-        if (position.getAttributes().containsKey(Position.KEY_DISTANCE)) {
+        if (position.hasAttribute(Position.KEY_DISTANCE)) {
             distance = position.getDouble(Position.KEY_DISTANCE);
         }
         double totalDistance = 0.0;
 
-        Position last = identityManager != null ? identityManager.getLastPosition(position.getDeviceId()) : null;
+        Position last = cacheManager.getPosition(position.getDeviceId());
         if (last != null) {
             totalDistance = last.getDouble(Position.KEY_TOTAL_DISTANCE);
-            if (!position.getAttributes().containsKey(Position.KEY_DISTANCE)) {
+            if (!position.hasAttribute(Position.KEY_DISTANCE)) {
                 distance = DistanceCalculator.distance(
                         position.getLatitude(), position.getLongitude(),
                         last.getLatitude(), last.getLongitude());
diff --git a/src/main/java/org/traccar/handler/EngineHoursHandler.java b/src/main/java/org/traccar/handler/EngineHoursHandler.java
index 92da84e6b..621205b34 100644
--- a/src/main/java/org/traccar/handler/EngineHoursHandler.java
+++ b/src/main/java/org/traccar/handler/EngineHoursHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2018 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -18,22 +18,27 @@ package org.traccar.handler;
 
 import io.netty.channel.ChannelHandler;
 import org.traccar.BaseDataHandler;
-import org.traccar.database.IdentityManager;
 import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+
+@Singleton
 @ChannelHandler.Sharable
 public class EngineHoursHandler extends BaseDataHandler {
 
-    private final IdentityManager identityManager;
+    private final CacheManager cacheManager;
 
-    public EngineHoursHandler(IdentityManager identityManager) {
-        this.identityManager = identityManager;
+    @Inject
+    public EngineHoursHandler(CacheManager cacheManager) {
+        this.cacheManager = cacheManager;
     }
 
     @Override
     protected Position handlePosition(Position position) {
-        if (!position.getAttributes().containsKey(Position.KEY_HOURS)) {
-            Position last = identityManager.getLastPosition(position.getDeviceId());
+        if (!position.hasAttribute(Position.KEY_HOURS)) {
+            Position last = cacheManager.getPosition(position.getDeviceId());
             if (last != null) {
                 long hours = last.getLong(Position.KEY_HOURS);
                 if (last.getBoolean(Position.KEY_IGNITION) && position.getBoolean(Position.KEY_IGNITION)) {
diff --git a/src/main/java/org/traccar/handler/FilterHandler.java b/src/main/java/org/traccar/handler/FilterHandler.java
index e576a26b8..a15d3ffad 100644
--- a/src/main/java/org/traccar/handler/FilterHandler.java
+++ b/src/main/java/org/traccar/handler/FilterHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2014 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2014 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,51 +16,90 @@
 package org.traccar.handler;
 
 import io.netty.channel.ChannelHandler;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelInboundHandlerAdapter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.traccar.BaseDataHandler;
-import org.traccar.Context;
 import org.traccar.config.Config;
 import org.traccar.config.Keys;
+import org.traccar.database.StatisticsManager;
 import org.traccar.helper.UnitsConverter;
+import org.traccar.helper.model.AttributeUtil;
+import org.traccar.model.Calendar;
+import org.traccar.model.Device;
 import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
+import org.traccar.storage.Storage;
 import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Order;
+import org.traccar.storage.query.Request;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
 import java.util.Date;
 
+@Singleton
 @ChannelHandler.Sharable
-public class FilterHandler extends BaseDataHandler {
+public class FilterHandler extends ChannelInboundHandlerAdapter {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(FilterHandler.class);
 
-    private boolean filterInvalid;
-    private boolean filterZero;
-    private boolean filterDuplicate;
-    private long filterFuture;
-    private boolean filterApproximate;
-    private int filterAccuracy;
-    private boolean filterStatic;
-    private int filterDistance;
-    private int filterMaxSpeed;
-    private long filterMinPeriod;
-    private boolean filterRelative;
-    private long skipLimit;
-    private boolean skipAttributes;
-
-    public FilterHandler(Config config) {
+    private final boolean enabled;
+    private final boolean filterInvalid;
+    private final boolean filterZero;
+    private final boolean filterDuplicate;
+    private final boolean filterOutdated;
+    private final long filterFuture;
+    private final long filterPast;
+    private final boolean filterApproximate;
+    private final int filterAccuracy;
+    private final boolean filterStatic;
+    private final int filterDistance;
+    private final int filterMaxSpeed;
+    private final long filterMinPeriod;
+    private final int filterDailyLimit;
+    private final boolean filterRelative;
+    private final long skipLimit;
+    private final boolean skipAttributes;
+
+    private final CacheManager cacheManager;
+    private final Storage storage;
+    private final StatisticsManager statisticsManager;
+
+    @Inject
+    public FilterHandler(
+            Config config, CacheManager cacheManager, Storage storage, StatisticsManager statisticsManager) {
+        enabled = config.getBoolean(Keys.FILTER_ENABLE);
         filterInvalid = config.getBoolean(Keys.FILTER_INVALID);
         filterZero = config.getBoolean(Keys.FILTER_ZERO);
         filterDuplicate = config.getBoolean(Keys.FILTER_DUPLICATE);
+        filterOutdated = config.getBoolean(Keys.FILTER_OUTDATED);
         filterFuture = config.getLong(Keys.FILTER_FUTURE) * 1000;
+        filterPast = config.getLong(Keys.FILTER_PAST) * 1000;
         filterAccuracy = config.getInteger(Keys.FILTER_ACCURACY);
         filterApproximate = config.getBoolean(Keys.FILTER_APPROXIMATE);
         filterStatic = config.getBoolean(Keys.FILTER_STATIC);
         filterDistance = config.getInteger(Keys.FILTER_DISTANCE);
         filterMaxSpeed = config.getInteger(Keys.FILTER_MAX_SPEED);
-        filterMinPeriod = config.getInteger(Keys.FILTER_MIN_PERIOD) * 1000;
+        filterMinPeriod = config.getInteger(Keys.FILTER_MIN_PERIOD) * 1000L;
+        filterDailyLimit = config.getInteger(Keys.FILTER_DAILY_LIMIT);
         filterRelative = config.getBoolean(Keys.FILTER_RELATIVE);
         skipLimit = config.getLong(Keys.FILTER_SKIP_LIMIT) * 1000;
         skipAttributes = config.getBoolean(Keys.FILTER_SKIP_ATTRIBUTES_ENABLE);
+        this.cacheManager = cacheManager;
+        this.storage = storage;
+        this.statisticsManager = statisticsManager;
+    }
+
+    private Position getPrecedingPosition(long deviceId, Date date) throws StorageException {
+        return storage.getObject(Position.class, new Request(
+                new Columns.All(),
+                new Condition.And(
+                        new Condition.Equals("deviceId", deviceId),
+                        new Condition.Compare("fixTime", "<=", "time", date)),
+                new Order("fixTime", true, 1)));
     }
 
     private boolean filterInvalid(Position position) {
@@ -76,7 +115,7 @@ public class FilterHandler extends BaseDataHandler {
     private boolean filterDuplicate(Position position, Position last) {
         if (filterDuplicate && last != null && position.getFixTime().equals(last.getFixTime())) {
             for (String key : position.getAttributes().keySet()) {
-                if (!last.getAttributes().containsKey(key)) {
+                if (!last.hasAttribute(key)) {
                     return false;
                 }
             }
@@ -85,10 +124,18 @@ public class FilterHandler extends BaseDataHandler {
         return false;
     }
 
+    private boolean filterOutdated(Position position) {
+        return filterOutdated && position.getOutdated();
+    }
+
     private boolean filterFuture(Position position) {
         return filterFuture != 0 && position.getFixTime().getTime() > System.currentTimeMillis() + filterFuture;
     }
 
+    private boolean filterPast(Position position) {
+        return filterPast != 0 && position.getFixTime().getTime() < System.currentTimeMillis() - filterPast;
+    }
+
     private boolean filterAccuracy(Position position) {
         return filterAccuracy != 0 && position.getAccuracy() > filterAccuracy;
     }
@@ -125,6 +172,13 @@ public class FilterHandler extends BaseDataHandler {
         return false;
     }
 
+    private boolean filterDailyLimit(Position position) {
+        if (filterDailyLimit != 0) {
+            return statisticsManager.messageStoredCount(position.getDeviceId()) >= filterDailyLimit;
+        }
+        return false;
+    }
+
     private boolean skipLimit(Position position, Position last) {
         if (skipLimit != 0 && last != null) {
             return (position.getServerTime().getTime() - last.getServerTime().getTime()) > skipLimit;
@@ -134,10 +188,9 @@ public class FilterHandler extends BaseDataHandler {
 
     private boolean skipAttributes(Position position) {
         if (skipAttributes) {
-            String attributesString = Context.getIdentityManager().lookupAttributeString(
-                    position.getDeviceId(), "filter.skipAttributes", "", false, true);
-            for (String attribute : attributesString.split("[ ,]")) {
-                if (position.getAttributes().containsKey(attribute)) {
+            String string = AttributeUtil.lookup(cacheManager, Keys.FILTER_SKIP_ATTRIBUTES, position.getDeviceId());
+            for (String attribute : string.split("[ ,]")) {
+                if (position.hasAttribute(attribute)) {
                     return true;
                 }
             }
@@ -145,7 +198,7 @@ public class FilterHandler extends BaseDataHandler {
         return false;
     }
 
-    private boolean filter(Position position) {
+    protected boolean filter(Position position) {
 
         StringBuilder filterType = new StringBuilder();
 
@@ -156,15 +209,24 @@ public class FilterHandler extends BaseDataHandler {
         if (filterZero(position)) {
             filterType.append("Zero ");
         }
+        if (filterOutdated(position)) {
+            filterType.append("Outdated ");
+        }
         if (filterFuture(position)) {
             filterType.append("Future ");
         }
+        if (filterPast(position)) {
+            filterType.append("Past ");
+        }
         if (filterAccuracy(position)) {
             filterType.append("Accuracy ");
         }
         if (filterApproximate(position)) {
             filterType.append("Approximate ");
         }
+        if (filterDailyLimit(position)) {
+            filterType.append("DailyLimit ");
+        }
 
         // filter out excessive data
         long deviceId = position.getDeviceId();
@@ -173,13 +235,13 @@ public class FilterHandler extends BaseDataHandler {
             if (filterRelative) {
                 try {
                     Date newFixTime = position.getFixTime();
-                    preceding = Context.getDataManager().getPrecedingPosition(deviceId, newFixTime);
+                    preceding = getPrecedingPosition(deviceId, newFixTime);
                 } catch (StorageException e) {
                     LOGGER.warn("Error retrieving preceding position; fallbacking to last received position.", e);
-                    preceding = getLastReceivedPosition(deviceId);
+                    preceding = cacheManager.getPosition(deviceId);
                 }
             } else {
-                preceding = getLastReceivedPosition(deviceId);
+                preceding = cacheManager.getPosition(deviceId);
             }
             if (filterDuplicate(position, preceding) && !skipLimit(position, preceding) && !skipAttributes(position)) {
                 filterType.append("Duplicate ");
@@ -198,34 +260,34 @@ public class FilterHandler extends BaseDataHandler {
             }
         }
 
-        if (filterType.length() > 0) {
-
-            StringBuilder message = new StringBuilder();
-            message.append("Position filtered by ");
-            message.append(filterType.toString());
-            message.append("filters from device: ");
-            message.append(Context.getIdentityManager().getById(deviceId).getUniqueId());
+        Device device = cacheManager.getObject(Device.class, deviceId);
+        if (device.getCalendarId() > 0) {
+            Calendar calendar = cacheManager.getObject(Calendar.class, device.getCalendarId());
+            if (!calendar.checkMoment(position.getFixTime())) {
+                filterType.append("Calendar ");
+            }
+        }
 
-            LOGGER.info(message.toString());
+        if (filterType.length() > 0) {
+            LOGGER.info("Position filtered by {}filters from device: {}", filterType, device.getUniqueId());
             return true;
         }
 
         return false;
     }
 
-    private Position getLastReceivedPosition(long deviceId) {
-        if (Context.getIdentityManager() != null) {
-            return Context.getIdentityManager().getLastPosition(deviceId);
-        }
-        return null;
-    }
-
     @Override
-    protected Position handlePosition(Position position) {
-        if (filter(position)) {
-            return null;
+    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
+        if (msg instanceof Position) {
+            Position position = (Position) msg;
+            if (enabled && filter(position)) {
+                ctx.writeAndFlush(new AcknowledgementHandler.EventHandled(position));
+            } else {
+                ctx.fireChannelRead(position);
+            }
+        } else {
+            super.channelRead(ctx, msg);
         }
-        return position;
     }
 
 }
diff --git a/src/main/java/org/traccar/handler/GeocoderHandler.java b/src/main/java/org/traccar/handler/GeocoderHandler.java
index 614cf97d6..e4f240a90 100644
--- a/src/main/java/org/traccar/handler/GeocoderHandler.java
+++ b/src/main/java/org/traccar/handler/GeocoderHandler.java
@@ -20,12 +20,11 @@ import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.traccar.Context;
 import org.traccar.config.Config;
 import org.traccar.config.Keys;
-import org.traccar.database.IdentityManager;
 import org.traccar.geocoder.Geocoder;
 import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
 
 @ChannelHandler.Sharable
 public class GeocoderHandler extends ChannelInboundHandlerAdapter {
@@ -33,18 +32,17 @@ public class GeocoderHandler extends ChannelInboundHandlerAdapter {
     private static final Logger LOGGER = LoggerFactory.getLogger(GeocoderHandler.class);
 
     private final Geocoder geocoder;
-    private final IdentityManager identityManager;
+    private final CacheManager cacheManager;
     private final boolean ignorePositions;
     private final boolean processInvalidPositions;
-    private final int geocoderReuseDistance;
+    private final int reuseDistance;
 
-    public GeocoderHandler(
-            Config config, Geocoder geocoder, IdentityManager identityManager) {
+    public GeocoderHandler(Config config, Geocoder geocoder, CacheManager cacheManager) {
         this.geocoder = geocoder;
-        this.identityManager = identityManager;
-        ignorePositions = Context.getConfig().getBoolean(Keys.GEOCODER_IGNORE_POSITIONS);
+        this.cacheManager = cacheManager;
+        ignorePositions = config.getBoolean(Keys.GEOCODER_IGNORE_POSITIONS);
         processInvalidPositions = config.getBoolean(Keys.GEOCODER_PROCESS_INVALID_POSITIONS);
-        geocoderReuseDistance = config.getInteger(Keys.GEOCODER_REUSE_DISTANCE, 0);
+        reuseDistance = config.getInteger(Keys.GEOCODER_REUSE_DISTANCE, 0);
     }
 
     @Override
@@ -52,10 +50,10 @@ public class GeocoderHandler extends ChannelInboundHandlerAdapter {
         if (message instanceof Position && !ignorePositions) {
             final Position position = (Position) message;
             if (processInvalidPositions || position.getValid()) {
-                if (geocoderReuseDistance != 0) {
-                    Position lastPosition = identityManager.getLastPosition(position.getDeviceId());
+                if (reuseDistance != 0) {
+                    Position lastPosition = cacheManager.getPosition(position.getDeviceId());
                     if (lastPosition != null && lastPosition.getAddress() != null
-                            && position.getDouble(Position.KEY_DISTANCE) <= geocoderReuseDistance) {
+                            && position.getDouble(Position.KEY_DISTANCE) <= reuseDistance) {
                         position.setAddress(lastPosition.getAddress());
                         ctx.fireChannelRead(position);
                         return;
diff --git a/src/main/java/org/traccar/handler/GeofenceHandler.java b/src/main/java/org/traccar/handler/GeofenceHandler.java
new file mode 100644
index 000000000..68bc6dbf0
--- /dev/null
+++ b/src/main/java/org/traccar/handler/GeofenceHandler.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.handler;
+
+import io.netty.channel.ChannelHandler;
+import org.traccar.BaseDataHandler;
+import org.traccar.config.Config;
+import org.traccar.helper.model.GeofenceUtil;
+import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.util.List;
+
+@Singleton
+@ChannelHandler.Sharable
+public class GeofenceHandler extends BaseDataHandler {
+
+    private final Config config;
+    private final CacheManager cacheManager;
+
+    @Inject
+    public GeofenceHandler(Config config, CacheManager cacheManager) {
+        this.config = config;
+        this.cacheManager = cacheManager;
+    }
+
+    @Override
+    protected Position handlePosition(Position position) {
+
+        List<Long> geofenceIds = GeofenceUtil.getCurrentGeofences(config, cacheManager, position);
+        if (!geofenceIds.isEmpty()) {
+            position.setGeofenceIds(geofenceIds);
+        }
+        return position;
+    }
+
+}
diff --git a/src/main/java/org/traccar/handler/GeolocationHandler.java b/src/main/java/org/traccar/handler/GeolocationHandler.java
index 0e78322c8..e7389f22d 100644
--- a/src/main/java/org/traccar/handler/GeolocationHandler.java
+++ b/src/main/java/org/traccar/handler/GeolocationHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,6 +25,7 @@ import org.traccar.config.Keys;
 import org.traccar.database.StatisticsManager;
 import org.traccar.geolocation.GeolocationProvider;
 import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
 
 @ChannelHandler.Sharable
 public class GeolocationHandler extends ChannelInboundHandlerAdapter {
@@ -32,14 +33,19 @@ public class GeolocationHandler extends ChannelInboundHandlerAdapter {
     private static final Logger LOGGER = LoggerFactory.getLogger(GeolocationHandler.class);
 
     private final GeolocationProvider geolocationProvider;
+    private final CacheManager cacheManager;
     private final StatisticsManager statisticsManager;
     private final boolean processInvalidPositions;
+    private final boolean reuse;
 
     public GeolocationHandler(
-            Config config, GeolocationProvider geolocationProvider, StatisticsManager statisticsManager) {
+            Config config, GeolocationProvider geolocationProvider, CacheManager cacheManager,
+            StatisticsManager statisticsManager) {
         this.geolocationProvider = geolocationProvider;
+        this.cacheManager = cacheManager;
         this.statisticsManager = statisticsManager;
-        this.processInvalidPositions = config.getBoolean(Keys.GEOLOCATION_PROCESS_INVALID_POSITIONS);
+        processInvalidPositions = config.getBoolean(Keys.GEOLOCATION_PROCESS_INVALID_POSITIONS);
+        reuse = config.getBoolean(Keys.GEOLOCATION_REUSE);
     }
 
     @Override
@@ -48,6 +54,17 @@ public class GeolocationHandler extends ChannelInboundHandlerAdapter {
             final Position position = (Position) message;
             if ((position.getOutdated() || processInvalidPositions && !position.getValid())
                     && position.getNetwork() != null) {
+                if (reuse) {
+                    Position lastPosition = cacheManager.getPosition(position.getDeviceId());
+                    if (lastPosition != null && position.getNetwork().equals(lastPosition.getNetwork())) {
+                        updatePosition(
+                                position, lastPosition.getLatitude(), lastPosition.getLongitude(),
+                                lastPosition.getAccuracy());
+                        ctx.fireChannelRead(position);
+                        return;
+                    }
+                }
+
                 if (statisticsManager != null) {
                     statisticsManager.registerGeolocationRequest();
                 }
@@ -56,15 +73,7 @@ public class GeolocationHandler extends ChannelInboundHandlerAdapter {
                         new GeolocationProvider.LocationProviderCallback() {
                     @Override
                     public void onSuccess(double latitude, double longitude, double accuracy) {
-                        position.set(Position.KEY_APPROXIMATE, true);
-                        position.setValid(true);
-                        position.setFixTime(position.getDeviceTime());
-                        position.setLatitude(latitude);
-                        position.setLongitude(longitude);
-                        position.setAccuracy(accuracy);
-                        position.setAltitude(0);
-                        position.setSpeed(0);
-                        position.setCourse(0);
+                        updatePosition(position, latitude, longitude, accuracy);
                         ctx.fireChannelRead(position);
                     }
 
@@ -82,4 +91,16 @@ public class GeolocationHandler extends ChannelInboundHandlerAdapter {
         }
     }
 
+    private void updatePosition(Position position, double latitude, double longitude, double accuracy) {
+        position.set(Position.KEY_APPROXIMATE, true);
+        position.setValid(true);
+        position.setFixTime(position.getDeviceTime());
+        position.setLatitude(latitude);
+        position.setLongitude(longitude);
+        position.setAccuracy(accuracy);
+        position.setAltitude(0);
+        position.setSpeed(0);
+        position.setCourse(0);
+    }
+
 }
diff --git a/src/main/java/org/traccar/handler/HemisphereHandler.java b/src/main/java/org/traccar/handler/HemisphereHandler.java
index aff3d8a64..294e449db 100644
--- a/src/main/java/org/traccar/handler/HemisphereHandler.java
+++ b/src/main/java/org/traccar/handler/HemisphereHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,12 +21,17 @@ import org.traccar.config.Config;
 import org.traccar.config.Keys;
 import org.traccar.model.Position;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+
+@Singleton
 @ChannelHandler.Sharable
 public class HemisphereHandler extends BaseDataHandler {
 
     private int latitudeFactor;
     private int longitudeFactor;
 
+    @Inject
     public HemisphereHandler(Config config) {
         String latitudeHemisphere = config.getString(Keys.LOCATION_LATITUDE_HEMISPHERE);
         if (latitudeHemisphere != null) {
@@ -36,7 +41,7 @@ public class HemisphereHandler extends BaseDataHandler {
                 latitudeFactor = -1;
             }
         }
-        String longitudeHemisphere = config.getString(Keys.LOCATION_LATITUDE_HEMISPHERE);
+        String longitudeHemisphere = config.getString(Keys.LOCATION_LONGITUDE_HEMISPHERE);
         if (longitudeHemisphere != null) {
             if (longitudeHemisphere.equalsIgnoreCase("E")) {
                 longitudeFactor = 1;
diff --git a/src/main/java/org/traccar/handler/MotionHandler.java b/src/main/java/org/traccar/handler/MotionHandler.java
index e8051dd75..68a31a16a 100644
--- a/src/main/java/org/traccar/handler/MotionHandler.java
+++ b/src/main/java/org/traccar/handler/MotionHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2023 Anton Tananaev (anton@traccar.org)
  * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -18,21 +18,31 @@ package org.traccar.handler;
 
 import io.netty.channel.ChannelHandler;
 import org.traccar.BaseDataHandler;
+import org.traccar.config.Keys;
+import org.traccar.helper.model.AttributeUtil;
 import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+
+@Singleton
 @ChannelHandler.Sharable
 public class MotionHandler extends BaseDataHandler {
 
-    private double speedThreshold;
+    private final CacheManager cacheManager;
 
-    public MotionHandler(double speedThreshold) {
-        this.speedThreshold = speedThreshold;
+    @Inject
+    public MotionHandler(CacheManager cacheManager) {
+        this.cacheManager = cacheManager;
     }
 
     @Override
     protected Position handlePosition(Position position) {
-        if (!position.getAttributes().containsKey(Position.KEY_MOTION)) {
-            position.set(Position.KEY_MOTION, position.getSpeed() > speedThreshold);
+        if (!position.hasAttribute(Position.KEY_MOTION)) {
+            double threshold = AttributeUtil.lookup(
+                    cacheManager, Keys.EVENT_MOTION_SPEED_THRESHOLD, position.getDeviceId());
+            position.set(Position.KEY_MOTION, position.getSpeed() > threshold);
         }
         return position;
     }
diff --git a/src/main/java/org/traccar/handler/NetworkForwarderHandler.java b/src/main/java/org/traccar/handler/NetworkForwarderHandler.java
new file mode 100644
index 000000000..470e175ca
--- /dev/null
+++ b/src/main/java/org/traccar/handler/NetworkForwarderHandler.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.handler;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelInboundHandlerAdapter;
+import io.netty.channel.socket.DatagramChannel;
+import io.netty.channel.socket.DatagramPacket;
+import org.traccar.forward.NetworkForwarder;
+
+import jakarta.inject.Inject;
+import java.net.InetSocketAddress;
+import java.net.SocketAddress;
+
+public class NetworkForwarderHandler extends ChannelInboundHandlerAdapter {
+
+    private final int port;
+
+    private NetworkForwarder networkForwarder;
+
+    public NetworkForwarderHandler(int port) {
+        this.port = port;
+    }
+
+    @Inject
+    public void setNetworkForwarder(NetworkForwarder networkForwarder) {
+        this.networkForwarder = networkForwarder;
+    }
+
+    @Override
+    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
+        boolean datagram = ctx.channel() instanceof DatagramChannel;
+        SocketAddress remoteAddress;
+        ByteBuf buffer;
+        if (datagram) {
+            DatagramPacket message = (DatagramPacket) msg;
+            remoteAddress = message.recipient();
+            buffer = message.content();
+        } else {
+            remoteAddress = ctx.channel().remoteAddress();
+            buffer = (ByteBuf) msg;
+        }
+
+        byte[] data = new byte[buffer.readableBytes()];
+        buffer.getBytes(buffer.readerIndex(), data);
+        networkForwarder.forward((InetSocketAddress) remoteAddress, port, datagram, data);
+        super.channelRead(ctx, msg);
+    }
+
+    @Override
+    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
+        if (!(ctx.channel() instanceof DatagramChannel)) {
+            networkForwarder.disconnect((InetSocketAddress) ctx.channel().remoteAddress());
+        }
+        super.channelInactive(ctx);
+    }
+
+}
diff --git a/src/main/java/org/traccar/handler/RemoteAddressHandler.java b/src/main/java/org/traccar/handler/RemoteAddressHandler.java
index c09b8c39a..61ada5b91 100644
--- a/src/main/java/org/traccar/handler/RemoteAddressHandler.java
+++ b/src/main/java/org/traccar/handler/RemoteAddressHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,22 +18,36 @@ package org.traccar.handler;
 import io.netty.channel.ChannelHandler;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
 import org.traccar.model.Position;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
 import java.net.InetSocketAddress;
 
+@Singleton
 @ChannelHandler.Sharable
 public class RemoteAddressHandler extends ChannelInboundHandlerAdapter {
 
+    private final boolean enabled;
+
+    @Inject
+    public RemoteAddressHandler(Config config) {
+        enabled = config.getBoolean(Keys.PROCESSING_REMOTE_ADDRESS_ENABLE);
+    }
+
     @Override
     public void channelRead(ChannelHandlerContext ctx, Object msg) {
 
-        InetSocketAddress remoteAddress = (InetSocketAddress) ctx.channel().remoteAddress();
-        String hostAddress = remoteAddress != null ? remoteAddress.getAddress().getHostAddress() : null;
+        if (enabled) {
+            InetSocketAddress remoteAddress = (InetSocketAddress) ctx.channel().remoteAddress();
+            String hostAddress = remoteAddress != null ? remoteAddress.getAddress().getHostAddress() : null;
 
-        if (msg instanceof Position) {
-            Position position = (Position) msg;
-            position.set(Position.KEY_IP, hostAddress);
+            if (msg instanceof Position) {
+                Position position = (Position) msg;
+                position.set(Position.KEY_IP, hostAddress);
+            }
         }
 
         ctx.fireChannelRead(msg);
diff --git a/src/main/java/org/traccar/handler/SpeedLimitHandler.java b/src/main/java/org/traccar/handler/SpeedLimitHandler.java
index 65f2c9cfe..6edb6e912 100644
--- a/src/main/java/org/traccar/handler/SpeedLimitHandler.java
+++ b/src/main/java/org/traccar/handler/SpeedLimitHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2020 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,6 +23,10 @@ import org.slf4j.LoggerFactory;
 import org.traccar.model.Position;
 import org.traccar.speedlimit.SpeedLimitProvider;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+
+@Singleton
 @ChannelHandler.Sharable
 public class SpeedLimitHandler extends ChannelInboundHandlerAdapter {
 
@@ -30,6 +34,7 @@ public class SpeedLimitHandler extends ChannelInboundHandlerAdapter {
 
     private final SpeedLimitProvider speedLimitProvider;
 
+    @Inject
     public SpeedLimitHandler(SpeedLimitProvider speedLimitProvider) {
         this.speedLimitProvider = speedLimitProvider;
     }
diff --git a/src/main/java/org/traccar/handler/StandardLoggingHandler.java b/src/main/java/org/traccar/handler/StandardLoggingHandler.java
index 13c5f8281..84492e2a5 100644
--- a/src/main/java/org/traccar/handler/StandardLoggingHandler.java
+++ b/src/main/java/org/traccar/handler/StandardLoggingHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2019 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,6 +23,7 @@ import io.netty.channel.ChannelPromise;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.traccar.NetworkMessage;
+import org.traccar.helper.NetworkUtil;
 
 import java.net.InetSocketAddress;
 import java.net.SocketAddress;
@@ -63,7 +64,7 @@ public class StandardLoggingHandler extends ChannelDuplexHandler {
     public void log(ChannelHandlerContext ctx, boolean downstream, SocketAddress remoteAddress, ByteBuf buf) {
         StringBuilder message = new StringBuilder();
 
-        message.append("[").append(ctx.channel().id().asShortText()).append(": ");
+        message.append("[").append(NetworkUtil.session(ctx.channel())).append(": ");
         message.append(protocol);
         if (downstream) {
             message.append(" > ");
@@ -76,9 +77,8 @@ public class StandardLoggingHandler extends ChannelDuplexHandler {
         } else {
             message.append("unknown");
         }
-        message.append("]");
+        message.append("] ");
 
-        message.append(" HEX: ");
         message.append(ByteBufUtil.hexDump(buf));
 
         LOGGER.info(message.toString());
diff --git a/src/main/java/org/traccar/handler/TimeHandler.java b/src/main/java/org/traccar/handler/TimeHandler.java
index 822c22a0a..3c3e17450 100644
--- a/src/main/java/org/traccar/handler/TimeHandler.java
+++ b/src/main/java/org/traccar/handler/TimeHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2019 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2019 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,24 +19,33 @@ import io.netty.channel.ChannelHandler;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
 import org.traccar.config.Config;
 import org.traccar.config.Keys;
 import org.traccar.model.Position;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
 import java.util.Arrays;
 import java.util.HashSet;
 import java.util.Set;
 
+@Singleton
 @ChannelHandler.Sharable
 public class TimeHandler extends ChannelInboundHandlerAdapter {
 
+    private final boolean enabled;
     private final boolean useServerTime;
     private final Set<String> protocols;
 
+    @Inject
     public TimeHandler(Config config) {
-        useServerTime = config.getString(Keys.TIME_OVERRIDE).equalsIgnoreCase("serverTime");
-        String protocolList = Context.getConfig().getString(Keys.TIME_PROTOCOLS);
+        enabled = config.hasKey(Keys.TIME_OVERRIDE);
+        if (enabled) {
+            useServerTime = config.getString(Keys.TIME_OVERRIDE).equalsIgnoreCase("serverTime");
+        } else {
+            useServerTime = false;
+        }
+        String protocolList = config.getString(Keys.TIME_PROTOCOLS);
         if (protocolList != null) {
             protocols = new HashSet<>(Arrays.asList(protocolList.split("[, ]")));
         } else {
@@ -47,7 +56,7 @@ public class TimeHandler extends ChannelInboundHandlerAdapter {
     @Override
     public void channelRead(ChannelHandlerContext ctx, Object msg) {
 
-        if (msg instanceof Position && (protocols == null
+        if (enabled && msg instanceof Position && (protocols == null
                 || protocols.contains(ctx.pipeline().get(BaseProtocolDecoder.class).getProtocolName()))) {
 
             Position position = (Position) msg;
diff --git a/src/main/java/org/traccar/handler/events/AlertEventHandler.java b/src/main/java/org/traccar/handler/events/AlertEventHandler.java
index 05dbc516e..531a0f957 100644
--- a/src/main/java/org/traccar/handler/events/AlertEventHandler.java
+++ b/src/main/java/org/traccar/handler/events/AlertEventHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,18 +21,23 @@ import java.util.Map;
 import io.netty.channel.ChannelHandler;
 import org.traccar.config.Config;
 import org.traccar.config.Keys;
-import org.traccar.database.IdentityManager;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+
+@Singleton
 @ChannelHandler.Sharable
 public class AlertEventHandler extends BaseEventHandler {
 
-    private final IdentityManager identityManager;
+    private final CacheManager cacheManager;
     private final boolean ignoreDuplicateAlerts;
 
-    public AlertEventHandler(Config config, IdentityManager identityManager) {
-        this.identityManager = identityManager;
+    @Inject
+    public AlertEventHandler(Config config, CacheManager cacheManager) {
+        this.cacheManager = cacheManager;
         ignoreDuplicateAlerts = config.getBoolean(Keys.EVENT_IGNORE_DUPLICATE_ALERTS);
     }
 
@@ -42,7 +47,7 @@ public class AlertEventHandler extends BaseEventHandler {
         if (alarm != null) {
             boolean ignoreAlert = false;
             if (ignoreDuplicateAlerts) {
-                Position lastPosition = identityManager.getLastPosition(position.getDeviceId());
+                Position lastPosition = cacheManager.getPosition(position.getDeviceId());
                 if (lastPosition != null && alarm.equals(lastPosition.getAttributes().get(Position.KEY_ALARM))) {
                     ignoreAlert = true;
                 }
diff --git a/src/main/java/org/traccar/handler/events/BaseEventHandler.java b/src/main/java/org/traccar/handler/events/BaseEventHandler.java
index 41f677f6c..4a4fb40ff 100644
--- a/src/main/java/org/traccar/handler/events/BaseEventHandler.java
+++ b/src/main/java/org/traccar/handler/events/BaseEventHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,17 +18,26 @@ package org.traccar.handler.events;
 import java.util.Map;
 
 import org.traccar.BaseDataHandler;
-import org.traccar.Context;
+import org.traccar.database.NotificationManager;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
 
+import jakarta.inject.Inject;
+
 public abstract class BaseEventHandler extends BaseDataHandler {
 
+    private NotificationManager notificationManager;
+
+    @Inject
+    public void setNotificationManager(NotificationManager notificationManager) {
+        this.notificationManager = notificationManager;
+    }
+
     @Override
     protected Position handlePosition(Position position) {
         Map<Event, Position> events = analyzePosition(position);
-        if (events != null && Context.getNotificationManager() != null) {
-            Context.getNotificationManager().updateEvents(events);
+        if (events != null && !events.isEmpty()) {
+            notificationManager.updateEvents(events);
         }
         return position;
     }
diff --git a/src/main/java/org/traccar/handler/events/BehaviorEventHandler.java b/src/main/java/org/traccar/handler/events/BehaviorEventHandler.java
index 767cef3f6..08ae35fcd 100644
--- a/src/main/java/org/traccar/handler/events/BehaviorEventHandler.java
+++ b/src/main/java/org/traccar/handler/events/BehaviorEventHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2021 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,32 +18,36 @@ package org.traccar.handler.events;
 import io.netty.channel.ChannelHandler;
 import org.traccar.config.Config;
 import org.traccar.config.Keys;
-import org.traccar.database.IdentityManager;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
 import java.util.Collections;
 import java.util.Map;
 
+@Singleton
 @ChannelHandler.Sharable
 public class BehaviorEventHandler extends BaseEventHandler {
 
     private final double accelerationThreshold;
     private final double brakingThreshold;
 
-    private final IdentityManager identityManager;
+    private final CacheManager cacheManager;
 
-    public BehaviorEventHandler(Config config, IdentityManager identityManager) {
+    @Inject
+    public BehaviorEventHandler(Config config, CacheManager cacheManager) {
         accelerationThreshold = config.getDouble(Keys.EVENT_BEHAVIOR_ACCELERATION_THRESHOLD);
         brakingThreshold = config.getDouble(Keys.EVENT_BEHAVIOR_BRAKING_THRESHOLD);
-        this.identityManager = identityManager;
+        this.cacheManager = cacheManager;
     }
 
     @Override
     protected Map<Event, Position> analyzePosition(Position position) {
 
-        Position lastPosition = identityManager.getLastPosition(position.getDeviceId());
+        Position lastPosition = cacheManager.getPosition(position.getDeviceId());
         if (lastPosition != null && position.getFixTime().equals(lastPosition.getFixTime())) {
             double acceleration = UnitsConverter.mpsFromKnots(position.getSpeed() - lastPosition.getSpeed()) * 1000
                     / (position.getFixTime().getTime() - lastPosition.getFixTime().getTime());
diff --git a/src/main/java/org/traccar/handler/events/CommandResultEventHandler.java b/src/main/java/org/traccar/handler/events/CommandResultEventHandler.java
index 9b7ff554e..b70f8f33b 100644
--- a/src/main/java/org/traccar/handler/events/CommandResultEventHandler.java
+++ b/src/main/java/org/traccar/handler/events/CommandResultEventHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,9 +22,17 @@ import io.netty.channel.ChannelHandler;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+
+@Singleton
 @ChannelHandler.Sharable
 public class CommandResultEventHandler extends BaseEventHandler {
 
+    @Inject
+    public CommandResultEventHandler() {
+    }
+
     @Override
     protected Map<Event, Position> analyzePosition(Position position) {
         Object commandResult = position.getAttributes().get(Position.KEY_RESULT);
diff --git a/src/main/java/org/traccar/handler/events/DriverEventHandler.java b/src/main/java/org/traccar/handler/events/DriverEventHandler.java
index 6fdf4246b..b68327983 100644
--- a/src/main/java/org/traccar/handler/events/DriverEventHandler.java
+++ b/src/main/java/org/traccar/handler/events/DriverEventHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,32 +16,37 @@
  */
 package org.traccar.handler.events;
 
-import java.util.Collections;
-import java.util.Map;
-
 import io.netty.channel.ChannelHandler;
-import org.traccar.database.IdentityManager;
+import org.traccar.helper.model.PositionUtil;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.util.Collections;
+import java.util.Map;
 
+@Singleton
 @ChannelHandler.Sharable
 public class DriverEventHandler extends BaseEventHandler {
 
-    private final IdentityManager identityManager;
+    private final CacheManager cacheManager;
 
-    public DriverEventHandler(IdentityManager identityManager) {
-        this.identityManager = identityManager;
+    @Inject
+    public DriverEventHandler(CacheManager cacheManager) {
+        this.cacheManager = cacheManager;
     }
 
     @Override
     protected Map<Event, Position> analyzePosition(Position position) {
-        if (!identityManager.isLatestPosition(position)) {
+        if (!PositionUtil.isLatest(cacheManager, position)) {
             return null;
         }
         String driverUniqueId = position.getString(Position.KEY_DRIVER_UNIQUE_ID);
         if (driverUniqueId != null) {
             String oldDriverUniqueId = null;
-            Position lastPosition = identityManager.getLastPosition(position.getDeviceId());
+            Position lastPosition = cacheManager.getPosition(position.getDeviceId());
             if (lastPosition != null) {
                 oldDriverUniqueId = lastPosition.getString(Position.KEY_DRIVER_UNIQUE_ID);
             }
diff --git a/src/main/java/org/traccar/handler/events/FuelDropEventHandler.java b/src/main/java/org/traccar/handler/events/FuelDropEventHandler.java
deleted file mode 100644
index 343a17311..000000000
--- a/src/main/java/org/traccar/handler/events/FuelDropEventHandler.java
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright 2017 - 2019 Anton Tananaev (anton@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.handler.events;
-
-import io.netty.channel.ChannelHandler;
-import org.traccar.database.IdentityManager;
-import org.traccar.model.Device;
-import org.traccar.model.Event;
-import org.traccar.model.Position;
-
-import java.util.Collections;
-import java.util.Map;
-
-@ChannelHandler.Sharable
-public class FuelDropEventHandler extends BaseEventHandler {
-
-    public static final String ATTRIBUTE_FUEL_DROP_THRESHOLD = "fuelDropThreshold";
-
-    private final IdentityManager identityManager;
-
-    public FuelDropEventHandler(IdentityManager identityManager) {
-        this.identityManager = identityManager;
-    }
-
-    @Override
-    protected Map<Event, Position> analyzePosition(Position position) {
-
-        Device device = identityManager.getById(position.getDeviceId());
-        if (device == null) {
-            return null;
-        }
-        if (!identityManager.isLatestPosition(position)) {
-            return null;
-        }
-
-        double fuelDropThreshold = identityManager
-                .lookupAttributeDouble(device.getId(), ATTRIBUTE_FUEL_DROP_THRESHOLD, 0, true, false);
-
-        if (fuelDropThreshold > 0) {
-            Position lastPosition = identityManager.getLastPosition(position.getDeviceId());
-            if (position.getAttributes().containsKey(Position.KEY_FUEL_LEVEL)
-                    && lastPosition != null && lastPosition.getAttributes().containsKey(Position.KEY_FUEL_LEVEL)) {
-
-                double drop = lastPosition.getDouble(Position.KEY_FUEL_LEVEL)
-                        - position.getDouble(Position.KEY_FUEL_LEVEL);
-                if (drop >= fuelDropThreshold) {
-                    Event event = new Event(Event.TYPE_DEVICE_FUEL_DROP, position);
-                    event.set(ATTRIBUTE_FUEL_DROP_THRESHOLD, fuelDropThreshold);
-                    return Collections.singletonMap(event, position);
-                }
-            }
-        }
-
-        return null;
-    }
-
-}
diff --git a/src/main/java/org/traccar/handler/events/FuelEventHandler.java b/src/main/java/org/traccar/handler/events/FuelEventHandler.java
new file mode 100644
index 000000000..e5085ecc2
--- /dev/null
+++ b/src/main/java/org/traccar/handler/events/FuelEventHandler.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2017 - 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.handler.events;
+
+import io.netty.channel.ChannelHandler;
+import org.traccar.config.Keys;
+import org.traccar.helper.model.AttributeUtil;
+import org.traccar.helper.model.PositionUtil;
+import org.traccar.model.Device;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.util.Map;
+
+@Singleton
+@ChannelHandler.Sharable
+public class FuelEventHandler extends BaseEventHandler {
+
+    private final CacheManager cacheManager;
+
+    @Inject
+    public FuelEventHandler(CacheManager cacheManager) {
+        this.cacheManager = cacheManager;
+    }
+
+    @Override
+    protected Map<Event, Position> analyzePosition(Position position) {
+
+        Device device = cacheManager.getObject(Device.class, position.getDeviceId());
+        if (device == null) {
+            return null;
+        }
+        if (!PositionUtil.isLatest(cacheManager, position)) {
+            return null;
+        }
+
+        if (position.hasAttribute(Position.KEY_FUEL_LEVEL)) {
+            Position lastPosition = cacheManager.getPosition(position.getDeviceId());
+            if (lastPosition != null && lastPosition.hasAttribute(Position.KEY_FUEL_LEVEL)) {
+                double before = lastPosition.getDouble(Position.KEY_FUEL_LEVEL);
+                double after = position.getDouble(Position.KEY_FUEL_LEVEL);
+                double change = after - before;
+
+                if (change > 0) {
+                    double threshold = AttributeUtil.lookup(
+                            cacheManager, Keys.EVENT_FUEL_INCREASE_THRESHOLD, position.getDeviceId());
+                    if (threshold > 0 && change >= threshold) {
+                        return Map.of(new Event(Event.TYPE_DEVICE_FUEL_INCREASE, position), position);
+                    }
+                } else if (change < 0) {
+                    double threshold = AttributeUtil.lookup(
+                            cacheManager, Keys.EVENT_FUEL_DROP_THRESHOLD, position.getDeviceId());
+                    if (threshold > 0 && Math.abs(change) >= threshold) {
+                        return Map.of(new Event(Event.TYPE_DEVICE_FUEL_DROP, position), position);
+                    }
+                }
+            }
+        }
+
+        return null;
+    }
+
+}
diff --git a/src/main/java/org/traccar/handler/events/GeofenceEventHandler.java b/src/main/java/org/traccar/handler/events/GeofenceEventHandler.java
index dae0c891f..dbe2b8118 100644
--- a/src/main/java/org/traccar/handler/events/GeofenceEventHandler.java
+++ b/src/main/java/org/traccar/handler/events/GeofenceEventHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,75 +15,67 @@
  */
 package org.traccar.handler.events;
 
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
 import io.netty.channel.ChannelHandler;
-import org.traccar.database.CalendarManager;
-import org.traccar.database.ConnectionManager;
-import org.traccar.database.GeofenceManager;
-import org.traccar.database.IdentityManager;
+import org.traccar.helper.model.PositionUtil;
 import org.traccar.model.Calendar;
-import org.traccar.model.Device;
 import org.traccar.model.Event;
+import org.traccar.model.Geofence;
 import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@Singleton
 @ChannelHandler.Sharable
 public class GeofenceEventHandler extends BaseEventHandler {
 
-    private final IdentityManager identityManager;
-    private final GeofenceManager geofenceManager;
-    private final CalendarManager calendarManager;
-    private final ConnectionManager connectionManager;
+    private final CacheManager cacheManager;
 
-    public GeofenceEventHandler(
-            IdentityManager identityManager, GeofenceManager geofenceManager, CalendarManager calendarManager,
-            ConnectionManager connectionManager) {
-        this.identityManager = identityManager;
-        this.geofenceManager = geofenceManager;
-        this.calendarManager = calendarManager;
-        this.connectionManager = connectionManager;
+    @Inject
+    public GeofenceEventHandler(CacheManager cacheManager) {
+        this.cacheManager = cacheManager;
     }
 
     @Override
     protected Map<Event, Position> analyzePosition(Position position) {
-        Device device = identityManager.getById(position.getDeviceId());
-        if (device == null) {
-            return null;
-        }
-        if (!identityManager.isLatestPosition(position) || !position.getValid()) {
+        if (!PositionUtil.isLatest(cacheManager, position)) {
             return null;
         }
 
-        List<Long> currentGeofences = geofenceManager.getCurrentDeviceGeofences(position);
         List<Long> oldGeofences = new ArrayList<>();
-        if (device.getGeofenceIds() != null) {
-            oldGeofences.addAll(device.getGeofenceIds());
+        Position lastPosition = cacheManager.getPosition(position.getDeviceId());
+        if (lastPosition != null && lastPosition.getGeofenceIds() != null) {
+            oldGeofences.addAll(lastPosition.getGeofenceIds());
         }
-        List<Long> newGeofences = new ArrayList<>(currentGeofences);
-        newGeofences.removeAll(oldGeofences);
-        oldGeofences.removeAll(currentGeofences);
 
-        device.setGeofenceIds(currentGeofences);
-        if (!oldGeofences.isEmpty() || !newGeofences.isEmpty()) {
-            connectionManager.updateDevice(device);
+        List<Long> newGeofences = new ArrayList<>();
+        if (position.getGeofenceIds() != null) {
+            newGeofences.addAll(position.getGeofenceIds());
+            newGeofences.removeAll(oldGeofences);
+            oldGeofences.removeAll(position.getGeofenceIds());
         }
 
         Map<Event, Position> events = new HashMap<>();
         for (long geofenceId : oldGeofences) {
-            long calendarId = geofenceManager.getById(geofenceId).getCalendarId();
-            Calendar calendar = calendarId != 0 ? calendarManager.getById(calendarId) : null;
-            if (calendar == null || calendar.checkMoment(position.getFixTime())) {
-                Event event = new Event(Event.TYPE_GEOFENCE_EXIT, position);
-                event.setGeofenceId(geofenceId);
-                events.put(event, position);
+            Geofence geofence = cacheManager.getObject(Geofence.class, geofenceId);
+            if (geofence != null) {
+                long calendarId = geofence.getCalendarId();
+                Calendar calendar = calendarId != 0 ? cacheManager.getObject(Calendar.class, calendarId) : null;
+                if (calendar == null || calendar.checkMoment(position.getFixTime())) {
+                    Event event = new Event(Event.TYPE_GEOFENCE_EXIT, position);
+                    event.setGeofenceId(geofenceId);
+                    events.put(event, position);
+                }
             }
         }
         for (long geofenceId : newGeofences) {
-            long calendarId = geofenceManager.getById(geofenceId).getCalendarId();
-            Calendar calendar = calendarId != 0 ? calendarManager.getById(calendarId) : null;
+            long calendarId = cacheManager.getObject(Geofence.class, geofenceId).getCalendarId();
+            Calendar calendar = calendarId != 0 ? cacheManager.getObject(Calendar.class, calendarId) : null;
             if (calendar == null || calendar.checkMoment(position.getFixTime())) {
                 Event event = new Event(Event.TYPE_GEOFENCE_ENTER, position);
                 event.setGeofenceId(geofenceId);
diff --git a/src/main/java/org/traccar/handler/events/IgnitionEventHandler.java b/src/main/java/org/traccar/handler/events/IgnitionEventHandler.java
index 69df9a46b..ba4159a42 100644
--- a/src/main/java/org/traccar/handler/events/IgnitionEventHandler.java
+++ b/src/main/java/org/traccar/handler/events/IgnitionEventHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2016 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -20,34 +20,40 @@ import java.util.Collections;
 import java.util.Map;
 
 import io.netty.channel.ChannelHandler;
-import org.traccar.database.IdentityManager;
+import org.traccar.helper.model.PositionUtil;
 import org.traccar.model.Device;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+
+@Singleton
 @ChannelHandler.Sharable
 public class IgnitionEventHandler extends BaseEventHandler {
 
-    private final IdentityManager identityManager;
+    private final CacheManager cacheManager;
 
-    public IgnitionEventHandler(IdentityManager identityManager) {
-        this.identityManager = identityManager;
+    @Inject
+    public IgnitionEventHandler(CacheManager cacheManager) {
+        this.cacheManager = cacheManager;
     }
 
     @Override
     protected Map<Event, Position> analyzePosition(Position position) {
-        Device device = identityManager.getById(position.getDeviceId());
-        if (device == null || !identityManager.isLatestPosition(position)) {
+        Device device = cacheManager.getObject(Device.class, position.getDeviceId());
+        if (device == null || !PositionUtil.isLatest(cacheManager, position)) {
             return null;
         }
 
         Map<Event, Position> result = null;
 
-        if (position.getAttributes().containsKey(Position.KEY_IGNITION)) {
+        if (position.hasAttribute(Position.KEY_IGNITION)) {
             boolean ignition = position.getBoolean(Position.KEY_IGNITION);
 
-            Position lastPosition = identityManager.getLastPosition(position.getDeviceId());
-            if (lastPosition != null && lastPosition.getAttributes().containsKey(Position.KEY_IGNITION)) {
+            Position lastPosition = cacheManager.getPosition(position.getDeviceId());
+            if (lastPosition != null && lastPosition.hasAttribute(Position.KEY_IGNITION)) {
                 boolean oldIgnition = lastPosition.getBoolean(Position.KEY_IGNITION);
 
                 if (ignition && !oldIgnition) {
diff --git a/src/main/java/org/traccar/handler/events/MaintenanceEventHandler.java b/src/main/java/org/traccar/handler/events/MaintenanceEventHandler.java
index 0f960ad1f..6c4271ce2 100644
--- a/src/main/java/org/traccar/handler/events/MaintenanceEventHandler.java
+++ b/src/main/java/org/traccar/handler/events/MaintenanceEventHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2016 - 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -20,48 +20,46 @@ import java.util.HashMap;
 import java.util.Map;
 
 import io.netty.channel.ChannelHandler;
-import org.traccar.database.IdentityManager;
-import org.traccar.database.MaintenancesManager;
 import org.traccar.model.Event;
 import org.traccar.model.Maintenance;
 import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+
+@Singleton
 @ChannelHandler.Sharable
 public class MaintenanceEventHandler extends BaseEventHandler {
 
-    private final IdentityManager identityManager;
-    private final MaintenancesManager maintenancesManager;
+    private final CacheManager cacheManager;
 
-    public MaintenanceEventHandler(IdentityManager identityManager, MaintenancesManager maintenancesManager) {
-        this.identityManager = identityManager;
-        this.maintenancesManager = maintenancesManager;
+    @Inject
+    public MaintenanceEventHandler(CacheManager cacheManager) {
+        this.cacheManager = cacheManager;
     }
 
     @Override
     protected Map<Event, Position> analyzePosition(Position position) {
-        if (identityManager.getById(position.getDeviceId()) == null
-                || !identityManager.isLatestPosition(position)) {
-            return null;
-        }
-
-        Position lastPosition = identityManager.getLastPosition(position.getDeviceId());
-        if (lastPosition == null) {
+        Position lastPosition = cacheManager.getPosition(position.getDeviceId());
+        if (lastPosition == null || position.getFixTime().compareTo(lastPosition.getFixTime()) < 0) {
             return null;
         }
 
         Map<Event, Position> events = new HashMap<>();
-        for (long maintenanceId : maintenancesManager.getAllDeviceItems(position.getDeviceId())) {
-            Maintenance maintenance = maintenancesManager.getById(maintenanceId);
+        for (Maintenance maintenance : cacheManager.getDeviceObjects(position.getDeviceId(), Maintenance.class)) {
             if (maintenance.getPeriod() != 0) {
                 double oldValue = lastPosition.getDouble(maintenance.getType());
                 double newValue = position.getDouble(maintenance.getType());
-                if (oldValue != 0.0 && newValue != 0.0
-                        && (long) ((oldValue - maintenance.getStart()) / maintenance.getPeriod())
+                if (oldValue != 0.0 && newValue != 0.0 && newValue >= maintenance.getStart()) {
+                    if (oldValue < maintenance.getStart()
+                        || (long) ((oldValue - maintenance.getStart()) / maintenance.getPeriod())
                         < (long) ((newValue - maintenance.getStart()) / maintenance.getPeriod())) {
-                    Event event = new Event(Event.TYPE_MAINTENANCE, position);
-                    event.setMaintenanceId(maintenanceId);
-                    event.set(maintenance.getType(), newValue);
-                    events.put(event, position);
+                        Event event = new Event(Event.TYPE_MAINTENANCE, position);
+                        event.setMaintenanceId(maintenance.getId());
+                        event.set(maintenance.getType(), newValue);
+                        events.put(event, position);
+                    }
                 }
             }
         }
diff --git a/src/main/java/org/traccar/handler/events/MediaEventHandler.java b/src/main/java/org/traccar/handler/events/MediaEventHandler.java
new file mode 100644
index 000000000..52d8e6961
--- /dev/null
+++ b/src/main/java/org/traccar/handler/events/MediaEventHandler.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.handler.events;
+
+import io.netty.channel.ChannelHandler;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.util.Map;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+@Singleton
+@ChannelHandler.Sharable
+public class MediaEventHandler extends BaseEventHandler {
+
+    @Inject
+    public MediaEventHandler() {
+    }
+
+    @Override
+    protected Map<Event, Position> analyzePosition(Position position) {
+        return Stream.of(Position.KEY_IMAGE, Position.KEY_VIDEO, Position.KEY_AUDIO)
+                .filter(position::hasAttribute)
+                .map(type -> {
+                    Event event = new Event(Event.TYPE_MEDIA, position);
+                    event.set("media", type);
+                    event.set("file", position.getString(type));
+                    return event;
+                })
+                .collect(Collectors.toMap(event -> event, event -> position));
+    }
+
+}
diff --git a/src/main/java/org/traccar/handler/events/MotionEventHandler.java b/src/main/java/org/traccar/handler/events/MotionEventHandler.java
index db276f32b..15902d6d4 100644
--- a/src/main/java/org/traccar/handler/events/MotionEventHandler.java
+++ b/src/main/java/org/traccar/handler/events/MotionEventHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2023 Anton Tananaev (anton@traccar.org)
  * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,120 +16,73 @@
  */
 package org.traccar.handler.events;
 
-import java.util.Collections;
-import java.util.Map;
-
 import io.netty.channel.ChannelHandler;
-import org.traccar.database.DeviceManager;
-import org.traccar.database.IdentityManager;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.config.Keys;
+import org.traccar.helper.model.AttributeUtil;
+import org.traccar.helper.model.PositionUtil;
 import org.traccar.model.Device;
-import org.traccar.model.DeviceState;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
-import org.traccar.reports.ReportUtils;
-import org.traccar.reports.model.TripsConfig;
+import org.traccar.reports.common.TripsConfig;
+import org.traccar.session.cache.CacheManager;
+import org.traccar.session.state.MotionProcessor;
+import org.traccar.session.state.MotionState;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.util.Collections;
+import java.util.Map;
 
+@Singleton
 @ChannelHandler.Sharable
 public class MotionEventHandler extends BaseEventHandler {
 
-    private final IdentityManager identityManager;
-    private final DeviceManager deviceManager;
-    private final TripsConfig tripsConfig;
-
-    public MotionEventHandler(IdentityManager identityManager, DeviceManager deviceManager, TripsConfig tripsConfig) {
-        this.identityManager = identityManager;
-        this.deviceManager = deviceManager;
-        this.tripsConfig = tripsConfig;
-    }
-
-    private Map<Event, Position> newEvent(DeviceState deviceState, boolean newMotion) {
-        String eventType = newMotion ? Event.TYPE_DEVICE_MOVING : Event.TYPE_DEVICE_STOPPED;
-        Position position = deviceState.getMotionPosition();
-        Event event = new Event(eventType, position);
-        deviceState.setMotionState(newMotion);
-        deviceState.setMotionPosition(null);
-        return Collections.singletonMap(event, position);
-    }
+    private static final Logger LOGGER = LoggerFactory.getLogger(MotionEventHandler.class);
 
-    public Map<Event, Position> updateMotionState(DeviceState deviceState) {
-        Map<Event, Position> result = null;
-        if (deviceState.getMotionState() != null && deviceState.getMotionPosition() != null) {
-            boolean newMotion = !deviceState.getMotionState();
-            Position motionPosition = deviceState.getMotionPosition();
-            long currentTime = System.currentTimeMillis();
-            long motionTime = motionPosition.getFixTime().getTime()
-                    + (newMotion ? tripsConfig.getMinimalTripDuration() : tripsConfig.getMinimalParkingDuration());
-            if (motionTime <= currentTime) {
-                result = newEvent(deviceState, newMotion);
-            }
-        }
-        return result;
-    }
+    private final CacheManager cacheManager;
+    private final Storage storage;
 
-    public Map<Event, Position> updateMotionState(DeviceState deviceState, Position position) {
-        return updateMotionState(deviceState, position, position.getBoolean(Position.KEY_MOTION));
-    }
-
-    public Map<Event, Position> updateMotionState(DeviceState deviceState, Position position, boolean newMotion) {
-        Map<Event, Position> result = null;
-        Boolean oldMotion = deviceState.getMotionState();
-
-        long currentTime = position.getFixTime().getTime();
-        if (newMotion != oldMotion) {
-            if (deviceState.getMotionPosition() == null) {
-                deviceState.setMotionPosition(position);
-            }
-        } else {
-            deviceState.setMotionPosition(null);
-        }
-
-        Position motionPosition = deviceState.getMotionPosition();
-        if (motionPosition != null) {
-            long motionTime = motionPosition.getFixTime().getTime();
-            double distance = ReportUtils.calculateDistance(motionPosition, position, false);
-            Boolean ignition = null;
-            if (tripsConfig.getUseIgnition()
-                    && position.getAttributes().containsKey(Position.KEY_IGNITION)) {
-                ignition = position.getBoolean(Position.KEY_IGNITION);
-            }
-            if (newMotion) {
-                if (motionTime + tripsConfig.getMinimalTripDuration() <= currentTime
-                        || distance >= tripsConfig.getMinimalTripDistance()) {
-                    result = newEvent(deviceState, newMotion);
-                }
-            } else {
-                if (motionTime + tripsConfig.getMinimalParkingDuration() <= currentTime
-                        || ignition != null && !ignition) {
-                    result = newEvent(deviceState, newMotion);
-                }
-            }
-        }
-        return result;
+    @Inject
+    public MotionEventHandler(CacheManager cacheManager, Storage storage) {
+        this.cacheManager = cacheManager;
+        this.storage = storage;
     }
 
     @Override
     protected Map<Event, Position> analyzePosition(Position position) {
 
         long deviceId = position.getDeviceId();
-        Device device = identityManager.getById(deviceId);
-        if (device == null) {
+        Device device = cacheManager.getObject(Device.class, deviceId);
+        if (device == null || !PositionUtil.isLatest(cacheManager, position)) {
             return null;
         }
-        if (!identityManager.isLatestPosition(position)
-                || !tripsConfig.getProcessInvalidPositions() && !position.getValid()) {
+        boolean processInvalid = AttributeUtil.lookup(
+                cacheManager, Keys.EVENT_MOTION_PROCESS_INVALID_POSITIONS, deviceId);
+        if (!processInvalid && !position.getValid()) {
             return null;
         }
 
-        Map<Event, Position> result = null;
-        DeviceState deviceState = deviceManager.getDeviceState(deviceId);
-
-        if (deviceState.getMotionState() == null) {
-            deviceState.setMotionState(position.getBoolean(Position.KEY_MOTION));
-        } else {
-            result = updateMotionState(deviceState, position);
+        TripsConfig tripsConfig = new TripsConfig(new AttributeUtil.CacheProvider(cacheManager, deviceId));
+        MotionState state = MotionState.fromDevice(device);
+        MotionProcessor.updateState(state, position, position.getBoolean(Position.KEY_MOTION), tripsConfig);
+        if (state.isChanged()) {
+            state.toDevice(device);
+            try {
+                storage.updateObject(device, new Request(
+                        new Columns.Include("motionStreak", "motionState", "motionTime", "motionDistance"),
+                        new Condition.Equals("id", device.getId())));
+            } catch (StorageException e) {
+                LOGGER.warn("Update device motion error", e);
+            }
         }
-        deviceManager.setDeviceState(deviceId, deviceState);
-        return result;
+        return state.getEvent() != null ? Collections.singletonMap(state.getEvent(), position) : null;
     }
 
 }
diff --git a/src/main/java/org/traccar/handler/events/OverspeedEventHandler.java b/src/main/java/org/traccar/handler/events/OverspeedEventHandler.java
index 347ad9005..3bb5f713c 100644
--- a/src/main/java/org/traccar/handler/events/OverspeedEventHandler.java
+++ b/src/main/java/org/traccar/handler/events/OverspeedEventHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2023 Anton Tananaev (anton@traccar.org)
  * Copyright 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,111 +16,67 @@
  */
 package org.traccar.handler.events;
 
-import java.util.Collections;
-import java.util.Map;
-
 import io.netty.channel.ChannelHandler;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.traccar.config.Config;
 import org.traccar.config.Keys;
-import org.traccar.database.DeviceManager;
-import org.traccar.database.GeofenceManager;
+import org.traccar.helper.model.AttributeUtil;
+import org.traccar.helper.model.PositionUtil;
 import org.traccar.model.Device;
-import org.traccar.model.DeviceState;
 import org.traccar.model.Event;
 import org.traccar.model.Geofence;
 import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
+import org.traccar.session.state.OverspeedProcessor;
+import org.traccar.session.state.OverspeedState;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.util.Collections;
+import java.util.Map;
 
+@Singleton
 @ChannelHandler.Sharable
 public class OverspeedEventHandler extends BaseEventHandler {
 
-    public static final String ATTRIBUTE_SPEED = "speed";
-    public static final String ATTRIBUTE_SPEED_LIMIT = "speedLimit";
+    private static final Logger LOGGER = LoggerFactory.getLogger(OverspeedEventHandler.class);
 
-    private final DeviceManager deviceManager;
-    private final GeofenceManager geofenceManager;
+    private final CacheManager cacheManager;
+    private final Storage storage;
 
-    private final boolean notRepeat;
     private final long minimalDuration;
     private final boolean preferLowest;
+    private final double multiplier;
 
-    public OverspeedEventHandler(Config config, DeviceManager deviceManager, GeofenceManager geofenceManager) {
-        this.deviceManager = deviceManager;
-        this.geofenceManager = geofenceManager;
-        notRepeat = config.getBoolean(Keys.EVENT_OVERSPEED_NOT_REPEAT);
+    @Inject
+    public OverspeedEventHandler(
+            Config config, CacheManager cacheManager, Storage storage) {
+        this.cacheManager = cacheManager;
+        this.storage = storage;
         minimalDuration = config.getLong(Keys.EVENT_OVERSPEED_MINIMAL_DURATION) * 1000;
         preferLowest = config.getBoolean(Keys.EVENT_OVERSPEED_PREFER_LOWEST);
-    }
-
-    private Map<Event, Position> newEvent(DeviceState deviceState, double speedLimit) {
-        Position position = deviceState.getOverspeedPosition();
-        Event event = new Event(Event.TYPE_DEVICE_OVERSPEED, position);
-        event.set(ATTRIBUTE_SPEED, deviceState.getOverspeedPosition().getSpeed());
-        event.set(ATTRIBUTE_SPEED_LIMIT, speedLimit);
-        event.setGeofenceId(deviceState.getOverspeedGeofenceId());
-        deviceState.setOverspeedState(notRepeat);
-        deviceState.setOverspeedPosition(null);
-        deviceState.setOverspeedGeofenceId(0);
-        return Collections.singletonMap(event, position);
-    }
-
-    public Map<Event, Position> updateOverspeedState(DeviceState deviceState, double speedLimit) {
-        Map<Event, Position> result = null;
-        if (deviceState.getOverspeedState() != null && !deviceState.getOverspeedState()
-                && deviceState.getOverspeedPosition() != null && speedLimit != 0) {
-            long currentTime = System.currentTimeMillis();
-            Position overspeedPosition = deviceState.getOverspeedPosition();
-            long overspeedTime = overspeedPosition.getFixTime().getTime();
-            if (overspeedTime + minimalDuration <= currentTime) {
-                result = newEvent(deviceState, speedLimit);
-            }
-        }
-        return result;
-    }
-
-    public Map<Event, Position> updateOverspeedState(
-            DeviceState deviceState, Position position, double speedLimit, long geofenceId) {
-        Map<Event, Position> result = null;
-
-        Boolean oldOverspeed = deviceState.getOverspeedState();
-
-        long currentTime = position.getFixTime().getTime();
-        boolean newOverspeed = position.getSpeed() > speedLimit;
-        if (newOverspeed && !oldOverspeed) {
-            if (deviceState.getOverspeedPosition() == null) {
-                deviceState.setOverspeedPosition(position);
-                deviceState.setOverspeedGeofenceId(geofenceId);
-            }
-        } else if (oldOverspeed && !newOverspeed) {
-            deviceState.setOverspeedState(false);
-            deviceState.setOverspeedPosition(null);
-            deviceState.setOverspeedGeofenceId(0);
-        } else {
-            deviceState.setOverspeedPosition(null);
-            deviceState.setOverspeedGeofenceId(0);
-        }
-        Position overspeedPosition = deviceState.getOverspeedPosition();
-        if (overspeedPosition != null) {
-            long overspeedTime = overspeedPosition.getFixTime().getTime();
-            if (newOverspeed && overspeedTime + minimalDuration <= currentTime) {
-                result = newEvent(deviceState, speedLimit);
-            }
-        }
-        return result;
+        multiplier = config.getDouble(Keys.EVENT_OVERSPEED_THRESHOLD_MULTIPLIER);
     }
 
     @Override
     protected Map<Event, Position> analyzePosition(Position position) {
 
         long deviceId = position.getDeviceId();
-        Device device = deviceManager.getById(deviceId);
+        Device device = cacheManager.getObject(Device.class, position.getDeviceId());
         if (device == null) {
             return null;
         }
-        if (!deviceManager.isLatestPosition(position) || !position.getValid()) {
+        if (!PositionUtil.isLatest(cacheManager, position) || !position.getValid()) {
             return null;
         }
 
-        double speedLimit = deviceManager.lookupAttributeDouble(deviceId, ATTRIBUTE_SPEED_LIMIT, 0, true, false);
+        double speedLimit = AttributeUtil.lookup(cacheManager, Keys.EVENT_OVERSPEED_LIMIT, deviceId);
 
         double positionSpeedLimit = position.getDouble(Position.KEY_SPEED_LIMIT);
         if (positionSpeedLimit > 0) {
@@ -130,11 +86,11 @@ public class OverspeedEventHandler extends BaseEventHandler {
         double geofenceSpeedLimit = 0;
         long overspeedGeofenceId = 0;
 
-        if (geofenceManager != null && device.getGeofenceIds() != null) {
-            for (long geofenceId : device.getGeofenceIds()) {
-                Geofence geofence = geofenceManager.getById(geofenceId);
+        if (position.getGeofenceIds() != null) {
+            for (long geofenceId : position.getGeofenceIds()) {
+                Geofence geofence = cacheManager.getObject(Geofence.class, geofenceId);
                 if (geofence != null) {
-                    double currentSpeedLimit = geofence.getDouble(ATTRIBUTE_SPEED_LIMIT);
+                    double currentSpeedLimit = geofence.getDouble(Keys.EVENT_OVERSPEED_LIMIT.getKey());
                     if (currentSpeedLimit > 0 && geofenceSpeedLimit == 0
                             || preferLowest && currentSpeedLimit < geofenceSpeedLimit
                             || !preferLowest && currentSpeedLimit > geofenceSpeedLimit) {
@@ -152,18 +108,19 @@ public class OverspeedEventHandler extends BaseEventHandler {
             return null;
         }
 
-        Map<Event, Position> result = null;
-        DeviceState deviceState = deviceManager.getDeviceState(deviceId);
-
-        if (deviceState.getOverspeedState() == null) {
-            deviceState.setOverspeedState(position.getSpeed() > speedLimit);
-            deviceState.setOverspeedGeofenceId(position.getSpeed() > speedLimit ? overspeedGeofenceId : 0);
-        } else {
-            result = updateOverspeedState(deviceState, position, speedLimit, overspeedGeofenceId);
+        OverspeedState state = OverspeedState.fromDevice(device);
+        OverspeedProcessor.updateState(state, position, speedLimit, multiplier, minimalDuration, overspeedGeofenceId);
+        if (state.isChanged()) {
+            state.toDevice(device);
+            try {
+                storage.updateObject(device, new Request(
+                        new Columns.Include("overspeedState", "overspeedTime", "overspeedGeofenceId"),
+                        new Condition.Equals("id", device.getId())));
+            } catch (StorageException e) {
+                LOGGER.warn("Update device overspeed error", e);
+            }
         }
-
-        deviceManager.setDeviceState(deviceId, deviceState);
-        return result;
+        return state.getEvent() != null ? Collections.singletonMap(state.getEvent(), position) : null;
     }
 
 }
diff --git a/src/main/java/org/traccar/helper/BitUtil.java b/src/main/java/org/traccar/helper/BitUtil.java
index b6108edff..829ddebc9 100644
--- a/src/main/java/org/traccar/helper/BitUtil.java
+++ b/src/main/java/org/traccar/helper/BitUtil.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,7 +21,7 @@ public final class BitUtil {
     }
 
     public static boolean check(long number, int index) {
-        return (number & (1 << index)) != 0;
+        return (number & (1L << index)) != 0;
     }
 
     public static int between(int number, int from, int to) {
diff --git a/src/main/java/org/traccar/helper/BufferUtil.java b/src/main/java/org/traccar/helper/BufferUtil.java
index 9485c17c6..12c31ba9d 100644
--- a/src/main/java/org/traccar/helper/BufferUtil.java
+++ b/src/main/java/org/traccar/helper/BufferUtil.java
@@ -27,6 +27,24 @@ public final class BufferUtil {
     private BufferUtil() {
     }
 
+    public static int readSignedMagnitudeInt(ByteBuf buffer) {
+        long value = buffer.readUnsignedInt();
+        int result = (int) BitUtil.to(value, 31);
+        return BitUtil.check(value, 31) ? -result : result;
+    }
+
+    public static int indexOf(ByteBuf buffer, int fromIndex, int toIndex, byte value, int count) {
+        int startIndex = fromIndex;
+        for (int i = 0; i < count; i++) {
+            int result = buffer.indexOf(startIndex, toIndex, value);
+            if (result < 0 || i == count - 1) {
+                return result;
+            }
+            startIndex = result + 1;
+        }
+        return -1;
+    }
+
     public static int indexOf(String needle, ByteBuf haystack) {
         return indexOf(needle, haystack, haystack.readerIndex(), haystack.writerIndex());
     }
@@ -41,16 +59,28 @@ public final class BufferUtil {
     }
 
     public static int indexOf(ByteBuf needle, ByteBuf haystack, int startIndex, int endIndex) {
-        ByteBuf wrappedHaystack;
-        if (startIndex == haystack.readerIndex() && endIndex == haystack.writerIndex()) {
-            wrappedHaystack = haystack;
-        } else {
-            wrappedHaystack = Unpooled.wrappedBuffer(haystack);
-            wrappedHaystack.readerIndex(startIndex - haystack.readerIndex());
-            wrappedHaystack.writerIndex(endIndex - haystack.readerIndex());
+        int originalReaderIndex = haystack.readerIndex();
+        int originalWriterIndex = haystack.writerIndex();
+        try {
+            haystack.readerIndex(startIndex);
+            haystack.writerIndex(endIndex);
+            return ByteBufUtil.indexOf(needle, haystack);
+        } finally {
+            haystack.readerIndex(originalReaderIndex);
+            haystack.writerIndex(originalWriterIndex);
+        }
+    }
+
+    public static boolean isPrintable(ByteBuf buf, int length) {
+        boolean printable = true;
+        for (int i = 0; i < length; i++) {
+            byte b = buf.getByte(buf.readerIndex() + i);
+            if (b < 32 && b != '\r' && b != '\n') {
+                printable = false;
+                break;
+            }
         }
-        int result = ByteBufUtil.indexOf(needle, wrappedHaystack);
-        return result < 0 ? result : startIndex + result;
+        return printable;
     }
 
 }
diff --git a/src/main/java/org/traccar/helper/Checksum.java b/src/main/java/org/traccar/helper/Checksum.java
index 8c3d0063a..db5817275 100644
--- a/src/main/java/org/traccar/helper/Checksum.java
+++ b/src/main/java/org/traccar/helper/Checksum.java
@@ -200,4 +200,19 @@ public final class Checksum {
         return (10 - (checksum % 10)) % 10;
     }
 
+    public static int ip(ByteBuffer data) {
+        int sum = 0;
+        while (data.remaining() > 0) {
+            sum += data.get() & 0xff;
+            if ((sum & 0x80000000) > 0) {
+                sum = (sum & 0xffff) + (sum >> 16);
+            }
+        }
+        while ((sum >> 16) > 0) {
+            sum = (sum & 0xffff) + sum >> 16;
+        }
+        sum = (sum == 0xffff) ? sum & 0xffff : (~sum) & 0xffff;
+        return sum;
+    }
+
 }
diff --git a/src/main/java/org/traccar/helper/ClassScanner.java b/src/main/java/org/traccar/helper/ClassScanner.java
index c928f6a12..c201d101f 100644
--- a/src/main/java/org/traccar/helper/ClassScanner.java
+++ b/src/main/java/org/traccar/helper/ClassScanner.java
@@ -46,7 +46,7 @@ public final class ClassScanner {
         URL packageUrl = baseClass.getClassLoader().getResource(packagePath);
 
         if (packageUrl.getProtocol().equals("jar")) {
-            String jarFileName = URLDecoder.decode(packageUrl.getFile(), StandardCharsets.UTF_8.name());
+            String jarFileName = URLDecoder.decode(packageUrl.getFile(), StandardCharsets.UTF_8);
             try (JarFile jf = new JarFile(jarFileName.substring(5, jarFileName.indexOf("!")))) {
                 Enumeration<JarEntry> jarEntries = jf.entries();
                 while (jarEntries.hasMoreElements()) {
diff --git a/src/main/java/org/traccar/helper/Log.java b/src/main/java/org/traccar/helper/Log.java
index 8c67f9ddc..9aaf1cfd3 100644
--- a/src/main/java/org/traccar/helper/Log.java
+++ b/src/main/java/org/traccar/helper/Log.java
@@ -28,6 +28,10 @@ import java.io.StringWriter;
 import java.io.Writer;
 import java.net.URL;
 import java.nio.charset.StandardCharsets;
+import java.nio.file.FileStore;
+import java.nio.file.FileSystems;
+import java.nio.file.Files;
+import java.nio.file.Path;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.logging.ConsoleHandler;
@@ -51,10 +55,12 @@ public final class Log {
         private String suffix;
         private Writer writer;
         private final boolean rotate;
+        private final String template;
 
-        RollingFileHandler(String name, boolean rotate) {
+        RollingFileHandler(String name, boolean rotate, String rotateInterval) {
             this.name = name;
             this.rotate = rotate;
+            this.template = rotateInterval.equalsIgnoreCase("HOUR") ? "yyyyMMddHH" : "yyyyMMdd";
         }
 
         @Override
@@ -63,7 +69,7 @@ public final class Log {
                 try {
                     String suffix = "";
                     if (rotate) {
-                        suffix = new SimpleDateFormat("yyyyMMdd").format(new Date(record.getMillis()));
+                        suffix = new SimpleDateFormat(template).format(new Date(record.getMillis()));
                         if (writer != null && !suffix.equals(this.suffix)) {
                             writer.close();
                             writer = null;
@@ -165,7 +171,7 @@ public final class Log {
 
     public static void setupDefaultLogger() {
         String path = null;
-        URL url =  ClassLoader.getSystemClassLoader().getResource(".");
+        URL url = ClassLoader.getSystemClassLoader().getResource(".");
         if (url != null) {
             File jarPath = new File(url.getPath());
             File logsPath = new File(jarPath, "logs");
@@ -174,7 +180,7 @@ public final class Log {
             }
             path = new File(logsPath, "tracker-server.log").getPath();
         }
-        setupLogger(path == null, path, Level.WARNING.getName(), false, true);
+        setupLogger(path == null, path, Level.WARNING.getName(), false, true, "DAY");
     }
 
     public static void setupLogger(Config config) {
@@ -183,11 +189,13 @@ public final class Log {
                 config.getString(Keys.LOGGER_FILE),
                 config.getString(Keys.LOGGER_LEVEL),
                 config.getBoolean(Keys.LOGGER_FULL_STACK_TRACES),
-                config.getBoolean(Keys.LOGGER_ROTATE));
+                config.getBoolean(Keys.LOGGER_ROTATE),
+                config.getString(Keys.LOGGER_ROTATE_INTERVAL));
     }
 
     private static void setupLogger(
-            boolean console, String file, String levelString, boolean fullStackTraces, boolean rotate) {
+            boolean console, String file, String levelString,
+            boolean fullStackTraces, boolean rotate, String rotateInterval) {
 
         Logger rootLogger = Logger.getLogger("");
         for (Handler handler : rootLogger.getHandlers()) {
@@ -198,7 +206,7 @@ public final class Log {
         if (console) {
             handler = new ConsoleHandler();
         } else {
-            handler = new RollingFileHandler(file, rotate);
+            handler = new RollingFileHandler(file, rotate, rotateInterval);
         }
 
         handler.setFormatter(new LogFormatter(fullStackTraces));
@@ -269,4 +277,18 @@ public final class Log {
         return s.toString();
     }
 
+    public static long[] getStorageSpace() {
+        long usable = 0;
+        long total = 0;
+        for (Path root : FileSystems.getDefault().getRootDirectories()) {
+            try {
+                FileStore store = Files.getFileStore(root);
+                usable += store.getUsableSpace();
+                total += store.getTotalSpace();
+            } catch (IOException ignored) {
+            }
+        }
+        return new long[]{usable, total};
+    }
+
 }
diff --git a/src/main/java/org/traccar/helper/LogAction.java b/src/main/java/org/traccar/helper/LogAction.java
index d16b25483..b255b9206 100644
--- a/src/main/java/org/traccar/helper/LogAction.java
+++ b/src/main/java/org/traccar/helper/LogAction.java
@@ -47,7 +47,7 @@ public final class LogAction {
 
     private static final String PATTERN_OBJECT = "user: %d, action: %s, object: %s, id: %d";
     private static final String PATTERN_LINK = "user: %d, action: %s, owner: %s, id: %d, property: %s, id: %d";
-    private static final String PATTERN_LOGIN = "user: %d, action: %s";
+    private static final String PATTERN_LOGIN = "user: %d, action: %s, from: %s";
     private static final String PATTERN_LOGIN_FAILED = "login failed from: %s";
     private static final String PATTERN_DEVICE_ACCUMULATORS = "user: %d, action: %s, deviceId: %d";
     private static final String PATTERN_REPORT = "user: %d, report: %s, from: %s, to: %s, devices: %s, groups: %s";
@@ -72,12 +72,12 @@ public final class LogAction {
         logLinkAction(ACTION_UNLINK, userId, owner, ownerId, property, propertyId);
     }
 
-    public static void login(long userId) {
-        logLoginAction(ACTION_LOGIN, userId);
+    public static void login(long userId, String remoteAddress) {
+        logLoginAction(ACTION_LOGIN, userId, remoteAddress);
     }
 
-    public static void logout(long userId) {
-        logLoginAction(ACTION_LOGOUT, userId);
+    public static void logout(long userId, String remoteAddress) {
+        logLoginAction(ACTION_LOGOUT, userId, remoteAddress);
     }
 
     public static void failedLogin(String remoteAddress) {
@@ -105,8 +105,11 @@ public final class LogAction {
                 Introspector.decapitalize(property.getSimpleName()), propertyId));
     }
 
-    private static void logLoginAction(String action, long userId) {
-        LOGGER.info(String.format(PATTERN_LOGIN, userId, action));
+    private static void logLoginAction(String action, long userId, String remoteAddress) {
+        if (remoteAddress == null || remoteAddress.isEmpty()) {
+            remoteAddress = "unknown";
+        }
+        LOGGER.info(String.format(PATTERN_LOGIN, userId, action, remoteAddress));
     }
 
     public static void logReport(
diff --git a/src/main/java/org/traccar/helper/NetworkUtil.java b/src/main/java/org/traccar/helper/NetworkUtil.java
new file mode 100644
index 000000000..2fe3487da
--- /dev/null
+++ b/src/main/java/org/traccar/helper/NetworkUtil.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.helper;
+
+import io.netty.channel.Channel;
+import io.netty.channel.socket.DatagramChannel;
+
+public final class NetworkUtil {
+
+    private NetworkUtil() {
+    }
+
+    public static String session(Channel channel) {
+        char transport = channel instanceof DatagramChannel ? 'U' : 'T';
+        return transport + channel.id().asShortText();
+    }
+
+}
diff --git a/src/main/java/org/traccar/helper/ObdDecoder.java b/src/main/java/org/traccar/helper/ObdDecoder.java
index b22065f4e..3cbae334a 100644
--- a/src/main/java/org/traccar/helper/ObdDecoder.java
+++ b/src/main/java/org/traccar/helper/ObdDecoder.java
@@ -51,22 +51,7 @@ public final class ObdDecoder {
         StringBuilder codes = new StringBuilder();
         for (int i = 0; i < value.length() / 4; i++) {
             int numValue = Integer.parseInt(value.substring(i * 4, (i + 1) * 4), 16);
-            codes.append(' ');
-            switch (numValue >> 14) {
-                case 1:
-                    codes.append('C');
-                    break;
-                case 2:
-                    codes.append('B');
-                    break;
-                case 3:
-                    codes.append('U');
-                    break;
-                default:
-                    codes.append('P');
-                    break;
-            }
-            codes.append(String.format("%04X", numValue & 0x3FFF));
+            codes.append(' ').append(decodeCode(numValue));
         }
         if (codes.length() > 0) {
             return createEntry(Position.KEY_DTCS, codes.toString().trim());
@@ -75,6 +60,25 @@ public final class ObdDecoder {
         }
     }
 
+    public static String decodeCode(int value) {
+        char prefix;
+        switch (value >> 14) {
+            case 1:
+                prefix = 'C';
+                break;
+            case 2:
+                prefix = 'B';
+                break;
+            case 3:
+                prefix = 'U';
+                break;
+            default:
+                prefix = 'P';
+                break;
+        }
+        return String.format("%c%04X", prefix, value & 0x3FFF);
+    }
+
     public static Map.Entry<String, Object> decodeData(int pid, long value, boolean convert) {
         switch (pid) {
             case 0x04:
diff --git a/src/main/java/org/traccar/helper/ObjectMapperContextResolver.java b/src/main/java/org/traccar/helper/ObjectMapperContextResolver.java
new file mode 100644
index 000000000..634950b85
--- /dev/null
+++ b/src/main/java/org/traccar/helper/ObjectMapperContextResolver.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.helper;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import jakarta.inject.Inject;
+import jakarta.ws.rs.ext.ContextResolver;
+
+// This does not work as a lambda
+public class ObjectMapperContextResolver implements ContextResolver<ObjectMapper> {
+
+    private final ObjectMapper objectMapper;
+
+    @Inject
+    public ObjectMapperContextResolver(ObjectMapper objectMapper) {
+        this.objectMapper = objectMapper;
+    }
+
+    @Override
+    public ObjectMapper getContext(Class<?> clazz) {
+        return objectMapper;
+    }
+
+}
diff --git a/src/main/java/org/traccar/helper/Parser.java b/src/main/java/org/traccar/helper/Parser.java
index 75106e2ba..c2aea28fa 100644
--- a/src/main/java/org/traccar/helper/Parser.java
+++ b/src/main/java/org/traccar/helper/Parser.java
@@ -48,13 +48,25 @@ public class Parser {
     }
 
     public boolean hasNext(int number) {
-        String value = matcher.group(position);
-        if (value != null && !value.isEmpty()) {
-            return true;
-        } else {
-            position += number;
-            return false;
+        for (int i = position; i < position + number; i++) {
+            String value = matcher.group(i);
+            if (value == null || value.isEmpty()) {
+                position += number;
+                return false;
+            }
+        }
+        return true;
+    }
+
+    public boolean hasNextAny(int number) {
+        for (int i = position; i < position + number; i++) {
+            String value = matcher.group(i);
+            if (value != null && !value.isEmpty()) {
+                return true;
+            }
         }
+        position += number;
+        return false;
     }
 
     public String next() {
@@ -155,6 +167,7 @@ public class Parser {
 
     public enum CoordinateFormat {
         DEG_DEG,
+        DEG_DEG_HEM,
         DEG_HEM,
         DEG_MIN_MIN,
         DEG_MIN_HEM,
@@ -173,6 +186,10 @@ public class Parser {
             case DEG_DEG:
                 coordinate = Double.parseDouble(next() + '.' + next());
                 break;
+            case DEG_DEG_HEM:
+                coordinate = Double.parseDouble(next() + '.' + next());
+                hemisphere = next();
+                break;
             case DEG_HEM:
                 coordinate = nextDouble(0);
                 hemisphere = next();
diff --git a/src/main/java/org/traccar/helper/PatternUtil.java b/src/main/java/org/traccar/helper/PatternUtil.java
index 74813e1d9..a46c7b7b4 100644
--- a/src/main/java/org/traccar/helper/PatternUtil.java
+++ b/src/main/java/org/traccar/helper/PatternUtil.java
@@ -63,7 +63,7 @@ public final class PatternUtil {
 
         for (int i = 0; i < pattern.length(); i++) {
             try {
-                Matcher matcher = Pattern.compile("(" + pattern.substring(0, i) + ").*").matcher(input);
+                Matcher matcher = Pattern.compile("(" + pattern.substring(0, i) + ")[\\s\\S]*").matcher(input);
                 if (matcher.matches()) {
                     result.patternMatch = pattern.substring(0, i);
                     result.patternTail = pattern.substring(i);
diff --git a/src/main/java/org/traccar/helper/StringUtil.java b/src/main/java/org/traccar/helper/StringUtil.java
new file mode 100644
index 000000000..9b4d717f4
--- /dev/null
+++ b/src/main/java/org/traccar/helper/StringUtil.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.helper;
+
+public final class StringUtil {
+
+    private StringUtil() {
+    }
+
+    public static boolean containsHex(String value) {
+        for (char c : value.toCharArray()) {
+            if (c >= 'a' && c <= 'f' || c >= 'A' && c <= 'F') {
+                return true;
+            }
+        }
+        return false;
+    }
+
+}
diff --git a/src/main/java/org/traccar/helper/ServletHelper.java b/src/main/java/org/traccar/helper/WebHelper.java
index b6c587ec3..9533fe84b 100644
--- a/src/main/java/org/traccar/helper/ServletHelper.java
+++ b/src/main/java/org/traccar/helper/WebHelper.java
@@ -15,11 +15,18 @@
  */
 package org.traccar.helper;
 
-import javax.servlet.http.HttpServletRequest;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
 
-public final class ServletHelper {
+import jakarta.servlet.http.HttpServletRequest;
 
-    private ServletHelper() {
+import org.eclipse.jetty.util.URIUtil;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+
+public final class WebHelper {
+
+    private WebHelper() {
     }
 
     public static String retrieveRemoteAddress(HttpServletRequest request) {
@@ -42,4 +49,17 @@ public final class ServletHelper {
         }
     }
 
+    public static String retrieveWebUrl(Config config) {
+        if (config.hasKey(Keys.WEB_URL)) {
+            return config.getString(Keys.WEB_URL).replaceAll("/$", "");
+        } else {
+            String address;
+            try {
+                address = config.getString(Keys.WEB_ADDRESS, InetAddress.getLocalHost().getHostAddress());
+            } catch (UnknownHostException e) {
+                address = "localhost";
+            }
+            return URIUtil.newURI("http", address, config.getInteger(Keys.WEB_PORT), "", "");
+        }
+    }
 }
diff --git a/src/main/java/org/traccar/helper/model/AttributeUtil.java b/src/main/java/org/traccar/helper/model/AttributeUtil.java
new file mode 100644
index 000000000..2630f64f0
--- /dev/null
+++ b/src/main/java/org/traccar/helper/model/AttributeUtil.java
@@ -0,0 +1,188 @@
+/*
+ * Copyright 2022 - 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.helper.model;
+
+import org.traccar.api.security.PermissionsService;
+import org.traccar.config.Config;
+import org.traccar.config.ConfigKey;
+import org.traccar.config.KeyType;
+import org.traccar.config.Keys;
+import org.traccar.model.Device;
+import org.traccar.model.Group;
+import org.traccar.model.Server;
+import org.traccar.session.cache.CacheManager;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+public final class AttributeUtil {
+
+    private AttributeUtil() {
+    }
+
+    public interface Provider {
+        Device getDevice();
+        Group getGroup(long groupId);
+        Server getServer();
+        Config getConfig();
+    }
+
+    public static <T> T lookup(CacheManager cacheManager, ConfigKey<T> key, long deviceId) {
+        return lookup(new CacheProvider(cacheManager, deviceId), key);
+    }
+
+    @SuppressWarnings({ "deprecation", "unchecked" })
+    public static <T> T lookup(Provider provider, ConfigKey<T> key) {
+        Device device = provider.getDevice();
+        Object result = device.getAttributes().get(key.getKey());
+        long groupId = device.getGroupId();
+        while (result == null && groupId > 0) {
+            Group group = provider.getGroup(groupId);
+            if (group != null) {
+                result = group.getAttributes().get(key.getKey());
+                groupId = group.getGroupId();
+            } else {
+                groupId = 0;
+            }
+        }
+        if (result == null && key.hasType(KeyType.SERVER)) {
+            result = provider.getServer().getAttributes().get(key.getKey());
+        }
+        if (result == null && key.hasType(KeyType.CONFIG)) {
+            result = provider.getConfig().getString(key.getKey());
+        }
+
+        if (result != null) {
+            Class<T> valueClass = key.getValueClass();
+            if (valueClass.equals(Boolean.class)) {
+                return (T) (result instanceof String
+                        ? Boolean.parseBoolean((String) result)
+                        : result);
+            } else if (valueClass.equals(Integer.class)) {
+                return (T) (Object) (result instanceof String
+                        ? Integer.parseInt((String) result)
+                        : ((Number) result).intValue());
+            } else if (valueClass.equals(Long.class)) {
+                return (T) (Object) (result instanceof String
+                        ? Long.parseLong((String) result)
+                        : ((Number) result).longValue());
+            } else if (valueClass.equals(Double.class)) {
+                return (T) (Object) (result instanceof String
+                        ? Double.parseDouble((String) result)
+                        : ((Number) result).doubleValue());
+            } else {
+                return (T) result;
+            }
+        }
+        return key.getDefaultValue();
+    }
+
+    public static String getDevicePassword(
+            CacheManager cacheManager, long deviceId, String protocol, String defaultPassword) {
+
+        String password = lookup(cacheManager, Keys.DEVICE_PASSWORD, deviceId);
+        if (password != null) {
+            return password;
+        }
+
+        if (protocol != null) {
+            password = cacheManager.getConfig().getString(Keys.PROTOCOL_DEVICE_PASSWORD.withPrefix(protocol));
+            if (password != null) {
+                return password;
+            }
+        }
+
+        return defaultPassword;
+    }
+
+    public static class CacheProvider implements Provider {
+
+        private final CacheManager cacheManager;
+        private final long deviceId;
+
+        public CacheProvider(CacheManager cacheManager, long deviceId) {
+            this.cacheManager = cacheManager;
+            this.deviceId = deviceId;
+        }
+
+        @Override
+        public Device getDevice() {
+            return cacheManager.getObject(Device.class, deviceId);
+        }
+
+        @Override
+        public Group getGroup(long groupId) {
+            return cacheManager.getObject(Group.class, groupId);
+        }
+
+        @Override
+        public Server getServer() {
+            return cacheManager.getServer();
+        }
+
+        @Override
+        public Config getConfig() {
+            return cacheManager.getConfig();
+        }
+    }
+
+    public static class StorageProvider implements Provider {
+
+        private final Config config;
+        private final Storage storage;
+        private final PermissionsService permissionsService;
+        private final Device device;
+
+        public StorageProvider(Config config, Storage storage, PermissionsService permissionsService, Device device) {
+            this.config = config;
+            this.storage = storage;
+            this.permissionsService = permissionsService;
+            this.device = device;
+        }
+
+        @Override
+        public Device getDevice() {
+            return device;
+        }
+
+        @Override
+        public Group getGroup(long groupId) {
+            try {
+                return storage.getObject(
+                        Group.class, new Request(new Columns.All(), new Condition.Equals("id", groupId)));
+            } catch (StorageException e) {
+                throw new RuntimeException(e);
+            }
+        }
+
+        @Override
+        public Server getServer() {
+            try {
+                return permissionsService.getServer();
+            } catch (StorageException e) {
+                throw new RuntimeException(e);
+            }
+        }
+
+        @Override
+        public Config getConfig() {
+            return config;
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/helper/model/DeviceUtil.java b/src/main/java/org/traccar/helper/model/DeviceUtil.java
new file mode 100644
index 000000000..5d8cb5f25
--- /dev/null
+++ b/src/main/java/org/traccar/helper/model/DeviceUtil.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2022 - 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.helper.model;
+
+import org.traccar.model.Device;
+import org.traccar.model.Group;
+import org.traccar.model.User;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.LinkedList;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+public final class DeviceUtil {
+
+    private DeviceUtil() {
+    }
+
+    public static void resetStatus(Storage storage) throws StorageException {
+        storage.updateObject(new Device(), new Request(new Columns.Include("status")));
+    }
+
+
+    public static Collection<Device> getAccessibleDevices(
+            Storage storage, long userId,
+            Collection<Long> deviceIds, Collection<Long> groupIds) throws StorageException {
+
+        var devices = storage.getObjects(Device.class, new Request(
+                new Columns.All(),
+                new Condition.Permission(User.class, userId, Device.class)));
+        var deviceById = devices.stream()
+                .collect(Collectors.toUnmodifiableMap(Device::getId, x -> x));
+        var devicesByGroup = devices.stream()
+                .filter(x -> x.getGroupId() > 0)
+                .collect(Collectors.groupingBy(Device::getGroupId));
+
+        var groups = storage.getObjects(Group.class, new Request(
+                new Columns.All(),
+                new Condition.Permission(User.class, userId, Group.class)));
+        var groupsByGroup = groups.stream()
+                .filter(x -> x.getGroupId() > 0)
+                .collect(Collectors.groupingBy(Group::getGroupId));
+
+        var results = deviceIds.stream()
+                .map(deviceById::get)
+                .filter(Objects::nonNull)
+                .collect(Collectors.toSet());
+
+        var groupQueue = new LinkedList<>(groupIds);
+        while (!groupQueue.isEmpty()) {
+            long groupId = groupQueue.pop();
+            results.addAll(devicesByGroup.getOrDefault(groupId, Collections.emptyList()));
+            groupQueue.addAll(groupsByGroup.getOrDefault(groupId, Collections.emptyList())
+                    .stream().map(Group::getId).collect(Collectors.toUnmodifiableList()));
+        }
+
+        return results;
+    }
+
+}
diff --git a/src/main/java/org/traccar/helper/model/GeofenceUtil.java b/src/main/java/org/traccar/helper/model/GeofenceUtil.java
new file mode 100644
index 000000000..9f063a8b4
--- /dev/null
+++ b/src/main/java/org/traccar/helper/model/GeofenceUtil.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.helper.model;
+
+import org.traccar.config.Config;
+import org.traccar.model.Geofence;
+import org.traccar.model.Position;
+import org.traccar.session.cache.CacheManager;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public final class GeofenceUtil {
+
+    private GeofenceUtil() {
+    }
+
+    public static List<Long> getCurrentGeofences(Config config, CacheManager cacheManager, Position position) {
+        List<Long> result = new ArrayList<>();
+        for (Geofence geofence : cacheManager.getDeviceObjects(position.getDeviceId(), Geofence.class)) {
+            if (geofence.getGeometry().containsPoint(
+                    config, geofence, position.getLatitude(), position.getLongitude())) {
+                result.add(geofence.getId());
+            }
+        }
+        return result;
+    }
+
+}
diff --git a/src/main/java/org/traccar/helper/model/PositionUtil.java b/src/main/java/org/traccar/helper/model/PositionUtil.java
new file mode 100644
index 000000000..6c380b81a
--- /dev/null
+++ b/src/main/java/org/traccar/helper/model/PositionUtil.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.helper.model;
+
+import org.traccar.model.BaseModel;
+import org.traccar.model.Device;
+import org.traccar.model.Position;
+import org.traccar.model.User;
+import org.traccar.session.cache.CacheManager;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Order;
+import org.traccar.storage.query.Request;
+
+import java.util.Date;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public final class PositionUtil {
+
+    private PositionUtil() {
+    }
+
+    public static boolean isLatest(CacheManager cacheManager, Position position) {
+        Position lastPosition = cacheManager.getPosition(position.getDeviceId());
+        return lastPosition == null || position.getFixTime().compareTo(lastPosition.getFixTime()) >= 0;
+    }
+
+    public static double calculateDistance(Position first, Position last, boolean useOdometer) {
+        double distance;
+        double firstOdometer = first.getDouble(Position.KEY_ODOMETER);
+        double lastOdometer = last.getDouble(Position.KEY_ODOMETER);
+
+        if (useOdometer && firstOdometer != 0.0 && lastOdometer != 0.0) {
+            distance = lastOdometer - firstOdometer;
+        } else {
+            distance = last.getDouble(Position.KEY_TOTAL_DISTANCE) - first.getDouble(Position.KEY_TOTAL_DISTANCE);
+        }
+        return distance;
+    }
+
+    public static List<Position> getPositions(
+            Storage storage, long deviceId, Date from, Date to) throws StorageException {
+        return storage.getObjects(Position.class, new Request(
+                new Columns.All(),
+                new Condition.And(
+                        new Condition.Equals("deviceId", deviceId),
+                        new Condition.Between("fixTime", "from", from, "to", to)),
+                new Order("fixTime")));
+    }
+
+    public static List<Position> getLatestPositions(Storage storage, long userId) throws StorageException {
+        var devices = storage.getObjects(Device.class, new Request(
+                new Columns.Include("id"),
+                new Condition.Permission(User.class, userId, Device.class)));
+        var deviceIds = devices.stream().map(BaseModel::getId).collect(Collectors.toUnmodifiableSet());
+
+        var positions = storage.getObjects(Position.class, new Request(
+                new Columns.All(), new Condition.LatestPositions()));
+        return positions.stream()
+                .filter(position -> deviceIds.contains(position.getDeviceId()))
+                .collect(Collectors.toList());
+    }
+
+}
diff --git a/src/main/java/org/traccar/helper/model/UserUtil.java b/src/main/java/org/traccar/helper/model/UserUtil.java
new file mode 100644
index 000000000..4b1c404f9
--- /dev/null
+++ b/src/main/java/org/traccar/helper/model/UserUtil.java
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.helper.model;
+
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.model.Server;
+import org.traccar.model.User;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Order;
+import org.traccar.storage.query.Request;
+
+import java.util.Date;
+import java.util.TimeZone;
+
+public final class UserUtil {
+
+    private UserUtil() {
+    }
+
+    public static boolean isEmpty(Storage storage) throws StorageException {
+        return storage.getObjects(User.class, new Request(
+                new Columns.Include("id"),
+                new Order("id", false, 1))).isEmpty();
+    }
+
+    public static String getDistanceUnit(Server server, User user) {
+        return lookupStringAttribute(server, user, "distanceUnit", "km");
+    }
+
+    public static String getSpeedUnit(Server server, User user) {
+        return lookupStringAttribute(server, user, "speedUnit", "kn");
+    }
+
+    public static String getVolumeUnit(Server server, User user) {
+        return lookupStringAttribute(server, user, "volumeUnit", "ltr");
+    }
+
+    public static TimeZone getTimezone(Server server, User user) {
+        String timezone = lookupStringAttribute(server, user, "timezone", null);
+        return timezone != null ? TimeZone.getTimeZone(timezone) : TimeZone.getDefault();
+    }
+
+    private static String lookupStringAttribute(Server server, User user, String key, String defaultValue) {
+        String preference;
+        String serverPreference = server.getString(key);
+        String userPreference = user.getString(key);
+        if (server.getForceSettings()) {
+            preference = serverPreference != null ? serverPreference : userPreference;
+        } else {
+            preference = userPreference != null ? userPreference : serverPreference;
+        }
+        return preference != null ? preference : defaultValue;
+    }
+
+    public static void setUserDefaults(User user, Config config) {
+        user.setDeviceLimit(config.getInteger(Keys.USERS_DEFAULT_DEVICE_LIMIT));
+        int expirationDays = config.getInteger(Keys.USERS_DEFAULT_EXPIRATION_DAYS);
+        if (expirationDays > 0) {
+            user.setExpirationTime(new Date(System.currentTimeMillis() + expirationDays * 86400000L));
+        }
+    }
+}
diff --git a/src/main/java/org/traccar/mail/LogMailManager.java b/src/main/java/org/traccar/mail/LogMailManager.java
new file mode 100644
index 000000000..90de3bcce
--- /dev/null
+++ b/src/main/java/org/traccar/mail/LogMailManager.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2022 - 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.mail;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.model.User;
+
+import jakarta.mail.MessagingException;
+import jakarta.mail.internet.MimeBodyPart;
+
+public class LogMailManager implements MailManager {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(LogMailManager.class);
+
+    @Override
+    public boolean getEmailEnabled() {
+        return true;
+    }
+
+    @Override
+    public void sendMessage(
+            User user, boolean system, String subject, String body) throws MessagingException {
+        sendMessage(user, system, subject, body, null);
+    }
+
+    @Override
+    public void sendMessage(
+            User user, boolean system, String subject, String body, MimeBodyPart attachment) throws MessagingException {
+        LOGGER.info(
+                "Email sent\nTo: {}\nSubject: {}\nAttachment: {}\nBody:\n{}",
+                user.getEmail(), subject, attachment != null ? attachment.getFileName() : null, body);
+    }
+
+}
diff --git a/src/main/java/org/traccar/mail/MailManager.java b/src/main/java/org/traccar/mail/MailManager.java
new file mode 100644
index 000000000..d05a07de9
--- /dev/null
+++ b/src/main/java/org/traccar/mail/MailManager.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2022 - 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.mail;
+
+import org.traccar.model.User;
+
+import jakarta.mail.MessagingException;
+import jakarta.mail.internet.MimeBodyPart;
+
+public interface MailManager {
+
+    boolean getEmailEnabled();
+
+    void sendMessage(
+            User user, boolean system, String subject, String body) throws MessagingException;
+
+    void sendMessage(
+            User user, boolean system, String subject, String body, MimeBodyPart attachment) throws MessagingException;
+
+}
diff --git a/src/main/java/org/traccar/mail/SmtpMailManager.java b/src/main/java/org/traccar/mail/SmtpMailManager.java
new file mode 100644
index 000000000..70099d879
--- /dev/null
+++ b/src/main/java/org/traccar/mail/SmtpMailManager.java
@@ -0,0 +1,162 @@
+/*
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2018 Andrey Kunitsyn (andrey@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.mail;
+
+import org.traccar.config.Config;
+import org.traccar.config.ConfigKey;
+import org.traccar.config.Keys;
+import org.traccar.database.StatisticsManager;
+import org.traccar.model.User;
+import org.traccar.notification.PropertiesProvider;
+
+import jakarta.mail.BodyPart;
+import jakarta.mail.Message;
+import jakarta.mail.MessagingException;
+import jakarta.mail.Multipart;
+import jakarta.mail.Session;
+import jakarta.mail.Transport;
+import jakarta.mail.internet.InternetAddress;
+import jakarta.mail.internet.MimeBodyPart;
+import jakarta.mail.internet.MimeMessage;
+import jakarta.mail.internet.MimeMultipart;
+import java.io.UnsupportedEncodingException;
+import java.util.Date;
+import java.util.Properties;
+
+public final class SmtpMailManager implements MailManager {
+
+    private static final String CONTENT_TYPE = "text/html; charset=utf-8";
+
+    private final Config config;
+    private final StatisticsManager statisticsManager;
+
+    public SmtpMailManager(Config config, StatisticsManager statisticsManager) {
+        this.config = config;
+        this.statisticsManager = statisticsManager;
+    }
+
+    private static void copyBooleanProperty(
+            Properties properties, PropertiesProvider provider, ConfigKey<Boolean> key) {
+        Boolean value = provider.getBoolean(key);
+        if (value != null) {
+            properties.put(key.getKey(), String.valueOf(value));
+        }
+    }
+
+    private static void copyStringProperty(
+            Properties properties, PropertiesProvider provider, ConfigKey<String> key) {
+        String value = provider.getString(key);
+        if (value != null) {
+            properties.put(key.getKey(), value);
+        }
+    }
+
+    private static Properties getProperties(PropertiesProvider provider) {
+        String host = provider.getString(Keys.MAIL_SMTP_HOST);
+        if (host != null) {
+            Properties properties = new Properties();
+
+            properties.put(Keys.MAIL_TRANSPORT_PROTOCOL.getKey(), provider.getString(Keys.MAIL_TRANSPORT_PROTOCOL));
+            properties.put(Keys.MAIL_SMTP_HOST.getKey(), host);
+            properties.put(Keys.MAIL_SMTP_PORT.getKey(), String.valueOf(provider.getInteger(Keys.MAIL_SMTP_PORT)));
+
+            copyBooleanProperty(properties, provider, Keys.MAIL_SMTP_STARTTLS_ENABLE);
+            copyBooleanProperty(properties, provider, Keys.MAIL_SMTP_STARTTLS_REQUIRED);
+            copyBooleanProperty(properties, provider, Keys.MAIL_SMTP_SSL_ENABLE);
+            copyStringProperty(properties, provider, Keys.MAIL_SMTP_SSL_TRUST);
+            copyStringProperty(properties, provider, Keys.MAIL_SMTP_SSL_PROTOCOLS);
+            copyStringProperty(properties, provider, Keys.MAIL_SMTP_USERNAME);
+            copyStringProperty(properties, provider, Keys.MAIL_SMTP_PASSWORD);
+            copyStringProperty(properties, provider, Keys.MAIL_SMTP_FROM);
+            copyStringProperty(properties, provider, Keys.MAIL_SMTP_FROM_NAME);
+
+            return properties;
+        }
+        return null;
+    }
+
+    public boolean getEmailEnabled() {
+        return config.hasKey(Keys.MAIL_SMTP_HOST);
+    }
+
+    @Override
+    public void sendMessage(
+            User user, boolean system, String subject, String body) throws MessagingException {
+        sendMessage(user, system, subject, body, null);
+    }
+
+    @Override
+    public void sendMessage(
+            User user, boolean system, String subject, String body, MimeBodyPart attachment) throws MessagingException {
+
+        Properties properties = null;
+        if (!config.getBoolean(Keys.MAIL_SMTP_IGNORE_USER_CONFIG)) {
+            properties = getProperties(new PropertiesProvider(user));
+        }
+        if (properties == null && (system || !config.getBoolean(Keys.MAIL_SMTP_SYSTEM_ONLY))) {
+            properties = getProperties(new PropertiesProvider(config));
+        }
+        if (properties == null) {
+            throw new MessagingException("No SMTP configuration found");
+        }
+
+        Session session = Session.getInstance(properties);
+
+        MimeMessage message = new MimeMessage(session);
+
+        String from = properties.getProperty(Keys.MAIL_SMTP_FROM.getKey());
+        if (from != null) {
+            String fromName = properties.getProperty(Keys.MAIL_SMTP_FROM_NAME.getKey());
+            if (fromName != null) {
+                try {
+                    message.setFrom(new InternetAddress(from, fromName));
+                } catch (UnsupportedEncodingException e) {
+                    throw new MessagingException("Email address issue");
+                }
+            } else {
+                message.setFrom(new InternetAddress(from));
+            }
+        }
+
+        message.addRecipient(Message.RecipientType.TO, new InternetAddress(user.getEmail()));
+        message.setSubject(subject);
+        message.setSentDate(new Date());
+
+        if (attachment != null) {
+            Multipart multipart = new MimeMultipart();
+
+            BodyPart messageBodyPart = new MimeBodyPart();
+            messageBodyPart.setContent(body, CONTENT_TYPE);
+            multipart.addBodyPart(messageBodyPart);
+            multipart.addBodyPart(attachment);
+
+            message.setContent(multipart);
+        } else {
+            message.setContent(body, CONTENT_TYPE);
+        }
+
+        try (Transport transport = session.getTransport()) {
+            statisticsManager.registerMail();
+            transport.connect(
+                    properties.getProperty(Keys.MAIL_SMTP_HOST.getKey()),
+                    properties.getProperty(Keys.MAIL_SMTP_USERNAME.getKey()),
+                    properties.getProperty(Keys.MAIL_SMTP_PASSWORD.getKey()));
+            transport.sendMessage(message, message.getAllRecipients());
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/database/CalendarManager.java b/src/main/java/org/traccar/model/BaseCommand.java
index 44ced1082..f87b8ef65 100644
--- a/src/main/java/org/traccar/database/CalendarManager.java
+++ b/src/main/java/org/traccar/model/BaseCommand.java
@@ -1,6 +1,5 @@
 /*
- * Copyright 2016 - 2017 Anton Tananaev (anton@traccar.org)
- * Copyright 2016 - 2017 Andrey Kunitsyn (andrey@traccar.org)
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,14 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.traccar.database;
+package org.traccar.model;
 
-import org.traccar.model.Calendar;
+public class BaseCommand extends Message {
 
-public class CalendarManager extends SimpleObjectManager<Calendar> {
+    private boolean textChannel;
 
-    public CalendarManager(DataManager dataManager) {
-        super(dataManager, Calendar.class);
+    public boolean getTextChannel() {
+        return textChannel;
+    }
+
+    public void setTextChannel(boolean textChannel) {
+        this.textChannel = textChannel;
     }
 
 }
diff --git a/src/main/java/org/traccar/model/BaseModel.java b/src/main/java/org/traccar/model/BaseModel.java
index 8bdb916e8..acde0f83d 100644
--- a/src/main/java/org/traccar/model/BaseModel.java
+++ b/src/main/java/org/traccar/model/BaseModel.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -20,11 +20,11 @@ public class BaseModel {
 
     private long id;
 
-    public final long getId() {
+    public long getId() {
         return id;
     }
 
-    public final void setId(long id) {
+    public void setId(long id) {
         this.id = id;
     }
 
diff --git a/src/main/java/org/traccar/model/Calendar.java b/src/main/java/org/traccar/model/Calendar.java
index 102c0be52..03f1995ba 100644
--- a/src/main/java/org/traccar/model/Calendar.java
+++ b/src/main/java/org/traccar/model/Calendar.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2016 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -24,6 +24,7 @@ import net.fortuna.ical4j.filter.predicate.PeriodRule;
 import net.fortuna.ical4j.model.DateTime;
 import net.fortuna.ical4j.model.Period;
 import net.fortuna.ical4j.model.component.CalendarComponent;
+import net.fortuna.ical4j.model.component.VEvent;
 import org.traccar.storage.QueryIgnore;
 import org.traccar.storage.StorageName;
 
@@ -32,6 +33,8 @@ import java.io.IOException;
 import java.time.Duration;
 import java.util.Collection;
 import java.util.Date;
+import java.util.List;
+import java.util.stream.Collectors;
 
 @StorageName("tc_calendars")
 public class Calendar extends ExtendedModel {
@@ -49,13 +52,13 @@ public class Calendar extends ExtendedModel {
     private byte[] data;
 
     public byte[] getData() {
-        return data.clone();
+        return data;
     }
 
     public void setData(byte[] data) throws IOException, ParserException {
         CalendarBuilder builder = new CalendarBuilder();
         calendar = builder.build(new ByteArrayInputStream(data));
-        this.data = data.clone();
+        this.data = data;
     }
 
     private net.fortuna.ical4j.model.Calendar calendar;
@@ -66,14 +69,24 @@ public class Calendar extends ExtendedModel {
         return calendar;
     }
 
-    public boolean checkMoment(Date date) {
+    private Collection<VEvent> findEvents(Date date) {
         if (calendar != null) {
-            Period period = new Period(new DateTime(date), Duration.ZERO);
-            Filter<CalendarComponent> filter = new Filter<>(new PeriodRule<>(period));
-            Collection<CalendarComponent> events = filter.filter(calendar.getComponents(CalendarComponent.VEVENT));
-            return events != null && !events.isEmpty();
+            var filter = new Filter<VEvent>(new PeriodRule<>(new Period(new DateTime(date), Duration.ZERO)));
+            return filter.filter(calendar.getComponents(CalendarComponent.VEVENT));
+        } else {
+            return List.of();
         }
-        return false;
+    }
+
+    public Collection<Period> findPeriods(Date date) {
+        var calendarDate = new net.fortuna.ical4j.model.Date(date);
+        return findEvents(date).stream()
+                .flatMap((event) -> event.getConsumedTime(calendarDate, calendarDate).stream())
+                .collect(Collectors.toSet());
+    }
+
+    public boolean checkMoment(Date date) {
+        return !findEvents(date).isEmpty();
     }
 
 }
diff --git a/src/main/java/org/traccar/model/CellTower.java b/src/main/java/org/traccar/model/CellTower.java
index 254487471..355594c64 100644
--- a/src/main/java/org/traccar/model/CellTower.java
+++ b/src/main/java/org/traccar/model/CellTower.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,9 +16,11 @@
 package org.traccar.model;
 
 import com.fasterxml.jackson.annotation.JsonInclude;
-import org.traccar.Context;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 
+import java.util.Objects;
+
 @JsonInclude(JsonInclude.Include.NON_NULL)
 public class CellTower {
 
@@ -37,14 +39,12 @@ public class CellTower {
         return cellTower;
     }
 
-    public static CellTower fromLacCid(int lac, long cid) {
-        return from(
-                Context.getConfig().getInteger(Keys.GEOLOCATION_MCC),
-                Context.getConfig().getInteger(Keys.GEOLOCATION_MCC), lac, cid);
+    public static CellTower fromLacCid(Config config, int lac, long cid) {
+        return from(config.getInteger(Keys.GEOLOCATION_MCC), config.getInteger(Keys.GEOLOCATION_MNC), lac, cid);
     }
 
-    public static CellTower fromCidLac(long cid, int lac) {
-        return fromLacCid(lac, cid);
+    public static CellTower fromCidLac(Config config, long cid, int lac) {
+        return fromLacCid(config, lac, cid);
     }
 
     private String radioType;
@@ -113,4 +113,26 @@ public class CellTower {
         mobileNetworkCode = Integer.parseInt(operatorString.substring(3));
     }
 
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        CellTower cellTower = (CellTower) o;
+        return Objects.equals(radioType, cellTower.radioType)
+                && Objects.equals(cellId, cellTower.cellId)
+                && Objects.equals(locationAreaCode, cellTower.locationAreaCode)
+                && Objects.equals(mobileCountryCode, cellTower.mobileCountryCode)
+                && Objects.equals(mobileNetworkCode, cellTower.mobileNetworkCode)
+                && Objects.equals(signalStrength, cellTower.signalStrength);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(radioType, cellId, locationAreaCode, mobileCountryCode, mobileNetworkCode, signalStrength);
+    }
+
 }
diff --git a/src/main/java/org/traccar/model/Command.java b/src/main/java/org/traccar/model/Command.java
index 03961c7b2..99988dd82 100644
--- a/src/main/java/org/traccar/model/Command.java
+++ b/src/main/java/org/traccar/model/Command.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,7 +22,7 @@ import org.traccar.storage.StorageName;
 
 @StorageName("tc_commands")
 @JsonIgnoreProperties(ignoreUnknown = true)
-public class Command extends Message implements Cloneable {
+public class Command extends BaseCommand {
 
     public static final String TYPE_CUSTOM = "custom";
     public static final String TYPE_IDENTIFICATION = "deviceIdentification";
@@ -58,11 +58,10 @@ public class Command extends Message implements Cloneable {
     public static final String TYPE_GET_MODEM_STATUS = "getModemStatus";
     public static final String TYPE_GET_DEVICE_STATUS = "getDeviceStatus";
     public static final String TYPE_SET_SPEED_LIMIT = "setSpeedLimit";
-
     public static final String TYPE_MODE_POWER_SAVING = "modePowerSaving";
     public static final String TYPE_MODE_DEEP_SLEEP = "modeDeepSleep";
 
-    public static final String TYPE_ALARM_GEOFENCE = "movementAlarm";
+    public static final String TYPE_ALARM_GEOFENCE = "alarmGeofence";
     public static final String TYPE_ALARM_BATTERY = "alarmBattery";
     public static final String TYPE_ALARM_SOS = "alarmSos";
     public static final String TYPE_ALARM_REMOVE = "alarmRemove";
@@ -85,21 +84,6 @@ public class Command extends Message implements Cloneable {
     public static final String KEY_SERVER = "server";
     public static final String KEY_PORT = "port";
 
-    @Override
-    public Command clone() throws CloneNotSupportedException {
-        return (Command) super.clone();
-    }
-
-    private boolean textChannel;
-
-    public boolean getTextChannel() {
-        return textChannel;
-    }
-
-    public void setTextChannel(boolean textChannel) {
-        this.textChannel = textChannel;
-    }
-
     @QueryIgnore
     @Override
     public long getDeviceId() {
diff --git a/src/main/java/org/traccar/model/Device.java b/src/main/java/org/traccar/model/Device.java
index 219f078ed..e07815976 100644
--- a/src/main/java/org/traccar/model/Device.java
+++ b/src/main/java/org/traccar/model/Device.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,15 +15,26 @@
  */
 package org.traccar.model;
 
-import java.util.Date;
-import java.util.List;
-
-import org.traccar.storage.QueryExtended;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import org.traccar.storage.QueryIgnore;
 import org.traccar.storage.StorageName;
 
+import java.util.Date;
+
 @StorageName("tc_devices")
-public class Device extends GroupedModel {
+public class Device extends GroupedModel implements Disableable, Schedulable {
+
+    private long calendarId;
+
+    @Override
+    public long getCalendarId() {
+        return calendarId;
+    }
+
+    @Override
+    public void setCalendarId(long calendarId) {
+        this.calendarId = calendarId;
+    }
 
     private String name;
 
@@ -42,7 +53,7 @@ public class Device extends GroupedModel {
     }
 
     public void setUniqueId(String uniqueId) {
-        this.uniqueId = uniqueId;
+        this.uniqueId = uniqueId.trim();
     }
 
     public static final String STATUS_UNKNOWN = "unknown";
@@ -56,18 +67,17 @@ public class Device extends GroupedModel {
         return status != null ? status : STATUS_OFFLINE;
     }
 
-    @QueryIgnore
     public void setStatus(String status) {
-        this.status = status;
+        this.status = status != null ? status.trim() : null;
     }
 
     private Date lastUpdate;
 
+    @QueryIgnore
     public Date getLastUpdate() {
         return this.lastUpdate;
     }
 
-    @QueryExtended
     public void setLastUpdate(Date lastUpdate) {
         this.lastUpdate = lastUpdate;
     }
@@ -79,23 +89,10 @@ public class Device extends GroupedModel {
         return positionId;
     }
 
-    @QueryIgnore
     public void setPositionId(long positionId) {
         this.positionId = positionId;
     }
 
-    private List<Long> geofenceIds;
-
-    @QueryIgnore
-    public List<Long> getGeofenceIds() {
-        return geofenceIds;
-    }
-
-    @QueryIgnore
-    public void setGeofenceIds(List<Long> geofenceIds) {
-        this.geofenceIds = geofenceIds;
-    }
-
     private String phone;
 
     public String getPhone() {
@@ -103,7 +100,7 @@ public class Device extends GroupedModel {
     }
 
     public void setPhone(String phone) {
-        this.phone = phone;
+        this.phone = phone != null ? phone.trim() : null;
     }
 
     private String model;
@@ -138,12 +135,117 @@ public class Device extends GroupedModel {
 
     private boolean disabled;
 
+    @Override
     public boolean getDisabled() {
         return disabled;
     }
 
+    @Override
     public void setDisabled(boolean disabled) {
         this.disabled = disabled;
     }
 
+    private Date expirationTime;
+
+    @Override
+    public Date getExpirationTime() {
+        return expirationTime;
+    }
+
+    @Override
+    public void setExpirationTime(Date expirationTime) {
+        this.expirationTime = expirationTime;
+    }
+
+    private boolean motionStreak;
+
+    @QueryIgnore
+    @JsonIgnore
+    public boolean getMotionStreak() {
+        return motionStreak;
+    }
+
+    @JsonIgnore
+    public void setMotionStreak(boolean motionStreak) {
+        this.motionStreak = motionStreak;
+    }
+
+    private boolean motionState;
+
+    @QueryIgnore
+    @JsonIgnore
+    public boolean getMotionState() {
+        return motionState;
+    }
+
+    @JsonIgnore
+    public void setMotionState(boolean motionState) {
+        this.motionState = motionState;
+    }
+
+    private Date motionTime;
+
+    @QueryIgnore
+    @JsonIgnore
+    public Date getMotionTime() {
+        return motionTime;
+    }
+
+    @JsonIgnore
+    public void setMotionTime(Date motionTime) {
+        this.motionTime = motionTime;
+    }
+
+    private double motionDistance;
+
+    @QueryIgnore
+    @JsonIgnore
+    public double getMotionDistance() {
+        return motionDistance;
+    }
+
+    @JsonIgnore
+    public void setMotionDistance(double motionDistance) {
+        this.motionDistance = motionDistance;
+    }
+
+    private boolean overspeedState;
+
+    @QueryIgnore
+    @JsonIgnore
+    public boolean getOverspeedState() {
+        return overspeedState;
+    }
+
+    @JsonIgnore
+    public void setOverspeedState(boolean overspeedState) {
+        this.overspeedState = overspeedState;
+    }
+
+    private Date overspeedTime;
+
+    @QueryIgnore
+    @JsonIgnore
+    public Date getOverspeedTime() {
+        return overspeedTime;
+    }
+
+    @JsonIgnore
+    public void setOverspeedTime(Date overspeedTime) {
+        this.overspeedTime = overspeedTime;
+    }
+
+    private long overspeedGeofenceId;
+
+    @QueryIgnore
+    @JsonIgnore
+    public long getOverspeedGeofenceId() {
+        return overspeedGeofenceId;
+    }
+
+    @JsonIgnore
+    public void setOverspeedGeofenceId(long overspeedGeofenceId) {
+        this.overspeedGeofenceId = overspeedGeofenceId;
+    }
+
 }
diff --git a/src/main/java/org/traccar/model/DeviceState.java b/src/main/java/org/traccar/model/DeviceState.java
deleted file mode 100644
index 75d6726ee..000000000
--- a/src/main/java/org/traccar/model/DeviceState.java
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Copyright 2017 Anton Tananaev (anton@traccar.org)
- * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.model;
-
-public class DeviceState {
-
-    private Boolean motionState;
-
-    public void setMotionState(boolean motionState) {
-        this.motionState = motionState;
-    }
-
-    public Boolean getMotionState() {
-        return motionState;
-    }
-
-    private Position motionPosition;
-
-    public void setMotionPosition(Position motionPosition) {
-        this.motionPosition = motionPosition;
-    }
-
-    public Position getMotionPosition() {
-        return motionPosition;
-    }
-
-    private Boolean overspeedState;
-
-    public void setOverspeedState(boolean overspeedState) {
-        this.overspeedState = overspeedState;
-    }
-
-    public Boolean getOverspeedState() {
-        return overspeedState;
-    }
-
-    private Position overspeedPosition;
-
-    public void setOverspeedPosition(Position overspeedPosition) {
-        this.overspeedPosition = overspeedPosition;
-    }
-
-    public Position getOverspeedPosition() {
-        return overspeedPosition;
-    }
-
-    private long overspeedGeofenceId;
-
-    public void setOverspeedGeofenceId(long overspeedGeofenceId) {
-        this.overspeedGeofenceId = overspeedGeofenceId;
-    }
-
-    public long getOverspeedGeofenceId() {
-        return overspeedGeofenceId;
-    }
-
-}
diff --git a/src/main/java/org/traccar/model/Disableable.java b/src/main/java/org/traccar/model/Disableable.java
new file mode 100644
index 000000000..1145d6279
--- /dev/null
+++ b/src/main/java/org/traccar/model/Disableable.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.model;
+
+import java.util.Date;
+
+public interface Disableable {
+
+    boolean getDisabled();
+
+    void setDisabled(boolean disabled);
+
+    Date getExpirationTime();
+
+    void setExpirationTime(Date expirationTime);
+
+    default void checkDisabled() throws SecurityException {
+        if (getDisabled()) {
+            throw new SecurityException(getClass().getSimpleName() + " is disabled");
+        }
+        if (getExpirationTime() != null && System.currentTimeMillis() > getExpirationTime().getTime()) {
+            throw new SecurityException(getClass().getSimpleName() + " has expired");
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/model/Driver.java b/src/main/java/org/traccar/model/Driver.java
index b9e023088..ca5714e51 100644
--- a/src/main/java/org/traccar/model/Driver.java
+++ b/src/main/java/org/traccar/model/Driver.java
@@ -38,7 +38,7 @@ public class Driver extends ExtendedModel {
     }
 
     public void setUniqueId(String uniqueId) {
-        this.uniqueId = uniqueId;
+        this.uniqueId = uniqueId.trim();
     }
 
 }
diff --git a/src/main/java/org/traccar/model/Event.java b/src/main/java/org/traccar/model/Event.java
index 6e3953fda..0e851d748 100644
--- a/src/main/java/org/traccar/model/Event.java
+++ b/src/main/java/org/traccar/model/Event.java
@@ -52,6 +52,7 @@ public class Event extends Message {
 
     public static final String TYPE_DEVICE_OVERSPEED = "deviceOverspeed";
     public static final String TYPE_DEVICE_FUEL_DROP = "deviceFuelDrop";
+    public static final String TYPE_DEVICE_FUEL_INCREASE = "deviceFuelIncrease";
 
     public static final String TYPE_GEOFENCE_ENTER = "geofenceEnter";
     public static final String TYPE_GEOFENCE_EXIT = "geofenceExit";
@@ -62,10 +63,9 @@ public class Event extends Message {
     public static final String TYPE_IGNITION_OFF = "ignitionOff";
 
     public static final String TYPE_MAINTENANCE = "maintenance";
-
     public static final String TYPE_TEXT_MESSAGE = "textMessage";
-
     public static final String TYPE_DRIVER_CHANGED = "driverChanged";
+    public static final String TYPE_MEDIA = "media";
 
     private Date eventTime;
 
diff --git a/src/main/java/org/traccar/model/ExtendedModel.java b/src/main/java/org/traccar/model/ExtendedModel.java
index 8353d0e66..d5cd094da 100644
--- a/src/main/java/org/traccar/model/ExtendedModel.java
+++ b/src/main/java/org/traccar/model/ExtendedModel.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,17 +17,22 @@ package org.traccar.model;
 
 import java.util.LinkedHashMap;
 import java.util.Map;
+import java.util.Objects;
 
 public class ExtendedModel extends BaseModel {
 
     private Map<String, Object> attributes = new LinkedHashMap<>();
 
+    public boolean hasAttribute(String key) {
+        return attributes.containsKey(key);
+    }
+
     public Map<String, Object> getAttributes() {
         return attributes;
     }
 
     public void setAttributes(Map<String, Object> attributes) {
-        this.attributes = attributes;
+        this.attributes = Objects.requireNonNullElseGet(attributes, LinkedHashMap::new);
     }
 
     public void set(String key, Boolean value) {
@@ -84,17 +89,27 @@ public class ExtendedModel extends BaseModel {
         }
     }
 
-    public String getString(String key) {
+    public String getString(String key, String defaultValue) {
         if (attributes.containsKey(key)) {
-            return (String) attributes.get(key);
+            Object value = attributes.get(key);
+            return value != null ? value.toString() : null;
         } else {
-            return null;
+            return defaultValue;
         }
     }
 
+    public String getString(String key) {
+        return getString(key, null);
+    }
+
     public double getDouble(String key) {
         if (attributes.containsKey(key)) {
-            return ((Number) attributes.get(key)).doubleValue();
+            Object value = attributes.get(key);
+            if (value instanceof Number) {
+                return ((Number) attributes.get(key)).doubleValue();
+            } else {
+                return Double.parseDouble(value.toString());
+            }
         } else {
             return 0.0;
         }
@@ -102,7 +117,12 @@ public class ExtendedModel extends BaseModel {
 
     public boolean getBoolean(String key) {
         if (attributes.containsKey(key)) {
-            return (Boolean) attributes.get(key);
+            Object value = attributes.get(key);
+            if (value instanceof Boolean) {
+                return (Boolean) attributes.get(key);
+            } else {
+                return Boolean.parseBoolean(value.toString());
+            }
         } else {
             return false;
         }
@@ -110,7 +130,12 @@ public class ExtendedModel extends BaseModel {
 
     public int getInteger(String key) {
         if (attributes.containsKey(key)) {
-            return ((Number) attributes.get(key)).intValue();
+            Object value = attributes.get(key);
+            if (value instanceof Number) {
+                return ((Number) attributes.get(key)).intValue();
+            } else {
+                return Integer.parseInt(value.toString());
+            }
         } else {
             return 0;
         }
@@ -118,7 +143,12 @@ public class ExtendedModel extends BaseModel {
 
     public long getLong(String key) {
         if (attributes.containsKey(key)) {
-            return ((Number) attributes.get(key)).longValue();
+            Object value = attributes.get(key);
+            if (value instanceof Number) {
+                return ((Number) attributes.get(key)).longValue();
+            } else {
+                return Long.parseLong(value.toString());
+            }
         } else {
             return 0;
         }
diff --git a/src/main/java/org/traccar/model/Geofence.java b/src/main/java/org/traccar/model/Geofence.java
index 5b857580d..ca6293651 100644
--- a/src/main/java/org/traccar/model/Geofence.java
+++ b/src/main/java/org/traccar/model/Geofence.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,25 +15,30 @@
  */
 package org.traccar.model;
 
-import java.text.ParseException;
-
-import org.traccar.Context;
-import org.traccar.config.Keys;
-import org.traccar.storage.QueryIgnore;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import org.traccar.geofence.GeofenceCircle;
 import org.traccar.geofence.GeofenceGeometry;
 import org.traccar.geofence.GeofencePolygon;
 import org.traccar.geofence.GeofencePolyline;
-
-import com.fasterxml.jackson.annotation.JsonIgnore;
+import org.traccar.storage.QueryIgnore;
 import org.traccar.storage.StorageName;
 
+import java.text.ParseException;
+
 @StorageName("tc_geofences")
-public class Geofence extends ScheduledModel {
+public class Geofence extends ExtendedModel implements Schedulable {
 
-    public static final String TYPE_GEOFENCE_CILCLE = "geofenceCircle";
-    public static final String TYPE_GEOFENCE_POLYGON = "geofencePolygon";
-    public static final String TYPE_GEOFENCE_POLYLINE = "geofencePolyline";
+    private long calendarId;
+
+    @Override
+    public long getCalendarId() {
+        return calendarId;
+    }
+
+    @Override
+    public void setCalendarId(long calendarId) {
+        this.calendarId = calendarId;
+    }
 
     private String name;
 
@@ -68,9 +73,7 @@ public class Geofence extends ScheduledModel {
         } else if (area.startsWith("POLYGON")) {
             geometry = new GeofencePolygon(area);
         } else if (area.startsWith("LINESTRING")) {
-            final double distance = getDouble("polylineDistance");
-            geometry = new GeofencePolyline(area, distance > 0 ? distance
-                    : Context.getConfig().getDouble(Keys.GEOFENCE_POLYLINE_DISTANCE));
+            geometry = new GeofencePolyline(area);
         } else {
             throw new ParseException("Unknown geometry type", 0);
         }
@@ -92,4 +95,5 @@ public class Geofence extends ScheduledModel {
         area = geometry.toWkt();
         this.geometry = geometry;
     }
+
 }
diff --git a/src/main/java/org/traccar/model/Network.java b/src/main/java/org/traccar/model/Network.java
index 4d67fc5d8..b31c53c38 100644
--- a/src/main/java/org/traccar/model/Network.java
+++ b/src/main/java/org/traccar/model/Network.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,6 +19,7 @@ import com.fasterxml.jackson.annotation.JsonInclude;
 
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.Objects;
 
 @JsonInclude(JsonInclude.Include.NON_NULL)
 public class Network {
@@ -118,4 +119,27 @@ public class Network {
         wifiAccessPoints.add(wifiAccessPoint);
     }
 
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        Network network = (Network) o;
+        return Objects.equals(homeMobileCountryCode, network.homeMobileCountryCode)
+                && Objects.equals(homeMobileNetworkCode, network.homeMobileNetworkCode)
+                && Objects.equals(radioType, network.radioType)
+                && Objects.equals(carrier, network.carrier)
+                && Objects.equals(cellTowers, network.cellTowers)
+                && Objects.equals(wifiAccessPoints, network.wifiAccessPoints);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(
+                homeMobileCountryCode, homeMobileNetworkCode, radioType, carrier, cellTowers, wifiAccessPoints);
+    }
+
 }
diff --git a/src/main/java/org/traccar/model/Notification.java b/src/main/java/org/traccar/model/Notification.java
index 95e446132..6dcd9c9de 100644
--- a/src/main/java/org/traccar/model/Notification.java
+++ b/src/main/java/org/traccar/model/Notification.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,7 +24,19 @@ import com.fasterxml.jackson.annotation.JsonIgnore;
 import org.traccar.storage.StorageName;
 
 @StorageName("tc_notifications")
-public class Notification extends ScheduledModel {
+public class Notification extends ExtendedModel implements Schedulable {
+
+    private long calendarId;
+
+    @Override
+    public long getCalendarId() {
+        return calendarId;
+    }
+
+    @Override
+    public void setCalendarId(long calendarId) {
+        this.calendarId = calendarId;
+    }
 
     private boolean always;
 
@@ -46,6 +58,16 @@ public class Notification extends ScheduledModel {
         this.type = type;
     }
 
+    private long commandId;
+
+    public long getCommandId() {
+        return commandId;
+    }
+
+    public void setCommandId(long commandId) {
+        this.commandId = commandId;
+    }
+
     private String notificators;
 
     public String getNotificators() {
diff --git a/src/main/java/org/traccar/model/Permission.java b/src/main/java/org/traccar/model/Permission.java
index ad0176b39..0b2f0584f 100644
--- a/src/main/java/org/traccar/model/Permission.java
+++ b/src/main/java/org/traccar/model/Permission.java
@@ -31,12 +31,12 @@ import org.traccar.storage.QueryIgnore;
 
 public class Permission {
 
-    private static final Map<String, Class<?>> CLASSES = new TreeMap<>(String.CASE_INSENSITIVE_ORDER);
+    private static final Map<String, Class<? extends BaseModel>> CLASSES = new TreeMap<>(String.CASE_INSENSITIVE_ORDER);
 
     static {
         try {
             for (Class<?> clazz : ClassScanner.findSubclasses(BaseModel.class)) {
-                CLASSES.put(clazz.getSimpleName(), clazz);
+                CLASSES.put(clazz.getSimpleName(), (Class<? extends BaseModel>) clazz);
             }
         } catch (IOException | ReflectiveOperationException | URISyntaxException e) {
             throw new RuntimeException(e);
@@ -45,23 +45,25 @@ public class Permission {
 
     private final LinkedHashMap<String, Long> data;
 
-    private final Class<?> ownerClass;
+    private final Class<? extends BaseModel> ownerClass;
     private final long ownerId;
-    private final Class<?> propertyClass;
+    private final Class<? extends BaseModel> propertyClass;
     private final long propertyId;
 
     public Permission(LinkedHashMap<String, Long> data) {
         this.data = data;
         var iterator = data.entrySet().iterator();
         var owner = iterator.next();
-        ownerClass = CLASSES.get(owner.getKey().substring(0, owner.getKey().length() - 2));
+        ownerClass = getKeyClass(owner.getKey());
         ownerId = owner.getValue();
         var property = iterator.next();
-        propertyClass = CLASSES.get(property.getKey().substring(0, property.getKey().length() - 2));
+        propertyClass = getKeyClass(property.getKey());
         propertyId = property.getValue();
     }
 
-    public Permission(Class<?> ownerClass, long ownerId, Class<?> propertyClass, long propertyId) {
+    public Permission(
+            Class<? extends BaseModel> ownerClass, long ownerId,
+            Class<? extends BaseModel> propertyClass, long propertyId) {
         this.ownerClass = ownerClass;
         this.ownerId = ownerId;
         this.propertyClass = propertyClass;
@@ -71,7 +73,11 @@ public class Permission {
         data.put(getKey(propertyClass), propertyId);
     }
 
-    private static String getKey(Class<?> clazz) {
+    public static Class<? extends BaseModel> getKeyClass(String key) {
+        return CLASSES.get(key.substring(0, key.length() - 2));
+    }
+
+    public static String getKey(Class<?> clazz) {
         return Introspector.decapitalize(clazz.getSimpleName()) + "Id";
     }
 
@@ -105,7 +111,7 @@ public class Permission {
 
     @QueryIgnore
     @JsonIgnore
-    public Class<?> getOwnerClass() {
+    public Class<? extends BaseModel> getOwnerClass() {
         return ownerClass;
     }
 
@@ -117,7 +123,7 @@ public class Permission {
 
     @QueryIgnore
     @JsonIgnore
-    public Class<?> getPropertyClass() {
+    public Class<? extends BaseModel> getPropertyClass() {
         return propertyClass;
     }
 
diff --git a/src/main/java/org/traccar/model/Position.java b/src/main/java/org/traccar/model/Position.java
index 348370e2c..6685cab95 100644
--- a/src/main/java/org/traccar/model/Position.java
+++ b/src/main/java/org/traccar/model/Position.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,6 +16,8 @@
 package org.traccar.model;
 
 import java.util.Date;
+import java.util.List;
+import java.util.stream.Collectors;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import org.traccar.storage.QueryIgnore;
@@ -40,7 +42,7 @@ public class Position extends Message {
     public static final String KEY_ODOMETER = "odometer"; // meters
     public static final String KEY_ODOMETER_SERVICE = "serviceOdometer"; // meters
     public static final String KEY_ODOMETER_TRIP = "tripOdometer"; // meters
-    public static final String KEY_HOURS = "hours";
+    public static final String KEY_HOURS = "hours"; // milliseconds
     public static final String KEY_STEPS = "steps";
     public static final String KEY_HEART_RATE = "heartRate";
     public static final String KEY_INPUT = "input";
@@ -83,12 +85,14 @@ public class Position extends Message {
     public static final String KEY_OPERATOR = "operator";
     public static final String KEY_COMMAND = "command";
     public static final String KEY_BLOCKED = "blocked";
+    public static final String KEY_LOCK = "lock";
     public static final String KEY_DOOR = "door";
     public static final String KEY_AXLE_WEIGHT = "axleWeight";
     public static final String KEY_G_SENSOR = "gSensor";
     public static final String KEY_ICCID = "iccid";
     public static final String KEY_PHONE = "phone";
     public static final String KEY_SPEED_LIMIT = "speedLimit";
+    public static final String KEY_DRIVING_TIME = "drivingTime";
 
     public static final String KEY_DTCS = "dtcs";
     public static final String KEY_OBD_SPEED = "obdSpeed"; // knots
@@ -97,6 +101,7 @@ public class Position extends Message {
     public static final String KEY_RESULT = "result";
 
     public static final String KEY_DRIVER_UNIQUE_ID = "driverUniqueId";
+    public static final String KEY_CARD = "card";
 
     // Start with 1 not 0
     public static final String PREFIX_TEMP = "temp";
@@ -150,7 +155,6 @@ public class Position extends Message {
 
     public Position(String protocol) {
         this.protocol = protocol;
-        this.serverTime = new Date();
     }
 
     private String protocol;
@@ -228,6 +232,9 @@ public class Position extends Message {
     }
 
     public void setLatitude(double latitude) {
+        if (latitude < -90 || latitude > 90) {
+            throw new IllegalArgumentException("Latitude out of range");
+        }
         this.latitude = latitude;
     }
 
@@ -238,6 +245,9 @@ public class Position extends Message {
     }
 
     public void setLongitude(double longitude) {
+        if (longitude < -180 || longitude > 180) {
+            throw new IllegalArgumentException("Longitude out of range");
+        }
         this.longitude = longitude;
     }
 
@@ -301,6 +311,20 @@ public class Position extends Message {
         this.network = network;
     }
 
+    private List<Long> geofenceIds;
+
+    public List<Long> getGeofenceIds() {
+        return geofenceIds;
+    }
+
+    public void setGeofenceIds(List<? extends Number> geofenceIds) {
+        if (geofenceIds != null) {
+            this.geofenceIds = geofenceIds.stream().map(Number::longValue).collect(Collectors.toList());
+        } else {
+            this.geofenceIds = null;
+        }
+    }
+
     @JsonIgnore
     @QueryIgnore
     @Override
diff --git a/src/main/java/org/traccar/model/QueuedCommand.java b/src/main/java/org/traccar/model/QueuedCommand.java
new file mode 100644
index 000000000..96a1eca4b
--- /dev/null
+++ b/src/main/java/org/traccar/model/QueuedCommand.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.model;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import org.traccar.storage.StorageName;
+
+import java.util.HashMap;
+
+@StorageName("tc_commands_queue")
+@JsonIgnoreProperties(ignoreUnknown = true)
+public class QueuedCommand extends BaseCommand {
+
+    public static QueuedCommand fromCommand(Command command) {
+        QueuedCommand queuedCommand = new QueuedCommand();
+        queuedCommand.setDeviceId(command.getDeviceId());
+        queuedCommand.setType(command.getType());
+        queuedCommand.setTextChannel(command.getTextChannel());
+        queuedCommand.setAttributes(new HashMap<>(command.getAttributes()));
+        return queuedCommand;
+    }
+
+    public Command toCommand() {
+        Command command = new Command();
+        command.setDeviceId(getDeviceId());
+        command.setType(getType());
+        command.setDescription("");
+        command.setTextChannel(getTextChannel());
+        command.setAttributes(new HashMap<>(getAttributes()));
+        return command;
+    }
+
+}
diff --git a/src/main/java/org/traccar/model/Report.java b/src/main/java/org/traccar/model/Report.java
new file mode 100644
index 000000000..2ee7ae288
--- /dev/null
+++ b/src/main/java/org/traccar/model/Report.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2022 - 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.model;
+
+import org.traccar.storage.StorageName;
+
+@StorageName("tc_reports")
+public class Report extends ExtendedModel implements Schedulable {
+
+    private long calendarId;
+
+    @Override
+    public long getCalendarId() {
+        return calendarId;
+    }
+
+    @Override
+    public void setCalendarId(long calendarId) {
+        this.calendarId = calendarId;
+    }
+
+    private String type;
+
+    public String getType() {
+        return type;
+    }
+
+    public void setType(String type) {
+        this.type = type;
+    }
+
+    private String description;
+
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+}
diff --git a/src/main/java/org/traccar/model/ScheduledModel.java b/src/main/java/org/traccar/model/Schedulable.java
index 9e6a4b9a6..331e77583 100644
--- a/src/main/java/org/traccar/model/ScheduledModel.java
+++ b/src/main/java/org/traccar/model/Schedulable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2018 - 2023 Anton Tananaev (anton@traccar.org)
  * Copyright 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,15 +16,7 @@
  */
 package org.traccar.model;
 
-public class ScheduledModel extends ExtendedModel {
-
-    private long calendarId;
-
-    public long getCalendarId() {
-        return calendarId;
-    }
-
-    public void setCalendarId(long calendarId) {
-        this.calendarId = calendarId;
-    }
+public interface Schedulable {
+    long getCalendarId();
+    void setCalendarId(long calendarId);
 }
diff --git a/src/main/java/org/traccar/model/Server.java b/src/main/java/org/traccar/model/Server.java
index b48e84939..6442186b6 100644
--- a/src/main/java/org/traccar/model/Server.java
+++ b/src/main/java/org/traccar/model/Server.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,13 +16,13 @@
 package org.traccar.model;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
-import org.traccar.Context;
+
 import org.traccar.storage.QueryIgnore;
 import org.traccar.storage.StorageName;
 
 @StorageName("tc_servers")
 @JsonIgnoreProperties(ignoreUnknown = true)
-public class Server extends ExtendedModel {
+public class Server extends ExtendedModel implements UserRestrictions {
 
     private boolean registration;
 
@@ -36,6 +36,7 @@ public class Server extends ExtendedModel {
 
     private boolean readonly;
 
+    @Override
     public boolean getReadonly() {
         return readonly;
     }
@@ -46,6 +47,7 @@ public class Server extends ExtendedModel {
 
     private boolean deviceReadonly;
 
+    @Override
     public boolean getDeviceReadonly() {
         return deviceReadonly;
     }
@@ -84,6 +86,16 @@ public class Server extends ExtendedModel {
         this.mapUrl = mapUrl;
     }
 
+    private String overlayUrl;
+
+    public String getOverlayUrl() {
+        return overlayUrl;
+    }
+
+    public void setOverlayUrl(String overlayUrl) {
+        this.overlayUrl = overlayUrl;
+    }
+
     private double latitude;
 
     public double getLatitude() {
@@ -146,6 +158,7 @@ public class Server extends ExtendedModel {
 
     private boolean limitCommands;
 
+    @Override
     public boolean getLimitCommands() {
         return limitCommands;
     }
@@ -156,6 +169,7 @@ public class Server extends ExtendedModel {
 
     private boolean disableReports;
 
+    @Override
     public boolean getDisableReports() {
         return disableReports;
     }
@@ -164,6 +178,17 @@ public class Server extends ExtendedModel {
         this.disableReports = disableReports;
     }
 
+    private boolean fixedEmail;
+
+    @Override
+    public boolean getFixedEmail() {
+        return fixedEmail;
+    }
+
+    public void setFixedEmail(boolean fixedEmail) {
+        this.fixedEmail = fixedEmail;
+    }
+
     private String poiLayer;
 
     public String getPoiLayer() {
@@ -189,9 +214,87 @@ public class Server extends ExtendedModel {
         return getClass().getPackage().getImplementationVersion();
     }
 
+    private boolean emailEnabled;
+
+    @QueryIgnore
+    public void setEmailEnabled(boolean emailEnabled) {
+        this.emailEnabled = emailEnabled;
+    }
+
     @QueryIgnore
     public Boolean getEmailEnabled() {
-        return Context.getMailManager().getEmailEnabled();
+        return emailEnabled;
+    }
+
+    private boolean geocoderEnabled;
+
+    private boolean textEnabled;
+
+    @QueryIgnore
+    public void setTextEnabled(boolean textEnabled) {
+        this.textEnabled = textEnabled;
+    }
+
+    @QueryIgnore
+    public Boolean getTextEnabled() {
+        return textEnabled;
+    }
+
+    @QueryIgnore
+    public void setGeocoderEnabled(boolean geocoderEnabled) {
+        this.geocoderEnabled = geocoderEnabled;
+    }
+
+    @QueryIgnore
+    public boolean getGeocoderEnabled() {
+        return geocoderEnabled;
+    }
+
+    private long[] storageSpace;
+
+    @QueryIgnore
+    public long[] getStorageSpace() {
+        return storageSpace;
+    }
+
+    @QueryIgnore
+    public void setStorageSpace(long[] storageSpace) {
+        this.storageSpace = storageSpace;
+    }
+
+    private boolean newServer;
+
+    @QueryIgnore
+    public boolean getNewServer() {
+        return newServer;
+    }
+
+    @QueryIgnore
+    public void setNewServer(boolean newServer) {
+        this.newServer = newServer;
+    }
+
+    private boolean openIdEnabled;
+
+    @QueryIgnore
+    public boolean getOpenIdEnabled() {
+        return openIdEnabled;
+    }
+
+    @QueryIgnore
+    public void setOpenIdEnabled(boolean openIdEnabled) {
+        this.openIdEnabled = openIdEnabled;
     }
 
+    private boolean openIdForce;
+
+    @QueryIgnore
+    public boolean getOpenIdForce() {
+        return openIdForce;
+    }
+
+    @QueryIgnore
+    public void setOpenIdForce(boolean openIdForce) {
+        this.openIdForce = openIdForce;
+    }
 }
diff --git a/src/main/java/org/traccar/model/User.java b/src/main/java/org/traccar/model/User.java
index 464d0cbfe..0540f16d7 100644
--- a/src/main/java/org/traccar/model/User.java
+++ b/src/main/java/org/traccar/model/User.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2013 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,7 +17,6 @@ package org.traccar.model;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 
-import org.traccar.storage.QueryExtended;
 import org.traccar.storage.QueryIgnore;
 import org.traccar.helper.Hashing;
 import org.traccar.storage.StorageName;
@@ -25,7 +24,7 @@ import org.traccar.storage.StorageName;
 import java.util.Date;
 
 @StorageName("tc_users")
-public class User extends ExtendedModel {
+public class User extends ExtendedModel implements UserRestrictions, Disableable {
 
     private String name;
 
@@ -64,11 +63,12 @@ public class User extends ExtendedModel {
     }
 
     public void setPhone(String phone) {
-        this.phone = phone;
+        this.phone = phone != null ? phone.trim() : null;
     }
 
     private boolean readonly;
 
+    @Override
     public boolean getReadonly() {
         return readonly;
     }
@@ -79,6 +79,12 @@ public class User extends ExtendedModel {
 
     private boolean administrator;
 
+    @QueryIgnore
+    @JsonIgnore
+    public boolean getManager() {
+        return userLimit != 0;
+    }
+
     public boolean getAdministrator() {
         return administrator;
     }
@@ -149,20 +155,24 @@ public class User extends ExtendedModel {
 
     private boolean disabled;
 
+    @Override
     public boolean getDisabled() {
         return disabled;
     }
 
+    @Override
     public void setDisabled(boolean disabled) {
         this.disabled = disabled;
     }
 
     private Date expirationTime;
 
+    @Override
     public Date getExpirationTime() {
         return expirationTime;
     }
 
+    @Override
     public void setExpirationTime(Date expirationTime) {
         this.expirationTime = expirationTime;
     }
@@ -189,6 +199,7 @@ public class User extends ExtendedModel {
 
     private boolean deviceReadonly;
 
+    @Override
     public boolean getDeviceReadonly() {
         return deviceReadonly;
     }
@@ -197,25 +208,9 @@ public class User extends ExtendedModel {
         this.deviceReadonly = deviceReadonly;
     }
 
-    private String token;
-
-    public String getToken() {
-        return token;
-    }
-
-    public void setToken(String token) {
-        if (token != null && !token.isEmpty()) {
-            if (!token.matches("^[a-zA-Z0-9-]{16,}$")) {
-                throw new IllegalArgumentException("Illegal token");
-            }
-            this.token = token;
-        } else {
-            this.token = null;
-        }
-    }
-
     private boolean limitCommands;
 
+    @Override
     public boolean getLimitCommands() {
         return limitCommands;
     }
@@ -224,10 +219,9 @@ public class User extends ExtendedModel {
         this.limitCommands = limitCommands;
     }
 
-    private String poiLayer;
-
     private boolean disableReports;
 
+    @Override
     public boolean getDisableReports() {
         return disableReports;
     }
@@ -236,6 +230,19 @@ public class User extends ExtendedModel {
         this.disableReports = disableReports;
     }
 
+    private boolean fixedEmail;
+
+    @Override
+    public boolean getFixedEmail() {
+        return fixedEmail;
+    }
+
+    public void setFixedEmail(boolean fixedEmail) {
+        this.fixedEmail = fixedEmail;
+    }
+
+    private String poiLayer;
+
     public String getPoiLayer() {
         return poiLayer;
     }
@@ -261,12 +268,12 @@ public class User extends ExtendedModel {
     private String hashedPassword;
 
     @JsonIgnore
-    @QueryExtended
+    @QueryIgnore
     public String getHashedPassword() {
         return hashedPassword;
     }
 
-    @QueryExtended
+    @QueryIgnore
     public void setHashedPassword(String hashedPassword) {
         this.hashedPassword = hashedPassword;
     }
@@ -274,12 +281,12 @@ public class User extends ExtendedModel {
     private String salt;
 
     @JsonIgnore
-    @QueryExtended
+    @QueryIgnore
     public String getSalt() {
         return salt;
     }
 
-    @QueryExtended
+    @QueryIgnore
     public void setSalt(String salt) {
         this.salt = salt;
     }
diff --git a/src/main/java/org/traccar/model/UserRestrictions.java b/src/main/java/org/traccar/model/UserRestrictions.java
new file mode 100644
index 000000000..1fcc5682e
--- /dev/null
+++ b/src/main/java/org/traccar/model/UserRestrictions.java
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.model;
+
+public interface UserRestrictions {
+    boolean getReadonly();
+    boolean getDeviceReadonly();
+    boolean getLimitCommands();
+    boolean getDisableReports();
+    boolean getFixedEmail();
+}
diff --git a/src/main/java/org/traccar/model/WifiAccessPoint.java b/src/main/java/org/traccar/model/WifiAccessPoint.java
index 87a77f3c0..e28c1b935 100644
--- a/src/main/java/org/traccar/model/WifiAccessPoint.java
+++ b/src/main/java/org/traccar/model/WifiAccessPoint.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,6 +17,8 @@ package org.traccar.model;
 
 import com.fasterxml.jackson.annotation.JsonInclude;
 
+import java.util.Objects;
+
 @JsonInclude(JsonInclude.Include.NON_NULL)
 public class WifiAccessPoint {
 
@@ -63,4 +65,23 @@ public class WifiAccessPoint {
         this.channel = channel;
     }
 
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        WifiAccessPoint that = (WifiAccessPoint) o;
+        return Objects.equals(macAddress, that.macAddress)
+                && Objects.equals(signalStrength, that.signalStrength)
+                && Objects.equals(channel, that.channel);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(macAddress, signalStrength, channel);
+    }
+
 }
diff --git a/src/main/java/org/traccar/notification/EventForwarder.java b/src/main/java/org/traccar/notification/EventForwarder.java
deleted file mode 100644
index c908fedbd..000000000
--- a/src/main/java/org/traccar/notification/EventForwarder.java
+++ /dev/null
@@ -1,106 +0,0 @@
-/*
- * Copyright 2016 - 2020 Anton Tananaev (anton@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.notification;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.traccar.Context;
-import org.traccar.config.Keys;
-import org.traccar.model.Device;
-import org.traccar.model.Event;
-import org.traccar.model.Geofence;
-import org.traccar.model.Maintenance;
-import org.traccar.model.Position;
-
-import javax.ws.rs.client.Entity;
-import javax.ws.rs.client.Invocation;
-import javax.ws.rs.client.InvocationCallback;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Set;
-
-public class EventForwarder {
-
-    private static final Logger LOGGER = LoggerFactory.getLogger(EventForwarder.class);
-
-    private final String url;
-    private final String header;
-
-    public EventForwarder() {
-        url = Context.getConfig().getString(Keys.EVENT_FORWARD_URL);
-        header = Context.getConfig().getString(Keys.EVENT_FORWARD_HEADERS);
-    }
-
-    private static final String KEY_POSITION = "position";
-    private static final String KEY_EVENT = "event";
-    private static final String KEY_GEOFENCE = "geofence";
-    private static final String KEY_DEVICE = "device";
-    private static final String KEY_MAINTENANCE = "maintenance";
-    private static final String KEY_USERS = "users";
-
-    public final void forwardEvent(Event event, Position position, Set<Long> users) {
-
-        Invocation.Builder requestBuilder = Context.getClient().target(url).request();
-
-        if (header != null && !header.isEmpty()) {
-            for (String line: header.split("\\r?\\n")) {
-                String[] values = line.split(":", 2);
-                requestBuilder.header(values[0].trim(), values[1].trim());
-            }
-        }
-
-        LOGGER.debug("Event forwarding initiated");
-        requestBuilder.async().post(
-                Entity.json(preparePayload(event, position, users)), new InvocationCallback<Object>() {
-                    @Override
-                    public void completed(Object o) {
-                        LOGGER.debug("Event forwarding succeeded");
-                    }
-
-                    @Override
-                    public void failed(Throwable throwable) {
-                        LOGGER.warn("Event forwarding failed", throwable);
-                    }
-                });
-    }
-
-    protected Map<String, Object> preparePayload(Event event, Position position, Set<Long> users) {
-        Map<String, Object> data = new HashMap<>();
-        data.put(KEY_EVENT, event);
-        if (position != null) {
-            data.put(KEY_POSITION, position);
-        }
-        Device device = Context.getIdentityManager().getById(event.getDeviceId());
-        if (device != null) {
-            data.put(KEY_DEVICE, device);
-        }
-        if (event.getGeofenceId() != 0) {
-            Geofence geofence = Context.getGeofenceManager().getById(event.getGeofenceId());
-            if (geofence != null) {
-                data.put(KEY_GEOFENCE, geofence);
-            }
-        }
-        if (event.getMaintenanceId() != 0) {
-            Maintenance maintenance = Context.getMaintenancesManager().getById(event.getMaintenanceId());
-            if (maintenance != null) {
-                data.put(KEY_MAINTENANCE, maintenance);
-            }
-        }
-        data.put(KEY_USERS, Context.getUsersManager().getItems(users));
-        return data;
-    }
-
-}
diff --git a/src/main/java/org/traccar/notification/NotificationFormatter.java b/src/main/java/org/traccar/notification/NotificationFormatter.java
index 9a6723a71..85e8a54bb 100644
--- a/src/main/java/org/traccar/notification/NotificationFormatter.java
+++ b/src/main/java/org/traccar/notification/NotificationFormatter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2017 - 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -17,50 +17,59 @@
 package org.traccar.notification;
 
 import org.apache.velocity.VelocityContext;
-import org.traccar.Context;
+import org.traccar.helper.model.UserUtil;
 import org.traccar.model.Device;
 import org.traccar.model.Event;
+import org.traccar.model.Geofence;
+import org.traccar.model.Maintenance;
 import org.traccar.model.Position;
+import org.traccar.model.Server;
 import org.traccar.model.User;
-import org.traccar.reports.ReportUtils;
+import org.traccar.session.cache.CacheManager;
 
-public final class NotificationFormatter {
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
 
-    private NotificationFormatter() {
+@Singleton
+public class NotificationFormatter {
+
+    private final CacheManager cacheManager;
+    private final TextTemplateFormatter textTemplateFormatter;
+
+    @Inject
+    public NotificationFormatter(
+            CacheManager cacheManager, TextTemplateFormatter textTemplateFormatter) {
+        this.cacheManager = cacheManager;
+        this.textTemplateFormatter = textTemplateFormatter;
     }
 
-    public static VelocityContext prepareContext(long userId, Event event, Position position) {
+    public NotificationMessage formatMessage(User user, Event event, Position position, String templatePath) {
 
-        User user = Context.getPermissionsManager().getUser(userId);
-        Device device = Context.getIdentityManager().getById(event.getDeviceId());
+        Server server = cacheManager.getServer();
+        Device device = cacheManager.getObject(Device.class, event.getDeviceId());
 
-        VelocityContext velocityContext = TextTemplateFormatter.prepareContext(user);
+        VelocityContext velocityContext = textTemplateFormatter.prepareContext(server, user);
 
         velocityContext.put("device", device);
         velocityContext.put("event", event);
         if (position != null) {
             velocityContext.put("position", position);
-            velocityContext.put("speedUnit", ReportUtils.getSpeedUnit(userId));
-            velocityContext.put("distanceUnit", ReportUtils.getDistanceUnit(userId));
-            velocityContext.put("volumeUnit", ReportUtils.getVolumeUnit(userId));
+            velocityContext.put("speedUnit", UserUtil.getSpeedUnit(server, user));
+            velocityContext.put("distanceUnit", UserUtil.getDistanceUnit(server, user));
+            velocityContext.put("volumeUnit", UserUtil.getVolumeUnit(server, user));
         }
         if (event.getGeofenceId() != 0) {
-            velocityContext.put("geofence", Context.getGeofenceManager().getById(event.getGeofenceId()));
+            velocityContext.put("geofence", cacheManager.getObject(Geofence.class, event.getGeofenceId()));
         }
         if (event.getMaintenanceId() != 0) {
-            velocityContext.put("maintenance", Context.getMaintenancesManager().getById(event.getMaintenanceId()));
+            velocityContext.put("maintenance", cacheManager.getObject(Maintenance.class, event.getMaintenanceId()));
         }
         String driverUniqueId = event.getString(Position.KEY_DRIVER_UNIQUE_ID);
         if (driverUniqueId != null) {
-            velocityContext.put("driver", Context.getDriversManager().getDriverByUniqueId(driverUniqueId));
+            velocityContext.put("driver", cacheManager.findDriverByUniqueId(device.getId(), driverUniqueId));
         }
 
-        return velocityContext;
-    }
-
-    public static NotificationMessage formatMessage(long userId, Event event, Position position, String templatePath) {
-        VelocityContext velocityContext = prepareContext(userId, event, position);
-        return TextTemplateFormatter.formatMessage(velocityContext, event.getType(), templatePath);
+        return textTemplateFormatter.formatMessage(velocityContext, event.getType(), templatePath);
     }
 
 }
diff --git a/src/main/java/org/traccar/notification/NotificatorManager.java b/src/main/java/org/traccar/notification/NotificatorManager.java
index dfd8cd3d6..8d41ee354 100644
--- a/src/main/java/org/traccar/notification/NotificatorManager.java
+++ b/src/main/java/org/traccar/notification/NotificatorManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2018 - 2023 Anton Tananaev (anton@traccar.org)
  * Copyright 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,87 +16,67 @@
  */
 package org.traccar.notification;
 
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.traccar.Context;
+import com.google.inject.Injector;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
 import org.traccar.model.Typed;
+import org.traccar.notificators.Notificator;
+import org.traccar.notificators.NotificatorCommand;
 import org.traccar.notificators.NotificatorFirebase;
 import org.traccar.notificators.NotificatorMail;
-import org.traccar.notificators.NotificatorNull;
-import org.traccar.notificators.Notificator;
+import org.traccar.notificators.NotificatorPushover;
 import org.traccar.notificators.NotificatorSms;
+import org.traccar.notificators.NotificatorTelegram;
 import org.traccar.notificators.NotificatorTraccar;
 import org.traccar.notificators.NotificatorWeb;
-import org.traccar.notificators.NotificatorTelegram;
-import org.traccar.notificators.NotificatorPushover;
 
-public final class NotificatorManager {
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
 
-    private static final Logger LOGGER = LoggerFactory.getLogger(NotificatorManager.class);
+@Singleton
+public class NotificatorManager {
 
-    private static final Notificator NULL_NOTIFICATOR = new NotificatorNull();
+    private static final Map<String, Class<? extends Notificator>> NOTIFICATORS_ALL = Map.of(
+            "command", NotificatorCommand.class,
+            "web", NotificatorWeb.class,
+            "mail", NotificatorMail.class,
+            "sms", NotificatorSms.class,
+            "firebase", NotificatorFirebase.class,
+            "traccar", NotificatorTraccar.class,
+            "telegram", NotificatorTelegram.class,
+            "pushover", NotificatorPushover.class);
 
-    private final Map<String, Notificator> notificators = new HashMap<>();
+    private final Injector injector;
 
-    public NotificatorManager() {
-        final String[] types = Context.getConfig().getString("notificator.types", "").split(",");
-        for (String type : types) {
-            String defaultNotificator = "";
-            switch (type) {
-                case "web":
-                    defaultNotificator = NotificatorWeb.class.getCanonicalName();
-                    break;
-                case "mail":
-                    defaultNotificator = NotificatorMail.class.getCanonicalName();
-                    break;
-                case "sms":
-                    defaultNotificator = NotificatorSms.class.getCanonicalName();
-                    break;
-                case "firebase":
-                    defaultNotificator = NotificatorFirebase.class.getCanonicalName();
-                    break;
-                case "traccar":
-                    defaultNotificator = NotificatorTraccar.class.getCanonicalName();
-                    break;
-                case "telegram":
-                    defaultNotificator = NotificatorTelegram.class.getCanonicalName();
-                    break;
-                case "pushover":
-                    defaultNotificator = NotificatorPushover.class.getCanonicalName();
-                    break;
-                default:
-                    break;
-            }
-            final String className = Context.getConfig()
-                    .getString("notificator." + type + ".class", defaultNotificator);
-            try {
-                notificators.put(type, (Notificator) Class.forName(className).newInstance());
-            } catch (ClassNotFoundException | InstantiationException | IllegalAccessException e) {
-                LOGGER.warn("Unable to load notificator class for " + type + " " + className + " " + e.getMessage());
-            }
+    private final Set<String> types = new HashSet<>();
+
+    @Inject
+    public NotificatorManager(Injector injector, Config config) {
+        this.injector = injector;
+        String types = config.getString(Keys.NOTIFICATOR_TYPES);
+        if (types != null) {
+            this.types.addAll(Arrays.asList(types.split(",")));
         }
     }
 
     public Notificator getNotificator(String type) {
-        final Notificator notificator = notificators.get(type);
-        if (notificator == null) {
-            LOGGER.warn("No notificator configured for type : " + type);
-            return NULL_NOTIFICATOR;
+        var clazz = NOTIFICATORS_ALL.get(type);
+        if (clazz != null && types.contains(type)) {
+            var notificator = injector.getInstance(clazz);
+            if (notificator != null) {
+                return notificator;
+            }
         }
-        return notificator;
+        throw new RuntimeException("Failed to get notificator " + type);
     }
 
     public Set<Typed> getAllNotificatorTypes() {
-        Set<Typed> result = new HashSet<>();
-        for (String notificator : notificators.keySet()) {
-            result.add(new Typed(notificator));
-        }
-        return result;
+        return types.stream().map(Typed::new).collect(Collectors.toUnmodifiableSet());
     }
 
 }
diff --git a/src/main/java/org/traccar/notification/PropertiesProvider.java b/src/main/java/org/traccar/notification/PropertiesProvider.java
index f0078feef..91887b5d4 100644
--- a/src/main/java/org/traccar/notification/PropertiesProvider.java
+++ b/src/main/java/org/traccar/notification/PropertiesProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,6 +16,7 @@
 package org.traccar.notification;
 
 import org.traccar.config.Config;
+import org.traccar.config.ConfigKey;
 import org.traccar.model.ExtendedModel;
 
 public class PropertiesProvider {
@@ -32,36 +33,29 @@ public class PropertiesProvider {
         this.extendedModel = extendedModel;
     }
 
-    public String getString(String key) {
+    public String getString(ConfigKey<String> key) {
         if (config != null) {
             return config.getString(key);
         } else {
-            return extendedModel.getString(key);
+            String result = extendedModel.getString(key.getKey());
+            return result != null ? result : key.getDefaultValue();
         }
     }
 
-    public String getString(String key, String defaultValue) {
-        String value = getString(key);
-        if (value == null) {
-            value = defaultValue;
-        }
-        return value;
-    }
-
-    public int getInteger(String key, int defaultValue) {
+    public int getInteger(ConfigKey<Integer> key) {
         if (config != null) {
-            return config.getInteger(key, defaultValue);
+            return config.getInteger(key);
         } else {
-            Object result = extendedModel.getAttributes().get(key);
+            Object result = extendedModel.getAttributes().get(key.getKey());
             if (result != null) {
                 return result instanceof String ? Integer.parseInt((String) result) : (Integer) result;
             } else {
-                return defaultValue;
+                return key.getDefaultValue();
             }
         }
     }
 
-    public Boolean getBoolean(String key) {
+    public Boolean getBoolean(ConfigKey<Boolean> key) {
         if (config != null) {
             if (config.hasKey(key)) {
                 return config.getBoolean(key);
@@ -69,7 +63,7 @@ public class PropertiesProvider {
                 return null;
             }
         } else {
-            Object result = extendedModel.getAttributes().get(key);
+            Object result = extendedModel.getAttributes().get(key.getKey());
             if (result != null) {
                 return result instanceof String ? Boolean.valueOf((String) result) : (Boolean) result;
             } else {
diff --git a/src/main/java/org/traccar/notification/TextTemplateFormatter.java b/src/main/java/org/traccar/notification/TextTemplateFormatter.java
index b7058c824..ab90d76d4 100644
--- a/src/main/java/org/traccar/notification/TextTemplateFormatter.java
+++ b/src/main/java/org/traccar/notification/TextTemplateFormatter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2021 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,37 +17,56 @@ package org.traccar.notification;
 
 import org.apache.velocity.Template;
 import org.apache.velocity.VelocityContext;
+import org.apache.velocity.app.VelocityEngine;
 import org.apache.velocity.exception.ResourceNotFoundException;
 import org.apache.velocity.tools.generic.DateTool;
 import org.apache.velocity.tools.generic.NumberTool;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.traccar.Context;
+import org.traccar.api.signature.TokenManager;
+import org.traccar.helper.model.UserUtil;
+import org.traccar.model.Server;
 import org.traccar.model.User;
-import org.traccar.reports.ReportUtils;
+import org.traccar.storage.StorageException;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.io.IOException;
 import java.io.StringWriter;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Paths;
+import java.security.GeneralSecurityException;
 import java.util.Locale;
 
-public final class TextTemplateFormatter {
+@Singleton
+public class TextTemplateFormatter {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(TextTemplateFormatter.class);
 
-    private TextTemplateFormatter() {
+    private final VelocityEngine velocityEngine;
+    private final TokenManager tokenManager;
+
+    @Inject
+    public TextTemplateFormatter(VelocityEngine velocityEngine, TokenManager tokenManager) {
+        this.velocityEngine = velocityEngine;
+        this.tokenManager = tokenManager;
     }
 
-    public static VelocityContext prepareContext(User user) {
+    public VelocityContext prepareContext(Server server, User user) {
 
         VelocityContext velocityContext = new VelocityContext();
 
         if (user != null) {
             velocityContext.put("user", user);
-            velocityContext.put("timezone", ReportUtils.getTimezone(user.getId()));
+            velocityContext.put("timezone", UserUtil.getTimezone(server, user));
+            try {
+                velocityContext.put("token", tokenManager.generateToken(user.getId()));
+            } catch (IOException | GeneralSecurityException | StorageException e) {
+                LOGGER.warn("Token generation failed", e);
+            }
         }
 
-        velocityContext.put("webUrl", Context.getVelocityEngine().getProperty("web.url"));
+        velocityContext.put("webUrl", velocityEngine.getProperty("web.url"));
         velocityContext.put("dateTool", new DateTool());
         velocityContext.put("numberTool", new NumberTool());
         velocityContext.put("locale", Locale.getDefault());
@@ -55,23 +74,23 @@ public final class TextTemplateFormatter {
         return velocityContext;
     }
 
-    public static Template getTemplate(String name, String path) {
+    public Template getTemplate(String name, String path) {
 
         String templateFilePath;
         Template template;
 
         try {
             templateFilePath = Paths.get(path, name + ".vm").toString();
-            template = Context.getVelocityEngine().getTemplate(templateFilePath, StandardCharsets.UTF_8.name());
+            template = velocityEngine.getTemplate(templateFilePath, StandardCharsets.UTF_8.name());
         } catch (ResourceNotFoundException error) {
             LOGGER.warn("Notification template error", error);
             templateFilePath = Paths.get(path, "unknown.vm").toString();
-            template = Context.getVelocityEngine().getTemplate(templateFilePath, StandardCharsets.UTF_8.name());
+            template = velocityEngine.getTemplate(templateFilePath, StandardCharsets.UTF_8.name());
         }
         return template;
     }
 
-    public static NotificationMessage formatMessage(VelocityContext velocityContext, String name, String templatePath) {
+    public NotificationMessage formatMessage(VelocityContext velocityContext, String name, String templatePath) {
         StringWriter writer = new StringWriter();
         getTemplate(name, templatePath).merge(velocityContext, writer);
         return new NotificationMessage((String) velocityContext.get("subject"), writer.toString());
diff --git a/src/main/java/org/traccar/notificators/Notificator.java b/src/main/java/org/traccar/notificators/Notificator.java
index dd888bae9..cf71141c0 100644
--- a/src/main/java/org/traccar/notificators/Notificator.java
+++ b/src/main/java/org/traccar/notificators/Notificator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2018 - 2023 Anton Tananaev (anton@traccar.org)
  * Copyright 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,27 +16,14 @@
  */
 package org.traccar.notificators;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 import org.traccar.model.Event;
+import org.traccar.model.Notification;
 import org.traccar.model.Position;
+import org.traccar.model.User;
 import org.traccar.notification.MessageException;
 
-public abstract class Notificator {
+public interface Notificator {
 
-    private static final Logger LOGGER = LoggerFactory.getLogger(Notificator.class);
-
-    public void sendAsync(final long userId, final Event event, final Position position) {
-        new Thread(() -> {
-            try {
-                sendSync(userId, event, position);
-            } catch (MessageException | InterruptedException error) {
-                LOGGER.warn("Event send error", error);
-            }
-        }).start();
-    }
-
-    public abstract void sendSync(long userId, Event event, Position position)
-        throws MessageException, InterruptedException;
+    void send(Notification notification, User user, Event event, Position position) throws MessageException;
 
 }
diff --git a/src/main/java/org/traccar/notificators/NotificatorCommand.java b/src/main/java/org/traccar/notificators/NotificatorCommand.java
new file mode 100644
index 000000000..5dd3313d4
--- /dev/null
+++ b/src/main/java/org/traccar/notificators/NotificatorCommand.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.notificators;
+
+import org.traccar.database.CommandsManager;
+import org.traccar.model.Command;
+import org.traccar.model.Event;
+import org.traccar.model.Notification;
+import org.traccar.model.Position;
+import org.traccar.model.User;
+import org.traccar.notification.MessageException;
+import org.traccar.storage.Storage;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+
+@Singleton
+public class NotificatorCommand implements Notificator {
+
+    private final Storage storage;
+    private final CommandsManager commandsManager;
+
+    @Inject
+    public NotificatorCommand(Storage storage, CommandsManager commandsManager) {
+        this.storage = storage;
+        this.commandsManager = commandsManager;
+    }
+
+    @Override
+    public void send(Notification notification, User user, Event event, Position position) throws MessageException {
+
+        if (notification == null || notification.getCommandId() <= 0) {
+            throw new MessageException("Saved command not provided");
+        }
+
+        try {
+            Command command = storage.getObject(Command.class, new Request(
+                    new Columns.All(), new Condition.Equals("id", notification.getCommandId())));
+            command.setDeviceId(event.getDeviceId());
+            commandsManager.sendCommand(command);
+        } catch (Exception e) {
+            throw new MessageException(e);
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/notificators/NotificatorFirebase.java b/src/main/java/org/traccar/notificators/NotificatorFirebase.java
index f91ec25a0..be95fb28e 100644
--- a/src/main/java/org/traccar/notificators/NotificatorFirebase.java
+++ b/src/main/java/org/traccar/notificators/NotificatorFirebase.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2018 - 2023 Anton Tananaev (anton@traccar.org)
  * Copyright 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,88 +16,131 @@
  */
 package org.traccar.notificators;
 
-import com.fasterxml.jackson.annotation.JsonProperty;
+import com.google.auth.oauth2.GoogleCredentials;
+import com.google.firebase.FirebaseApp;
+import com.google.firebase.FirebaseOptions;
+import com.google.firebase.messaging.AndroidConfig;
+import com.google.firebase.messaging.AndroidNotification;
+import com.google.firebase.messaging.ApnsConfig;
+import com.google.firebase.messaging.Aps;
+import com.google.firebase.messaging.FirebaseMessaging;
+import com.google.firebase.messaging.FirebaseMessagingException;
+import com.google.firebase.messaging.MessagingErrorCode;
+import com.google.firebase.messaging.MulticastMessage;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.traccar.Context;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 import org.traccar.model.Event;
+import org.traccar.model.Notification;
 import org.traccar.model.Position;
 import org.traccar.model.User;
-import org.traccar.notification.NotificationMessage;
+import org.traccar.notification.MessageException;
 import org.traccar.notification.NotificationFormatter;
-
-import javax.ws.rs.client.Entity;
-import javax.ws.rs.client.InvocationCallback;
-
-public class NotificatorFirebase extends Notificator {
+import org.traccar.session.cache.CacheManager;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.LinkedList;
+import java.util.List;
+
+@Singleton
+public class NotificatorFirebase implements Notificator {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(NotificatorFirebase.class);
 
-    private final String url;
-    private final String key;
+    private final NotificationFormatter notificationFormatter;
+    private final Storage storage;
+    private final CacheManager cacheManager;
 
-    public static class Notification {
-        @JsonProperty("title")
-        private String title;
-        @JsonProperty("body")
-        private String body;
-        @JsonProperty("sound")
-        private String sound;
-    }
+    @Inject
+    public NotificatorFirebase(
+            Config config, NotificationFormatter notificationFormatter,
+            Storage storage, CacheManager cacheManager) throws IOException {
 
-    public static class Message {
-        @JsonProperty("registration_ids")
-        private String[] tokens;
-        @JsonProperty("notification")
-        private Notification notification;
-    }
+        this.notificationFormatter = notificationFormatter;
+        this.storage = storage;
+        this.cacheManager = cacheManager;
 
-    public NotificatorFirebase() {
-        this(
-                "https://fcm.googleapis.com/fcm/send",
-                Context.getConfig().getString(Keys.NOTIFICATOR_FIREBASE_KEY));
-    }
+        InputStream serviceAccount = new ByteArrayInputStream(
+                config.getString(Keys.NOTIFICATOR_FIREBASE_SERVICE_ACCOUNT).getBytes());
 
-    protected NotificatorFirebase(String url, String key) {
-        this.url = url;
-        this.key = key;
+        FirebaseOptions options = FirebaseOptions.builder()
+                .setCredentials(GoogleCredentials.fromStream(serviceAccount))
+                .build();
+
+        FirebaseApp.initializeApp(options);
     }
 
     @Override
-    public void sendSync(long userId, Event event, Position position) {
-        final User user = Context.getPermissionsManager().getUser(userId);
-        if (user.getAttributes().containsKey("notificationTokens")) {
-
-            NotificationMessage shortMessage = NotificationFormatter.formatMessage(userId, event, position, "short");
-
-            Notification notification = new Notification();
-            notification.title = shortMessage.getSubject();
-            notification.body = shortMessage.getBody();
-            notification.sound = "default";
-
-            Message message = new Message();
-            message.tokens = user.getString("notificationTokens").split("[, ]");
-            message.notification = notification;
-
-            Context.getClient().target(url).request()
-                    .header("Authorization", "key=" + key)
-                    .async().post(Entity.json(message), new InvocationCallback<Object>() {
-                @Override
-                public void completed(Object o) {
+    public void send(Notification notification, User user, Event event, Position position) throws MessageException {
+        if (user.hasAttribute("notificationTokens")) {
+
+            var shortMessage = notificationFormatter.formatMessage(user, event, position, "short");
+
+            List<String> registrationTokens = new ArrayList<>(
+                    Arrays.asList(user.getString("notificationTokens").split("[, ]")));
+
+            MulticastMessage message = MulticastMessage.builder()
+                    .setNotification(com.google.firebase.messaging.Notification.builder()
+                            .setTitle(shortMessage.getSubject())
+                            .setBody(shortMessage.getBody())
+                            .build())
+                    .setAndroidConfig(AndroidConfig.builder()
+                            .setNotification(AndroidNotification.builder()
+                                    .setSound("default")
+                                    .build())
+                            .build())
+                    .setApnsConfig(ApnsConfig.builder()
+                            .setAps(Aps.builder()
+                                    .setSound("default")
+                                    .build())
+                            .build())
+                    .addAllTokens(registrationTokens)
+                    .putData("eventId", String.valueOf(event.getId()))
+                    .build();
+
+            try {
+                var result = FirebaseMessaging.getInstance().sendMulticast(message);
+                List<String> failedTokens = new LinkedList<>();
+                var iterator = result.getResponses().listIterator();
+                while (iterator.hasNext()) {
+                    int index = iterator.nextIndex();
+                    var response = iterator.next();
+                    if (!response.isSuccessful()) {
+                        MessagingErrorCode error = response.getException().getMessagingErrorCode();
+                        if (error == MessagingErrorCode.INVALID_ARGUMENT || error == MessagingErrorCode.UNREGISTERED) {
+                            failedTokens.add(registrationTokens.get(index));
+                        }
+                        LOGGER.warn("Firebase user {} error", user.getId(), response.getException());
+                    }
                 }
-
-                @Override
-                public void failed(Throwable throwable) {
-                    LOGGER.warn("Firebase notification error", throwable);
+                if (!failedTokens.isEmpty()) {
+                    registrationTokens.removeAll(failedTokens);
+                    if (registrationTokens.isEmpty()) {
+                        user.getAttributes().remove("notificationTokens");
+                    } else {
+                        user.set("notificationTokens", String.join(",", registrationTokens));
+                    }
+                    storage.updateObject(user, new Request(
+                            new Columns.Include("attributes"),
+                            new Condition.Equals("id", user.getId())));
+                    cacheManager.updateOrInvalidate(true, user);
                 }
-            });
+            } catch (FirebaseMessagingException | StorageException e) {
+                LOGGER.warn("Firebase error", e);
+            }
         }
     }
 
-    @Override
-    public void sendAsync(long userId, Event event, Position position) {
-        sendSync(userId, event, position);
-    }
-
 }
diff --git a/src/main/java/org/traccar/notificators/NotificatorMail.java b/src/main/java/org/traccar/notificators/NotificatorMail.java
index 9b5637ed8..3ab050686 100644
--- a/src/main/java/org/traccar/notificators/NotificatorMail.java
+++ b/src/main/java/org/traccar/notificators/NotificatorMail.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2023 Anton Tananaev (anton@traccar.org)
  * Copyright 2017 - 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,22 +16,35 @@
  */
 package org.traccar.notificators;
 
-import org.traccar.Context;
+import org.traccar.mail.MailManager;
 import org.traccar.model.Event;
+import org.traccar.model.Notification;
 import org.traccar.model.Position;
-import org.traccar.notification.NotificationMessage;
+import org.traccar.model.User;
 import org.traccar.notification.MessageException;
 import org.traccar.notification.NotificationFormatter;
 
-import javax.mail.MessagingException;
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import jakarta.mail.MessagingException;
 
-public final class NotificatorMail extends Notificator {
+@Singleton
+public class NotificatorMail implements Notificator {
+
+    private final MailManager mailManager;
+    private final NotificationFormatter notificationFormatter;
+
+    @Inject
+    public NotificatorMail(MailManager mailManager, NotificationFormatter notificationFormatter) {
+        this.mailManager = mailManager;
+        this.notificationFormatter = notificationFormatter;
+    }
 
     @Override
-    public void sendSync(long userId, Event event, Position position) throws MessageException {
+    public void send(Notification notification, User user, Event event, Position position) throws MessageException {
         try {
-            NotificationMessage fullMessage = NotificationFormatter.formatMessage(userId, event, position, "full");
-            Context.getMailManager().sendMessage(userId, fullMessage.getSubject(), fullMessage.getBody());
+            var fullMessage = notificationFormatter.formatMessage(user, event, position, "full");
+            mailManager.sendMessage(user, false, fullMessage.getSubject(), fullMessage.getBody());
         } catch (MessagingException e) {
             throw new MessageException(e);
         }
diff --git a/src/main/java/org/traccar/notificators/NotificatorNull.java b/src/main/java/org/traccar/notificators/NotificatorNull.java
deleted file mode 100644
index 9364336be..000000000
--- a/src/main/java/org/traccar/notificators/NotificatorNull.java
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Copyright 2018 Anton Tananaev (anton@traccar.org)
- * Copyright 2018 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.notificators;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.traccar.model.Event;
-import org.traccar.model.Position;
-
-public final class NotificatorNull extends Notificator {
-
-    private static final Logger LOGGER = LoggerFactory.getLogger(NotificatorNull.class);
-
-    @Override
-    public void sendAsync(long userId, Event event, Position position) {
-        LOGGER.warn("You are using null notificatior, please check your configuration, notification not sent");
-    }
-
-    @Override
-    public void sendSync(long userId, Event event, Position position) {
-        LOGGER.warn("You are using null notificatior, please check your configuration, notification not sent");
-    }
-
-}
diff --git a/src/main/java/org/traccar/notificators/NotificatorPushover.java b/src/main/java/org/traccar/notificators/NotificatorPushover.java
index 456c2fe4f..9f2a8c94d 100644
--- a/src/main/java/org/traccar/notificators/NotificatorPushover.java
+++ b/src/main/java/org/traccar/notificators/NotificatorPushover.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2020 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,22 +16,24 @@
 package org.traccar.notificators;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.traccar.Context;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 import org.traccar.model.Event;
+import org.traccar.model.Notification;
 import org.traccar.model.Position;
 import org.traccar.model.User;
 import org.traccar.notification.NotificationFormatter;
-import org.traccar.notification.NotificationMessage;
 
-import javax.ws.rs.client.Entity;
-import javax.ws.rs.client.InvocationCallback;
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import jakarta.ws.rs.client.Client;
+import jakarta.ws.rs.client.Entity;
 
-public class NotificatorPushover extends Notificator {
+@Singleton
+public class NotificatorPushover implements Notificator {
 
-    private static final Logger LOGGER = LoggerFactory.getLogger(NotificatorPushover.class);
+    private final NotificationFormatter notificationFormatter;
+    private final Client client;
 
     private final String url;
     private final String token;
@@ -50,58 +52,35 @@ public class NotificatorPushover extends Notificator {
         private String message;
     }
 
-    public NotificatorPushover() {
+    @Inject
+    public NotificatorPushover(Config config, NotificationFormatter notificationFormatter, Client client) {
+        this.notificationFormatter = notificationFormatter;
+        this.client = client;
         url = "https://api.pushover.net/1/messages.json";
-        token = Context.getConfig().getString(Keys.NOTIFICATOR_PUSHOVER_TOKEN);
-        user = Context.getConfig().getString(Keys.NOTIFICATOR_PUSHOVER_USER);
+        token = config.getString(Keys.NOTIFICATOR_PUSHOVER_TOKEN);
+        user = config.getString(Keys.NOTIFICATOR_PUSHOVER_USER);
     }
 
     @Override
-    public void sendSync(long userId, Event event, Position position) {
+    public void send(Notification notification, User user, Event event, Position position) {
+        var shortMessage = notificationFormatter.formatMessage(user, event, position, "short");
 
-        final User user = Context.getPermissionsManager().getUser(userId);
-
-        String device = "";
-
-        if (user.getAttributes().containsKey("notificator.pushover.device")) {
-            device = user.getString("notificator.pushover.device").replaceAll(" *, *", ",");
-        }
+        Message message = new Message();
+        message.token = token;
 
-        if (token == null) {
-            LOGGER.warn("Pushover token not found");
-            return;
+        message.user = user.getString("pushoverUserKey");
+        if (message.user == null) {
+            message.user = this.user;
         }
 
-        if (this.user == null) {
-            LOGGER.warn("Pushover user not found");
-            return;
+        if (user.hasAttribute("pushoverDeviceNames")) {
+            message.device = user.getString("pushoverDeviceNames").replaceAll(" *, *", ",");
         }
 
-        NotificationMessage shortMessage = NotificationFormatter.formatMessage(userId, event, position, "short");
-
-        Message message = new Message();
-        message.token = token;
-        message.user = this.user;
-        message.device = device;
         message.title = shortMessage.getSubject();
         message.message = shortMessage.getBody();
 
-        Context.getClient().target(url).request()
-                .async().post(Entity.json(message), new InvocationCallback<Object>() {
-            @Override
-            public void completed(Object o) {
-            }
-
-            @Override
-            public void failed(Throwable throwable) {
-                LOGGER.warn("Pushover API error", throwable);
-            }
-        });
-    }
-
-    @Override
-    public void sendAsync(long userId, Event event, Position position) {
-        sendSync(userId, event, position);
+        client.target(url).request().post(Entity.json(message)).close();
     }
 
 }
diff --git a/src/main/java/org/traccar/notificators/NotificatorSms.java b/src/main/java/org/traccar/notificators/NotificatorSms.java
index fb817b112..2b6b20b1b 100644
--- a/src/main/java/org/traccar/notificators/NotificatorSms.java
+++ b/src/main/java/org/traccar/notificators/NotificatorSms.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2023 Anton Tananaev (anton@traccar.org)
  * Copyright 2017 - 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,37 +16,39 @@
  */
 package org.traccar.notificators;
 
-import org.traccar.Context;
-import org.traccar.Main;
 import org.traccar.database.StatisticsManager;
 import org.traccar.model.Event;
+import org.traccar.model.Notification;
 import org.traccar.model.Position;
 import org.traccar.model.User;
 import org.traccar.notification.MessageException;
 import org.traccar.notification.NotificationFormatter;
-import org.traccar.notification.NotificationMessage;
+import org.traccar.sms.SmsManager;
 
-public final class NotificatorSms extends Notificator {
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
 
-    @Override
-    public void sendAsync(long userId, Event event, Position position) {
-        final User user = Context.getPermissionsManager().getUser(userId);
-        if (user.getPhone() != null) {
-            NotificationMessage shortMessage = NotificationFormatter.formatMessage(userId, event, position, "short");
-            Main.getInjector().getInstance(StatisticsManager.class).registerSms();
-            Context.getSmsManager().sendMessageAsync(user.getPhone(),
-                    shortMessage.getBody(), false);
-        }
+@Singleton
+public class NotificatorSms implements Notificator {
+
+    private final SmsManager smsManager;
+    private final NotificationFormatter notificationFormatter;
+    private final StatisticsManager statisticsManager;
+
+    @Inject
+    public NotificatorSms(
+            SmsManager smsManager, NotificationFormatter notificationFormatter, StatisticsManager statisticsManager) {
+        this.smsManager = smsManager;
+        this.notificationFormatter = notificationFormatter;
+        this.statisticsManager = statisticsManager;
     }
 
     @Override
-    public void sendSync(long userId, Event event, Position position) throws MessageException, InterruptedException {
-        final User user = Context.getPermissionsManager().getUser(userId);
+    public void send(Notification notification, User user, Event event, Position position) throws MessageException {
         if (user.getPhone() != null) {
-            NotificationMessage shortMessage = NotificationFormatter.formatMessage(userId, event, position, "short");
-            Main.getInjector().getInstance(StatisticsManager.class).registerSms();
-            Context.getSmsManager().sendMessageSync(user.getPhone(),
-                    shortMessage.getBody(), false);
+            var shortMessage = notificationFormatter.formatMessage(user, event, position, "short");
+            statisticsManager.registerSms();
+            smsManager.sendMessage(user.getPhone(), shortMessage.getBody(), false);
         }
     }
 
diff --git a/src/main/java/org/traccar/notificators/NotificatorTelegram.java b/src/main/java/org/traccar/notificators/NotificatorTelegram.java
index 70148110c..c91aaa4ff 100644
--- a/src/main/java/org/traccar/notificators/NotificatorTelegram.java
+++ b/src/main/java/org/traccar/notificators/NotificatorTelegram.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2019 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2019 - 2023 Anton Tananaev (anton@traccar.org)
  * Copyright 2021 Rafael Miquelino (rafaelmiquelino@gmail.com)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -17,22 +17,24 @@
 package org.traccar.notificators;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.traccar.Context;
-import org.traccar.model.User;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 import org.traccar.model.Event;
+import org.traccar.model.Notification;
 import org.traccar.model.Position;
+import org.traccar.model.User;
 import org.traccar.notification.NotificationFormatter;
-import org.traccar.notification.NotificationMessage;
 
-import javax.ws.rs.client.Entity;
-import javax.ws.rs.client.InvocationCallback;
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import jakarta.ws.rs.client.Client;
+import jakarta.ws.rs.client.Entity;
 
-public class NotificatorTelegram extends Notificator {
+@Singleton
+public class NotificatorTelegram implements Notificator {
 
-    private static final Logger LOGGER = LoggerFactory.getLogger(NotificatorTelegram.class);
+    private final NotificationFormatter notificationFormatter;
+    private final Client client;
 
     private final String urlSendText;
     private final String urlSendLocation;
@@ -61,29 +63,16 @@ public class NotificatorTelegram extends Notificator {
         private int bearing;
     }
 
-    public NotificatorTelegram() {
+    @Inject
+    public NotificatorTelegram(Config config, NotificationFormatter notificationFormatter, Client client) {
+        this.notificationFormatter = notificationFormatter;
+        this.client = client;
         urlSendText = String.format(
-                "https://api.telegram.org/bot%s/sendMessage",
-                Context.getConfig().getString(Keys.NOTIFICATOR_TELEGRAM_KEY));
+                "https://api.telegram.org/bot%s/sendMessage", config.getString(Keys.NOTIFICATOR_TELEGRAM_KEY));
         urlSendLocation = String.format(
-                "https://api.telegram.org/bot%s/sendLocation",
-                Context.getConfig().getString(Keys.NOTIFICATOR_TELEGRAM_KEY));
-        chatId = Context.getConfig().getString(Keys.NOTIFICATOR_TELEGRAM_CHAT_ID);
-        sendLocation = Context.getConfig().getBoolean(Keys.NOTIFICATOR_TELEGRAM_SEND_LOCATION);
-    }
-
-    private void executeRequest(String url, Object message) {
-        Context.getClient().target(url).request()
-                .async().post(Entity.json(message), new InvocationCallback<Object>() {
-            @Override
-            public void completed(Object o) {
-            }
-
-            @Override
-            public void failed(Throwable throwable) {
-                LOGGER.warn("Telegram API error", throwable);
-            }
-        });
+                "https://api.telegram.org/bot%s/sendLocation", config.getString(Keys.NOTIFICATOR_TELEGRAM_KEY));
+        chatId = config.getString(Keys.NOTIFICATOR_TELEGRAM_CHAT_ID);
+        sendLocation = config.getBoolean(Keys.NOTIFICATOR_TELEGRAM_SEND_LOCATION);
     }
 
     private LocationMessage createLocationMessage(String messageChatId, Position position) {
@@ -97,9 +86,8 @@ public class NotificatorTelegram extends Notificator {
     }
 
     @Override
-    public void sendSync(long userId, Event event, Position position) {
-        User user = Context.getPermissionsManager().getUser(userId);
-        NotificationMessage shortMessage = NotificationFormatter.formatMessage(userId, event, position, "short");
+    public void send(Notification notification, User user, Event event, Position position) {
+        var shortMessage = notificationFormatter.formatMessage(user, event, position, "short");
 
         TextMessage message = new TextMessage();
         message.chatId = user.getString("telegramChatId");
@@ -107,15 +95,11 @@ public class NotificatorTelegram extends Notificator {
             message.chatId = chatId;
         }
         message.text = shortMessage.getBody();
-        executeRequest(urlSendText, message);
+        client.target(urlSendText).request().post(Entity.json(message)).close();
         if (sendLocation && position != null) {
-            executeRequest(urlSendLocation, createLocationMessage(message.chatId, position));
+            client.target(urlSendLocation).request().post(
+                    Entity.json(createLocationMessage(message.chatId, position))).close();
         }
     }
 
-    @Override
-    public void sendAsync(long userId, Event event, Position position) {
-        sendSync(userId, event, position);
-    }
-
 }
diff --git a/src/main/java/org/traccar/notificators/NotificatorTraccar.java b/src/main/java/org/traccar/notificators/NotificatorTraccar.java
index 5bcd18b5e..e354adccb 100644
--- a/src/main/java/org/traccar/notificators/NotificatorTraccar.java
+++ b/src/main/java/org/traccar/notificators/NotificatorTraccar.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2020 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,15 +15,125 @@
  */
 package org.traccar.notificators;
 
-import org.traccar.Context;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+import org.traccar.model.User;
+import org.traccar.notification.NotificationFormatter;
+import org.traccar.session.cache.CacheManager;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
 
-public class NotificatorTraccar extends NotificatorFirebase {
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.Client;
+import jakarta.ws.rs.client.Entity;
+import jakarta.ws.rs.core.Response;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.LinkedList;
+import java.util.List;
 
-    public NotificatorTraccar() {
-        super(
-                "https://www.traccar.org/push/",
-                Context.getConfig().getString(Keys.NOTIFICATOR_TRACCAR_KEY));
+@Singleton
+public class NotificatorTraccar implements Notificator {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(NotificatorTraccar.class);
+
+    private final NotificationFormatter notificationFormatter;
+    private final Client client;
+    private final Storage storage;
+    private final CacheManager cacheManager;
+
+    private final String url;
+    private final String key;
+
+    public static class NotificationObject {
+        @JsonProperty("title")
+        private String title;
+        @JsonProperty("body")
+        private String body;
+        @JsonProperty("sound")
+        private String sound;
+    }
+
+    public static class Message {
+        @JsonProperty("registration_ids")
+        private String[] tokens;
+        @JsonProperty("notification")
+        private NotificationObject notification;
+    }
+
+    @Inject
+    public NotificatorTraccar(
+            Config config, NotificationFormatter notificationFormatter, Client client,
+            Storage storage, CacheManager cacheManager) {
+        this.notificationFormatter = notificationFormatter;
+        this.client = client;
+        this.storage = storage;
+        this.cacheManager = cacheManager;
+        this.url = "https://www.traccar.org/push/";
+        this.key = config.getString(Keys.NOTIFICATOR_TRACCAR_KEY);
+    }
+
+    @Override
+    public void send(org.traccar.model.Notification notification, User user, Event event, Position position) {
+        if (user.hasAttribute("notificationTokens")) {
+
+            var shortMessage = notificationFormatter.formatMessage(user, event, position, "short");
+
+            NotificationObject item = new NotificationObject();
+            item.title = shortMessage.getSubject();
+            item.body = shortMessage.getBody();
+            item.sound = "default";
+
+            String[] tokenArray = user.getString("notificationTokens").split("[, ]");
+            List<String> registrationTokens = new ArrayList<>(Arrays.asList(tokenArray));
+
+            Message message = new Message();
+            message.tokens = user.getString("notificationTokens").split("[, ]");
+            message.notification = item;
+
+            var request = client.target(url).request().header("Authorization", "key=" + key);
+            try (Response result = request.post(Entity.json(message))) {
+                var json = result.readEntity(JsonObject.class);
+                List<String> failedTokens = new LinkedList<>();
+                var responses = json.getJsonArray("responses");
+                for (int i = 0; i < responses.size(); i++) {
+                    var response = responses.getJsonObject(i);
+                    if (!response.getBoolean("success")) {
+                        var error = response.getJsonObject("error");
+                        String errorCode = error.getString("code");
+                        if (errorCode.equals("messaging/invalid-argument")
+                                || errorCode.equals("messaging/registration-token-not-registered")) {
+                            failedTokens.add(registrationTokens.get(i));
+                        }
+                        LOGGER.warn("Push user {} error - {}", user.getId(), error.getString("message"));
+                    }
+                }
+                if (!failedTokens.isEmpty()) {
+                    registrationTokens.removeAll(failedTokens);
+                    if (registrationTokens.isEmpty()) {
+                        user.getAttributes().remove("notificationTokens");
+                    } else {
+                        user.set("notificationTokens", String.join(",", registrationTokens));
+                    }
+                    storage.updateObject(user, new Request(
+                            new Columns.Include("attributes"),
+                            new Condition.Equals("id", user.getId())));
+                    cacheManager.updateOrInvalidate(true, user);
+                }
+            } catch (StorageException e) {
+                LOGGER.warn("Push error", e);
+            }
+        }
     }
 
 }
diff --git a/src/main/java/org/traccar/notificators/NotificatorWeb.java b/src/main/java/org/traccar/notificators/NotificatorWeb.java
index 1d11c0b46..3a125db3c 100644
--- a/src/main/java/org/traccar/notificators/NotificatorWeb.java
+++ b/src/main/java/org/traccar/notificators/NotificatorWeb.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2018 - 2023 Anton Tananaev (anton@traccar.org)
  * Copyright 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,15 +16,45 @@
  */
 package org.traccar.notificators;
 
-import org.traccar.Context;
 import org.traccar.model.Event;
+import org.traccar.model.Notification;
 import org.traccar.model.Position;
+import org.traccar.model.User;
+import org.traccar.notification.NotificationFormatter;
+import org.traccar.session.ConnectionManager;
 
-public final class NotificatorWeb extends Notificator {
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+
+@Singleton
+public final class NotificatorWeb implements Notificator {
+
+    private final ConnectionManager connectionManager;
+    private final NotificationFormatter notificationFormatter;
+
+    @Inject
+    public NotificatorWeb(ConnectionManager connectionManager, NotificationFormatter notificationFormatter) {
+        this.connectionManager = connectionManager;
+        this.notificationFormatter = notificationFormatter;
+    }
 
     @Override
-    public void sendSync(long userId, Event event, Position position) {
-        Context.getConnectionManager().updateEvent(userId, event);
+    public void send(Notification notification, User user, Event event, Position position) {
+
+        Event copy = new Event();
+        copy.setId(event.getId());
+        copy.setDeviceId(event.getDeviceId());
+        copy.setType(event.getType());
+        copy.setEventTime(event.getEventTime());
+        copy.setPositionId(event.getPositionId());
+        copy.setGeofenceId(event.getGeofenceId());
+        copy.setMaintenanceId(event.getMaintenanceId());
+        copy.getAttributes().putAll(event.getAttributes());
+
+        var message = notificationFormatter.formatMessage(user, event, position, "short");
+        copy.set("message", message.getBody());
+
+        connectionManager.updateEvent(true, user.getId(), copy);
     }
 
 }
diff --git a/src/main/java/org/traccar/protocol/AdmProtocol.java b/src/main/java/org/traccar/protocol/AdmProtocol.java
index d1d81118c..3856dc906 100644
--- a/src/main/java/org/traccar/protocol/AdmProtocol.java
+++ b/src/main/java/org/traccar/protocol/AdmProtocol.java
@@ -19,17 +19,21 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class AdmProtocol extends BaseProtocol {
 
-    public AdmProtocol() {
+    @Inject
+    public AdmProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_GET_DEVICE_STATUS,
                 Command.TYPE_CUSTOM);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new AdmFrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new AdmProtocolEncoder(AdmProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/AdmProtocolDecoder.java b/src/main/java/org/traccar/protocol/AdmProtocolDecoder.java
index 7e3478704..1f940f7e2 100644
--- a/src/main/java/org/traccar/protocol/AdmProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AdmProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/AisProtocol.java b/src/main/java/org/traccar/protocol/AisProtocol.java
index 3b9cad7c8..e792a1d3f 100644
--- a/src/main/java/org/traccar/protocol/AisProtocol.java
+++ b/src/main/java/org/traccar/protocol/AisProtocol.java
@@ -19,13 +19,17 @@ import io.netty.handler.codec.string.StringDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class AisProtocol extends BaseProtocol {
 
-    public AisProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public AisProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new AisProtocolDecoder(AisProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/AisProtocolDecoder.java b/src/main/java/org/traccar/protocol/AisProtocolDecoder.java
index 8970f3d4a..a434e6e33 100644
--- a/src/main/java/org/traccar/protocol/AisProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AisProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitBuffer;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/AlematicsProtocol.java b/src/main/java/org/traccar/protocol/AlematicsProtocol.java
index 8da2356b9..5219607e7 100644
--- a/src/main/java/org/traccar/protocol/AlematicsProtocol.java
+++ b/src/main/java/org/traccar/protocol/AlematicsProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class AlematicsProtocol extends BaseProtocol {
 
-    public AlematicsProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public AlematicsProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new AlematicsFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/AlematicsProtocolDecoder.java b/src/main/java/org/traccar/protocol/AlematicsProtocolDecoder.java
index 25ccf6856..981437191 100644
--- a/src/main/java/org/traccar/protocol/AlematicsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AlematicsProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/AnytrekProtocol.java b/src/main/java/org/traccar/protocol/AnytrekProtocol.java
index 9bd0c9163..5dce15ce1 100644
--- a/src/main/java/org/traccar/protocol/AnytrekProtocol.java
+++ b/src/main/java/org/traccar/protocol/AnytrekProtocol.java
@@ -19,15 +19,19 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 
 import java.nio.ByteOrder;
 
+import jakarta.inject.Inject;
+
 public class AnytrekProtocol extends BaseProtocol {
 
-    public AnytrekProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public AnytrekProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.LITTLE_ENDIAN, 1024, 2, 2, 2, 0, true));
                 pipeline.addLast(new AnytrekProtocolDecoder(AnytrekProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/AnytrekProtocolDecoder.java b/src/main/java/org/traccar/protocol/AnytrekProtocolDecoder.java
index c48f59c90..0f9c2b17a 100644
--- a/src/main/java/org/traccar/protocol/AnytrekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AnytrekProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/ApelProtocol.java b/src/main/java/org/traccar/protocol/ApelProtocol.java
index 382aa16af..550581b85 100644
--- a/src/main/java/org/traccar/protocol/ApelProtocol.java
+++ b/src/main/java/org/traccar/protocol/ApelProtocol.java
@@ -19,14 +19,18 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 
 import java.nio.ByteOrder;
+import jakarta.inject.Inject;
+
 public class ApelProtocol extends BaseProtocol {
 
-    public ApelProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public ApelProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.LITTLE_ENDIAN, 1024, 2, 2, 4, 0, true));
                 pipeline.addLast(new ApelProtocolDecoder(ApelProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/ApelProtocolDecoder.java b/src/main/java/org/traccar/protocol/ApelProtocolDecoder.java
index c95a0366a..97ed7de96 100644
--- a/src/main/java/org/traccar/protocol/ApelProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ApelProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/AplicomProtocol.java b/src/main/java/org/traccar/protocol/AplicomProtocol.java
index 2b9dbf97c..48c628d22 100644
--- a/src/main/java/org/traccar/protocol/AplicomProtocol.java
+++ b/src/main/java/org/traccar/protocol/AplicomProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class AplicomProtocol extends BaseProtocol {
 
-    public AplicomProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public AplicomProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new AplicomFrameDecoder());
                 pipeline.addLast(new AplicomProtocolDecoder(AplicomProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/AplicomProtocolDecoder.java b/src/main/java/org/traccar/protocol/AplicomProtocolDecoder.java
index f11312428..0cd8ca37e 100644
--- a/src/main/java/org/traccar/protocol/AplicomProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AplicomProtocolDecoder.java
@@ -21,8 +21,7 @@ import io.netty.channel.Channel;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
 import org.traccar.helper.Checksum;
@@ -303,7 +302,7 @@ public class AplicomProtocolDecoder extends BaseProtocolDecoder {
             decodeEventData(position, buf, event);
         }
 
-        if (Context.getConfig().getBoolean(Keys.PROTOCOL_CAN.withPrefix(getProtocolName()))
+        if (getConfig().getBoolean(Keys.PROTOCOL_CAN.withPrefix(getProtocolName()))
                 && buf.isReadable() && (selector & 0x1000) != 0 && event == EVENT_DATA) {
             decodeCanData(buf, position);
         }
diff --git a/src/main/java/org/traccar/protocol/AppelloProtocol.java b/src/main/java/org/traccar/protocol/AppelloProtocol.java
index 1ca4168e4..34055d7e4 100644
--- a/src/main/java/org/traccar/protocol/AppelloProtocol.java
+++ b/src/main/java/org/traccar/protocol/AppelloProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class AppelloProtocol extends BaseProtocol {
 
-    public AppelloProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public AppelloProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/AppelloProtocolDecoder.java b/src/main/java/org/traccar/protocol/AppelloProtocolDecoder.java
index 47e329234..8e182b9fb 100644
--- a/src/main/java/org/traccar/protocol/AppelloProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AppelloProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/AquilaProtocol.java b/src/main/java/org/traccar/protocol/AquilaProtocol.java
index 5ca1ec091..bd9c34d08 100644
--- a/src/main/java/org/traccar/protocol/AquilaProtocol.java
+++ b/src/main/java/org/traccar/protocol/AquilaProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class AquilaProtocol extends BaseProtocol {
 
-    public AquilaProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public AquilaProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/AquilaProtocolDecoder.java b/src/main/java/org/traccar/protocol/AquilaProtocolDecoder.java
index 3c43ddf2a..50ff10469 100644
--- a/src/main/java/org/traccar/protocol/AquilaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AquilaProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/Ardi01Protocol.java b/src/main/java/org/traccar/protocol/Ardi01Protocol.java
index f7826430f..5ddbe9d62 100644
--- a/src/main/java/org/traccar/protocol/Ardi01Protocol.java
+++ b/src/main/java/org/traccar/protocol/Ardi01Protocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Ardi01Protocol extends BaseProtocol {
 
-    public Ardi01Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Ardi01Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/Ardi01ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Ardi01ProtocolDecoder.java
index 85e9ecfde..07653623a 100644
--- a/src/main/java/org/traccar/protocol/Ardi01ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Ardi01ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/ArknavProtocol.java b/src/main/java/org/traccar/protocol/ArknavProtocol.java
index 3b485e4a5..20fec296c 100644
--- a/src/main/java/org/traccar/protocol/ArknavProtocol.java
+++ b/src/main/java/org/traccar/protocol/ArknavProtocol.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,19 +21,32 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class ArknavProtocol extends BaseProtocol {
 
-    public ArknavProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public ArknavProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '\r'));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new ArknavProtocolDecoder(ArknavProtocol.this));
             }
         });
+        addServer(new TrackerServer(config, getName(), true) {
+            @Override
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
+                pipeline.addLast(new StringDecoder());
+                pipeline.addLast(new StringEncoder());
+                pipeline.addLast(new ArknavProtocolDecoder(ArknavProtocol.this));
+            }
+        });
+
     }
 
 }
diff --git a/src/main/java/org/traccar/protocol/ArknavProtocolDecoder.java b/src/main/java/org/traccar/protocol/ArknavProtocolDecoder.java
index 4982e02fc..4def9c979 100644
--- a/src/main/java/org/traccar/protocol/ArknavProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ArknavProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/ArknavX8Protocol.java b/src/main/java/org/traccar/protocol/ArknavX8Protocol.java
index a29bc1ad3..a8be6f40c 100644
--- a/src/main/java/org/traccar/protocol/ArknavX8Protocol.java
+++ b/src/main/java/org/traccar/protocol/ArknavX8Protocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class ArknavX8Protocol extends BaseProtocol {
 
-    public ArknavX8Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public ArknavX8Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, ';'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/ArknavX8ProtocolDecoder.java b/src/main/java/org/traccar/protocol/ArknavX8ProtocolDecoder.java
index b570f5423..22c0344d6 100644
--- a/src/main/java/org/traccar/protocol/ArknavX8ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ArknavX8ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/ArmoliProtocol.java b/src/main/java/org/traccar/protocol/ArmoliProtocol.java
index 5f36012af..e9c947ecd 100644
--- a/src/main/java/org/traccar/protocol/ArmoliProtocol.java
+++ b/src/main/java/org/traccar/protocol/ArmoliProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class ArmoliProtocol extends BaseProtocol {
 
-    public ArmoliProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public ArmoliProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, ";;", ";\r", ";"));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/ArmoliProtocolDecoder.java b/src/main/java/org/traccar/protocol/ArmoliProtocolDecoder.java
index 50af039d6..cbed64f76 100644
--- a/src/main/java/org/traccar/protocol/ArmoliProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ArmoliProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.ObdDecoder;
diff --git a/src/main/java/org/traccar/protocol/ArnaviBinaryProtocolDecoder.java b/src/main/java/org/traccar/protocol/ArnaviBinaryProtocolDecoder.java
index e957a6911..0f6b7a33f 100644
--- a/src/main/java/org/traccar/protocol/ArnaviBinaryProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ArnaviBinaryProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/ArnaviProtocol.java b/src/main/java/org/traccar/protocol/ArnaviProtocol.java
index aecb42c8c..962bcce52 100644
--- a/src/main/java/org/traccar/protocol/ArnaviProtocol.java
+++ b/src/main/java/org/traccar/protocol/ArnaviProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class ArnaviProtocol extends BaseProtocol {
 
-    public ArnaviProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public ArnaviProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new ArnaviFrameDecoder());
                 pipeline.addLast(new ArnaviProtocolDecoder(ArnaviProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/ArnaviProtocolDecoder.java b/src/main/java/org/traccar/protocol/ArnaviProtocolDecoder.java
index 68a70c944..50ceea898 100644
--- a/src/main/java/org/traccar/protocol/ArnaviProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ArnaviProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2020 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,11 +15,13 @@
  */
 package org.traccar.protocol;
 
+import com.google.inject.Injector;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
 import org.traccar.Protocol;
 
+import jakarta.inject.Inject;
 import java.net.SocketAddress;
 
 public class ArnaviProtocolDecoder extends BaseProtocolDecoder {
@@ -33,6 +35,12 @@ public class ArnaviProtocolDecoder extends BaseProtocolDecoder {
         binaryProtocolDecoder = new ArnaviBinaryProtocolDecoder(protocol);
     }
 
+    @Inject
+    public void setInjector(Injector injector) {
+        injector.injectMembers(textProtocolDecoder);
+        injector.injectMembers(binaryProtocolDecoder);
+    }
+
     @Override
     protected Object decode(
             Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
diff --git a/src/main/java/org/traccar/protocol/ArnaviTextProtocolDecoder.java b/src/main/java/org/traccar/protocol/ArnaviTextProtocolDecoder.java
index b99869e6e..9d82c9ad5 100644
--- a/src/main/java/org/traccar/protocol/ArnaviTextProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ArnaviTextProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/AstraProtocol.java b/src/main/java/org/traccar/protocol/AstraProtocol.java
index 12b0dfb68..dcc02d10d 100644
--- a/src/main/java/org/traccar/protocol/AstraProtocol.java
+++ b/src/main/java/org/traccar/protocol/AstraProtocol.java
@@ -19,20 +19,24 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class AstraProtocol extends BaseProtocol {
 
-    public AstraProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public AstraProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 1, 2, -3, 0));
                 pipeline.addLast(new AstraProtocolDecoder(AstraProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new AstraProtocolDecoder(AstraProtocol.this));
             }
         });
diff --git a/src/main/java/org/traccar/protocol/AstraProtocolDecoder.java b/src/main/java/org/traccar/protocol/AstraProtocolDecoder.java
index e6f546b9f..366bf9e8b 100644
--- a/src/main/java/org/traccar/protocol/AstraProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AstraProtocolDecoder.java
@@ -21,7 +21,7 @@ import io.netty.channel.Channel;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/At2000Protocol.java b/src/main/java/org/traccar/protocol/At2000Protocol.java
index 5894f3eab..c7e22f142 100644
--- a/src/main/java/org/traccar/protocol/At2000Protocol.java
+++ b/src/main/java/org/traccar/protocol/At2000Protocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class At2000Protocol extends BaseProtocol {
 
-    public At2000Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public At2000Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new At2000FrameDecoder());
                 pipeline.addLast(new At2000ProtocolDecoder(At2000Protocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/At2000ProtocolDecoder.java b/src/main/java/org/traccar/protocol/At2000ProtocolDecoder.java
index 43798eb67..b81ba306d 100644
--- a/src/main/java/org/traccar/protocol/At2000ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/At2000ProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DataConverter;
diff --git a/src/main/java/org/traccar/protocol/AtrackProtocol.java b/src/main/java/org/traccar/protocol/AtrackProtocol.java
index 429708b26..8b86955f4 100644
--- a/src/main/java/org/traccar/protocol/AtrackProtocol.java
+++ b/src/main/java/org/traccar/protocol/AtrackProtocol.java
@@ -18,24 +18,28 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class AtrackProtocol extends BaseProtocol {
 
-    public AtrackProtocol() {
+    @Inject
+    public AtrackProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new AtrackFrameDecoder());
                 pipeline.addLast(new AtrackProtocolEncoder(AtrackProtocol.this));
                 pipeline.addLast(new AtrackProtocolDecoder(AtrackProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new AtrackProtocolEncoder(AtrackProtocol.this));
                 pipeline.addLast(new AtrackProtocolDecoder(AtrackProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/AtrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/AtrackProtocolDecoder.java
index 186b81470..8896dcfb0 100644
--- a/src/main/java/org/traccar/protocol/AtrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AtrackProtocolDecoder.java
@@ -20,8 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
@@ -54,7 +53,7 @@ public class AtrackProtocolDecoder extends BaseProtocolDecoder {
     private static final int MIN_DATA_LENGTH = 40;
 
     private boolean longDate;
-    private final boolean decimalFuel;
+    private boolean decimalFuel;
     private boolean custom;
     private String form;
 
@@ -64,17 +63,20 @@ public class AtrackProtocolDecoder extends BaseProtocolDecoder {
 
     public AtrackProtocolDecoder(Protocol protocol) {
         super(protocol);
+    }
 
-        longDate = Context.getConfig().getBoolean(Keys.PROTOCOL_LONG_DATE.withPrefix(getProtocolName()));
-        decimalFuel = Context.getConfig().getBoolean(Keys.PROTOCOL_DECIMAL_FUEL.withPrefix(getProtocolName()));
+    @Override
+    protected void init() {
+        longDate = getConfig().getBoolean(Keys.PROTOCOL_LONG_DATE.withPrefix(getProtocolName()));
+        decimalFuel = getConfig().getBoolean(Keys.PROTOCOL_DECIMAL_FUEL.withPrefix(getProtocolName()));
 
-        custom = Context.getConfig().getBoolean(Keys.PROTOCOL_CUSTOM.withPrefix(getProtocolName()));
-        form = Context.getConfig().getString(Keys.PROTOCOL_FORM.withPrefix(getProtocolName()));
+        custom = getConfig().getBoolean(Keys.PROTOCOL_CUSTOM.withPrefix(getProtocolName()));
+        form = getConfig().getString(Keys.PROTOCOL_FORM.withPrefix(getProtocolName()));
         if (form != null) {
             custom = true;
         }
 
-        String alarmMapString = Context.getConfig().getString(Keys.PROTOCOL_ALARM_MAP.withPrefix(getProtocolName()));
+        String alarmMapString = getConfig().getString(Keys.PROTOCOL_ALARM_MAP.withPrefix(getProtocolName()));
         if (alarmMapString != null) {
             for (String pair : alarmMapString.split(",")) {
                 if (!pair.isEmpty()) {
@@ -98,7 +100,7 @@ public class AtrackProtocolDecoder extends BaseProtocolDecoder {
         this.form = form;
     }
 
-    private static void sendResponse(Channel channel, SocketAddress remoteAddress, long rawId, int index) {
+    private void sendResponse(Channel channel, SocketAddress remoteAddress, long rawId, int index) {
         if (channel != null) {
             ByteBuf response = Unpooled.buffer(12);
             response.writeShort(0xfe02);
@@ -427,6 +429,208 @@ public class AtrackProtocolDecoder extends BaseProtocolDecoder {
                 case "MP":
                     buf.readUnsignedByte(); // manifold absolute pressure
                     break;
+                case "EO":
+                    position.set(Position.KEY_ODOMETER, UnitsConverter.metersFromMiles(buf.readUnsignedInt()));
+                    break;
+                case "EH":
+                    position.set(Position.KEY_HOURS, buf.readUnsignedInt() * 360000);
+                    break;
+                case "ZO1":
+                    buf.readUnsignedByte(); // brake stroke status
+                    break;
+                case "ZO2":
+                    buf.readUnsignedByte(); // warning indicator status
+                    break;
+                case "ZO3":
+                    buf.readUnsignedByte(); // abs control status
+                    break;
+                case "ZO4":
+                    position.set(Position.KEY_THROTTLE, buf.readUnsignedByte() * 0.4);
+                    break;
+                case "ZO5":
+                    buf.readUnsignedByte(); // parking brake status
+                    break;
+                case "ZO6":
+                    position.set(Position.KEY_OBD_SPEED, buf.readUnsignedByte() * 0.805);
+                    break;
+                case "ZO7":
+                    buf.readUnsignedByte(); // cruise control status
+                    break;
+                case "ZO8":
+                    buf.readUnsignedByte(); // accelector pedal position
+                    break;
+                case "ZO9":
+                    position.set(Position.KEY_ENGINE_LOAD, buf.readUnsignedByte() * 0.5);
+                    break;
+                case "ZO10":
+                    position.set(Position.KEY_FUEL_LEVEL, buf.readUnsignedByte() * 0.5);
+                    break;
+                case "ZO11":
+                    buf.readUnsignedByte(); // engine oil pressure
+                    break;
+                case "ZO12":
+                    buf.readUnsignedByte(); // boost pressure
+                    break;
+                case "ZO13":
+                    buf.readUnsignedByte(); // intake temperature
+                    break;
+                case "ZO14":
+                    position.set(Position.KEY_COOLANT_TEMP, buf.readUnsignedByte());
+                    break;
+                case "ZO15":
+                    buf.readUnsignedByte(); // brake application pressure
+                    break;
+                case "ZO16":
+                    buf.readUnsignedByte(); // brake primary pressure
+                    break;
+                case "ZO17":
+                    buf.readUnsignedByte(); // brake secondary pressure
+                    break;
+                case "ZH1":
+                    buf.readUnsignedShort(); // cargo weight
+                    break;
+                case "ZH2":
+                    position.set(Position.KEY_FUEL_CONSUMPTION, buf.readUnsignedShort() * 16.428 / 3600);
+                    break;
+                case "ZH3":
+                    position.set(Position.KEY_RPM, buf.readUnsignedShort() * 0.25);
+                    break;
+                case "ZL1":
+                    buf.readUnsignedInt(); // fuel used (natural gas)
+                    break;
+                case "ZL2":
+                    position.set(Position.KEY_ODOMETER, buf.readUnsignedInt() * 161);
+                    break;
+                case "ZL3":
+                    buf.readUnsignedInt(); // vehicle hours
+                    break;
+                case "ZL4":
+                    position.set(Position.KEY_HOURS, buf.readUnsignedInt() * 5 * 36000);
+                    break;
+                case "ZS1":
+                    position.set(Position.KEY_VIN, readString(buf));
+                    break;
+                case "JO1":
+                    buf.readUnsignedByte(); // pedals
+                    break;
+                case "JO2":
+                    buf.readUnsignedByte(); // power takeoff device
+                    break;
+                case "JO3":
+                    buf.readUnsignedByte(); // accelector pedal position
+                    break;
+                case "JO4":
+                    position.set(Position.KEY_ENGINE_LOAD, buf.readUnsignedByte());
+                    break;
+                case "JO5":
+                    position.set(Position.KEY_FUEL_LEVEL, buf.readUnsignedByte() * 0.4);
+                    break;
+                case "JO6":
+                    buf.readUnsignedByte(); // fms vehicle interface
+                    break;
+                case "JO7":
+                    buf.readUnsignedByte(); // driver 2
+                    break;
+                case "JO8":
+                    buf.readUnsignedByte(); // driver 1
+                    break;
+                case "JO9":
+                    buf.readUnsignedByte(); // drivers
+                    break;
+                case "JO10":
+                    buf.readUnsignedByte(); // system information
+                    break;
+                case "JO11":
+                    position.set(Position.KEY_COOLANT_TEMP, buf.readUnsignedByte() - 40);
+                    break;
+                case "JO12":
+                    buf.readUnsignedByte(); // pto engaged
+                    break;
+                case "JH1":
+                    position.set(Position.KEY_OBD_SPEED, buf.readUnsignedShort() / 256.0);
+                    break;
+                case "JH2":
+                    position.set(Position.KEY_RPM, buf.readUnsignedShort() * 0.125);
+                    break;
+                case "JH3":
+                case "JH4":
+                case "JH5":
+                case "JH6":
+                case "JH7":
+                    int index = Integer.parseInt(key.substring(2)) - 2;
+                    position.set("axleWeight" + index, buf.readUnsignedShort() * 0.5);
+                    break;
+                case "JH8":
+                    position.set(Position.KEY_ODOMETER_SERVICE, buf.readUnsignedShort() * 5);
+                    break;
+                case "JH9":
+                    buf.readUnsignedShort(); // tachograph speed
+                    break;
+                case "JH10":
+                    buf.readUnsignedShort(); // ambient air temperature
+                    break;
+                case "JH11":
+                    position.set(Position.KEY_FUEL_CONSUMPTION, buf.readUnsignedShort() * 0.05);
+                    break;
+                case "JH12":
+                    buf.readUnsignedShort(); // fuel economy
+                    break;
+                case "JL1":
+                    position.set(Position.KEY_FUEL_USED, buf.readUnsignedInt() * 0.5);
+                    break;
+                case "JL2":
+                    position.set(Position.KEY_HOURS, buf.readUnsignedInt() * 5 * 36000);
+                    break;
+                case "JL3":
+                    position.set(Position.KEY_ODOMETER, buf.readUnsignedInt() * 1000);
+                    break;
+                case "JL4":
+                    position.set(Position.KEY_FUEL_USED, buf.readUnsignedInt() * 0.001);
+                    break;
+                case "JS1":
+                    position.set(Position.KEY_VIN, readString(buf));
+                    break;
+                case "JS2":
+                    readString(buf); // fms version supported
+                    break;
+                case "JS3":
+                    position.set("driver1", readString(buf));
+                    break;
+                case "JS4":
+                    position.set("driver2", readString(buf));
+                    break;
+                case "JN1":
+                    buf.readUnsignedInt(); // cruise control distance
+                    break;
+                case "JN2":
+                    buf.readUnsignedInt(); // excessive idling time
+                    break;
+                case "JN3":
+                    buf.readUnsignedInt(); // excessive idling fuel
+                    break;
+                case "JN4":
+                    buf.readUnsignedInt(); // pto time
+                    break;
+                case "JN5":
+                    buf.readUnsignedInt(); // pto fuel
+                    break;
+                case "IN0":
+                    position.set(Position.KEY_IGNITION, buf.readUnsignedByte() > 0);
+                    break;
+                case "IN1":
+                case "IN2":
+                case "IN3":
+                    position.set(Position.PREFIX_IN + key.charAt(2), buf.readUnsignedByte() > 0);
+                    break;
+                case "HA":
+                    position.set(Position.KEY_ALARM, buf.readUnsignedByte() > 0 ? Position.ALARM_ACCELERATION : null);
+                    break;
+                case "HB":
+                    position.set(Position.KEY_ALARM, buf.readUnsignedByte() > 0 ? Position.ALARM_BRAKING : null);
+                    break;
+                case "HC":
+                    position.set(Position.KEY_ALARM, buf.readUnsignedByte() > 0 ? Position.ALARM_CORNERING : null);
+                    break;
                 default:
                     break;
             }
@@ -524,20 +728,24 @@ public class AtrackProtocolDecoder extends BaseProtocolDecoder {
 
     private List<Position> decodeText(Channel channel, SocketAddress remoteAddress, String sentence) {
 
-        int startIndex = -1;
-        for (int i = 0; i < 4; i++) {
-            startIndex = sentence.indexOf(',', startIndex + 1);
+        int positionIndex = -1;
+        for (int i = 0; i < 5; i++) {
+            positionIndex = sentence.indexOf(',', positionIndex + 1);
         }
-        int endIndex = sentence.indexOf(',', startIndex + 1);
 
-        String imei = sentence.substring(startIndex + 1, endIndex);
-        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
+        String[] headers = sentence.substring(0, positionIndex).split(",");
+        long id = Long.parseLong(headers[2]);
+        int index = Integer.parseInt(headers[3]);
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, headers[4]);
         if (deviceSession == null) {
             return null;
         }
 
+        sendResponse(channel, remoteAddress, id, index);
+
         List<Position> positions = new LinkedList<>();
-        String[] lines = sentence.substring(endIndex + 1).split("\r\n");
+        String[] lines = sentence.substring(positionIndex + 1).split("\r\n");
 
         for (String line : lines) {
             Position position = decodeTextLine(deviceSession, line);
@@ -626,7 +834,7 @@ public class AtrackProtocolDecoder extends BaseProtocolDecoder {
 
             getLastLocation(position, new Date(time * 1000));
 
-            position.set(Position.KEY_IMAGE, Context.getMediaManager().writeFile(String.valueOf(id), photo, "jpg"));
+            position.set(Position.KEY_IMAGE, writeMediaFile(String.valueOf(id), photo, "jpg"));
             photo.release();
             photo = null;
 
diff --git a/src/main/java/org/traccar/protocol/AuroProtocol.java b/src/main/java/org/traccar/protocol/AuroProtocol.java
index b8ebdaa75..728c8e23c 100644
--- a/src/main/java/org/traccar/protocol/AuroProtocol.java
+++ b/src/main/java/org/traccar/protocol/AuroProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class AuroProtocol extends BaseProtocol {
 
-    public AuroProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public AuroProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/AuroProtocolDecoder.java b/src/main/java/org/traccar/protocol/AuroProtocolDecoder.java
index d7916147b..4489cf27e 100644
--- a/src/main/java/org/traccar/protocol/AuroProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AuroProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/AustinNbProtocol.java b/src/main/java/org/traccar/protocol/AustinNbProtocol.java
index 32bfc0aae..467deff53 100644
--- a/src/main/java/org/traccar/protocol/AustinNbProtocol.java
+++ b/src/main/java/org/traccar/protocol/AustinNbProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class AustinNbProtocol extends BaseProtocol {
 
-    public AustinNbProtocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public AustinNbProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new AustinNbProtocolDecoder(AustinNbProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/AustinNbProtocolDecoder.java b/src/main/java/org/traccar/protocol/AustinNbProtocolDecoder.java
index dc6f3d280..b07b94e20 100644
--- a/src/main/java/org/traccar/protocol/AustinNbProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AustinNbProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2018 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,14 +17,13 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
 import org.traccar.model.Position;
 
 import java.net.SocketAddress;
-import java.util.TimeZone;
 import java.util.regex.Pattern;
 
 public class AustinNbProtocolDecoder extends BaseProtocolDecoder {
@@ -64,7 +63,7 @@ public class AustinNbProtocolDecoder extends BaseProtocolDecoder {
         Position position = new Position(getProtocolName());
         position.setDeviceId(deviceSession.getDeviceId());
 
-        position.setTime(parser.nextDateTime(Parser.DateTimeFormat.YMD_HMS, TimeZone.getDefault().getID()));
+        position.setTime(parser.nextDateTime());
 
         position.setValid(true);
         position.setLatitude(Double.parseDouble(parser.next().replace(',', '.')));
diff --git a/src/main/java/org/traccar/protocol/AutoFonProtocol.java b/src/main/java/org/traccar/protocol/AutoFonProtocol.java
index 08b5edc7d..75bd28d5e 100644
--- a/src/main/java/org/traccar/protocol/AutoFonProtocol.java
+++ b/src/main/java/org/traccar/protocol/AutoFonProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class AutoFonProtocol extends BaseProtocol {
 
-    public AutoFonProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public AutoFonProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new AutoFonFrameDecoder());
                 pipeline.addLast(new AutoFonProtocolDecoder(AutoFonProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/AutoFonProtocolDecoder.java b/src/main/java/org/traccar/protocol/AutoFonProtocolDecoder.java
index aa05ca2d7..dd6a0e33c 100644
--- a/src/main/java/org/traccar/protocol/AutoFonProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AutoFonProtocolDecoder.java
@@ -21,7 +21,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/AutoGradeProtocol.java b/src/main/java/org/traccar/protocol/AutoGradeProtocol.java
index c6dbb681e..69d9fb4e6 100644
--- a/src/main/java/org/traccar/protocol/AutoGradeProtocol.java
+++ b/src/main/java/org/traccar/protocol/AutoGradeProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class AutoGradeProtocol extends BaseProtocol {
 
-    public AutoGradeProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public AutoGradeProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, ')'));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/AutoGradeProtocolDecoder.java b/src/main/java/org/traccar/protocol/AutoGradeProtocolDecoder.java
index 5052450b5..f52ac81c9 100644
--- a/src/main/java/org/traccar/protocol/AutoGradeProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AutoGradeProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/AutoTrackProtocol.java b/src/main/java/org/traccar/protocol/AutoTrackProtocol.java
index 6aa7558bf..df489de3c 100644
--- a/src/main/java/org/traccar/protocol/AutoTrackProtocol.java
+++ b/src/main/java/org/traccar/protocol/AutoTrackProtocol.java
@@ -19,14 +19,18 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 
 import java.nio.ByteOrder;
+import jakarta.inject.Inject;
+
 public class AutoTrackProtocol extends BaseProtocol {
 
-    public AutoTrackProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public AutoTrackProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.LITTLE_ENDIAN, 1024, 5, 2, 2, 0, true));
                 pipeline.addLast(new AutoTrackProtocolDecoder(AutoTrackProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/AutoTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/AutoTrackProtocolDecoder.java
index da7f6b5a6..c072e55d0 100644
--- a/src/main/java/org/traccar/protocol/AutoTrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AutoTrackProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/AvemaProtocol.java b/src/main/java/org/traccar/protocol/AvemaProtocol.java
index dbfab4dea..0eeee41b8 100644
--- a/src/main/java/org/traccar/protocol/AvemaProtocol.java
+++ b/src/main/java/org/traccar/protocol/AvemaProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class AvemaProtocol extends BaseProtocol {
 
-    public AvemaProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public AvemaProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/AvemaProtocolDecoder.java b/src/main/java/org/traccar/protocol/AvemaProtocolDecoder.java
index 37836ad5f..0793975df 100644
--- a/src/main/java/org/traccar/protocol/AvemaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AvemaProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/Avl301Protocol.java b/src/main/java/org/traccar/protocol/Avl301Protocol.java
index 71fc7cb26..452bc1501 100644
--- a/src/main/java/org/traccar/protocol/Avl301Protocol.java
+++ b/src/main/java/org/traccar/protocol/Avl301Protocol.java
@@ -19,13 +19,17 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Avl301Protocol extends BaseProtocol {
 
-    public Avl301Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Avl301Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(256, 2, 1, -3, 0));
                 pipeline.addLast(new Avl301ProtocolDecoder(Avl301Protocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/Avl301ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Avl301ProtocolDecoder.java
index f6b7db2d6..8f036fc29 100644
--- a/src/main/java/org/traccar/protocol/Avl301ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Avl301ProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
@@ -125,7 +125,7 @@ public class Avl301ProtocolDecoder extends BaseProtocolDecoder {
             }
 
             position.setNetwork(new Network(
-                    CellTower.fromLacCid(buf.readUnsignedShort(), buf.readUnsignedMedium())));
+                    CellTower.fromLacCid(getConfig(), buf.readUnsignedShort(), buf.readUnsignedMedium())));
 
             position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
             int flags = buf.readUnsignedByte();
diff --git a/src/main/java/org/traccar/protocol/B2316Protocol.java b/src/main/java/org/traccar/protocol/B2316Protocol.java
index 7f08870ce..e0a6821d8 100644
--- a/src/main/java/org/traccar/protocol/B2316Protocol.java
+++ b/src/main/java/org/traccar/protocol/B2316Protocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class B2316Protocol extends BaseProtocol {
 
-    public B2316Protocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public B2316Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new B2316ProtocolDecoder(B2316Protocol.this));
diff --git a/src/main/java/org/traccar/protocol/B2316ProtocolDecoder.java b/src/main/java/org/traccar/protocol/B2316ProtocolDecoder.java
index 854107a20..b0a5411f7 100644
--- a/src/main/java/org/traccar/protocol/B2316ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/B2316ProtocolDecoder.java
@@ -17,16 +17,16 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.model.CellTower;
 import org.traccar.model.Network;
 import org.traccar.model.Position;
 import org.traccar.model.WifiAccessPoint;
 
-import javax.json.Json;
-import javax.json.JsonArray;
-import javax.json.JsonObject;
+import jakarta.json.Json;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
 import java.io.StringReader;
 import java.net.SocketAddress;
 import java.util.Date;
@@ -116,8 +116,9 @@ public class B2316ProtocolDecoder extends BaseProtocolDecoder {
                 String[] points = item.getString("wi").split(";");
                 for (String point : points) {
                     String[] values = point.split(",");
+                    String mac = values[0].replaceAll("(..)", "$1:");
                     network.addWifiAccessPoint(WifiAccessPoint.from(
-                            values[0].replaceAll("(..)", "$1:"), Integer.parseInt(values[1])));
+                            mac.substring(0, mac.length() - 1), Integer.parseInt(values[1])));
                 }
             }
 
diff --git a/src/main/java/org/traccar/protocol/BceProtocol.java b/src/main/java/org/traccar/protocol/BceProtocol.java
index c5e1dd04c..5e1c10abc 100644
--- a/src/main/java/org/traccar/protocol/BceProtocol.java
+++ b/src/main/java/org/traccar/protocol/BceProtocol.java
@@ -18,16 +18,20 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class BceProtocol extends BaseProtocol {
 
-    public BceProtocol() {
+    @Inject
+    public BceProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_OUTPUT_CONTROL);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new BceFrameDecoder());
                 pipeline.addLast(new BceProtocolEncoder(BceProtocol.this));
                 pipeline.addLast(new BceProtocolDecoder(BceProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/BceProtocolDecoder.java b/src/main/java/org/traccar/protocol/BceProtocolDecoder.java
index 535827f3c..2c9459584 100644
--- a/src/main/java/org/traccar/protocol/BceProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/BceProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/BlackKiteProtocol.java b/src/main/java/org/traccar/protocol/BlackKiteProtocol.java
index 617a24d7a..d584af5a1 100644
--- a/src/main/java/org/traccar/protocol/BlackKiteProtocol.java
+++ b/src/main/java/org/traccar/protocol/BlackKiteProtocol.java
@@ -19,13 +19,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class BlackKiteProtocol extends BaseProtocol {
 
-    public BlackKiteProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public BlackKiteProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new GalileoFrameDecoder());
                 pipeline.addLast(new BlackKiteProtocolDecoder(BlackKiteProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/BlackKiteProtocolDecoder.java b/src/main/java/org/traccar/protocol/BlackKiteProtocolDecoder.java
index 474ceabdc..64fc439c4 100644
--- a/src/main/java/org/traccar/protocol/BlackKiteProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/BlackKiteProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/BlueProtocol.java b/src/main/java/org/traccar/protocol/BlueProtocol.java
index d5dc5c421..821111ad7 100644
--- a/src/main/java/org/traccar/protocol/BlueProtocol.java
+++ b/src/main/java/org/traccar/protocol/BlueProtocol.java
@@ -19,13 +19,17 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class BlueProtocol extends BaseProtocol {
 
-    public BlueProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public BlueProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 1, 2, -2, 0));
                 pipeline.addLast(new BlueProtocolDecoder(BlueProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/BlueProtocolDecoder.java b/src/main/java/org/traccar/protocol/BlueProtocolDecoder.java
index f35ac6fbe..db59c564d 100644
--- a/src/main/java/org/traccar/protocol/BlueProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/BlueProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/BoxProtocol.java b/src/main/java/org/traccar/protocol/BoxProtocol.java
index dfea15938..ac1ba7cae 100644
--- a/src/main/java/org/traccar/protocol/BoxProtocol.java
+++ b/src/main/java/org/traccar/protocol/BoxProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class BoxProtocol extends BaseProtocol {
 
-    public BoxProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public BoxProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '\r'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/BoxProtocolDecoder.java b/src/main/java/org/traccar/protocol/BoxProtocolDecoder.java
index 853fa8f81..8e92b69fb 100644
--- a/src/main/java/org/traccar/protocol/BoxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/BoxProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/BstplProtocol.java b/src/main/java/org/traccar/protocol/BstplProtocol.java
new file mode 100644
index 000000000..ccedcf3d9
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/BstplProtocol.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.handler.codec.string.StringDecoder;
+import io.netty.handler.codec.string.StringEncoder;
+import org.traccar.BaseProtocol;
+import org.traccar.CharacterDelimiterFrameDecoder;
+import org.traccar.PipelineBuilder;
+import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
+
+public class BstplProtocol extends BaseProtocol {
+
+    @Inject
+    public BstplProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
+            @Override
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
+                pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '#'));
+                pipeline.addLast(new StringEncoder());
+                pipeline.addLast(new StringDecoder());
+                pipeline.addLast(new BstplProtocolDecoder(BstplProtocol.this));
+            }
+        });
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/BstplProtocolDecoder.java b/src/main/java/org/traccar/protocol/BstplProtocolDecoder.java
new file mode 100644
index 000000000..15c114642
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/BstplProtocolDecoder.java
@@ -0,0 +1,137 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.Protocol;
+import org.traccar.helper.Parser;
+import org.traccar.helper.PatternBuilder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+import org.traccar.session.DeviceSession;
+
+import java.net.SocketAddress;
+import java.util.regex.Pattern;
+
+public class BstplProtocolDecoder extends BaseProtocolDecoder {
+
+    public BstplProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    private static final Pattern PATTERN = new PatternBuilder()
+            .text("BSTPL$")                      // header
+            .number("(d),")                      // type
+            .expression("([^,]+),")              // device id
+            .expression("([AV]),")               // validity
+            .number("(dd)(dd)(dd),")             // date (ddmmyy)
+            .number("(dd)(dd)(dd),")             // time (hhmmss)
+            .number("(d+.d+),([0NS]),")          // latitude
+            .number("(d+.d+),([0EW]),")          // longitude
+            .number("(d+),")                     // speed
+            .number("(d+),")                     // odometer
+            .number("(d+),")                     // course
+            .number("(d+),")                     // satellites
+            .number("([01]),")                   // box open
+            .number("(d+),")                     // rssi
+            .number("([01]),")                   // charge
+            .number("([01]),")                   // ignition
+            .number("([01]),")                   // engine
+            .number("([01]),")                   // locked
+            .number("(d+.d+),")                  // adc
+            .number("d+,")                       // reserved
+            .number("(d+.d+),")                  // battery
+            .expression("([^,]+),")              // firmware
+            .number("([^,]+),")                  // iccid
+            .number("(d+.d+)")                   // power
+            .compile();
+
+    private String decodeAlarm(int value) {
+        switch (value) {
+            case 4:
+                return Position.ALARM_LOW_BATTERY;
+            case 5:
+                return Position.ALARM_ACCELERATION;
+            case 6:
+                return Position.ALARM_BRAKING;
+            case 7:
+                return Position.ALARM_OVERSPEED;
+            case 9:
+                return Position.ALARM_SOS;
+            default:
+                return null;
+        }
+    }
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        Parser parser = new Parser(PATTERN, (String) msg);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        int type = parser.nextInt();
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+        if (deviceSession == null) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        position.set(Position.KEY_ALARM, decodeAlarm(type));
+
+        position.setValid(parser.next().equals("A"));
+        position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
+        position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
+        position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
+        position.setSpeed(UnitsConverter.knotsFromKph(parser.nextInt()));
+
+        position.set(Position.KEY_ODOMETER, parser.nextInt() * 1000L);
+
+        position.setCourse(parser.nextInt());
+
+        position.set(Position.KEY_SATELLITES, parser.nextInt());
+
+        boolean boxOpen = parser.nextInt() > 0;
+        if (type == 8 && boxOpen) {
+            position.set(Position.KEY_ALARM, Position.ALARM_TAMPERING);
+        }
+        position.set("boxOpen", boxOpen);
+
+        position.set(Position.KEY_RSSI, parser.nextInt());
+
+        boolean charge = parser.nextInt() > 0;
+        if (type == 3) {
+            position.set(Position.KEY_ALARM, charge ? Position.ALARM_POWER_RESTORED : Position.ALARM_POWER_CUT);
+        }
+        position.set(Position.KEY_CHARGE, charge);
+
+        position.set(Position.KEY_IGNITION, parser.nextInt() > 0);
+        position.set("engine", parser.nextInt() > 0);
+        position.set(Position.KEY_BLOCKED, parser.nextInt() > 0);
+        position.set(Position.PREFIX_ADC + 1, parser.nextDouble());
+        position.set(Position.KEY_BATTERY, parser.nextDouble());
+        position.set(Position.KEY_ICCID, parser.next());
+        position.set(Position.KEY_POWER, parser.nextDouble());
+
+        return position;
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/C2stekProtocol.java b/src/main/java/org/traccar/protocol/C2stekProtocol.java
index 804621fd3..5370ea762 100644
--- a/src/main/java/org/traccar/protocol/C2stekProtocol.java
+++ b/src/main/java/org/traccar/protocol/C2stekProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class C2stekProtocol extends BaseProtocol {
 
-    public C2stekProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public C2stekProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, false, "$AP"));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/C2stekProtocolDecoder.java b/src/main/java/org/traccar/protocol/C2stekProtocolDecoder.java
index e735c67a1..aef158fc7 100644
--- a/src/main/java/org/traccar/protocol/C2stekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/C2stekProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
@@ -49,10 +49,12 @@ public class C2stekProtocolDecoder extends BaseProtocolDecoder {
             .number("(-?d+.d+)#")                // altitude
             .number("(d+)#")                     // battery
             .number("d+#")                       // geo area alarm
-            .number("(x+)#")                     // alarm
-            .number("([01])?")                   // armed
+            .number("(x+)")                      // alarm
+            .groupBegin()
+            .number("#([01])?")                  // armed
             .number("([01])")                    // door
             .number("([01])#")                   // ignition
+            .groupEnd("?")
             .any()
             .text("$AP")
             .compile();
@@ -114,8 +116,10 @@ public class C2stekProtocolDecoder extends BaseProtocolDecoder {
         if (parser.hasNext()) {
             position.set(Position.KEY_ARMED, parser.nextInt() > 0);
         }
-        position.set(Position.KEY_DOOR, parser.nextInt() > 0);
-        position.set(Position.KEY_IGNITION, parser.nextInt() > 0);
+        if (parser.hasNext(2)) {
+            position.set(Position.KEY_DOOR, parser.nextInt() > 0);
+            position.set(Position.KEY_IGNITION, parser.nextInt() > 0);
+        }
 
         return position;
     }
diff --git a/src/main/java/org/traccar/protocol/CalAmpProtocol.java b/src/main/java/org/traccar/protocol/CalAmpProtocol.java
index 232e72a8c..06df6e196 100644
--- a/src/main/java/org/traccar/protocol/CalAmpProtocol.java
+++ b/src/main/java/org/traccar/protocol/CalAmpProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class CalAmpProtocol extends BaseProtocol {
 
-    public CalAmpProtocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public CalAmpProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CalAmpProtocolDecoder(CalAmpProtocol.this));
             }
         });
diff --git a/src/main/java/org/traccar/protocol/CalAmpProtocolDecoder.java b/src/main/java/org/traccar/protocol/CalAmpProtocolDecoder.java
index 59b1fdf21..57f9c69ae 100644
--- a/src/main/java/org/traccar/protocol/CalAmpProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CalAmpProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/CarTrackProtocol.java b/src/main/java/org/traccar/protocol/CarTrackProtocol.java
index e340fba25..366f32034 100644
--- a/src/main/java/org/traccar/protocol/CarTrackProtocol.java
+++ b/src/main/java/org/traccar/protocol/CarTrackProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class CarTrackProtocol extends BaseProtocol {
 
-    public CarTrackProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public CarTrackProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, "##"));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/CarTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/CarTrackProtocolDecoder.java
index ce3345826..3f5418549 100644
--- a/src/main/java/org/traccar/protocol/CarTrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CarTrackProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/CarcellProtocol.java b/src/main/java/org/traccar/protocol/CarcellProtocol.java
index f08ab3bd9..7ae8159d5 100644
--- a/src/main/java/org/traccar/protocol/CarcellProtocol.java
+++ b/src/main/java/org/traccar/protocol/CarcellProtocol.java
@@ -21,17 +21,21 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class CarcellProtocol extends BaseProtocol {
 
-    public CarcellProtocol() {
+    @Inject
+    public CarcellProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_ENGINE_RESUME);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '\r'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/CarcellProtocolDecoder.java b/src/main/java/org/traccar/protocol/CarcellProtocolDecoder.java
index ec640ba71..54ae068fb 100644
--- a/src/main/java/org/traccar/protocol/CarcellProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CarcellProtocolDecoder.java
@@ -20,7 +20,7 @@ import java.util.regex.Pattern;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.Parser.CoordinateFormat;
diff --git a/src/main/java/org/traccar/protocol/CarscopProtocol.java b/src/main/java/org/traccar/protocol/CarscopProtocol.java
index 2c754a97f..e904c01c5 100644
--- a/src/main/java/org/traccar/protocol/CarscopProtocol.java
+++ b/src/main/java/org/traccar/protocol/CarscopProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class CarscopProtocol extends BaseProtocol {
 
-    public CarscopProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public CarscopProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '^'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/CarscopProtocolDecoder.java b/src/main/java/org/traccar/protocol/CarscopProtocolDecoder.java
index 161666adc..f13a1d0eb 100644
--- a/src/main/java/org/traccar/protocol/CarscopProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CarscopProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/CastelProtocol.java b/src/main/java/org/traccar/protocol/CastelProtocol.java
index 44c52d68f..74a9e9ca1 100644
--- a/src/main/java/org/traccar/protocol/CastelProtocol.java
+++ b/src/main/java/org/traccar/protocol/CastelProtocol.java
@@ -19,26 +19,30 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
 import java.nio.ByteOrder;
+import jakarta.inject.Inject;
+
 public class CastelProtocol extends BaseProtocol {
 
-    public CastelProtocol() {
+    @Inject
+    public CastelProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_ENGINE_RESUME);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.LITTLE_ENDIAN, 1024, 2, 2, -4, 0, true));
                 pipeline.addLast(new CastelProtocolEncoder(CastelProtocol.this));
                 pipeline.addLast(new CastelProtocolDecoder(CastelProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CastelProtocolEncoder(CastelProtocol.this));
                 pipeline.addLast(new CastelProtocolDecoder(CastelProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/CastelProtocolDecoder.java b/src/main/java/org/traccar/protocol/CastelProtocolDecoder.java
index 23401b5ee..566d856bb 100644
--- a/src/main/java/org/traccar/protocol/CastelProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CastelProtocolDecoder.java
@@ -16,11 +16,10 @@
 package org.traccar.protocol;
 
 import io.netty.buffer.ByteBuf;
-import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -160,6 +159,9 @@ public class CastelProtocolDecoder extends BaseProtocolDecoder {
 
         for (int i = 0; i < count; i++) {
             int value;
+            if (!PID_LENGTH_MAP.containsKey(pids[i])) {
+                throw new RuntimeException(String.format("Unknown PID 0x%02x", pids[i]));
+            }
             switch (PID_LENGTH_MAP.get(pids[i])) {
                 case 1:
                     value = buf.readUnsignedByte();
@@ -281,15 +283,27 @@ public class CastelProtocolDecoder extends BaseProtocolDecoder {
             case 0x0C:
                 position.set(Position.KEY_ALARM, Position.ALARM_CORNERING);
                 break;
+            case 0x0D:
+                position.set(Position.KEY_ALARM, Position.ALARM_FATIGUE_DRIVING);
+                break;
             case 0x0E:
                 position.set(Position.KEY_ALARM, Position.ALARM_POWER_OFF);
                 break;
+            case 0x11:
+                position.set(Position.KEY_ALARM, Position.ALARM_ACCIDENT);
+                break;
+            case 0x12:
+                position.set(Position.KEY_ALARM, Position.ALARM_TAMPERING);
+                break;
             case 0x16:
                 position.set(Position.KEY_IGNITION, true);
                 break;
             case 0x17:
                 position.set(Position.KEY_IGNITION, false);
                 break;
+            case 0x1C:
+                position.set(Position.KEY_ALARM, Position.ALARM_VIBRATION);
+                break;
             default:
                 break;
         }
@@ -356,9 +370,9 @@ public class CastelProtocolDecoder extends BaseProtocolDecoder {
                     int alarmCount = buf.readUnsignedByte();
                     for (int i = 0; i < alarmCount; i++) {
                         if (buf.readUnsignedByte() != 0) {
-                            int alarm = buf.readUnsignedByte();
+                            int event = buf.readUnsignedByte();
                             for (Position p : positions) {
-                                decodeAlarm(p, alarm);
+                                decodeAlarm(p, event);
                             }
                             buf.readUnsignedShortLE(); // description
                             buf.readUnsignedShortLE(); // threshold
@@ -418,12 +432,25 @@ public class CastelProtocolDecoder extends BaseProtocolDecoder {
                 return position;
 
             case MSG_SC_DTCS_PASSENGER:
+            case MSG_SC_DTCS_COMMERCIAL:
                 position = createPosition(deviceSession);
 
                 decodeStat(position, buf);
 
                 buf.readUnsignedByte(); // flag
-                position.add(ObdDecoder.decodeCodes(ByteBufUtil.hexDump(buf.readSlice(buf.readUnsignedByte()))));
+
+                count = buf.readUnsignedByte();
+                StringBuilder codes = new StringBuilder();
+                for (int i = 0; i < count; i++) {
+                    if (type == MSG_SC_DTCS_COMMERCIAL) {
+                        codes.append(ObdDecoder.decodeCode(buf.readUnsignedShortLE()));
+                        buf.readUnsignedByte(); // attribute
+                        buf.readUnsignedByte(); // occurrence
+                    } else {
+                        codes.append(ObdDecoder.decodeCode(buf.readUnsignedShortLE()));
+                    }
+                }
+                position.set(Position.KEY_DTCS, codes.toString().trim());
 
                 return position;
 
@@ -443,7 +470,7 @@ public class CastelProtocolDecoder extends BaseProtocolDecoder {
                 decodeStat(position, buf);
 
                 position.setNetwork(new Network(
-                        CellTower.fromLacCid(buf.readUnsignedShortLE(), buf.readUnsignedShortLE())));
+                        CellTower.fromLacCid(getConfig(), buf.readUnsignedShortLE(), buf.readUnsignedShortLE())));
 
                 return position;
 
@@ -499,7 +526,7 @@ public class CastelProtocolDecoder extends BaseProtocolDecoder {
                 buf.readUnsignedByte(); // additional flags
 
                 position.setNetwork(new Network(
-                        CellTower.fromLacCid(buf.readUnsignedShortLE(), buf.readUnsignedShortLE())));
+                        CellTower.fromLacCid(getConfig(), buf.readUnsignedShortLE(), buf.readUnsignedShortLE())));
 
                 positions.add(position);
             }
diff --git a/src/main/java/org/traccar/protocol/CastelProtocolEncoder.java b/src/main/java/org/traccar/protocol/CastelProtocolEncoder.java
index dc694da28..61dde3e80 100644
--- a/src/main/java/org/traccar/protocol/CastelProtocolEncoder.java
+++ b/src/main/java/org/traccar/protocol/CastelProtocolEncoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2018 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,10 +18,9 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import org.traccar.BaseProtocolEncoder;
-import org.traccar.Context;
+import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
 import org.traccar.model.Command;
-import org.traccar.Protocol;
 
 import java.nio.charset.StandardCharsets;
 
@@ -34,7 +33,7 @@ public class CastelProtocolEncoder extends BaseProtocolEncoder {
     private ByteBuf encodeContent(long deviceId, short type, ByteBuf content) {
 
         ByteBuf buf = Unpooled.buffer(0);
-        String uniqueId = Context.getIdentityManager().getById(deviceId).getUniqueId();
+        String uniqueId = getUniqueId(deviceId);
 
         buf.writeByte('@');
         buf.writeByte('@');
diff --git a/src/main/java/org/traccar/protocol/CautelaProtocol.java b/src/main/java/org/traccar/protocol/CautelaProtocol.java
index 452bdf8d4..067345f49 100644
--- a/src/main/java/org/traccar/protocol/CautelaProtocol.java
+++ b/src/main/java/org/traccar/protocol/CautelaProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class CautelaProtocol extends BaseProtocol {
 
-    public CautelaProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public CautelaProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/CautelaProtocolDecoder.java b/src/main/java/org/traccar/protocol/CautelaProtocolDecoder.java
index bddf19b41..37f733ac1 100644
--- a/src/main/java/org/traccar/protocol/CautelaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CautelaProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/CellocatorProtocol.java b/src/main/java/org/traccar/protocol/CellocatorProtocol.java
index d910877cf..e3325c8b7 100644
--- a/src/main/java/org/traccar/protocol/CellocatorProtocol.java
+++ b/src/main/java/org/traccar/protocol/CellocatorProtocol.java
@@ -18,24 +18,28 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class CellocatorProtocol extends BaseProtocol {
 
-    public CellocatorProtocol() {
+    @Inject
+    public CellocatorProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_OUTPUT_CONTROL);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CellocatorFrameDecoder());
                 pipeline.addLast(new CellocatorProtocolEncoder(CellocatorProtocol.this));
                 pipeline.addLast(new CellocatorProtocolDecoder(CellocatorProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CellocatorProtocolEncoder(CellocatorProtocol.this));
                 pipeline.addLast(new CellocatorProtocolDecoder(CellocatorProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/CellocatorProtocolDecoder.java b/src/main/java/org/traccar/protocol/CellocatorProtocolDecoder.java
index 09bd3572f..3573a95ca 100644
--- a/src/main/java/org/traccar/protocol/CellocatorProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CellocatorProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2013 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -120,13 +120,15 @@ public class CellocatorProtocolDecoder extends BaseProtocolDecoder {
 
         buf.readUnsignedByte(); // operator / configuration flags
         buf.readUnsignedByte(); // reason data
-        position.set(Position.KEY_ALARM, decodeAlarm(buf.readUnsignedByte()));
+        short event = buf.readUnsignedByte();
+        position.set(Position.KEY_ALARM, decodeAlarm(event));
+        position.set(Position.KEY_EVENT, event);
 
         position.set("mode", buf.readUnsignedByte());
 
-        long input = buf.readUnsignedIntLE();
+        long input = buf.readUnsignedInt();
+        position.set(Position.KEY_IGNITION, BitUtil.check(input, 3 * 8 + 5));
         position.set(Position.KEY_DOOR, BitUtil.check(input, 3 * 8));
-        position.set(Position.KEY_IGNITION, BitUtil.check(input, 2 * 8 + 7));
         position.set(Position.KEY_CHARGE, BitUtil.check(input, 7));
         position.set(Position.KEY_INPUT, input);
 
diff --git a/src/main/java/org/traccar/protocol/CguardProtocol.java b/src/main/java/org/traccar/protocol/CguardProtocol.java
index 9157ca35c..c0fc9582a 100644
--- a/src/main/java/org/traccar/protocol/CguardProtocol.java
+++ b/src/main/java/org/traccar/protocol/CguardProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class CguardProtocol extends BaseProtocol {
 
-    public CguardProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public CguardProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/CguardProtocolDecoder.java b/src/main/java/org/traccar/protocol/CguardProtocolDecoder.java
index d934921f1..90f8e0caf 100644
--- a/src/main/java/org/traccar/protocol/CguardProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CguardProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/CityeasyProtocol.java b/src/main/java/org/traccar/protocol/CityeasyProtocol.java
index 8ab4ce93a..60ed5d135 100644
--- a/src/main/java/org/traccar/protocol/CityeasyProtocol.java
+++ b/src/main/java/org/traccar/protocol/CityeasyProtocol.java
@@ -19,19 +19,23 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class CityeasyProtocol extends BaseProtocol {
 
-    public CityeasyProtocol() {
+    @Inject
+    public CityeasyProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_POSITION_SINGLE,
                 Command.TYPE_POSITION_PERIODIC,
                 Command.TYPE_POSITION_STOP,
                 Command.TYPE_SET_TIMEZONE);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 2, 2, -4, 0));
                 pipeline.addLast(new CityeasyProtocolEncoder(CityeasyProtocol.this));
                 pipeline.addLast(new CityeasyProtocolDecoder(CityeasyProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/CityeasyProtocolDecoder.java b/src/main/java/org/traccar/protocol/CityeasyProtocolDecoder.java
index 9c4c7e11d..1b5eb55d4 100644
--- a/src/main/java/org/traccar/protocol/CityeasyProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CityeasyProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/ContinentalProtocol.java b/src/main/java/org/traccar/protocol/ContinentalProtocol.java
index bc7928fba..9567374fd 100644
--- a/src/main/java/org/traccar/protocol/ContinentalProtocol.java
+++ b/src/main/java/org/traccar/protocol/ContinentalProtocol.java
@@ -19,13 +19,17 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class ContinentalProtocol extends BaseProtocol {
 
-    public ContinentalProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public ContinentalProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 2, 2, -4, 0));
                 pipeline.addLast(new ContinentalProtocolDecoder(ContinentalProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/ContinentalProtocolDecoder.java b/src/main/java/org/traccar/protocol/ContinentalProtocolDecoder.java
index 471afa0d6..280871e1e 100644
--- a/src/main/java/org/traccar/protocol/ContinentalProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ContinentalProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/CradlepointProtocol.java b/src/main/java/org/traccar/protocol/CradlepointProtocol.java
index 4a09e0311..220db0747 100644
--- a/src/main/java/org/traccar/protocol/CradlepointProtocol.java
+++ b/src/main/java/org/traccar/protocol/CradlepointProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class CradlepointProtocol extends BaseProtocol {
 
-    public CradlepointProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public CradlepointProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/CradlepointProtocolDecoder.java b/src/main/java/org/traccar/protocol/CradlepointProtocolDecoder.java
index a282131ce..924603291 100644
--- a/src/main/java/org/traccar/protocol/CradlepointProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CradlepointProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/DingtekProtocol.java b/src/main/java/org/traccar/protocol/DingtekProtocol.java
index cf2a6c0f5..ab3e32fdb 100644
--- a/src/main/java/org/traccar/protocol/DingtekProtocol.java
+++ b/src/main/java/org/traccar/protocol/DingtekProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class DingtekProtocol extends BaseProtocol {
 
-    public DingtekProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public DingtekProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new DingtekFrameDecoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/DingtekProtocolDecoder.java b/src/main/java/org/traccar/protocol/DingtekProtocolDecoder.java
index 98fe4b7b3..580741ec9 100644
--- a/src/main/java/org/traccar/protocol/DingtekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/DingtekProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DataConverter;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/DishaProtocol.java b/src/main/java/org/traccar/protocol/DishaProtocol.java
index 38f49cc05..0a582731d 100644
--- a/src/main/java/org/traccar/protocol/DishaProtocol.java
+++ b/src/main/java/org/traccar/protocol/DishaProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class DishaProtocol extends BaseProtocol {
 
-    public DishaProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public DishaProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/DishaProtocolDecoder.java b/src/main/java/org/traccar/protocol/DishaProtocolDecoder.java
index 3223988ab..1327e7a6c 100644
--- a/src/main/java/org/traccar/protocol/DishaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/DishaProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/DmtHttpProtocol.java b/src/main/java/org/traccar/protocol/DmtHttpProtocol.java
index 34568128f..d15bfa1ca 100644
--- a/src/main/java/org/traccar/protocol/DmtHttpProtocol.java
+++ b/src/main/java/org/traccar/protocol/DmtHttpProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.http.HttpResponseEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class DmtHttpProtocol extends BaseProtocol {
 
-    public DmtHttpProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public DmtHttpProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HttpResponseEncoder());
                 pipeline.addLast(new HttpRequestDecoder());
                 pipeline.addLast(new HttpObjectAggregator(65535));
diff --git a/src/main/java/org/traccar/protocol/DmtHttpProtocolDecoder.java b/src/main/java/org/traccar/protocol/DmtHttpProtocolDecoder.java
index 815cce987..c2e617a2a 100644
--- a/src/main/java/org/traccar/protocol/DmtHttpProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/DmtHttpProtocolDecoder.java
@@ -19,15 +19,15 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
 
-import javax.json.Json;
-import javax.json.JsonArray;
-import javax.json.JsonObject;
+import jakarta.json.Json;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
 import java.io.StringReader;
 import java.net.SocketAddress;
 import java.nio.charset.StandardCharsets;
diff --git a/src/main/java/org/traccar/protocol/DmtProtocol.java b/src/main/java/org/traccar/protocol/DmtProtocol.java
index 78a5243c0..e89920cd3 100644
--- a/src/main/java/org/traccar/protocol/DmtProtocol.java
+++ b/src/main/java/org/traccar/protocol/DmtProtocol.java
@@ -19,14 +19,18 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 
 import java.nio.ByteOrder;
+import jakarta.inject.Inject;
+
 public class DmtProtocol extends BaseProtocol {
 
-    public DmtProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public DmtProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.LITTLE_ENDIAN, 1024, 3, 2, 0, 0, true));
                 pipeline.addLast(new DmtProtocolDecoder(DmtProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/DmtProtocolDecoder.java b/src/main/java/org/traccar/protocol/DmtProtocolDecoder.java
index 96b06557a..320aa1b60 100644
--- a/src/main/java/org/traccar/protocol/DmtProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/DmtProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -184,9 +184,9 @@ public class DmtProtocolDecoder extends BaseProtocolDecoder {
 
                     position.set(Position.KEY_IGNITION, BitUtil.check(input, 0));
 
-                    if (!BitUtil.check(input, 1)) {
+                    if (!BitUtil.check(status, 1)) {
                         position.set(Position.KEY_ALARM, Position.ALARM_LOW_BATTERY);
-                    } else if (BitUtil.check(input, 6)) {
+                    } else if (BitUtil.check(status, 6)) {
                         position.set(Position.KEY_ALARM, Position.ALARM_TAMPERING);
                     }
 
diff --git a/src/main/java/org/traccar/protocol/DolphinProtocol.java b/src/main/java/org/traccar/protocol/DolphinProtocol.java
index 07c827e18..e2acce7dd 100644
--- a/src/main/java/org/traccar/protocol/DolphinProtocol.java
+++ b/src/main/java/org/traccar/protocol/DolphinProtocol.java
@@ -19,15 +19,19 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 
 import java.nio.ByteOrder;
 
+import jakarta.inject.Inject;
+
 public class DolphinProtocol extends BaseProtocol {
 
-    public DolphinProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public DolphinProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.LITTLE_ENDIAN, 4096, 20, 4, 4, 0, true));
                 pipeline.addLast(new DolphinProtocolDecoder(DolphinProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/DolphinProtocolDecoder.java b/src/main/java/org/traccar/protocol/DolphinProtocolDecoder.java
index d509b3ec0..b43635a52 100644
--- a/src/main/java/org/traccar/protocol/DolphinProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/DolphinProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/Dsf22Protocol.java b/src/main/java/org/traccar/protocol/Dsf22Protocol.java
index bffc3e419..ad349a7ff 100644
--- a/src/main/java/org/traccar/protocol/Dsf22Protocol.java
+++ b/src/main/java/org/traccar/protocol/Dsf22Protocol.java
@@ -18,20 +18,24 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Dsf22Protocol extends BaseProtocol {
 
-    public Dsf22Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Dsf22Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new Dsf22FrameDecoder());
                 pipeline.addLast(new Dsf22ProtocolDecoder(Dsf22Protocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new Dsf22ProtocolDecoder(Dsf22Protocol.this));
             }
         });
diff --git a/src/main/java/org/traccar/protocol/Dsf22ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Dsf22ProtocolDecoder.java
index 3ef960f12..124bbfefa 100644
--- a/src/main/java/org/traccar/protocol/Dsf22ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Dsf22ProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/DualcamProtocol.java b/src/main/java/org/traccar/protocol/DualcamProtocol.java
index 04c4f2bd1..4725cb180 100644
--- a/src/main/java/org/traccar/protocol/DualcamProtocol.java
+++ b/src/main/java/org/traccar/protocol/DualcamProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class DualcamProtocol extends BaseProtocol {
 
-    public DualcamProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public DualcamProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new DualcamFrameDecoder());
                 pipeline.addLast(new DualcamProtocolDecoder(DualcamProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/DualcamProtocolDecoder.java b/src/main/java/org/traccar/protocol/DualcamProtocolDecoder.java
index c64b8171f..d03f7648d 100644
--- a/src/main/java/org/traccar/protocol/DualcamProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/DualcamProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2021 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,8 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -47,7 +46,8 @@ public class DualcamProtocolDecoder extends BaseProtocolDecoder {
     private String uniqueId;
     private int packetCount;
     private int currentPacket;
-    private ByteBuf photo;
+    private boolean video;
+    private ByteBuf media;
 
     @Override
     protected Object decode(
@@ -65,13 +65,26 @@ public class DualcamProtocolDecoder extends BaseProtocolDecoder {
                 long settings = buf.readUnsignedInt();
                 if (channel != null && deviceSession != null) {
                     ByteBuf response = Unpooled.buffer();
-                    if (BitUtil.between(settings, 26, 28) > 0) {
+                    if (BitUtil.between(settings, 26, 30) > 0) {
                         response.writeShort(MSG_FILE_REQUEST);
-                        String file = BitUtil.check(settings, 26) ? "%photof" : "%photor";
+                        String file;
+                        if (BitUtil.check(settings, 26)) {
+                            video = false;
+                            file = "%photof";
+                        } else if (BitUtil.check(settings, 27)) {
+                            video = false;
+                            file = "%photor";
+                        } else if (BitUtil.check(settings, 28)) {
+                            video = true;
+                            file = "%videof";
+                        } else {
+                            video = true;
+                            file = "%videor";
+                        }
                         response.writeShort(file.length());
                         response.writeCharSequence(file, StandardCharsets.US_ASCII);
                     } else {
-                        response.writeShort(MSG_COMPLETE);
+                        response.writeShort(MSG_INIT);
                     }
                     channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
                 }
@@ -80,7 +93,7 @@ public class DualcamProtocolDecoder extends BaseProtocolDecoder {
                 buf.readUnsignedShort(); // length
                 packetCount = buf.readInt();
                 currentPacket = 1;
-                photo = Unpooled.buffer();
+                media = Unpooled.buffer();
                 if (channel != null) {
                     ByteBuf response = Unpooled.buffer();
                     response.writeShort(MSG_RESUME);
@@ -91,17 +104,21 @@ public class DualcamProtocolDecoder extends BaseProtocolDecoder {
                 break;
             case MSG_DATA:
                 buf.readUnsignedShort(); // length
-                photo.writeBytes(buf, buf.readableBytes() - 2);
+                media.writeBytes(buf, buf.readableBytes() - 2);
                 if (currentPacket == packetCount) {
                     deviceSession = getDeviceSession(channel, remoteAddress);
                     Position position = new Position(getProtocolName());
                     position.setDeviceId(deviceSession.getDeviceId());
                     getLastLocation(position, null);
                     try {
-                        position.set(Position.KEY_IMAGE, Context.getMediaManager().writeFile(uniqueId, photo, "jpg"));
+                        if (video) {
+                            position.set(Position.KEY_VIDEO, writeMediaFile(uniqueId, media, "h265"));
+                        } else {
+                            position.set(Position.KEY_IMAGE, writeMediaFile(uniqueId, media, "jpg"));
+                        }
                     } finally {
-                        photo.release();
-                        photo = null;
+                        media.release();
+                        media = null;
                     }
                     if (channel != null) {
                         ByteBuf response = Unpooled.buffer();
diff --git a/src/main/java/org/traccar/protocol/DwayProtocol.java b/src/main/java/org/traccar/protocol/DwayProtocol.java
index 05fd8b6e7..2ba1cf5f1 100644
--- a/src/main/java/org/traccar/protocol/DwayProtocol.java
+++ b/src/main/java/org/traccar/protocol/DwayProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class DwayProtocol extends BaseProtocol {
 
-    public DwayProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public DwayProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/DwayProtocolDecoder.java b/src/main/java/org/traccar/protocol/DwayProtocolDecoder.java
index 9b02c898e..9cf40b011 100644
--- a/src/main/java/org/traccar/protocol/DwayProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/DwayProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/EasyTrackProtocol.java b/src/main/java/org/traccar/protocol/EasyTrackProtocol.java
index 972b36077..25d4ef9a0 100644
--- a/src/main/java/org/traccar/protocol/EasyTrackProtocol.java
+++ b/src/main/java/org/traccar/protocol/EasyTrackProtocol.java
@@ -21,19 +21,23 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class EasyTrackProtocol extends BaseProtocol {
 
-    public EasyTrackProtocol() {
+    @Inject
+    public EasyTrackProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_ENGINE_RESUME,
                 Command.TYPE_ALARM_ARM,
                 Command.TYPE_ALARM_DISARM);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, "#\r\n", "#", "\r\n"));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/EasyTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/EasyTrackProtocolDecoder.java
index 4fcc48944..805cf1197 100644
--- a/src/main/java/org/traccar/protocol/EasyTrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/EasyTrackProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/EelinkProtocol.java b/src/main/java/org/traccar/protocol/EelinkProtocol.java
index 8a055d643..2a3c0bd15 100644
--- a/src/main/java/org/traccar/protocol/EelinkProtocol.java
+++ b/src/main/java/org/traccar/protocol/EelinkProtocol.java
@@ -19,28 +19,32 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class EelinkProtocol extends BaseProtocol {
 
-    public EelinkProtocol() {
+    @Inject
+    public EelinkProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM,
                 Command.TYPE_POSITION_SINGLE,
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_ENGINE_RESUME,
                 Command.TYPE_REBOOT_DEVICE);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 3, 2));
                 pipeline.addLast(new EelinkProtocolEncoder(EelinkProtocol.this, false));
                 pipeline.addLast(new EelinkProtocolDecoder(EelinkProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new EelinkProtocolEncoder(EelinkProtocol.this, true));
                 pipeline.addLast(new EelinkProtocolDecoder(EelinkProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/EelinkProtocolDecoder.java b/src/main/java/org/traccar/protocol/EelinkProtocolDecoder.java
index 592e5a56c..db1b365c3 100644
--- a/src/main/java/org/traccar/protocol/EelinkProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/EelinkProtocolDecoder.java
@@ -21,7 +21,7 @@ import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import io.netty.channel.socket.DatagramChannel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -273,6 +273,17 @@ public class EelinkProtocolDecoder extends BaseProtocolDecoder {
             if (BitUtil.check(status, 1)) {
                 position.set(Position.KEY_IGNITION, BitUtil.check(status, 2));
             }
+            if (BitUtil.check(status, 3)) {
+                position.set(Position.KEY_ARMED, BitUtil.check(status, 4));
+                position.set(Position.KEY_MOTION, BitUtil.check(status, 9));
+            }
+            if (BitUtil.check(status, 5)) {
+                position.set(Position.KEY_BLOCKED, BitUtil.check(status, 6));
+            }
+            if (BitUtil.check(status, 7)) {
+                position.set(Position.KEY_CHARGE, BitUtil.check(status, 8));
+            }
+            position.set(Position.KEY_GPS, BitUtil.check(status, 10));
             position.set(Position.KEY_STATUS, status);
 
         }
@@ -303,7 +314,7 @@ public class EelinkProtocolDecoder extends BaseProtocolDecoder {
             }
 
             if (buf.readableBytes() >= 12) {
-                position.set(Position.PREFIX_TEMP + 1, buf.readUnsignedShort() / 256.0);
+                position.set(Position.PREFIX_TEMP + 1, buf.readShort() / 256.0);
                 position.set("humidity", buf.readUnsignedShort() * 0.1);
                 position.set("illuminance", buf.readUnsignedInt() / 256.0);
                 position.set("co2", buf.readUnsignedInt());
diff --git a/src/main/java/org/traccar/protocol/EgtsProtocol.java b/src/main/java/org/traccar/protocol/EgtsProtocol.java
index 5d4638f37..5450d9f01 100644
--- a/src/main/java/org/traccar/protocol/EgtsProtocol.java
+++ b/src/main/java/org/traccar/protocol/EgtsProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class EgtsProtocol extends BaseProtocol {
 
-    public EgtsProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public EgtsProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new EgtsFrameDecoder());
                 pipeline.addLast(new EgtsProtocolDecoder(EgtsProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/EgtsProtocolDecoder.java b/src/main/java/org/traccar/protocol/EgtsProtocolDecoder.java
index e65ddb0ef..01d329580 100644
--- a/src/main/java/org/traccar/protocol/EgtsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/EgtsProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -291,7 +291,7 @@ public class EgtsProtocolDecoder extends BaseProtocolDecoder {
 
             if (serviceType == SERVICE_TELEDATA && position.getValid()) {
                 if (useObjectIdAsDeviceId && objectId != 0L) {
-                    deviceSession = getDeviceSession(channel, remoteAddress, true, String.valueOf(objectId));
+                    deviceSession = getDeviceSession(channel, remoteAddress, String.valueOf(objectId));
                     if (deviceSession != null) {
                         position.setDeviceId(deviceSession.getDeviceId());
                     }
diff --git a/src/main/java/org/traccar/protocol/EnforaProtocol.java b/src/main/java/org/traccar/protocol/EnforaProtocol.java
index e462ab322..3b796db25 100644
--- a/src/main/java/org/traccar/protocol/EnforaProtocol.java
+++ b/src/main/java/org/traccar/protocol/EnforaProtocol.java
@@ -19,26 +19,30 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class EnforaProtocol extends BaseProtocol {
 
-    public EnforaProtocol() {
+    @Inject
+    public EnforaProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM,
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_ENGINE_RESUME);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 0, 2, -2, 2));
                 pipeline.addLast(new EnforaProtocolEncoder(EnforaProtocol.this));
                 pipeline.addLast(new EnforaProtocolDecoder(EnforaProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new EnforaProtocolEncoder(EnforaProtocol.this));
                 pipeline.addLast(new EnforaProtocolDecoder(EnforaProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/EnforaProtocolDecoder.java b/src/main/java/org/traccar/protocol/EnforaProtocolDecoder.java
index bfa7a116b..dd1c8017b 100644
--- a/src/main/java/org/traccar/protocol/EnforaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/EnforaProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BufferUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/EnnfuProtocol.java b/src/main/java/org/traccar/protocol/EnnfuProtocol.java
index 7ef94d83f..a3ff943fa 100644
--- a/src/main/java/org/traccar/protocol/EnnfuProtocol.java
+++ b/src/main/java/org/traccar/protocol/EnnfuProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class EnnfuProtocol extends BaseProtocol {
 
-    public EnnfuProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public EnnfuProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '$'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/EnnfuProtocolDecoder.java b/src/main/java/org/traccar/protocol/EnnfuProtocolDecoder.java
index 792ed1098..2198938e2 100644
--- a/src/main/java/org/traccar/protocol/EnnfuProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/EnnfuProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/EnvotechProtocol.java b/src/main/java/org/traccar/protocol/EnvotechProtocol.java
index 8eb71ee6b..e432ac07c 100644
--- a/src/main/java/org/traccar/protocol/EnvotechProtocol.java
+++ b/src/main/java/org/traccar/protocol/EnvotechProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class EnvotechProtocol extends BaseProtocol {
 
-    public EnvotechProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public EnvotechProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '#'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/EnvotechProtocolDecoder.java b/src/main/java/org/traccar/protocol/EnvotechProtocolDecoder.java
index 083d8a921..750ff2bda 100644
--- a/src/main/java/org/traccar/protocol/EnvotechProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/EnvotechProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
@@ -48,14 +48,15 @@ public class EnvotechProtocolDecoder extends BaseProtocolDecoder {
             .number("(ddd),")                    // battery
             .number("(xx)")                      // inputs
             .number("(xx),")                     // outputs
-            .number("(xxx)?,")                   // fuel
+            .number("(xxx)?")                    // fuel
+            .number("(xxx)?,")                   // weight
             .number("(x{8}),")                   // status
             .expression("[^']*'")
             .number("(dd)(dd)(dd)")              // date (ddmmyy)
             .number("(dd)(dd)(dd)")              // time (hhmmss)
             .number("(d)")                       // fix
-            .number("(dd)(dd)(d+)([NS])")        // latitude
-            .number("(ddd)(dd)(d+)([EW])")       // longitude
+            .number("(d+)(d{5})([NS])")          // latitude
+            .number("(d+)(d{5})([EW])")          // longitude
             .number("(ddd)")                     // speed
             .number("(ddd)")                     // course
             .any()
@@ -72,7 +73,18 @@ public class EnvotechProtocolDecoder extends BaseProtocolDecoder {
 
         Position position = new Position(getProtocolName());
 
-        position.set(Position.KEY_EVENT, parser.nextHexInt());
+        int event = parser.nextHexInt();
+        switch (event) {
+            case 0x60:
+                position.set(Position.KEY_ALARM, Position.ALARM_LOCK);
+                break;
+            case 0x61:
+                position.set(Position.KEY_ALARM, Position.ALARM_UNLOCK);
+                break;
+            default:
+                break;
+        }
+        position.set(Position.KEY_EVENT, event);
 
         DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
         if (deviceSession == null) {
@@ -88,12 +100,13 @@ public class EnvotechProtocolDecoder extends BaseProtocolDecoder {
         position.set(Position.KEY_INPUT, parser.nextHexInt());
         position.set(Position.PREFIX_OUT, parser.nextHexInt());
         position.set(Position.KEY_FUEL_LEVEL, parser.nextHexInt());
-        position.set(Position.KEY_STATUS, parser.nextHexInt());
+        position.set("weight", parser.nextHexInt());
+        position.set(Position.KEY_STATUS, parser.nextHexLong());
 
         position.setFixTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
         position.setValid(parser.nextInt() > 0);
-        position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_MIN_MIN_HEM));
-        position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_MIN_MIN_HEM));
+        position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_DEG_HEM));
+        position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_DEG_HEM));
         position.setSpeed(parser.nextInt());
         position.setCourse(parser.nextInt());
 
diff --git a/src/main/java/org/traccar/protocol/EsealProtocol.java b/src/main/java/org/traccar/protocol/EsealProtocol.java
index fc1d342e1..eae4cf2aa 100644
--- a/src/main/java/org/traccar/protocol/EsealProtocol.java
+++ b/src/main/java/org/traccar/protocol/EsealProtocol.java
@@ -21,18 +21,22 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class EsealProtocol extends BaseProtocol {
 
-    public EsealProtocol() {
+    @Inject
+    public EsealProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM,
                 Command.TYPE_ALARM_ARM,
                 Command.TYPE_ALARM_DISARM);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/EsealProtocolDecoder.java b/src/main/java/org/traccar/protocol/EsealProtocolDecoder.java
index 0a12f781d..dd15c4276 100644
--- a/src/main/java/org/traccar/protocol/EsealProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/EsealProtocolDecoder.java
@@ -17,8 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
@@ -32,11 +31,15 @@ import java.util.regex.Pattern;
 
 public class EsealProtocolDecoder extends BaseProtocolDecoder {
 
-    private final String config;
+    private String config;
 
     public EsealProtocolDecoder(Protocol protocol) {
         super(protocol);
-        config = Context.getConfig().getString(Keys.PROTOCOL_CONFIG.withPrefix(getProtocolName()));
+    }
+
+    @Override
+    protected void init() {
+        config = getConfig().getString(Keys.PROTOCOL_CONFIG.withPrefix(getProtocolName()));
     }
 
     private static final Pattern PATTERN = new PatternBuilder()
diff --git a/src/main/java/org/traccar/protocol/EskyProtocol.java b/src/main/java/org/traccar/protocol/EskyProtocol.java
index fb047c207..002e268ba 100644
--- a/src/main/java/org/traccar/protocol/EskyProtocol.java
+++ b/src/main/java/org/traccar/protocol/EskyProtocol.java
@@ -20,22 +20,26 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class EskyProtocol extends BaseProtocol {
 
-    public EskyProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public EskyProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new EskyFrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new EskyProtocolDecoder(EskyProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new EskyProtocolDecoder(EskyProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/EskyProtocolDecoder.java b/src/main/java/org/traccar/protocol/EskyProtocolDecoder.java
index 14b4376d5..4239022d0 100644
--- a/src/main/java/org/traccar/protocol/EskyProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/EskyProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.channel.Channel;
 import io.netty.channel.socket.DatagramChannel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/ExtremTracProtocol.java b/src/main/java/org/traccar/protocol/ExtremTracProtocol.java
index 692fd4e99..23a993fe4 100644
--- a/src/main/java/org/traccar/protocol/ExtremTracProtocol.java
+++ b/src/main/java/org/traccar/protocol/ExtremTracProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class ExtremTracProtocol extends BaseProtocol {
 
-    public ExtremTracProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public ExtremTracProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/ExtremTracProtocolDecoder.java b/src/main/java/org/traccar/protocol/ExtremTracProtocolDecoder.java
index 9fde6f0a0..706c70825 100644
--- a/src/main/java/org/traccar/protocol/ExtremTracProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ExtremTracProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/FifotrackProtocol.java b/src/main/java/org/traccar/protocol/FifotrackProtocol.java
index 4a0a12ed3..e98ad84cc 100644
--- a/src/main/java/org/traccar/protocol/FifotrackProtocol.java
+++ b/src/main/java/org/traccar/protocol/FifotrackProtocol.java
@@ -19,17 +19,21 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class FifotrackProtocol extends BaseProtocol {
 
-    public FifotrackProtocol() {
+    @Inject
+    public FifotrackProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM,
                 Command.TYPE_REQUEST_PHOTO);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new FifotrackFrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new FifotrackProtocolEncoder(FifotrackProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/FifotrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/FifotrackProtocolDecoder.java
index 5f9326a61..87587aa1e 100644
--- a/src/main/java/org/traccar/protocol/FifotrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FifotrackProtocolDecoder.java
@@ -19,8 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -35,6 +34,10 @@ import org.traccar.model.WifiAccessPoint;
 
 import java.net.SocketAddress;
 import java.nio.charset.StandardCharsets;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.TimeZone;
 import java.util.regex.Pattern;
 
 public class FifotrackProtocolDecoder extends BaseProtocolDecoder {
@@ -61,7 +64,7 @@ public class FifotrackProtocolDecoder extends BaseProtocolDecoder {
             .number("(d+),")                     // course
             .number("(-?d+),")                   // altitude
             .number("(d+),")                     // odometer
-            .number("d+,")                       // runtime
+            .number("(d+),")                     // engine hours
             .number("(x+),")                     // status
             .number("(x+)?,")                    // input
             .number("(x+)?,")                    // output
@@ -79,7 +82,7 @@ public class FifotrackProtocolDecoder extends BaseProtocolDecoder {
             .text("$$")
             .number("d+,")                       // length
             .number("(d+),")                     // imei
-            .number("x+,")                       // index
+            .number("(x+),")                     // index
             .text("A03,")                        // type
             .number("(d+)?,")                    // alarm
             .number("(dd)(dd)(dd)")              // date (yymmdd)
@@ -138,16 +141,20 @@ public class FifotrackProtocolDecoder extends BaseProtocolDecoder {
             .number("xx")
             .compile();
 
-    private void requestPhoto(Channel channel, SocketAddress socketAddress, String imei, String file) {
+    private void sendResponse(Channel channel, SocketAddress remoteAddress, String imei, String content) {
         if (channel != null) {
-            String content = "1,D06," + file + "," + photo.writerIndex() + "," + Math.min(1024, photo.writableBytes());
             int length = 1 + imei.length() + 1 + content.length();
             String response = String.format("##%02d,%s,%s*", length, imei, content);
             response += Checksum.sum(response) + "\r\n";
-            channel.writeAndFlush(new NetworkMessage(response, socketAddress));
+            channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
         }
     }
 
+    private void requestPhoto(Channel channel, SocketAddress remoteAddress, String imei, String file) {
+        String content = "1,D06," + file + "," + photo.writerIndex() + "," + Math.min(1024, photo.writableBytes());
+        sendResponse(channel, remoteAddress, imei, content);
+    }
+
     private String decodeAlarm(Integer alarm) {
         if (alarm != null) {
             switch (alarm) {
@@ -201,11 +208,14 @@ public class FifotrackProtocolDecoder extends BaseProtocolDecoder {
             return null;
         }
 
-        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+        String imei = parser.next();
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
         if (deviceSession == null) {
             return null;
         }
 
+        String index = parser.next();
+
         Position position = new Position(getProtocolName());
         position.setDeviceId(deviceSession.getDeviceId());
 
@@ -225,13 +235,15 @@ public class FifotrackProtocolDecoder extends BaseProtocolDecoder {
 
             position.setValid(parser.next().equals("A"));
             position.setFixTime(position.getDeviceTime());
-            position.set(Position.KEY_SATELLITES, parser.nextInt());
             position.setSpeed(UnitsConverter.knotsFromKph(parser.nextInt()));
+            position.set(Position.KEY_SATELLITES, parser.nextInt());
             position.setLatitude(parser.nextDouble());
             position.setLongitude(parser.nextDouble());
 
         } else {
 
+            getLastLocation(position, position.getDeviceTime());
+
             String[] points = parser.next().split("\\|");
             for (String point : points) {
                 String[] wifi = point.split(":");
@@ -244,6 +256,11 @@ public class FifotrackProtocolDecoder extends BaseProtocolDecoder {
 
         position.setNetwork(network);
 
+        DateFormat dateFormat = new SimpleDateFormat("yyMMddHHmmss");
+        dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
+        String response = index + ",A03," + dateFormat.format(new Date());
+        sendResponse(channel, remoteAddress, imei, response);
+
         return position;
     }
 
@@ -275,6 +292,7 @@ public class FifotrackProtocolDecoder extends BaseProtocolDecoder {
         position.setAltitude(parser.nextInt());
 
         position.set(Position.KEY_ODOMETER, parser.nextLong());
+        position.set(Position.KEY_HOURS, parser.nextLong() * 1000);
 
         long status = parser.nextHexLong();
         position.set(Position.KEY_RSSI, BitUtil.between(status, 3, 8));
@@ -293,11 +311,11 @@ public class FifotrackProtocolDecoder extends BaseProtocolDecoder {
         }
 
         if (parser.hasNext()) {
-            String rfid = parser.next();
-            if (rfid.matches("\\p{XDigit}+")) {
-                position.set(Position.KEY_DRIVER_UNIQUE_ID, String.valueOf(Integer.parseInt(rfid, 16)));
+            String value = parser.next();
+            if (value.matches("\\p{XDigit}+")) {
+                position.set(Position.KEY_DRIVER_UNIQUE_ID, String.valueOf(Integer.parseInt(value, 16)));
             } else {
-                position.set("driverLicense", rfid);
+                position.set(Position.KEY_CARD, value);
             }
         }
 
@@ -381,7 +399,7 @@ public class FifotrackProtocolDecoder extends BaseProtocolDecoder {
                     Position position = new Position(getProtocolName());
                     position.setDeviceId(getDeviceSession(channel, remoteAddress, imei).getDeviceId());
                     getLastLocation(position, null);
-                    position.set(Position.KEY_IMAGE, Context.getMediaManager().writeFile(imei, photo, "jpg"));
+                    position.set(Position.KEY_IMAGE, writeMediaFile(imei, photo, "jpg"));
                     photo.release();
                     photo = null;
                     return position;
diff --git a/src/main/java/org/traccar/protocol/FlespiProtocol.java b/src/main/java/org/traccar/protocol/FlespiProtocol.java
index 05b105f93..0d8448845 100644
--- a/src/main/java/org/traccar/protocol/FlespiProtocol.java
+++ b/src/main/java/org/traccar/protocol/FlespiProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.http.HttpResponseEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class FlespiProtocol extends BaseProtocol {
 
-    public FlespiProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public FlespiProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HttpResponseEncoder());
                 pipeline.addLast(new HttpRequestDecoder(4096, 8192, 128 * 1024));
                 pipeline.addLast(new HttpObjectAggregator(Integer.MAX_VALUE));
diff --git a/src/main/java/org/traccar/protocol/FlespiProtocolDecoder.java b/src/main/java/org/traccar/protocol/FlespiProtocolDecoder.java
index 83ca74ce5..ea076afd8 100644
--- a/src/main/java/org/traccar/protocol/FlespiProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FlespiProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,17 +19,17 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
 
-import javax.json.Json;
-import javax.json.JsonArray;
-import javax.json.JsonNumber;
-import javax.json.JsonObject;
-import javax.json.JsonString;
-import javax.json.JsonValue;
+import jakarta.json.Json;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonNumber;
+import jakarta.json.JsonObject;
+import jakarta.json.JsonString;
+import jakarta.json.JsonValue;
 import java.io.StringReader;
 import java.net.SocketAddress;
 import java.nio.charset.StandardCharsets;
@@ -54,11 +54,11 @@ public class FlespiProtocolDecoder extends BaseHttpProtocolDecoder {
         List<Position> positions = new LinkedList<>();
         for (int i = 0; i < result.size(); i++) {
             JsonObject message = result.getJsonObject(i);
-            JsonString ident = message.getJsonString("ident");
-            if (ident == null) {
+            JsonString identifier = message.getJsonString("ident");
+            if (identifier == null) {
                 continue;
             }
-            DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, ident.getString());
+            DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, identifier.getString());
             if (deviceSession == null) {
                 continue;
             }
@@ -125,12 +125,13 @@ public class FlespiProtocolDecoder extends BaseHttpProtocolDecoder {
                 position.set(Position.KEY_PDOP, ((JsonNumber) value).doubleValue());
                 return true;
             case "din":
+                position.set(Position.KEY_INPUT, ((JsonNumber) value).intValue());
+                return true;
             case "dout":
-                if (name.equals("din")) {
-                    position.set(Position.KEY_INPUT, ((JsonNumber) value).intValue());
-                } else {
-                    position.set(Position.KEY_OUTPUT, ((JsonNumber) value).intValue());
-                }
+                position.set(Position.KEY_OUTPUT, ((JsonNumber) value).intValue());
+                return true;
+            case "report.reason":
+                position.set(Position.KEY_EVENT, ((JsonNumber) value).intValue());
                 return true;
             case "gps.vehicle.mileage":
                 position.set(Position.KEY_ODOMETER, ((JsonNumber) value).doubleValue());
@@ -141,6 +142,9 @@ public class FlespiProtocolDecoder extends BaseHttpProtocolDecoder {
             case "battery.voltage":
                 position.set(Position.KEY_BATTERY, ((JsonNumber) value).doubleValue());
                 return true;
+            case "battery.level":
+                position.set(Position.KEY_BATTERY_LEVEL, ((JsonNumber) value).intValue());
+                return true;
             case "fuel.level":
             case "can.fuel.level":
                 position.set(Position.KEY_FUEL_LEVEL, ((JsonNumber) value).doubleValue());
@@ -228,6 +232,15 @@ public class FlespiProtocolDecoder extends BaseHttpProtocolDecoder {
                     position.set(Position.KEY_ALARM, Position.ALARM_BONNET);
                 }
                 return true;
+            case "custom.wln_accel_max":
+                position.set("maxAcceleration", ((JsonNumber) value).doubleValue());
+                return true;
+            case "custom.wln_brk_max":
+                position.set("maxBraking", ((JsonNumber) value).doubleValue());
+                return true;
+            case "custom.wln_crn_max":
+                position.set("maxCornering", ((JsonNumber) value).doubleValue());
+                return true;
             default:
                 return false;
         }
diff --git a/src/main/java/org/traccar/protocol/FlexApiProtocol.java b/src/main/java/org/traccar/protocol/FlexApiProtocol.java
index 7f4154f71..b2e3f5d00 100644
--- a/src/main/java/org/traccar/protocol/FlexApiProtocol.java
+++ b/src/main/java/org/traccar/protocol/FlexApiProtocol.java
@@ -20,15 +20,19 @@ import io.netty.handler.codec.string.StringDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 
 import java.nio.charset.StandardCharsets;
 
+import jakarta.inject.Inject;
+
 public class FlexApiProtocol extends BaseProtocol {
 
-    public FlexApiProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public FlexApiProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(5120));
                 pipeline.addLast(new StringDecoder(StandardCharsets.US_ASCII));
                 pipeline.addLast(new FlexApiProtocolDecoder(FlexApiProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/FlexApiProtocolDecoder.java b/src/main/java/org/traccar/protocol/FlexApiProtocolDecoder.java
index bcfbdd7da..fb76673ca 100644
--- a/src/main/java/org/traccar/protocol/FlexApiProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FlexApiProtocolDecoder.java
@@ -17,14 +17,14 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.model.CellTower;
 import org.traccar.model.Network;
 import org.traccar.model.Position;
 
-import javax.json.Json;
-import javax.json.JsonObject;
+import jakarta.json.Json;
+import jakarta.json.JsonObject;
 import java.io.StringReader;
 import java.net.SocketAddress;
 import java.util.Date;
diff --git a/src/main/java/org/traccar/protocol/FlexCommProtocol.java b/src/main/java/org/traccar/protocol/FlexCommProtocol.java
index 9343ebeb8..293b9b12b 100644
--- a/src/main/java/org/traccar/protocol/FlexCommProtocol.java
+++ b/src/main/java/org/traccar/protocol/FlexCommProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class FlexCommProtocol extends BaseProtocol {
 
-    public FlexCommProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public FlexCommProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new FixedLengthFrameDecoder(2 + 2 + 101 + 5));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/FlexCommProtocolDecoder.java b/src/main/java/org/traccar/protocol/FlexCommProtocolDecoder.java
index 068c0a05c..0d8bd9373 100644
--- a/src/main/java/org/traccar/protocol/FlexCommProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FlexCommProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/FlexibleReportProtocol.java b/src/main/java/org/traccar/protocol/FlexibleReportProtocol.java
index 0cd55343a..a16e61458 100644
--- a/src/main/java/org/traccar/protocol/FlexibleReportProtocol.java
+++ b/src/main/java/org/traccar/protocol/FlexibleReportProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class FlexibleReportProtocol extends BaseProtocol {
 
-    public FlexibleReportProtocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public FlexibleReportProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new FlexibleReportProtocolDecoder(FlexibleReportProtocol.this));
             }
         });
diff --git a/src/main/java/org/traccar/protocol/FlexibleReportProtocolDecoder.java b/src/main/java/org/traccar/protocol/FlexibleReportProtocolDecoder.java
index 759f2cd6f..9fcee1aeb 100644
--- a/src/main/java/org/traccar/protocol/FlexibleReportProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FlexibleReportProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/FlextrackProtocol.java b/src/main/java/org/traccar/protocol/FlextrackProtocol.java
index ddd1d58f0..b6353de9d 100644
--- a/src/main/java/org/traccar/protocol/FlextrackProtocol.java
+++ b/src/main/java/org/traccar/protocol/FlextrackProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class FlextrackProtocol extends BaseProtocol {
 
-    public FlextrackProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public FlextrackProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, "\r"));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/FlextrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/FlextrackProtocolDecoder.java
index 9dce22ede..a0dac1c41 100644
--- a/src/main/java/org/traccar/protocol/FlextrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FlextrackProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/FoxProtocol.java b/src/main/java/org/traccar/protocol/FoxProtocol.java
index 9bac773b5..edb496f11 100644
--- a/src/main/java/org/traccar/protocol/FoxProtocol.java
+++ b/src/main/java/org/traccar/protocol/FoxProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class FoxProtocol extends BaseProtocol {
 
-    public FoxProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public FoxProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, "</fox>"));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/FoxProtocolDecoder.java b/src/main/java/org/traccar/protocol/FoxProtocolDecoder.java
index 449f00022..6dd0b0e95 100644
--- a/src/main/java/org/traccar/protocol/FoxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FoxProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/FreedomProtocol.java b/src/main/java/org/traccar/protocol/FreedomProtocol.java
index bc6b92d5f..87404094a 100644
--- a/src/main/java/org/traccar/protocol/FreedomProtocol.java
+++ b/src/main/java/org/traccar/protocol/FreedomProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class FreedomProtocol extends BaseProtocol {
 
-    public FreedomProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public FreedomProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/FreedomProtocolDecoder.java b/src/main/java/org/traccar/protocol/FreedomProtocolDecoder.java
index 1d2dd3133..27dda1a6d 100644
--- a/src/main/java/org/traccar/protocol/FreedomProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FreedomProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/FreematicsProtocol.java b/src/main/java/org/traccar/protocol/FreematicsProtocol.java
index 999b075a1..c4076f330 100644
--- a/src/main/java/org/traccar/protocol/FreematicsProtocol.java
+++ b/src/main/java/org/traccar/protocol/FreematicsProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class FreematicsProtocol extends BaseProtocol {
 
-    public FreematicsProtocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public FreematicsProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new FreematicsProtocolDecoder(FreematicsProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/FreematicsProtocolDecoder.java b/src/main/java/org/traccar/protocol/FreematicsProtocolDecoder.java
index aded35823..4d8e7e7ea 100644
--- a/src/main/java/org/traccar/protocol/FreematicsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FreematicsProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
@@ -153,7 +153,7 @@ public class FreematicsProtocolDecoder extends BaseProtocolDecoder {
                         position.set(Position.KEY_RSSI, Integer.parseInt(value));
                         break;
                     case 0x82:
-                        position.set(Position.KEY_DEVICE_TEMP, Integer.parseInt(value) * 0.1);
+                        position.set(Position.KEY_DEVICE_TEMP, Double.parseDouble(value) * 0.1);
                         break;
                     case 0x104:
                         position.set(Position.KEY_ENGINE_LOAD, Integer.parseInt(value));
diff --git a/src/main/java/org/traccar/protocol/FutureWayProtocol.java b/src/main/java/org/traccar/protocol/FutureWayProtocol.java
index 73b53ee12..20586bede 100644
--- a/src/main/java/org/traccar/protocol/FutureWayProtocol.java
+++ b/src/main/java/org/traccar/protocol/FutureWayProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class FutureWayProtocol extends BaseProtocol {
 
-    public FutureWayProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public FutureWayProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new FutureWayFrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/FutureWayProtocolDecoder.java b/src/main/java/org/traccar/protocol/FutureWayProtocolDecoder.java
index c2f3781d9..57027b080 100644
--- a/src/main/java/org/traccar/protocol/FutureWayProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FutureWayProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DataConverter;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/G1rusFrameDecoder.java b/src/main/java/org/traccar/protocol/G1rusFrameDecoder.java
new file mode 100644
index 000000000..8c67207ad
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/G1rusFrameDecoder.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelHandlerContext;
+import org.traccar.BaseFrameDecoder;
+
+public class G1rusFrameDecoder extends BaseFrameDecoder {
+
+    @Override
+    protected Object decode(
+            ChannelHandlerContext ctx, Channel channel, ByteBuf buf) throws Exception {
+
+        ByteBuf result = Unpooled.buffer();
+
+        while (buf.isReadable()) {
+            int b = buf.readUnsignedByte();
+            if (b == 0x1B) {
+                int ext = buf.readUnsignedByte();
+                if (ext == 0x00) {
+                    result.writeByte(0x1B);
+                } else {
+                    result.writeByte(0xF8);
+                }
+            } else {
+                result.writeByte(b);
+            }
+        }
+
+        return result;
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/G1rusProtocol.java b/src/main/java/org/traccar/protocol/G1rusProtocol.java
new file mode 100644
index 000000000..b3904b357
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/G1rusProtocol.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.handler.codec.string.StringEncoder;
+import org.traccar.BaseProtocol;
+import org.traccar.PipelineBuilder;
+import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
+
+public class G1rusProtocol extends BaseProtocol {
+
+    @Inject
+    public G1rusProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
+            @Override
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
+                pipeline.addLast(new G1rusFrameDecoder());
+                pipeline.addLast(new StringEncoder());
+                pipeline.addLast(new G1rusProtocolDecoder(G1rusProtocol.this));
+            }
+        });
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/G1rusProtocolDecoder.java b/src/main/java/org/traccar/protocol/G1rusProtocolDecoder.java
new file mode 100644
index 000000000..17cfbc1eb
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/G1rusProtocolDecoder.java
@@ -0,0 +1,165 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.Protocol;
+import org.traccar.helper.BitUtil;
+import org.traccar.model.Position;
+import org.traccar.session.DeviceSession;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.Date;
+import java.util.LinkedList;
+import java.util.List;
+
+public class G1rusProtocolDecoder extends BaseProtocolDecoder {
+    public G1rusProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    public static final int MSG_HEARTBEAT = 0;
+    public static final int MSG_REGULAR = 1;
+    public static final int MSG_SMS_FORWARD = 2;
+    public static final int MSG_SERIAL = 3;
+    public static final int MSG_MIXED = 4;
+
+    private String readString(ByteBuf buf) {
+        int length = buf.readUnsignedByte() & 0xF;
+        return buf.readCharSequence(length, StandardCharsets.US_ASCII).toString();
+    }
+
+    private Position decodeRegular(DeviceSession deviceSession, ByteBuf buf, int type) {
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+        position.setTime(new Date((buf.readUnsignedIntLE() + 946684800) * 1000L));
+
+        if (BitUtil.check(type, 6)) {
+            position.set(Position.KEY_EVENT, buf.readUnsignedByte());
+        }
+
+        int dataMask = buf.readUnsignedShort();
+
+        if (BitUtil.check(dataMask, 0)) {
+            buf.readUnsignedByte(); // length
+            readString(buf); // device name
+            position.set(Position.KEY_VERSION_FW, readString(buf));
+            position.set(Position.KEY_VERSION_HW, readString(buf));
+        }
+
+        if (BitUtil.check(dataMask, 1)) {
+            buf.readUnsignedByte(); // length
+            int locationMask = buf.readUnsignedShort();
+            if (BitUtil.check(locationMask, 0)) {
+                int validity = buf.readUnsignedByte();
+                position.set(Position.KEY_SATELLITES, BitUtil.to(validity, 5));
+                position.setValid(BitUtil.between(validity, 5, 7) == 2);
+            }
+            if (BitUtil.check(locationMask, 1)) {
+                position.setLatitude(buf.readInt() / 1000000.0);
+                position.setLongitude(buf.readInt() / 1000000.0);
+            }
+            if (BitUtil.check(locationMask, 2)) {
+                position.setSpeed(buf.readUnsignedShort());
+            }
+            if (BitUtil.check(locationMask, 3)) {
+                position.setCourse(buf.readUnsignedShort());
+            }
+            if (BitUtil.check(locationMask, 4)) {
+                position.setAltitude(buf.readShort());
+            }
+            if (BitUtil.check(locationMask, 5)) {
+                position.set(Position.KEY_HDOP, buf.readUnsignedShort());
+            }
+            if (BitUtil.check(locationMask, 6)) {
+                position.set(Position.KEY_VDOP, buf.readUnsignedShort());
+            }
+        }
+
+        if (BitUtil.check(dataMask, 2)) {
+            buf.skipBytes(buf.readUnsignedByte());
+        }
+
+        if (BitUtil.check(dataMask, 3)) {
+            buf.skipBytes(buf.readUnsignedByte());
+        }
+
+        if (BitUtil.check(dataMask, 4)) {
+            buf.readUnsignedByte(); // length
+            position.set(Position.KEY_POWER, buf.readUnsignedShort() * 110 / 4096 - 10);
+            position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 110 / 4096 - 10);
+            position.set(Position.KEY_DEVICE_TEMP, buf.readUnsignedShort() * 110 / 4096 - 10);
+        }
+
+        if (BitUtil.check(dataMask, 5)) {
+            buf.skipBytes(buf.readUnsignedByte());
+        }
+
+        if (BitUtil.check(dataMask, 7)) {
+            buf.skipBytes(buf.readUnsignedByte());
+        }
+
+        return position;
+    }
+
+    @Override
+    protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        ByteBuf buf = (ByteBuf) msg;
+
+        buf.readUnsignedByte(); // header
+        buf.readUnsignedByte(); // version
+
+        int type = buf.readUnsignedByte();
+        String imei = String.valueOf(buf.readLong());
+        buf.readerIndex(buf.readerIndex() - 1);
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
+        if (deviceSession == null) {
+            return null;
+        }
+
+        if (BitUtil.to(type, 6) == MSG_REGULAR) {
+
+            return decodeRegular(deviceSession, buf, type);
+
+        } else if (BitUtil.to(type, 6) == MSG_MIXED) {
+
+            List<Position> positions = new LinkedList<>();
+            while (buf.readableBytes() > 5) {
+                int length = buf.readUnsignedShort();
+                int subtype = buf.readUnsignedByte();
+                if (BitUtil.to(subtype, 6) == MSG_REGULAR) {
+                    positions.add(decodeRegular(deviceSession, buf, subtype));
+                } else {
+                    buf.skipBytes(length - 1);
+                }
+            }
+            return positions.isEmpty() ? null : positions;
+
+        }
+
+        buf.readUnsignedShort(); // checksum
+        buf.readUnsignedByte(); // tail
+
+        return null;
+
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/GalileoFrameDecoder.java b/src/main/java/org/traccar/protocol/GalileoFrameDecoder.java
index c23d26c83..d90e48287 100644
--- a/src/main/java/org/traccar/protocol/GalileoFrameDecoder.java
+++ b/src/main/java/org/traccar/protocol/GalileoFrameDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2013 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,7 +22,7 @@ import org.traccar.BaseFrameDecoder;
 
 public class GalileoFrameDecoder extends BaseFrameDecoder {
 
-    private static final int MESSAGE_MINIMUM_LENGTH = 5;
+    private static final int MESSAGE_MINIMUM_LENGTH = 6;
 
     @Override
     protected Object decode(
@@ -32,9 +32,15 @@ public class GalileoFrameDecoder extends BaseFrameDecoder {
             return null;
         }
 
-        int length = buf.getUnsignedShortLE(buf.readerIndex() + 1) & 0x7fff;
-        if (buf.readableBytes() >= (length + MESSAGE_MINIMUM_LENGTH)) {
-            return buf.readRetainedSlice(length + MESSAGE_MINIMUM_LENGTH);
+        int length;
+        if (buf.getByte(buf.readerIndex()) == 0x01 && buf.getUnsignedMedium(buf.readerIndex() + 3) == 0x01001c) {
+            length = 3 + buf.getUnsignedShort(buf.readerIndex() + 1);
+        } else {
+            length = 5 + (buf.getUnsignedShortLE(buf.readerIndex() + 1) & 0x7fff);
+        }
+
+        if (buf.readableBytes() >= length) {
+            return buf.readRetainedSlice(length);
         }
 
         return null;
diff --git a/src/main/java/org/traccar/protocol/GalileoProtocol.java b/src/main/java/org/traccar/protocol/GalileoProtocol.java
index a1570c9b0..95ce4edde 100644
--- a/src/main/java/org/traccar/protocol/GalileoProtocol.java
+++ b/src/main/java/org/traccar/protocol/GalileoProtocol.java
@@ -18,17 +18,21 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class GalileoProtocol extends BaseProtocol {
 
-    public GalileoProtocol() {
+    @Inject
+    public GalileoProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM,
                 Command.TYPE_OUTPUT_CONTROL);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new GalileoFrameDecoder());
                 pipeline.addLast(new GalileoProtocolEncoder(GalileoProtocol.this));
                 pipeline.addLast(new GalileoProtocolDecoder(GalileoProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java b/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java
index f29fb9850..44baa94ea 100644
--- a/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2013 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,15 +20,19 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
+import org.traccar.config.Keys;
+import org.traccar.helper.BitBuffer;
+import org.traccar.helper.BitUtil;
 import org.traccar.helper.UnitsConverter;
+import org.traccar.helper.model.AttributeUtil;
 import org.traccar.model.Position;
+import org.traccar.session.DeviceSession;
 
 import java.net.SocketAddress;
 import java.nio.charset.StandardCharsets;
+import java.util.Calendar;
 import java.util.Date;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -36,6 +40,7 @@ import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.TimeZone;
 
 public class GalileoProtocolDecoder extends BaseProtocolDecoder {
 
@@ -44,6 +49,17 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder {
     }
 
     private ByteBuf photo;
+    private boolean compressed;
+
+    public void setCompressed(boolean compressed) {
+        this.compressed = compressed;
+    }
+
+    public boolean getCompressed(long deviceId) {
+        Boolean value = AttributeUtil.lookup(
+                getCacheManager(), Keys.PROTOCOL_EXTENDED.withPrefix(getProtocolName()), deviceId);
+        return value != null ? value : compressed;
+    }
 
     private static final Map<Integer, Integer> TAG_LENGTH_MAP = new HashMap<>();
 
@@ -64,7 +80,7 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder {
         };
         int[] l3 = {
             0x63, 0x64, 0x6f, 0x5d, 0x65, 0x66, 0x67, 0x68,
-            0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e
+            0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0xfa
         };
         int[] l4 = {
             0x20, 0x33, 0x44, 0x90, 0xc0, 0xc2, 0xc3, 0xd3,
@@ -86,6 +102,8 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder {
         }
         TAG_LENGTH_MAP.put(0x5b, 7); // variable length
         TAG_LENGTH_MAP.put(0x5c, 68);
+        TAG_LENGTH_MAP.put(0xfd, 8);
+        TAG_LENGTH_MAP.put(0xfe, 8);
     }
 
     private static int getTagLength(int tag) {
@@ -215,7 +233,6 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder {
                 break;
             case 0xea:
                 position.set("userDataArray", ByteBufUtil.hexDump(buf.readSlice(buf.readUnsignedByte())));
-                position.set("userDataArray", ByteBufUtil.hexDump(buf.readSlice(buf.readUnsignedByte())));
                 break;
             default:
                 buf.skipBytes(getTagLength(tag));
@@ -231,18 +248,105 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder {
 
         int header = buf.readUnsignedByte();
         if (header == 0x01) {
-            return decodePositions(channel, remoteAddress, buf);
+            if (buf.getUnsignedMedium(buf.readerIndex() + 2) == 0x01001c) {
+                return decodeIridiumPosition(channel, remoteAddress, buf);
+            } else {
+                return decodePositions(channel, remoteAddress, buf);
+            }
         } else if (header == 0x07) {
             return decodePhoto(channel, remoteAddress, buf);
+        } else if (header == 0x08) {
+            return decodeCompressedPositions(channel, remoteAddress, buf);
         }
 
         return null;
     }
 
-    private Object decodePositions(
-            Channel channel, SocketAddress remoteAddress, ByteBuf buf) throws Exception {
+    private void decodeMinimalDataSet(Position position, ByteBuf buf) {
+        BitBuffer bits = new BitBuffer(buf.readSlice(10));
+        bits.readUnsigned(1);
+
+        Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
+        calendar.set(Calendar.DAY_OF_YEAR, 1);
+        calendar.set(Calendar.HOUR_OF_DAY, calendar.getActualMinimum(Calendar.HOUR_OF_DAY));
+        calendar.set(Calendar.MINUTE, calendar.getActualMinimum(Calendar.MINUTE));
+        calendar.set(Calendar.SECOND, calendar.getActualMinimum(Calendar.SECOND));
+        calendar.set(Calendar.MILLISECOND, calendar.getActualMinimum(Calendar.MILLISECOND));
+        calendar.add(Calendar.SECOND, bits.readUnsigned(25));
+        position.setTime(calendar.getTime());
+
+        position.setValid(bits.readUnsigned(1) == 0);
+        position.setLongitude(360 * bits.readUnsigned(22) / 4194304.0 - 180);
+        position.setLatitude(180 * bits.readUnsigned(21) / 2097152.0 - 90);
+        if (bits.readUnsigned(1) > 0) {
+            position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
+        }
+    }
+
+    private Position decodeIridiumPosition(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
+
+        buf.readUnsignedShort(); // length
+
+        buf.skipBytes(3); // identification header
+        buf.readUnsignedInt(); // index
 
-        int length = (buf.readUnsignedShortLE() & 0x7fff) + 3;
+        DeviceSession deviceSession = getDeviceSession(
+                channel, remoteAddress, buf.readSlice(15).toString(StandardCharsets.US_ASCII));
+        if (deviceSession == null) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        buf.readUnsignedByte(); // session status
+        buf.skipBytes(4); // reserved
+        position.setTime(new Date(buf.readUnsignedInt() * 1000));
+
+        buf.skipBytes(3); // coordinates header
+        int flags = buf.readUnsignedByte();
+        double latitude = buf.readUnsignedByte() + buf.readUnsignedShort() / 60000.0;
+        double longitude = buf.readUnsignedByte() + buf.readUnsignedShort() / 60000.0;
+        position.setLatitude(BitUtil.check(flags, 1) ? -latitude : latitude);
+        position.setLongitude(BitUtil.check(flags, 0) ? -longitude : longitude);
+        buf.readUnsignedInt(); // accuracy
+
+        buf.readUnsignedByte(); // data tag header
+        ByteBuf data = buf.readSlice(buf.readUnsignedShort());
+        if (getCompressed(deviceSession.getDeviceId())) {
+
+            decodeMinimalDataSet(position, data);
+
+            int[] tags = new int[BitUtil.to(data.readUnsignedByte(), 8)];
+            for (int i = 0; i < tags.length; i++) {
+                tags[i] = data.readUnsignedByte();
+            }
+
+            for (int tag : tags) {
+                decodeTag(position, data, tag);
+            }
+
+        } else {
+
+            while (data.isReadable()) {
+                int tag = data.readUnsignedByte();
+                if (tag == 0x30) {
+                    position.setValid((data.readUnsignedByte() & 0xf0) == 0x00);
+                    position.setLatitude(data.readIntLE() / 1000000.0);
+                    position.setLongitude(data.readIntLE() / 1000000.0);
+                } else {
+                    decodeTag(position, data, tag);
+                }
+            }
+
+        }
+
+        return position;
+    }
+
+    private List<Position> decodePositions(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
+
+        int endIndex = (buf.readUnsignedShortLE() & 0x7fff) + buf.readerIndex();
 
         List<Position> positions = new LinkedList<>();
         Set<Integer> tags = new HashSet<>();
@@ -251,7 +355,7 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder {
         DeviceSession deviceSession = null;
         Position position = new Position(getProtocolName());
 
-        while (buf.readerIndex() < length) {
+        while (buf.readerIndex() < endIndex) {
 
             int tag = buf.readUnsignedByte();
             if (tags.contains(tag)) {
@@ -287,7 +391,7 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder {
 
         if (hasLocation && position.getFixTime() != null) {
             positions.add(position);
-        } else if (position.getAttributes().containsKey(Position.KEY_RESULT)) {
+        } else if (position.hasAttribute(Position.KEY_RESULT)) {
             position.setDeviceId(deviceSession.getDeviceId());
             getLastLocation(position, null);
             positions.add(position);
@@ -322,14 +426,13 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder {
         } else {
 
             DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
-            String uniqueId = Context.getIdentityManager().getById(deviceSession.getDeviceId()).getUniqueId();
 
             position = new Position(getProtocolName());
             position.setDeviceId(deviceSession.getDeviceId());
 
             getLastLocation(position, null);
 
-            position.set(Position.KEY_IMAGE, Context.getMediaManager().writeFile(uniqueId, photo, "jpg"));
+            position.set(Position.KEY_IMAGE, writeMediaFile(deviceSession.getUniqueId(), photo, "jpg"));
             photo.release();
             photo = null;
 
@@ -340,4 +443,43 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder {
         return position;
     }
 
+    private List<Position> decodeCompressedPositions(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
+
+        buf.readUnsignedShortLE(); // length
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+        if (deviceSession == null) {
+            return null;
+        }
+
+        List<Position> positions = new LinkedList<>();
+        while (buf.readableBytes() > 2) {
+
+            Position position = new Position(getProtocolName());
+            position.setDeviceId(deviceSession.getDeviceId());
+
+            decodeMinimalDataSet(position, buf);
+
+            int[] tags = new int[BitUtil.to(buf.readUnsignedByte(), 8)];
+            for (int i = 0; i < tags.length; i++) {
+                tags[i] = buf.readUnsignedByte();
+            }
+
+            for (int tag : tags) {
+                decodeTag(position, buf, tag);
+            }
+
+            positions.add(position);
+
+        }
+
+        sendResponse(channel, 0x02, buf.readUnsignedShortLE());
+
+        for (Position p : positions) {
+            p.setDeviceId(deviceSession.getDeviceId());
+        }
+
+        return positions.isEmpty() ? null : positions;
+    }
+
 }
diff --git a/src/main/java/org/traccar/protocol/GatorProtocol.java b/src/main/java/org/traccar/protocol/GatorProtocol.java
index ca81caefb..c961093ab 100644
--- a/src/main/java/org/traccar/protocol/GatorProtocol.java
+++ b/src/main/java/org/traccar/protocol/GatorProtocol.java
@@ -19,20 +19,27 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+import org.traccar.model.Command;
+
+import jakarta.inject.Inject;
 
 public class GatorProtocol extends BaseProtocol {
 
-    public GatorProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public GatorProtocol(Config config) {
+        setSupportedDataCommands(Command.TYPE_POSITION_SINGLE);
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 3, 2));
+                pipeline.addLast(new GatorProtocolEncoder(GatorProtocol.this));
                 pipeline.addLast(new GatorProtocolDecoder(GatorProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new GatorProtocolDecoder(GatorProtocol.this));
             }
         });
diff --git a/src/main/java/org/traccar/protocol/GatorProtocolDecoder.java b/src/main/java/org/traccar/protocol/GatorProtocolDecoder.java
index 087861635..f7da5dc75 100644
--- a/src/main/java/org/traccar/protocol/GatorProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GatorProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
@@ -37,6 +37,7 @@ public class GatorProtocolDecoder extends BaseProtocolDecoder {
     }
 
     public static final int MSG_HEARTBEAT = 0x21;
+    public static final int MSG_POSITION_REQUEST = 0x30;
     public static final int MSG_POSITION_DATA = 0x80;
     public static final int MSG_ROLLCALL_RESPONSE = 0x81;
     public static final int MSG_ALARM_DATA = 0x82;
diff --git a/src/main/java/org/traccar/protocol/GatorProtocolEncoder.java b/src/main/java/org/traccar/protocol/GatorProtocolEncoder.java
new file mode 100644
index 000000000..3d38b7455
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/GatorProtocolEncoder.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2023 Hossain Mohammad Seym (seym45@gmail.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import org.traccar.BaseProtocolEncoder;
+import org.traccar.Protocol;
+import org.traccar.helper.Checksum;
+import org.traccar.model.Command;
+
+public class GatorProtocolEncoder extends BaseProtocolEncoder {
+
+    public GatorProtocolEncoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    public ByteBuf encodeId(long deviceId) {
+        ByteBuf buf = Unpooled.buffer();
+
+        String id = getUniqueId(deviceId);
+
+        int firstDigit = Integer.parseInt(id.substring(1, 3)) - 30;
+
+        buf.writeByte(Integer.parseInt(id.substring(3, 5)) | (((firstDigit >> 3) & 1) << 7));
+        buf.writeByte(Integer.parseInt(id.substring(5, 7)) | (((firstDigit >> 2) & 1) << 7));
+        buf.writeByte(Integer.parseInt(id.substring(7, 9)) | (((firstDigit >> 1) & 1) << 7));
+        buf.writeByte(Integer.parseInt(id.substring(9)) | ((firstDigit & 1) << 7));
+
+        return buf;
+    }
+
+    private ByteBuf encodeContent(long deviceId, int type) {
+        ByteBuf buf = Unpooled.buffer();
+
+        buf.writeByte(0x24);
+        buf.writeByte(0x24);
+        buf.writeByte(type);
+        buf.writeByte(0x00);
+        buf.writeByte(4 + 1 + 1); // ip 4 bytes, checksum and end byte
+
+        ByteBuf pseudoIPAddress = encodeId(deviceId);
+        buf.writeBytes(pseudoIPAddress);
+
+        int checksum = Checksum.xor(buf.nioBuffer());
+        buf.writeByte(checksum);
+
+        buf.writeByte(0x0D);
+
+        return buf;
+    }
+
+    @Override
+    protected Object encodeCommand(Command command) {
+
+        switch (command.getType()) {
+            case Command.TYPE_POSITION_SINGLE:
+                return encodeContent(command.getDeviceId(), GatorProtocolDecoder.MSG_POSITION_REQUEST);
+            default:
+                return null;
+        }
+    }
+}
diff --git a/src/main/java/org/traccar/protocol/GenxProtocol.java b/src/main/java/org/traccar/protocol/GenxProtocol.java
index c87ba946a..7e5a6a69e 100644
--- a/src/main/java/org/traccar/protocol/GenxProtocol.java
+++ b/src/main/java/org/traccar/protocol/GenxProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class GenxProtocol extends BaseProtocol {
 
-    public GenxProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public GenxProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new GenxProtocolDecoder(GenxProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/GenxProtocolDecoder.java b/src/main/java/org/traccar/protocol/GenxProtocolDecoder.java
index 2ae9de7a0..6448b6a5a 100644
--- a/src/main/java/org/traccar/protocol/GenxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GenxProtocolDecoder.java
@@ -17,8 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
@@ -32,7 +31,11 @@ public class GenxProtocolDecoder extends BaseProtocolDecoder {
 
     public GenxProtocolDecoder(Protocol protocol) {
         super(protocol);
-        setReportColumns(Context.getConfig().getString(getProtocolName() + ".reportColumns", "1,2,3,4"));
+    }
+
+    @Override
+    protected void init() {
+        setReportColumns(getConfig().getString(getProtocolName() + ".reportColumns", "1,2,3,4"));
     }
 
     public void setReportColumns(String format) {
diff --git a/src/main/java/org/traccar/protocol/Gl100Protocol.java b/src/main/java/org/traccar/protocol/Gl100Protocol.java
index 063e606db..fdd79648f 100644
--- a/src/main/java/org/traccar/protocol/Gl100Protocol.java
+++ b/src/main/java/org/traccar/protocol/Gl100Protocol.java
@@ -21,22 +21,26 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Gl100Protocol extends BaseProtocol {
 
-    public Gl100Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Gl100Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '\0'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new Gl100ProtocolDecoder(Gl100Protocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new Gl100ProtocolDecoder(Gl100Protocol.this));
diff --git a/src/main/java/org/traccar/protocol/Gl100ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gl100ProtocolDecoder.java
index ae0383e5c..789d87dad 100644
--- a/src/main/java/org/traccar/protocol/Gl100ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gl100ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/Gl200BinaryProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gl200BinaryProtocolDecoder.java
index c3339bea5..ecd1f5bfa 100644
--- a/src/main/java/org/traccar/protocol/Gl200BinaryProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gl200BinaryProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitBuffer;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/Gl200Protocol.java b/src/main/java/org/traccar/protocol/Gl200Protocol.java
index e2d0c6d2a..e3ddbb46e 100644
--- a/src/main/java/org/traccar/protocol/Gl200Protocol.java
+++ b/src/main/java/org/traccar/protocol/Gl200Protocol.java
@@ -15,34 +15,37 @@
  */
 package org.traccar.protocol;
 
+import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
-import io.netty.handler.codec.string.StringEncoder;
+import jakarta.inject.Inject;
 
 public class Gl200Protocol extends BaseProtocol {
 
-    public Gl200Protocol() {
+    @Inject
+    public Gl200Protocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_POSITION_SINGLE,
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_ENGINE_RESUME,
                 Command.TYPE_IDENTIFICATION,
                 Command.TYPE_REBOOT_DEVICE);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new Gl200FrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new Gl200ProtocolEncoder(Gl200Protocol.this));
                 pipeline.addLast(new Gl200ProtocolDecoder(Gl200Protocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new Gl200ProtocolEncoder(Gl200Protocol.this));
                 pipeline.addLast(new Gl200ProtocolDecoder(Gl200Protocol.this));
diff --git a/src/main/java/org/traccar/protocol/Gl200ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gl200ProtocolDecoder.java
index ca1df7a13..9b4e05c35 100644
--- a/src/main/java/org/traccar/protocol/Gl200ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gl200ProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,12 +15,14 @@
  */
 package org.traccar.protocol;
 
+import com.google.inject.Injector;
 import org.traccar.BaseProtocolDecoder;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.Protocol;
 
+import jakarta.inject.Inject;
 import java.net.SocketAddress;
 
 public class Gl200ProtocolDecoder extends BaseProtocolDecoder {
@@ -34,6 +36,12 @@ public class Gl200ProtocolDecoder extends BaseProtocolDecoder {
         binaryProtocolDecoder = new Gl200BinaryProtocolDecoder(protocol);
     }
 
+    @Inject
+    public void setInjector(Injector injector) {
+        injector.injectMembers(textProtocolDecoder);
+        injector.injectMembers(binaryProtocolDecoder);
+    }
+
     @Override
     protected Object decode(
             Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
diff --git a/src/main/java/org/traccar/protocol/Gl200TextProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gl200TextProtocolDecoder.java
index 280986165..911af8d73 100644
--- a/src/main/java/org/traccar/protocol/Gl200TextProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gl200TextProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,9 +15,10 @@
  */
 package org.traccar.protocol;
 
+import io.netty.buffer.Unpooled;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.helper.DataConverter;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
@@ -46,11 +47,15 @@ import java.util.regex.Pattern;
 
 public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
 
-    private final boolean ignoreFixTime;
+    private boolean ignoreFixTime;
 
     public Gl200TextProtocolDecoder(Protocol protocol) {
         super(protocol);
-        ignoreFixTime = Context.getConfig().getBoolean(Keys.PROTOCOL_IGNORE_FIX_TIME.withPrefix(getProtocolName()));
+    }
+
+    @Override
+    protected void init() {
+        ignoreFixTime = getConfig().getBoolean(Keys.PROTOCOL_IGNORE_FIX_TIME.withPrefix(getProtocolName()));
     }
 
     private static final Pattern PATTERN_ACK = new PatternBuilder()
@@ -65,340 +70,6 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
             .text("$").optional()
             .compile();
 
-    private static final Pattern PATTERN_INF = new PatternBuilder()
-            .text("+").expression("(?:RESP|BUFF):GTINF,")
-            .number("[0-9A-Z]{2}xxxx,")          // protocol version
-            .number("(d{15}|x{14}),")            // imei
-            .expression("(?:[0-9A-Z]{17},)?")    // vin
-            .expression("(?:[^,]+)?,")           // device name
-            .number("(xx),")                     // state
-            .expression("(?:[0-9Ff]{20})?,")     // iccid
-            .number("(d{1,2}),")                 // rssi
-            .number("d{1,2},")
-            .expression("[01]{1,2},")            // external power
-            .number("([d.]+)?,")                 // odometer or external power
-            .number("d*,")                       // backup battery or lightness
-            .number("(d+.d+),")                  // battery
-            .expression("([01]),")               // charging
-            .number("(?:d),")                    // led
-            .number("(?:d)?,")                   // gps on need
-            .number("(?:d)?,")                   // gps antenna type
-            .number("(?:d)?,").optional()        // gps antenna state
-            .number("d{14},")                    // last fix time
-            .groupBegin()
-            .number("(d+),")                     // battery percentage
-            .number("[d.]*,")                    // flash type / power
-            .number("(-?[d.]+)?,,,")             // temperature
-            .or()
-            .expression("(?:[01])?,").optional() // pin15 mode
-            .number("(d+)?,")                    // adc1
-            .number("(d+)?,").optional()         // adc2
-            .number("(xx)?,")                    // digital input
-            .number("(xx)?,")                    // digital output
-            .number("[-+]dddd,")                 // timezone
-            .expression("[01],")                 // daylight saving
-            .or()
-            .any()
-            .groupEnd()
-            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
-            .number("(dd)(dd)(dd),")             // time (hhmmss)
-            .number("(xxxx)")                    // counter
-            .text("$").optional()
-            .compile();
-
-    private static final Pattern PATTERN_VER = new PatternBuilder()
-            .text("+").expression("(?:RESP|BUFF):GTVER,")
-            .number("[0-9A-Z]{2}xxxx,")          // protocol version
-            .number("(d{15}|x{14}),")            // imei
-            .expression("[^,]*,")                // device name
-            .expression("([^,]*),")              // device type
-            .number("(xxxx),")                   // firmware version
-            .number("(xxxx),")                   // hardware version
-            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
-            .number("(dd)(dd)(dd),")             // time (hhmmss)
-            .number("(xxxx)")                    // counter
-            .text("$").optional()
-            .compile();
-
-    private static final Pattern PATTERN_LOCATION = new PatternBuilder()
-            .number("(d{1,2}.?d?)?,")            // hdop
-            .number("(d{1,3}.d)?,")              // speed
-            .number("(d{1,3}.?d?)?,")            // course
-            .number("(-?d{1,5}.d)?,")            // altitude
-            .number("(-?d{1,3}.d{6})?,")         // longitude
-            .number("(-?d{1,2}.d{6})?,")         // latitude
-            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
-            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
-            .text(",")
-            .number("(d+)?,")                    // mcc
-            .number("(d+)?,")                    // mnc
-            .groupBegin()
-            .number("(d+),")                     // lac
-            .number("(d+),")                     // cid
-            .or()
-            .number("(x+)?,")                    // lac
-            .number("(x+)?,")                    // cid
-            .groupEnd()
-            .number("(?:d+|(d+.d))?,")           // rssi / odometer
-            .compile();
-
-    private static final Pattern PATTERN_OBD = new PatternBuilder()
-            .text("+RESP:GTOBD,")
-            .number("[0-9A-Z]{2}xxxx,")          // protocol version
-            .number("(d{15}|x{14}),")            // imei
-            .expression("(?:[0-9A-Z]{17})?,")    // vin
-            .expression("[^,]{0,20},")           // device name
-            .expression("[01],")                 // report type
-            .number("x{1,8},")                   // report mask
-            .expression("(?:[0-9A-Z]{17})?,")    // vin
-            .number("[01],")                     // obd connect
-            .number("(?:d{1,5})?,")              // obd voltage
-            .number("(?:x{8})?,")                // support pids
-            .number("(d{1,5})?,")                // engine rpm
-            .number("(d{1,3})?,")                // speed
-            .number("(-?d{1,3})?,")              // coolant temp
-            .number("(d+.?d*|Inf|NaN)?,")        // fuel consumption
-            .number("(d{1,5})?,")                // dtcs cleared distance
-            .number("(?:d{1,5})?,")
-            .expression("([01])?,")              // obd connect
-            .number("(d{1,3})?,")                // number of dtcs
-            .number("(x*),")                     // dtcs
-            .number("(d{1,3})?,")                // throttle
-            .number("(?:d{1,3})?,")              // engine load
-            .number("(d{1,3})?,")                // fuel level
-            .expression("(?:[0-9A],)?")          // obd protocol
-            .number("(d+),")                     // odometer
-            .expression(PATTERN_LOCATION.pattern())
-            .number("(d{1,7}.d)?,")              // odometer
-            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
-            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
-            .text(",")
-            .number("(xxxx)")                    // count number
-            .text("$").optional()
-            .compile();
-
-    private static final Pattern PATTERN_FRI = new PatternBuilder()
-            .text("+").expression("(?:RESP|BUFF):GT...,")
-            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
-            .number("(d{15}|x{14}),")            // imei
-            .expression("(?:([0-9A-Z]{17}),)?")  // vin
-            .expression("[^,]*,")                // device name
-            .number("(d+)?,")                    // power
-            .number("(d{1,2}),").optional()      // report type
-            .number("d{1,2},").optional()        // count
-            .number("d*,").optional()            // reserved
-            .number("(d+),").optional()          // battery
-            .expression("((?:")
-            .expression(PATTERN_LOCATION.pattern())
-            .expression(")+)")
-            .groupBegin()
-            .number("d{1,2},,")
-            .number("(d{1,3}),")                 // battery
-            .number("[01],")                     // mode
-            .number("(?:[01])?,")                // motion
-            .number("(?:-?d{1,2}.d)?,")          // temperature
-            .or()
-            .number("(d{1,7}.d)?,")              // odometer
-            .number("(d{5}:dd:dd)?,")            // hour meter
-            .number("(x+)?,")                    // adc 1
-            .number("(x+)?,")                    // adc 2
-            .number("(d{1,3})?,")                // battery
-            .number("(?:(xx)(xx)(xx))?,")        // device status
-            .number("(d+)?,")                    // rpm
-            .number("(?:d+.?d*|Inf|NaN)?,")      // fuel consumption
-            .number("(d+)?,")                    // fuel level
-            .or()
-            .number("(-?d),")                    // rssi
-            .number("(d{1,3}),")                 // battery
-            .or()
-            .number("(d{1,7}.d)?,").optional()   // odometer
-            .number("(d{1,3})?,")                // battery
-            .groupEnd()
-            .any()
-            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
-            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
-            .text(",")
-            .number("(xxxx)")                    // count number
-            .text("$").optional()
-            .compile();
-
-    private static final Pattern PATTERN_ERI = new PatternBuilder()
-            .text("+").expression("(?:RESP|BUFF):GTERI,")
-            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
-            .number("(d{15}|x{14}),")            // imei
-            .expression("[^,]*,")                // device name
-            .number("(x{8}),")                   // mask
-            .number("(d+)?,")                    // power
-            .number("d{1,2},")                   // report type
-            .number("d{1,2},")                   // count
-            .expression("((?:")
-            .expression(PATTERN_LOCATION.pattern())
-            .expression(")+)")
-            .groupBegin()
-            .number("(d{1,7}.d)?,")              // odometer
-            .number("(d{5}:dd:dd)?,")            // hour meter
-            .number("(x+)?,")                    // adc 1
-            .number("(x+)?,").optional()         // adc 2
-            .groupBegin()
-            .number("(x+)?,")                    // adc 3
-            .number("(xx),")                     // inputs
-            .number("(xx),")                     // outputs
-            .or()
-            .number("(d{1,3})?,")                // battery
-            .number("(?:(xx)(xx)(xx))?,")        // device status
-            .groupEnd()
-            .expression("(.*)")                  // additional data
-            .or()
-            .number("d*,,")
-            .number("(d+),")                     // battery
-            .any()
-            .groupEnd()
-            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
-            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
-            .text(",")
-            .number("(xxxx)")                    // count number
-            .text("$").optional()
-            .compile();
-
-    private static final Pattern PATTERN_IGN = new PatternBuilder()
-            .text("+").expression("(?:RESP|BUFF):GTIG[NF],")
-            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
-            .number("(d{15}|x{14}),")            // imei
-            .expression("[^,]*,")                // device name
-            .number("d+,")                       // ignition off duration
-            .expression(PATTERN_LOCATION.pattern())
-            .number("(d{5}:dd:dd)?,")            // hour meter
-            .number("(d{1,7}.d)?,")              // odometer
-            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
-            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
-            .text(",")
-            .number("(xxxx)")                    // count number
-            .text("$").optional()
-            .compile();
-
-    private static final Pattern PATTERN_LSW = new PatternBuilder()
-            .text("+RESP:").expression("GT[LT]SW,")
-            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
-            .number("(d{15}|x{14}),")            // imei
-            .expression("[^,]*,")                // device name
-            .number("[01],")                     // type
-            .number("([01]),")                   // state
-            .expression(PATTERN_LOCATION.pattern())
-            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
-            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
-            .text(",")
-            .number("(xxxx)")                    // count number
-            .text("$").optional()
-            .compile();
-
-    private static final Pattern PATTERN_IDA = new PatternBuilder()
-            .text("+RESP:GTIDA,")
-            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
-            .number("(d{15}|x{14}),")            // imei
-            .expression("[^,]*,,")               // device name
-            .number("([^,]+),")                  // rfid
-            .expression("[01],")                 // report type
-            .number("1,")                        // count
-            .expression(PATTERN_LOCATION.pattern())
-            .number("(d+.d),")                   // odometer
-            .text(",,,,")
-            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
-            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
-            .text(",")
-            .number("(xxxx)")                    // count number
-            .text("$").optional()
-            .compile();
-
-    private static final Pattern PATTERN_WIF = new PatternBuilder()
-            .text("+RESP:GTWIF,")
-            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
-            .number("(d{15}|x{14}),")            // imei
-            .expression("[^,]*,")                // device name
-            .number("(d+),")                     // count
-            .number("((?:x{12},-?d+,,,,)+),,,,") // wifi
-            .number("(d{1,3}),")                 // battery
-            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
-            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
-            .text(",")
-            .number("(xxxx)")                    // count number
-            .text("$").optional()
-            .compile();
-
-    private static final Pattern PATTERN_GSM = new PatternBuilder()
-            .text("+RESP:GTGSM,")
-            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
-            .number("(d{15}|x{14}),")            // imei
-            .expression("(?:STR|CTN|NMR|RTL),")  // fix type
-            .expression("(.*)")                  // cells
-            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
-            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
-            .text(",")
-            .number("(xxxx)")                    // count number
-            .text("$").optional()
-            .compile();
-
-    private static final Pattern PATTERN_PNA = new PatternBuilder()
-            .text("+RESP:GT").expression("P[NF]A,")
-            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
-            .number("(d{15}|x{14}),")            // imei
-            .expression("[^,]*,")                // device name
-            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
-            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
-            .text(",")
-            .number("(xxxx)")                    // count number
-            .text("$").optional()
-            .compile();
-
-    private static final Pattern PATTERN = new PatternBuilder()
-            .text("+").expression("(?:RESP|BUFF):GT...,")
-            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
-            .number("(d{15}|x{14}),")            // imei
-            .expression("[^,]*,")                // device name
-            .number("d*,")
-            .number("(x{1,2}),")                 // report type
-            .number("d{1,2},")                   // count
-            .expression(PATTERN_LOCATION.pattern())
-            .groupBegin()
-            .number("(d{1,7}.d)?,").optional()   // odometer
-            .number("(d{1,3})?,")                // battery
-            .or()
-            .number("(d{1,7}.d)?,")              // odometer
-            .groupEnd()
-            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
-            .number("(dd)(dd)(dd)")  // time (hhmmss)
-            .text(",")
-            .number("(xxxx)")                    // count number
-            .text("$").optional()
-            .compile();
-
-    private static final Pattern PATTERN_BASIC = new PatternBuilder()
-            .text("+").expression("(?:RESP|BUFF)").text(":")
-            .expression("GT...,")
-            .number("(?:[0-9A-Z]{2}xxxx)?,").optional() // protocol version
-            .number("(d{15}|x{14}),")            // imei
-            .any()
-            .text(",")
-            .number("(d{1,2})?,")                // hdop
-            .number("(d{1,3}.d)?,")              // speed
-            .number("(d{1,3})?,")                // course
-            .number("(-?d{1,5}.d)?,")            // altitude
-            .number("(-?d{1,3}.d{6})?,")         // longitude
-            .number("(-?d{1,2}.d{6})?,")         // latitude
-            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
-            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
-            .text(",")
-            .number("(d+),")                     // mcc
-            .number("(d+),")                     // mnc
-            .number("(x+),")                     // lac
-            .number("(x+),").optional(4)         // cell
-            .any()
-            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
-            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
-            .text(",")
-            .number("(xxxx)")                    // count number
-            .text("$").optional()
-            .compile();
-
     private Object decodeAck(Channel channel, SocketAddress remoteAddress, String sentence, String type) {
         Parser parser = new Parser(PATTERN_ACK, sentence);
         if (parser.matches()) {
@@ -450,13 +121,54 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
     private Long parseHours(String hoursString) {
         if (hoursString != null) {
             String[] hours = hoursString.split(":");
-            return (long) (Integer.parseInt(hours[0]) * 3600
-                    + (hours.length > 1 ? Integer.parseInt(hours[1]) * 60 : 0)
+            return (Integer.parseInt(hours[0]) * 3600L
+                    + (hours.length > 1 ? Integer.parseInt(hours[1]) * 60L : 0)
                     + (hours.length > 2 ? Integer.parseInt(hours[2]) : 0)) * 1000;
         }
         return null;
     }
 
+    private static final Pattern PATTERN_INF = new PatternBuilder()
+            .text("+").expression("(?:RESP|BUFF):GTINF,")
+            .number("[0-9A-Z]{2}xxxx,")          // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .expression("(?:[0-9A-Z]{17},)?")    // vin
+            .expression("(?:[^,]+)?,")           // device name
+            .number("(xx),")                     // state
+            .expression("(?:[0-9Ff]{20})?,")     // iccid
+            .number("(d{1,2}),")                 // rssi
+            .number("d{1,2},")
+            .expression("[01]{1,2},")            // external power
+            .number("([d.]+)?,")                 // odometer or external power
+            .number("d*,")                       // backup battery or lightness
+            .number("(d+.d+),")                  // battery
+            .expression("([01]),")               // charging
+            .number("(?:d),")                    // led
+            .number("(?:d)?,")                   // gps on need
+            .number("(?:d)?,")                   // gps antenna type
+            .number("(?:d)?,").optional()        // gps antenna state
+            .number("d{14},")                    // last fix time
+            .groupBegin()
+            .number("(d+),")                     // battery percentage
+            .number("[d.]*,")                    // flash type / power
+            .number("(-?[d.]+)?,,,")             // temperature
+            .or()
+            .expression("(?:[01])?,").optional() // pin15 mode
+            .number("(d+)?,")                    // adc1
+            .number("(d+)?,").optional()         // adc2
+            .number("(xx)?,")                    // digital input
+            .number("(xx)?,")                    // digital output
+            .number("[-+]dddd,")                 // timezone
+            .expression("[01],")                 // daylight saving
+            .or()
+            .any()
+            .groupEnd()
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd),")             // time (hhmmss)
+            .number("(xxxx)")                    // counter
+            .text("$").optional()
+            .compile();
+
     private Object decodeInf(Channel channel, SocketAddress remoteAddress, String sentence) {
         Parser parser = new Parser(PATTERN_INF, sentence);
         Position position = initPosition(parser, channel, remoteAddress);
@@ -517,6 +229,20 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
         return position;
     }
 
+    private static final Pattern PATTERN_VER = new PatternBuilder()
+            .text("+").expression("(?:RESP|BUFF):GTVER,")
+            .number("[0-9A-Z]{2}xxxx,")          // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .expression("[^,]*,")                // device name
+            .expression("([^,]*),")              // device type
+            .number("(xxxx),")                   // firmware version
+            .number("(xxxx),")                   // hardware version
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd),")             // time (hhmmss)
+            .number("(xxxx)")                    // counter
+            .text("$").optional()
+            .compile();
+
     private Object decodeVer(Channel channel, SocketAddress remoteAddress, String sentence) {
         Parser parser = new Parser(PATTERN_VER, sentence);
         Position position = initPosition(parser, channel, remoteAddress);
@@ -537,6 +263,28 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
         parser.skip(19);
     }
 
+    private static final Pattern PATTERN_LOCATION = new PatternBuilder()
+            .number("(d{1,2}.?d?)?,")            // hdop
+            .number("(d{1,3}.d)?,")              // speed
+            .number("(d{1,3}.?d?)?,")            // course
+            .number("(-?d{1,5}.d)?,")            // altitude
+            .number("(-?d{1,3}.d{6})?,")         // longitude
+            .number("(-?d{1,2}.d{6})?,")         // latitude
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
+            .text(",")
+            .number("(d+)?,")                    // mcc
+            .number("(d+)?,")                    // mnc
+            .groupBegin()
+            .number("(d+),")                     // lac
+            .number("(d+),")                     // cid
+            .or()
+            .number("(x+)?,")                    // lac
+            .number("(x+)?,")                    // cid
+            .groupEnd()
+            .number("(?:d+|(d+.d))?,")           // rssi / odometer
+            .compile();
+
     private void decodeLocation(Position position, Parser parser) {
         Double hdop = parser.nextDouble();
         position.setValid(hdop == null || hdop > 0);
@@ -571,6 +319,41 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
         }
     }
 
+    private static final Pattern PATTERN_OBD = new PatternBuilder()
+            .text("+RESP:GTOBD,")
+            .number("[0-9A-Z]{2}xxxx,")          // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .expression("(?:[0-9A-Z]{17})?,")    // vin
+            .expression("[^,]{0,20},")           // device name
+            .expression("[01],")                 // report type
+            .number("x{1,8},")                   // report mask
+            .expression("(?:[0-9A-Z]{17})?,")    // vin
+            .number("[01],")                     // obd connect
+            .number("(?:d{1,5})?,")              // obd voltage
+            .number("(?:x{8})?,")                // support pids
+            .number("(d{1,5})?,")                // engine rpm
+            .number("(d{1,3})?,")                // speed
+            .number("(-?d{1,3})?,")              // coolant temp
+            .number("(d+.?d*|Inf|NaN)?,")        // fuel consumption
+            .number("(d{1,5})?,")                // dtcs cleared distance
+            .number("(?:d{1,5})?,")
+            .expression("([01])?,")              // obd connect
+            .number("(d{1,3})?,")                // number of dtcs
+            .number("(x*),")                     // dtcs
+            .number("(d{1,3})?,")                // throttle
+            .number("(?:d{1,3})?,")              // engine load
+            .number("(d{1,3})?,")                // fuel level
+            .expression("(?:[0-9A],)?")          // obd protocol
+            .number("(d+),")                     // odometer
+            .expression(PATTERN_LOCATION.pattern())
+            .number("(d{1,7}.d)?,")              // odometer
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
+            .text(",")
+            .number("(xxxx)")                    // count number
+            .text("$").optional()
+            .compile();
+
     private Object decodeObd(Channel channel, SocketAddress remoteAddress, String sentence) {
         Parser parser = new Parser(PATTERN_OBD, sentence);
         Position position = initPosition(parser, channel, remoteAddress);
@@ -617,7 +400,7 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
         DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, values[index++]);
         position.setDeviceId(deviceSession.getDeviceId());
 
-        index += 1; // device name
+        String deviceName = values[index++];
         index += 1; // report type
         index += 1; // canbus state
         long reportMask = Long.parseLong(values[index++], 16);
@@ -659,11 +442,11 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
         if (BitUtil.check(reportMask, 11) && !values[index++].isEmpty()) {
             position.set(Position.KEY_HOURS, UnitsConverter.msFromHours(Double.parseDouble(values[index - 1])));
         }
-        if (BitUtil.check(reportMask, 12)) {
-            position.set("drivingHours", Double.parseDouble(values[index++]));
+        if (BitUtil.check(reportMask, 12) && !values[index++].isEmpty()) {
+            position.set(Position.KEY_DRIVING_TIME, Double.parseDouble(values[index - 1]));
         }
-        if (BitUtil.check(reportMask, 13)) {
-            position.set("idleHours", Double.parseDouble(values[index++]));
+        if (BitUtil.check(reportMask, 13) && !values[index++].isEmpty()) {
+            position.set("idleHours", Double.parseDouble(values[index - 1]));
         }
         if (BitUtil.check(reportMask, 14) && !values[index++].isEmpty()) {
             position.set("idleFuelConsumption", Double.parseDouble(values[index - 1]));
@@ -689,8 +472,19 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
         if (BitUtil.check(reportMask, 21) && !values[index++].isEmpty()) {
             position.set("engineOverspeed", Double.parseDouble(values[index - 1]));
         }
-        if (BitUtil.check(reportMask, 29)) {
-            reportMaskExt = Long.parseLong(values[index++], 16);
+        if ("GV350M".equals(deviceName)) {
+            if (BitUtil.check(reportMask, 22)) {
+                index += 1; // impulse distance
+            }
+            if (BitUtil.check(reportMask, 23)) {
+                index += 1; // gross vehicle weight
+            }
+            if (BitUtil.check(reportMask, 24)) {
+                index += 1; // catalyst liquid level
+            }
+        }
+        if (BitUtil.check(reportMask, 29) && !values[index++].isEmpty()) {
+            reportMaskExt = Long.parseLong(values[index - 1], 16);
         }
         if (BitUtil.check(reportMaskExt, 0) && !values[index++].isEmpty()) {
             position.set("adBlueLevel", Integer.parseInt(values[index - 1]));
@@ -821,6 +615,51 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
         }
     }
 
+    private static final Pattern PATTERN_FRI = new PatternBuilder()
+            .text("+").expression("(?:RESP|BUFF):GT...,")
+            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .expression("(?:([0-9A-Z]{17}),)?")  // vin
+            .expression("[^,]*,")                // device name
+            .number("(d+)?,")                    // power
+            .number("(d{1,2}),").optional()      // report type
+            .number("d{1,2},").optional()        // count
+            .number("d*,").optional()            // reserved
+            .number("(d+),").optional()          // battery
+            .expression("((?:")
+            .expression(PATTERN_LOCATION.pattern())
+            .expression(")+)")
+            .groupBegin()
+            .number("d{1,2},,")
+            .number("(d{1,3}),")                 // battery
+            .number("[01],")                     // mode
+            .number("(?:[01])?,")                // motion
+            .number("(?:-?d{1,2}.d)?,")          // temperature
+            .or()
+            .number("(d{1,7}.d)?,")              // odometer
+            .number("(d{5}:dd:dd)?,")            // hour meter
+            .number("(x+)?,")                    // adc 1
+            .number("(x+)?,")                    // adc 2
+            .number("(d{1,3})?,")                // battery
+            .number("(?:(xx)(xx)(xx))?,")        // device status
+            .number("(d+)?,")                    // rpm
+            .number("(?:d+.?d*|Inf|NaN)?,")      // fuel consumption
+            .number("(d+)?,")                    // fuel level
+            .or()
+            .number("(-?d),")                    // rssi
+            .number("(d{1,3}),")                 // battery
+            .or()
+            .number("(d{1,7}.d)?,").optional()   // odometer
+            .number("(d{1,3})?,")                // battery
+            .groupEnd()
+            .any()
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
+            .text(",")
+            .number("(xxxx)")                    // count number
+            .text("$").optional()
+            .compile();
+
     private Object decodeFri(Channel channel, SocketAddress remoteAddress, String sentence) {
         Parser parser = new Parser(PATTERN_FRI, sentence);
         if (!parser.matches()) {
@@ -901,6 +740,44 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
         return positions;
     }
 
+    private static final Pattern PATTERN_ERI = new PatternBuilder()
+            .text("+").expression("(?:RESP|BUFF):GTERI,")
+            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .expression("[^,]*,")                // device name
+            .number("(x{8}),")                   // mask
+            .number("(d+)?,")                    // power
+            .number("d{1,2},")                   // report type
+            .number("d{1,2},")                   // count
+            .expression("((?:")
+            .expression(PATTERN_LOCATION.pattern())
+            .expression(")+)")
+            .groupBegin()
+            .number("(d{1,7}.d)?,")              // odometer
+            .number("(d{5}:dd:dd)?,")            // hour meter
+            .number("(x+)?,")                    // adc 1
+            .number("(x+)?,").optional()         // adc 2
+            .groupBegin()
+            .number("(x+)?,")                    // adc 3
+            .number("(xx),")                     // inputs
+            .number("(xx),")                     // outputs
+            .or()
+            .number("(d{1,3})?,")                // battery
+            .number("(?:(xx)(xx)(xx))?,")        // device status
+            .groupEnd()
+            .expression("(.*)")                  // additional data
+            .or()
+            .number("d*,,")
+            .number("(d+),")                     // battery
+            .any()
+            .groupEnd()
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
+            .text(",")
+            .number("(xxxx)")                    // count number
+            .text("$").optional()
+            .compile();
+
     private Object decodeEri(Channel channel, SocketAddress remoteAddress, String sentence) {
         Parser parser = new Parser(PATTERN_ERI, sentence);
         if (!parser.matches()) {
@@ -936,7 +813,7 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
             position.set(Position.KEY_POWER, power * 0.001);
         }
 
-        if (parser.hasNext(12)) {
+        if (parser.hasNextAny(12)) {
 
             position.set(Position.KEY_ODOMETER, parser.nextDouble() * 1000);
             position.set(Position.KEY_HOURS, parseHours(parser.next()));
@@ -958,7 +835,7 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
             index += 1; // device type
 
             if (BitUtil.check(mask, 0)) {
-                index += 1; // digital fuel sensor data
+                position.set(Position.KEY_FUEL_LEVEL, Integer.parseInt(data[index++], 16));
             }
 
             if (BitUtil.check(mask, 1)) {
@@ -1004,6 +881,22 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
         return positions;
     }
 
+    private static final Pattern PATTERN_IGN = new PatternBuilder()
+            .text("+").expression("(?:RESP|BUFF):GTIG[NF],")
+            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .expression("[^,]*,")                // device name
+            .number("d+,")                       // ignition off duration
+            .expression(PATTERN_LOCATION.pattern())
+            .number("(d{5}:dd:dd)?,")            // hour meter
+            .number("(d{1,7}.d)?,")              // odometer
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
+            .text(",")
+            .number("(xxxx)")                    // count number
+            .text("$").optional()
+            .compile();
+
     private Object decodeIgn(Channel channel, SocketAddress remoteAddress, String sentence) {
         Parser parser = new Parser(PATTERN_IGN, sentence);
         Position position = initPosition(parser, channel, remoteAddress);
@@ -1022,6 +915,21 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
         return position;
     }
 
+    private static final Pattern PATTERN_LSW = new PatternBuilder()
+            .text("+RESP:").expression("GT[LT]SW,")
+            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .expression("[^,]*,")                // device name
+            .number("[01],")                     // type
+            .number("([01]),")                   // state
+            .expression(PATTERN_LOCATION.pattern())
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
+            .text(",")
+            .number("(xxxx)")                    // count number
+            .text("$").optional()
+            .compile();
+
     private Object decodeLsw(Channel channel, SocketAddress remoteAddress, String sentence) {
         Parser parser = new Parser(PATTERN_LSW, sentence);
         Position position = initPosition(parser, channel, remoteAddress);
@@ -1038,6 +946,24 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
         return position;
     }
 
+    private static final Pattern PATTERN_IDA = new PatternBuilder()
+            .text("+RESP:GTIDA,")
+            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .expression("[^,]*,,")               // device name
+            .number("([^,]+),")                  // rfid
+            .expression("[01],")                 // report type
+            .number("1,")                        // count
+            .expression(PATTERN_LOCATION.pattern())
+            .number("(d+.d),")                   // odometer
+            .text(",,,,")
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
+            .text(",")
+            .number("(xxxx)")                    // count number
+            .text("$").optional()
+            .compile();
+
     private Object decodeIda(Channel channel, SocketAddress remoteAddress, String sentence) {
         Parser parser = new Parser(PATTERN_IDA, sentence);
         Position position = initPosition(parser, channel, remoteAddress);
@@ -1056,6 +982,21 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
         return position;
     }
 
+    private static final Pattern PATTERN_WIF = new PatternBuilder()
+            .text("+RESP:GTWIF,")
+            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .expression("[^,]*,")                // device name
+            .number("(d+),")                     // count
+            .number("((?:x{12},-?d+,,,,)+),,,,") // wifi
+            .number("(d{1,3}),")                 // battery
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
+            .text(",")
+            .number("(xxxx)")                    // count number
+            .text("$").optional()
+            .compile();
+
     private Object decodeWif(Channel channel, SocketAddress remoteAddress, String sentence) {
         Parser parser = new Parser(PATTERN_WIF, sentence);
         Position position = initPosition(parser, channel, remoteAddress);
@@ -1082,6 +1023,19 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
         return position;
     }
 
+    private static final Pattern PATTERN_GSM = new PatternBuilder()
+            .text("+RESP:GTGSM,")
+            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .expression("(?:STR|CTN|NMR|RTL),")  // fix type
+            .expression("(.*)")                  // cells
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
+            .text(",")
+            .number("(xxxx)")                    // count number
+            .text("$").optional()
+            .compile();
+
     private Object decodeGsm(Channel channel, SocketAddress remoteAddress, String sentence) {
         Parser parser = new Parser(PATTERN_GSM, sentence);
         Position position = initPosition(parser, channel, remoteAddress);
@@ -1108,6 +1062,18 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
         return position;
     }
 
+    private static final Pattern PATTERN_PNA = new PatternBuilder()
+            .text("+RESP:GT").expression("P[NF]A,")
+            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .expression("[^,]*,")                // device name
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
+            .text(",")
+            .number("(xxxx)")                    // count number
+            .text("$").optional()
+            .compile();
+
     private Object decodePna(Channel channel, SocketAddress remoteAddress, String sentence) {
         Parser parser = new Parser(PATTERN_PNA, sentence);
         Position position = initPosition(parser, channel, remoteAddress);
@@ -1122,6 +1088,204 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
         return position;
     }
 
+    private static final Pattern PATTERN_DAR = new PatternBuilder()
+            .text("+RESP:GTDAR,")
+            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .expression("[^,]*,")                // device name
+            .number("(d),")                      // warning type
+            .number("(d{1,2}),,,")               // fatigue degree
+            .expression(PATTERN_LOCATION.pattern())
+            .any()
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
+            .text(",")
+            .number("(xxxx)")                    // count number
+            .text("$").optional()
+            .compile();
+
+    private Object decodeDar(Channel channel, SocketAddress remoteAddress, String sentence) {
+        Parser parser = new Parser(PATTERN_DAR, sentence);
+        Position position = initPosition(parser, channel, remoteAddress);
+        if (position == null) {
+            return null;
+        }
+
+        int warningType = parser.nextInt();
+        int fatigueDegree = parser.nextInt();
+        if (warningType == 1) {
+            position.set(Position.KEY_ALARM, Position.ALARM_FATIGUE_DRIVING);
+            position.set("fatigueDegree", fatigueDegree);
+        } else {
+            position.set("warningType", warningType);
+        }
+
+        decodeLocation(position, parser);
+
+        decodeDeviceTime(position, parser);
+
+        return position;
+    }
+
+    private static final Pattern PATTERN_DTT = new PatternBuilder()
+            .text("+RESP:GTDTT,")
+            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .expression("[^,]*,,,")              // device name
+            .number("d,")                        // data type
+            .number("d+,")                       // data length
+            .number("(x+),")                     // data
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
+            .text(",")
+            .number("(xxxx)")                    // count number
+            .text("$").optional()
+            .compile();
+
+    private Object decodeDtt(Channel channel, SocketAddress remoteAddress, String sentence) {
+        Parser parser = new Parser(PATTERN_DTT, sentence);
+        Position position = initPosition(parser, channel, remoteAddress);
+        if (position == null) {
+            return null;
+        }
+
+        getLastLocation(position, null);
+
+        String data = Unpooled.wrappedBuffer(DataConverter.parseHex(parser.next()))
+                .toString(StandardCharsets.US_ASCII);
+        if (data.contains("COMB")) {
+            String[] values = data.split(",");
+            position.set(Position.KEY_FUEL_LEVEL, Double.parseDouble(values[2]));
+        } else {
+            position.set(Position.KEY_RESULT, data);
+        }
+
+        decodeDeviceTime(position, parser);
+
+        return position;
+    }
+
+    private static final Pattern PATTERN_BAA = new PatternBuilder()
+            .text("+RESP:GTBAA,")
+            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .expression("[^,]*,")                // device name
+            .number("x+,")                       // index
+            .number("d,")                        // accessory type
+            .number("d,")                        // accessory model
+            .number("x+,")                       // alarm type
+            .number("(x{4}),")                   // append mask
+            .expression("((?:[^,]+,){0,6})")     // accessory optionals
+            .expression(PATTERN_LOCATION.pattern())
+            .any()
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
+            .text(",")
+            .number("(xxxx)")                    // count number
+            .text("$").optional()
+            .compile();
+
+    private Object decodeBaa(Channel channel, SocketAddress remoteAddress, String sentence) {
+        Parser parser = new Parser(PATTERN_BAA, sentence);
+        Position position = initPosition(parser, channel, remoteAddress);
+        if (position == null) {
+            return null;
+        }
+
+        int mask = parser.nextHexInt();
+        String[] values = parser.next().split(",");
+        int index = 0;
+        if (BitUtil.check(mask, 0)) {
+            position.set("accessoryName", values[index++]);
+        }
+        if (BitUtil.check(mask, 1)) {
+            position.set("accessoryMac", values[index++]);
+        }
+        if (BitUtil.check(mask, 2)) {
+            position.set("accessoryStatus", Integer.parseInt(values[index++]));
+        }
+        if (BitUtil.check(mask, 3)) {
+            position.set("accessoryVoltage", Integer.parseInt(values[index++]) * 0.001);
+        }
+        if (BitUtil.check(mask, 4)) {
+            position.set("accessoryTemp", Integer.parseInt(values[index++]));
+        }
+        if (BitUtil.check(mask, 5)) {
+            position.set("accessoryHumidity", Integer.parseInt(values[index]));
+        }
+
+        decodeLocation(position, parser);
+
+        decodeDeviceTime(position, parser);
+
+        return position;
+    }
+
+    private static final Pattern PATTERN_BID = new PatternBuilder()
+            .text("+RESP:GTBID,")
+            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .expression("[^,]*,")                // device name
+            .number("d,")                        // count
+            .number("d,")                        // accessory model
+            .number("(x{4}),")                   // append mask
+            .expression("((?:[^,]+,){0,2})")     // accessory optionals
+            .expression(PATTERN_LOCATION.pattern())
+            .any()
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
+            .text(",")
+            .number("(xxxx)")                    // count number
+            .text("$").optional()
+            .compile();
+
+    private Object decodeBid(Channel channel, SocketAddress remoteAddress, String sentence) {
+        Parser parser = new Parser(PATTERN_BID, sentence);
+        Position position = initPosition(parser, channel, remoteAddress);
+        if (position == null) {
+            return null;
+        }
+
+        int mask = parser.nextHexInt();
+        String[] values = parser.next().split(",");
+        int index = 0;
+        if (BitUtil.check(mask, 1)) {
+            position.set("accessoryMac", values[index++]);
+        }
+        if (BitUtil.check(mask, 3)) {
+            position.set("accessoryVoltage", Integer.parseInt(values[index]) * 0.001);
+        }
+
+        decodeLocation(position, parser);
+
+        decodeDeviceTime(position, parser);
+
+        return position;
+    }
+
+    private static final Pattern PATTERN = new PatternBuilder()
+            .text("+").expression("(?:RESP|BUFF):GT...,")
+            .number("(?:[0-9A-Z]{2}xxxx)?,")     // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .expression("[^,]*,")                // device name
+            .number("d*,")
+            .number("(x{1,2}),")                 // report type
+            .number("d{1,2},")                   // count
+            .number("d*,").optional()            // reserved
+            .expression(PATTERN_LOCATION.pattern())
+            .groupBegin()
+            .number("(?:(d{1,7}.d)|0)?,").optional() // odometer
+            .number("(d{1,3})?,")                // battery
+            .or()
+            .number("(d{1,7}.d)?,")              // odometer
+            .groupEnd()
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)")              // time (hhmmss)
+            .text(",")
+            .number("(xxxx)")                    // count number
+            .text("$").optional()
+            .compile();
+
     private Object decodeOther(Channel channel, SocketAddress remoteAddress, String sentence, String type) {
         Parser parser = new Parser(PATTERN, sentence);
         Position position = initPosition(parser, channel, remoteAddress);
@@ -1172,6 +1336,34 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
         return position;
     }
 
+    private static final Pattern PATTERN_BASIC = new PatternBuilder()
+            .text("+").expression("(?:RESP|BUFF)").text(":")
+            .expression("GT...,")
+            .number("(?:[0-9A-Z]{2}xxxx)?,").optional() // protocol version
+            .number("(d{15}|x{14}),")            // imei
+            .any()
+            .text(",")
+            .number("(d{1,2})?,")                // hdop
+            .number("(d{1,3}.d)?,")              // speed
+            .number("(d{1,3})?,")                // course
+            .number("(-?d{1,5}.d)?,")            // altitude
+            .number("(-?d{1,3}.d{6})?,")         // longitude
+            .number("(-?d{1,2}.d{6})?,")         // latitude
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
+            .text(",")
+            .number("(d+),")                     // mcc
+            .number("(d+),")                     // mnc
+            .number("(x+),")                     // lac
+            .number("(x+),").optional(4)         // cell
+            .any()
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)").optional(2)  // time (hhmmss)
+            .text(",")
+            .number("(xxxx)")                    // count number
+            .text("$").optional()
+            .compile();
+
     private Object decodeBasic(Channel channel, SocketAddress remoteAddress, String sentence, String type) {
         Parser parser = new Parser(PATTERN_BASIC, sentence);
         Position position = initPosition(parser, channel, remoteAddress);
@@ -1313,6 +1505,18 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
                 case "PFA":
                     result = decodePna(channel, remoteAddress, sentence);
                     break;
+                case "DAR":
+                    result = decodeDar(channel, remoteAddress, sentence);
+                    break;
+                case "DTT":
+                    result = decodeDtt(channel, remoteAddress, sentence);
+                    break;
+                case "BAA":
+                    result = decodeBaa(channel, remoteAddress, sentence);
+                    break;
+                case "BID":
+                    result = decodeBid(channel, remoteAddress, sentence);
+                    break;
                 default:
                     result = decodeOther(channel, remoteAddress, sentence, type);
                     break;
@@ -1333,7 +1537,7 @@ public class Gl200TextProtocolDecoder extends BaseProtocolDecoder {
             }
         }
 
-        if (channel != null && Context.getConfig().getBoolean(Keys.PROTOCOL_ACK.withPrefix(getProtocolName()))) {
+        if (channel != null && getConfig().getBoolean(Keys.PROTOCOL_ACK.withPrefix(getProtocolName()))) {
             String checksum;
             if (sentence.endsWith("$")) {
                 checksum = sentence.substring(sentence.length() - 1 - 4, sentence.length() - 1);
diff --git a/src/main/java/org/traccar/protocol/GlobalSatProtocol.java b/src/main/java/org/traccar/protocol/GlobalSatProtocol.java
index e86b5dc30..13f4f2646 100644
--- a/src/main/java/org/traccar/protocol/GlobalSatProtocol.java
+++ b/src/main/java/org/traccar/protocol/GlobalSatProtocol.java
@@ -21,18 +21,22 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class GlobalSatProtocol extends BaseProtocol {
 
-    public GlobalSatProtocol() {
+    @Inject
+    public GlobalSatProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM,
                 Command.TYPE_ALARM_DISMISS,
                 Command.TYPE_OUTPUT_CONTROL);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, "!\r\n", "!"));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java b/src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java
index b48df4047..720b61695 100644
--- a/src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java
@@ -17,8 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -40,9 +39,12 @@ public class GlobalSatProtocolDecoder extends BaseProtocolDecoder {
 
     public GlobalSatProtocolDecoder(Protocol protocol) {
         super(protocol);
+    }
 
-        format0 = Context.getConfig().getString(getProtocolName() + ".format0", "TSPRXAB27GHKLMnaicz*U!");
-        format1 = Context.getConfig().getString(getProtocolName() + ".format1", "SARY*U!");
+    @Override
+    protected void init() {
+        format0 = getConfig().getString(getProtocolName() + ".format0", "TSPRXAB27GHKLMnaicz*U!");
+        format1 = getConfig().getString(getProtocolName() + ".format1", "SARY*U!");
     }
 
     public void setFormat0(String format) {
diff --git a/src/main/java/org/traccar/protocol/GlobalstarProtocol.java b/src/main/java/org/traccar/protocol/GlobalstarProtocol.java
index 84cd5565b..1d9b6b6dd 100644
--- a/src/main/java/org/traccar/protocol/GlobalstarProtocol.java
+++ b/src/main/java/org/traccar/protocol/GlobalstarProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.http.HttpResponseEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class GlobalstarProtocol extends BaseProtocol {
 
-    public GlobalstarProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public GlobalstarProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HttpResponseEncoder());
                 pipeline.addLast(new HttpRequestDecoder());
                 pipeline.addLast(new HttpObjectAggregator(65535));
diff --git a/src/main/java/org/traccar/protocol/GlobalstarProtocolDecoder.java b/src/main/java/org/traccar/protocol/GlobalstarProtocolDecoder.java
index b742d0cac..0ddb95c14 100644
--- a/src/main/java/org/traccar/protocol/GlobalstarProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GlobalstarProtocolDecoder.java
@@ -27,7 +27,7 @@ import io.netty.handler.codec.http.HttpHeaderNames;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.handler.codec.http.HttpVersion;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -151,15 +151,11 @@ public class GlobalstarProtocolDecoder extends BaseHttpProtocolDecoder {
 
                 position.setCourse(BitUtil.from(flags, 5) * 45);
 
-                position.setLatitude(buf.readUnsignedMedium() * 90.0 / (1 << 23));
-                if (position.getLatitude() > 90) {
-                    position.setLatitude(position.getLatitude() - 180);
-                }
+                double latitude = buf.readUnsignedMedium() * 90.0 / (1 << 23);
+                position.setLatitude(latitude > 90 ? latitude - 180 : latitude);
 
-                position.setLongitude(buf.readUnsignedMedium() * 180.0 / (1 << 23));
-                if (position.getLongitude() > 180) {
-                    position.setLongitude(position.getLongitude() - 360);
-                }
+                double longitude = buf.readUnsignedMedium() * 180.0 / (1 << 23);
+                position.setLongitude(longitude > 180 ? longitude - 360 : longitude);
 
                 int speed = buf.readUnsignedByte();
                 position.setSpeed(UnitsConverter.knotsFromKph(speed));
diff --git a/src/main/java/org/traccar/protocol/GnxProtocol.java b/src/main/java/org/traccar/protocol/GnxProtocol.java
index 3576bf805..cfa496009 100644
--- a/src/main/java/org/traccar/protocol/GnxProtocol.java
+++ b/src/main/java/org/traccar/protocol/GnxProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class GnxProtocol extends BaseProtocol {
 
-    public GnxProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public GnxProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, "\n\r"));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/GnxProtocolDecoder.java b/src/main/java/org/traccar/protocol/GnxProtocolDecoder.java
index c9c221a69..9c8b6879a 100644
--- a/src/main/java/org/traccar/protocol/GnxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GnxProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/GoSafeProtocol.java b/src/main/java/org/traccar/protocol/GoSafeProtocol.java
index aaaffac97..c9c0456a0 100644
--- a/src/main/java/org/traccar/protocol/GoSafeProtocol.java
+++ b/src/main/java/org/traccar/protocol/GoSafeProtocol.java
@@ -21,22 +21,26 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class GoSafeProtocol extends BaseProtocol {
 
-    public GoSafeProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public GoSafeProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '#'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new GoSafeProtocolDecoder(GoSafeProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new GoSafeProtocolDecoder(GoSafeProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/GoSafeProtocolDecoder.java b/src/main/java/org/traccar/protocol/GoSafeProtocolDecoder.java
index a86249224..f17ea0e08 100644
--- a/src/main/java/org/traccar/protocol/GoSafeProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GoSafeProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -93,14 +93,14 @@ public class GoSafeProtocolDecoder extends BaseProtocolDecoder {
                     position.setSpeed(UnitsConverter.knotsFromKph(Integer.parseInt(values[index - 1])));
                 }
                 position.setCourse(Integer.parseInt(values[index++]));
-                if (index < values.length) {
-                    position.setAltitude(Integer.parseInt(values[index++]));
+                if (index < values.length && !values[index++].isEmpty()) {
+                    position.setAltitude(Integer.parseInt(values[index - 1]));
                 }
-                if (index < values.length) {
-                    position.set(Position.KEY_HDOP, Double.parseDouble(values[index++]));
+                if (index < values.length && !values[index++].isEmpty()) {
+                    position.set(Position.KEY_HDOP, Double.parseDouble(values[index - 1]));
                 }
-                if (index < values.length) {
-                    position.set(Position.KEY_VDOP, Double.parseDouble(values[index++]));
+                if (index < values.length && !values[index++].isEmpty()) {
+                    position.set(Position.KEY_VDOP, Double.parseDouble(values[index - 1]));
                 }
                 break;
             case "GSM":
diff --git a/src/main/java/org/traccar/protocol/GotopProtocol.java b/src/main/java/org/traccar/protocol/GotopProtocol.java
index 07fe02248..21fbbae99 100644
--- a/src/main/java/org/traccar/protocol/GotopProtocol.java
+++ b/src/main/java/org/traccar/protocol/GotopProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class GotopProtocol extends BaseProtocol {
 
-    public GotopProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public GotopProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '#'));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/GotopProtocolDecoder.java b/src/main/java/org/traccar/protocol/GotopProtocolDecoder.java
index a867451aa..5c8d0bac2 100644
--- a/src/main/java/org/traccar/protocol/GotopProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GotopProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2013 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
@@ -35,7 +35,7 @@ public class GotopProtocolDecoder extends BaseProtocolDecoder {
 
     private static final Pattern PATTERN = new PatternBuilder()
             .number("(d+),")                     // imei
-            .expression("[^,]+,")                // type
+            .expression("([^,]+),")              // type
             .expression("([AV]),")               // validity
             .number("DATE:(dd)(dd)(dd),")        // date (yyddmm)
             .number("TIME:(dd)(dd)(dd),")        // time (hhmmss)
@@ -56,14 +56,25 @@ public class GotopProtocolDecoder extends BaseProtocolDecoder {
             return null;
         }
 
-        Position position = new Position(getProtocolName());
-
         DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
         if (deviceSession == null) {
             return null;
         }
+
+        Position position = new Position(getProtocolName());
         position.setDeviceId(deviceSession.getDeviceId());
 
+        String type = parser.next();
+        if (type.equals("CMD-KEY")) {
+            position.set(Position.KEY_ALARM, Position.ALARM_SOS);
+        } else if (type.startsWith("ALM-B")) {
+            if (Character.getNumericValue(type.charAt(5)) % 2 > 0) {
+                position.set(Position.KEY_ALARM, Position.ALARM_GEOFENCE_ENTER);
+            } else {
+                position.set(Position.KEY_ALARM, Position.ALARM_GEOFENCE_EXIT);
+            }
+        }
+
         position.setValid(parser.next().equals("A"));
 
         position.setTime(parser.nextDateTime());
diff --git a/src/main/java/org/traccar/protocol/Gps056Protocol.java b/src/main/java/org/traccar/protocol/Gps056Protocol.java
index b6ab10a19..44fc392be 100644
--- a/src/main/java/org/traccar/protocol/Gps056Protocol.java
+++ b/src/main/java/org/traccar/protocol/Gps056Protocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Gps056Protocol extends BaseProtocol {
 
-    public Gps056Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Gps056Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new Gps056FrameDecoder());
                 pipeline.addLast(new Gps056ProtocolDecoder(Gps056Protocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/Gps056ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gps056ProtocolDecoder.java
index 0ba79bb51..eea64364e 100644
--- a/src/main/java/org/traccar/protocol/Gps056ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gps056ProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/Gps103Protocol.java b/src/main/java/org/traccar/protocol/Gps103Protocol.java
index 5356387ce..8424abfe5 100644
--- a/src/main/java/org/traccar/protocol/Gps103Protocol.java
+++ b/src/main/java/org/traccar/protocol/Gps103Protocol.java
@@ -21,11 +21,15 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class Gps103Protocol extends BaseProtocol {
 
-    public Gps103Protocol() {
+    @Inject
+    public Gps103Protocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM,
                 Command.TYPE_POSITION_SINGLE,
@@ -36,9 +40,9 @@ public class Gps103Protocol extends BaseProtocol {
                 Command.TYPE_ALARM_ARM,
                 Command.TYPE_ALARM_DISARM,
                 Command.TYPE_REQUEST_PHOTO);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(2048, false, "\r\n", "\n", ";", "*"));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
@@ -46,9 +50,9 @@ public class Gps103Protocol extends BaseProtocol {
                 pipeline.addLast(new Gps103ProtocolDecoder(Gps103Protocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new Gps103ProtocolEncoder(Gps103Protocol.this));
diff --git a/src/main/java/org/traccar/protocol/Gps103ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gps103ProtocolDecoder.java
index d74f19179..d1c35b478 100644
--- a/src/main/java/org/traccar/protocol/Gps103ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gps103ProtocolDecoder.java
@@ -19,8 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DataConverter;
@@ -57,9 +56,12 @@ public class Gps103ProtocolDecoder extends BaseProtocolDecoder {
             .groupEnd()
             .expression("([^,]+)?,")             // rfid
             .groupBegin()
-            .text("L,,,")
+            .text("L,")
+            .groupBegin()
+            .text(",,")
             .number("(x+),,")                    // lac
             .number("(x+),,,")                   // cid
+            .groupEnd("?")
             .or()
             .text("F,")
             .groupBegin()
@@ -203,7 +205,7 @@ public class Gps103ProtocolDecoder extends BaseProtocolDecoder {
             position.set(Position.PREFIX_TEMP + 1, Double.parseDouble(alarm.substring(2)));
         } else if (alarm.startsWith("oil ")) {
             position.set(Position.KEY_FUEL_LEVEL, Double.parseDouble(alarm.substring(4)));
-        } else if (!position.getAttributes().containsKey(Position.KEY_ALARM) && !alarm.equals("tracker")) {
+        } else if (!position.hasAttribute(Position.KEY_ALARM) && !alarm.equals("tracker")) {
             position.set(Position.KEY_EVENT, alarm);
         }
 
@@ -219,12 +221,11 @@ public class Gps103ProtocolDecoder extends BaseProtocolDecoder {
         }
 
         if (parser.hasNext(2)) {
+            position.setNetwork(new Network(CellTower.fromLacCid(
+                    getConfig(), parser.nextHexInt(0), parser.nextHexInt(0))));
+        }
 
-            getLastLocation(position, null);
-
-            position.setNetwork(new Network(CellTower.fromLacCid(parser.nextHexInt(0), parser.nextHexInt(0))));
-
-        } else {
+        if (parser.hasNextAny(20)) {
 
             String utcHours = parser.next();
             String utcMinutes = parser.next();
@@ -262,6 +263,10 @@ public class Gps103ProtocolDecoder extends BaseProtocolDecoder {
             position.set("fuel2", parser.nextDouble());
             position.set(Position.PREFIX_TEMP + 1, parser.nextInt());
 
+        } else {
+
+            getLastLocation(position, null);
+
         }
 
         return position;
@@ -361,7 +366,7 @@ public class Gps103ProtocolDecoder extends BaseProtocolDecoder {
             getLastLocation(position, null);
 
             try {
-                position.set(Position.KEY_IMAGE, Context.getMediaManager().writeFile(imei, photo, "jpg"));
+                position.set(Position.KEY_IMAGE, writeMediaFile(imei, photo, "jpg"));
             } finally {
                 photoPackets = 0;
                 photo.release();
diff --git a/src/main/java/org/traccar/protocol/Gps103ProtocolEncoder.java b/src/main/java/org/traccar/protocol/Gps103ProtocolEncoder.java
index e662e9b04..9a899eeeb 100644
--- a/src/main/java/org/traccar/protocol/Gps103ProtocolEncoder.java
+++ b/src/main/java/org/traccar/protocol/Gps103ProtocolEncoder.java
@@ -49,7 +49,7 @@ public class Gps103ProtocolEncoder extends StringProtocolEncoder implements Stri
             case Command.TYPE_CUSTOM:
                 return formatCommand(command, "**,imei:%s,%s", Command.KEY_UNIQUE_ID, Command.KEY_DATA);
             case Command.TYPE_POSITION_STOP:
-                return formatCommand(command, "**,imei:%s,A", Command.KEY_UNIQUE_ID);
+                return formatCommand(command, "**,imei:%s,D", Command.KEY_UNIQUE_ID);
             case Command.TYPE_POSITION_SINGLE:
                 return formatCommand(command, "**,imei:%s,B", Command.KEY_UNIQUE_ID);
             case Command.TYPE_POSITION_PERIODIC:
diff --git a/src/main/java/org/traccar/protocol/GpsGateProtocol.java b/src/main/java/org/traccar/protocol/GpsGateProtocol.java
index a131b6f48..db1e8554a 100644
--- a/src/main/java/org/traccar/protocol/GpsGateProtocol.java
+++ b/src/main/java/org/traccar/protocol/GpsGateProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class GpsGateProtocol extends BaseProtocol {
 
-    public GpsGateProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public GpsGateProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, "\0", "\n", "\r\n"));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java b/src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java
index c158d3212..82da58f1e 100644
--- a/src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/GpsMarkerProtocol.java b/src/main/java/org/traccar/protocol/GpsMarkerProtocol.java
index ad23ece48..f50088b2b 100644
--- a/src/main/java/org/traccar/protocol/GpsMarkerProtocol.java
+++ b/src/main/java/org/traccar/protocol/GpsMarkerProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class GpsMarkerProtocol extends BaseProtocol {
 
-    public GpsMarkerProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public GpsMarkerProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, "\r"));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/GpsMarkerProtocolDecoder.java b/src/main/java/org/traccar/protocol/GpsMarkerProtocolDecoder.java
index bbb2c31e2..0fef4b7da 100644
--- a/src/main/java/org/traccar/protocol/GpsMarkerProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GpsMarkerProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/GpsmtaProtocol.java b/src/main/java/org/traccar/protocol/GpsmtaProtocol.java
index ce6cc5929..e146a816d 100644
--- a/src/main/java/org/traccar/protocol/GpsmtaProtocol.java
+++ b/src/main/java/org/traccar/protocol/GpsmtaProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class GpsmtaProtocol extends BaseProtocol {
 
-    public GpsmtaProtocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public GpsmtaProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new GpsmtaProtocolDecoder(GpsmtaProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/GpsmtaProtocolDecoder.java b/src/main/java/org/traccar/protocol/GpsmtaProtocolDecoder.java
index 31f9401b4..a9b85d255 100644
--- a/src/main/java/org/traccar/protocol/GpsmtaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GpsmtaProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/GranitProtocol.java b/src/main/java/org/traccar/protocol/GranitProtocol.java
index 244c3977b..9ca0fe25e 100644
--- a/src/main/java/org/traccar/protocol/GranitProtocol.java
+++ b/src/main/java/org/traccar/protocol/GranitProtocol.java
@@ -19,11 +19,15 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class GranitProtocol extends BaseProtocol {
 
-    public GranitProtocol() {
+    @Inject
+    public GranitProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_IDENTIFICATION,
                 Command.TYPE_REBOOT_DEVICE,
@@ -32,9 +36,9 @@ public class GranitProtocol extends BaseProtocol {
         setSupportedTextCommands(
                 Command.TYPE_REBOOT_DEVICE,
                 Command.TYPE_POSITION_PERIODIC);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new GranitFrameDecoder());
                 pipeline.addLast(new GranitProtocolEncoder(GranitProtocol.this));
                 pipeline.addLast(new GranitProtocolDecoder(GranitProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/GranitProtocolDecoder.java b/src/main/java/org/traccar/protocol/GranitProtocolDecoder.java
index 292e43a0e..dfc3c10f6 100644
--- a/src/main/java/org/traccar/protocol/GranitProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GranitProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/Gs100Protocol.java b/src/main/java/org/traccar/protocol/Gs100Protocol.java
index a701815d0..715d48fc4 100644
--- a/src/main/java/org/traccar/protocol/Gs100Protocol.java
+++ b/src/main/java/org/traccar/protocol/Gs100Protocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Gs100Protocol extends BaseProtocol {
 
-    public Gs100Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Gs100Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new Gs100ProtocolDecoder(Gs100Protocol.this));
             }
         });
diff --git a/src/main/java/org/traccar/protocol/Gs100ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gs100ProtocolDecoder.java
index 2496aad48..352070107 100644
--- a/src/main/java/org/traccar/protocol/Gs100ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gs100ProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
diff --git a/src/main/java/org/traccar/protocol/Gt02Protocol.java b/src/main/java/org/traccar/protocol/Gt02Protocol.java
index f412ee720..f448feacc 100644
--- a/src/main/java/org/traccar/protocol/Gt02Protocol.java
+++ b/src/main/java/org/traccar/protocol/Gt02Protocol.java
@@ -19,13 +19,17 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Gt02Protocol extends BaseProtocol {
 
-    public Gt02Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Gt02Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(256, 2, 1, 2, 0));
                 pipeline.addLast(new Gt02ProtocolDecoder(Gt02Protocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/Gt02ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gt02ProtocolDecoder.java
index 78a3fd3ee..4ecb0b43b 100644
--- a/src/main/java/org/traccar/protocol/Gt02ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gt02ProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/Gt06Protocol.java b/src/main/java/org/traccar/protocol/Gt06Protocol.java
index 9ec8de098..945ec3831 100644
--- a/src/main/java/org/traccar/protocol/Gt06Protocol.java
+++ b/src/main/java/org/traccar/protocol/Gt06Protocol.java
@@ -18,18 +18,22 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class Gt06Protocol extends BaseProtocol {
 
-    public Gt06Protocol() {
+    @Inject
+    public Gt06Protocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_ENGINE_RESUME,
                 Command.TYPE_CUSTOM);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new Gt06FrameDecoder());
                 pipeline.addLast(new Gt06ProtocolEncoder(Gt06Protocol.this));
                 pipeline.addLast(new Gt06ProtocolDecoder(Gt06Protocol.this));
diff --git a/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java
index feacc1ae8..161d04d8d 100644
--- a/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
-Supp * Copyright 2012 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,8 +20,8 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.helper.BufferUtil;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
@@ -32,7 +32,6 @@ import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.CellTower;
-import org.traccar.model.Device;
 import org.traccar.model.Network;
 import org.traccar.model.Position;
 import org.traccar.model.WifiAccessPoint;
@@ -75,15 +74,16 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
     public static final int MSG_LBS_EXTEND = 0x18;
     public static final int MSG_LBS_STATUS = 0x19;
     public static final int MSG_GPS_PHONE = 0x1A;
-    public static final int MSG_GPS_LBS_EXTEND = 0x1E;
-    public static final int MSG_HEARTBEAT = 0x23;
-    public static final int MSG_ADDRESS_REQUEST = 0x2A;
-    public static final int MSG_ADDRESS_RESPONSE = 0x97;
-    public static final int MSG_GPS_LBS_5 = 0x31;
-    public static final int MSG_GPS_LBS_STATUS_4 = 0x32;
-    public static final int MSG_WIFI_5 = 0x33;
-    public static final int MSG_AZ735_GPS = 0x32; // only extended
-    public static final int MSG_AZ735_ALARM = 0x33; // only extended
+    public static final int MSG_GPS_LBS_EXTEND = 0x1E;     // JI09
+    public static final int MSG_HEARTBEAT = 0x23;          // GK310
+    public static final int MSG_ADDRESS_REQUEST = 0x2A;    // GK310
+    public static final int MSG_ADDRESS_RESPONSE = 0x97;   // GK310
+    public static final int MSG_GPS_LBS_5 = 0x31;          // AZ735 & SL4X
+    public static final int MSG_GPS_LBS_STATUS_4 = 0x32;   // AZ735 & SL4X
+    public static final int MSG_WIFI_5 = 0x33;             // AZ735 & SL4X
+    public static final int MSG_LBS_3 = 0x34;              // SL4X
+    public static final int MSG_AZ735_GPS = 0x32;          // AZ735 (extended)
+    public static final int MSG_AZ735_ALARM = 0x33;        // AZ735 (only extended)
     public static final int MSG_X1_GPS = 0x34;
     public static final int MSG_X1_PHOTO_INFO = 0x35;
     public static final int MSG_X1_PHOTO_DATA = 0x36;
@@ -93,33 +93,67 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
     public static final int MSG_COMMAND_0 = 0x80;
     public static final int MSG_COMMAND_1 = 0x81;
     public static final int MSG_COMMAND_2 = 0x82;
-    public static final int MSG_TIME_REQUEST = 0x8A;
+    public static final int MSG_TIME_REQUEST = 0x8A;       // GK310
     public static final int MSG_INFO = 0x94;
     public static final int MSG_SERIAL = 0x9B;
     public static final int MSG_STRING_INFO = 0x21;
-    public static final int MSG_GPS_2 = 0xA0;
-    public static final int MSG_LBS_2 = 0xA1;
-    public static final int MSG_WIFI_3 = 0xA2;
-    public static final int MSG_FENCE_SINGLE = 0xA3;
-    public static final int MSG_FENCE_MULTI = 0xA4;
-    public static final int MSG_LBS_ALARM = 0xA5;
-    public static final int MSG_LBS_ADDRESS = 0xA7;
-    public static final int MSG_OBD = 0x8C;
-    public static final int MSG_DTC = 0x65;
-    public static final int MSG_PID = 0x66;
-    public static final int MSG_BMS = 0x20;
-    public static final int MSG_MULTIMEDIA = 0x21;
-    public static final int MSG_BMS_2 = 0x40;
-    public static final int MSG_MULTIMEDIA_2 = 0x41;
-    public static final int MSG_ALARM = 0x95;
+    public static final int MSG_GPS_LBS_7 = 0xA0;          // GK310 & JM-VL03
+    public static final int MSG_LBS_2 = 0xA1;              // GK310
+    public static final int MSG_WIFI_3 = 0xA2;             // GK310
+    public static final int MSG_FENCE_SINGLE = 0xA3;       // GK310
+    public static final int MSG_FENCE_MULTI = 0xA4;        // GK310 & JM-LL301
+    public static final int MSG_LBS_ALARM = 0xA5;          // GK310 & JM-LL301
+    public static final int MSG_LBS_ADDRESS = 0xA7;        // GK310
+    public static final int MSG_OBD = 0x8C;                // FM08ABC
+    public static final int MSG_DTC = 0x65;                // FM08ABC
+    public static final int MSG_PID = 0x66;                // FM08ABC
+    public static final int MSG_BMS = 0x40;                // WD-209
+    public static final int MSG_MULTIMEDIA = 0x41;         // WD-209
+    public static final int MSG_ALARM = 0x95;              // JC100
 
     private enum Variant {
         VXT01,
+        WANWAY_S20,
+        SR411_MINI,
+        GT06E_CARD,
+        BENWAY,
+        S5,
+        SPACE10X,
         STANDARD,
+        OBD6,
+        WETRUST,
+        JC400,
+        SL4X,
     }
 
     private Variant variant;
 
+    private static final Pattern PATTERN_FUEL = new PatternBuilder()
+            .text("!AIOIL,")
+            .number("d+,")                       // device address
+            .number("d+.d+,")                    // output value
+            .number("(d+.d+),")                  // temperature
+            .expression("[^,]+,")                // version
+            .number("dd")                        // back wave
+            .number("d")                         // software status code
+            .number("d,")                        // hardware status code
+            .number("(d+.d+),")                  // measured value
+            .expression("[01],")                 // movement status
+            .number("d+,")                       // excited wave times
+            .number("xx")                        // checksum
+            .compile();
+
+    private static final Pattern PATTERN_LOCATION = new PatternBuilder()
+            .text("Current position!")
+            .number("Lat:([NS])(d+.d+),")        // latitude
+            .number("Lon:([EW])(d+.d+),")        // longitude
+            .text("Course:").number("(d+.d+),")  // course
+            .text("Speed:").number("(d+.d+),")   // speed
+            .text("DateTime:")
+            .number("(dddd)-(dd)-(dd) +")        // date
+            .number("(dd):(dd):(dd)")            // time
+            .compile();
+
     private static boolean isSupported(int type) {
         return hasGps(type) || hasLbs(type) || hasStatus(type);
     }
@@ -139,7 +173,7 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
             case MSG_GPS_LBS_STATUS_4:
             case MSG_GPS_PHONE:
             case MSG_GPS_LBS_EXTEND:
-            case MSG_GPS_2:
+            case MSG_GPS_LBS_7:
             case MSG_FENCE_SINGLE:
             case MSG_FENCE_MULTI:
                 return true;
@@ -161,7 +195,7 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
             case MSG_GPS_LBS_STATUS_2:
             case MSG_GPS_LBS_STATUS_3:
             case MSG_GPS_LBS_STATUS_4:
-            case MSG_GPS_2:
+            case MSG_GPS_LBS_7:
             case MSG_FENCE_SINGLE:
             case MSG_FENCE_MULTI:
             case MSG_LBS_ALARM:
@@ -180,6 +214,8 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
             case MSG_GPS_LBS_STATUS_2:
             case MSG_GPS_LBS_STATUS_3:
             case MSG_GPS_LBS_STATUS_4:
+            case MSG_FENCE_MULTI:
+            case MSG_LBS_ALARM:
                 return true;
             default:
                 return false;
@@ -236,12 +272,12 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
     }
 
     public static boolean decodeGps(Position position, ByteBuf buf, boolean hasLength, TimeZone timezone) {
-        return decodeGps(position, buf, hasLength, true, true, timezone);
+        return decodeGps(position, buf, hasLength, true, true, false, timezone);
     }
 
     public static boolean decodeGps(
             Position position, ByteBuf buf, boolean hasLength, boolean hasSatellites,
-            boolean hasSpeed, TimeZone timezone) {
+            boolean hasSpeed, boolean longSpeed, TimeZone timezone) {
 
         DateBuilder dateBuilder = new DateBuilder(timezone)
                 .setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
@@ -260,7 +296,8 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
         double longitude = buf.readUnsignedInt() / 60.0 / 30000.0;
 
         if (hasSpeed) {
-            position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte()));
+            position.setSpeed(UnitsConverter.knotsFromKph(
+                    longSpeed ? buf.readUnsignedShort() : buf.readUnsignedByte()));
         }
 
         int flags = buf.readUnsignedShort();
@@ -305,9 +342,26 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
         }
 
         int mcc = buf.readUnsignedShort();
-        int mnc = BitUtil.check(mcc, 15) || type == MSG_GPS_LBS_6 ? buf.readUnsignedShort() : buf.readUnsignedByte();
-        int lac = buf.readUnsignedShort();
-        long cid = type == MSG_GPS_LBS_6 ? buf.readUnsignedInt() : buf.readUnsignedMedium();
+        int mnc;
+        if (BitUtil.check(mcc, 15) || type == MSG_GPS_LBS_6) {
+            mnc = buf.readUnsignedShort();
+        } else {
+            mnc = buf.readUnsignedByte();
+        }
+        int lac;
+        if (type == MSG_LBS_ALARM || type == MSG_GPS_LBS_7) {
+            lac = buf.readInt();
+        } else {
+            lac = buf.readUnsignedShort();
+        }
+        long cid;
+        if (type == MSG_LBS_ALARM || type == MSG_GPS_LBS_7) {
+            cid = buf.readLong();
+        } else if (type == MSG_GPS_LBS_6) {
+            cid = buf.readUnsignedInt();
+        } else {
+            cid = buf.readUnsignedMedium();
+        }
 
         position.setNetwork(new Network(CellTower.from(BitUtil.to(mcc, 15), mnc, lac, cid)));
 
@@ -318,7 +372,7 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
         return true;
     }
 
-    private boolean decodeStatus(Position position, ByteBuf buf, boolean batteryLevel) {
+    private void decodeStatus(Position position, ByteBuf buf) {
 
         int status = buf.readUnsignedByte();
 
@@ -353,15 +407,6 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
             default:
                 break;
         }
-
-        if (batteryLevel) {
-            position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte() * 100 / 6);
-        } else {
-            position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01);
-        }
-        position.set(Position.KEY_RSSI, buf.readUnsignedByte());
-
-        return true;
     }
 
     private String decodeAlarm(short value) {
@@ -381,13 +426,20 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
                 return Position.ALARM_OVERSPEED;
             case 0x0E:
             case 0x0F:
+            case 0x19:
                 return Position.ALARM_LOW_BATTERY;
             case 0x11:
                 return Position.ALARM_POWER_OFF;
+            case 0x0C:
             case 0x13:
+            case 0x25:
                 return Position.ALARM_TAMPERING;
             case 0x14:
                 return Position.ALARM_DOOR;
+            case 0x18:
+                return Position.ALARM_REMOVING;
+            case 0x23:
+                return Position.ALARM_FALL_DOWN;
             case 0x29:
                 return Position.ALARM_ACCELERATION;
             case 0x30:
@@ -397,81 +449,27 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
                 return Position.ALARM_CORNERING;
             case 0x2C:
                 return Position.ALARM_ACCIDENT;
-            case 0x23:
-                return Position.ALARM_FALL_DOWN;
             default:
                 return null;
         }
     }
 
-    private static final Pattern PATTERN_FUEL = new PatternBuilder()
-            .text("!AIOIL,")
-            .number("d+,")                       // device address
-            .number("d+.d+,")                    // output value
-            .number("(d+.d+),")                  // temperature
-            .expression("[^,]+,")                // version
-            .number("dd")                        // back wave
-            .number("d")                         // software status code
-            .number("d,")                        // hardware status code
-            .number("(d+.d+),")                  // measured value
-            .expression("[01],")                 // movement status
-            .number("d+,")                       // excited wave times
-            .number("xx")                        // checksum
-            .compile();
-
-    private Position decodeFuelData(Position position, String sentence) {
-        Parser parser = new Parser(PATTERN_FUEL, sentence);
-        if (!parser.matches()) {
-            return null;
-        }
-
-        position.set(Position.PREFIX_TEMP + 1, parser.nextDouble(0));
-        position.set(Position.KEY_FUEL_LEVEL, parser.nextDouble(0));
-
-        return position;
-    }
-
-    private static final Pattern PATTERN_LOCATION = new PatternBuilder()
-            .text("Current position!")
-            .number("Lat:([NS])(d+.d+),")        // latitude
-            .number("Lon:([EW])(d+.d+),")        // longitude
-            .text("Course:").number("(d+.d+),")  // course
-            .text("Speed:").number("(d+.d+),")   // speed
-            .text("DateTime:")
-            .number("(dddd)-(dd)-(dd) +")        // date
-            .number("(dd):(dd):(dd)")            // time
-            .compile();
-
-    private Position decodeLocationString(Position position, String sentence) {
-        Parser parser = new Parser(PATTERN_LOCATION, sentence);
-        if (!parser.matches()) {
-            return null;
-        }
-
-        position.setValid(true);
-        position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG));
-        position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG));
-        position.setCourse(parser.nextDouble());
-        position.setSpeed(parser.nextDouble());
-        position.setTime(parser.nextDateTime(Parser.DateTimeFormat.YMD_HMS));
-
-        return position;
-    }
-
     private Object decodeBasic(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
 
         int length = buf.readUnsignedByte();
         int dataLength = length - 5;
         int type = buf.readUnsignedByte();
 
+        Position position = new Position(getProtocolName());
         DeviceSession deviceSession = null;
         if (type != MSG_LOGIN) {
             deviceSession = getDeviceSession(channel, remoteAddress);
             if (deviceSession == null) {
                 return null;
             }
-            if (deviceSession.getTimeZone() == null) {
-                deviceSession.setTimeZone(getTimeZone(deviceSession.getDeviceId()));
+            position.setDeviceId(deviceSession.getDeviceId());
+            if (!deviceSession.contains(DeviceSession.KEY_TIMEZONE)) {
+                deviceSession.set(DeviceSession.KEY_TIMEZONE, getTimeZone(deviceSession.getDeviceId()));
             }
         }
 
@@ -481,8 +479,8 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
             buf.readUnsignedShort(); // type
 
             deviceSession = getDeviceSession(channel, remoteAddress, imei);
-            if (deviceSession != null && deviceSession.getTimeZone() == null) {
-                deviceSession.setTimeZone(getTimeZone(deviceSession.getDeviceId()));
+            if (deviceSession != null && !deviceSession.contains(DeviceSession.KEY_TIMEZONE)) {
+                deviceSession.set(DeviceSession.KEY_TIMEZONE, getTimeZone(deviceSession.getDeviceId()));
             }
 
             if (dataLength > 10) {
@@ -494,23 +492,21 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
                     offset = -offset;
                 }
                 if (deviceSession != null) {
-                    TimeZone timeZone = deviceSession.getTimeZone();
+                    TimeZone timeZone = deviceSession.get(DeviceSession.KEY_TIMEZONE);
                     if (timeZone.getRawOffset() == 0) {
                         timeZone.setRawOffset(offset * 1000);
-                        deviceSession.setTimeZone(timeZone);
+                        deviceSession.set(DeviceSession.KEY_TIMEZONE, timeZone);
                     }
                 }
-
             }
 
             if (deviceSession != null) {
                 sendResponse(channel, false, type, buf.getShort(buf.writerIndex() - 6), null);
             }
 
-        } else if (type == MSG_HEARTBEAT) {
+            return null;
 
-            Position position = new Position(getProtocolName());
-            position.setDeviceId(deviceSession.getDeviceId());
+        } else if (type == MSG_HEARTBEAT) {
 
             getLastLocation(position, null);
 
@@ -539,6 +535,8 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
             content.writeBytes(response.getBytes(StandardCharsets.US_ASCII));
             sendResponse(channel, true, MSG_ADDRESS_RESPONSE, 0, content);
 
+            return null;
+
         } else if (type == MSG_TIME_REQUEST) {
 
             Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
@@ -551,44 +549,13 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
             content.writeByte(calendar.get(Calendar.SECOND));
             sendResponse(channel, false, MSG_TIME_REQUEST, 0, content);
 
-        } else if (type == MSG_X1_GPS || type == MSG_X1_PHOTO_INFO) {
-
-            return decodeX1(channel, buf, deviceSession, type);
-
-        } else if (type == MSG_WIFI || type == MSG_WIFI_2 || type == MSG_WIFI_4) {
-
-            return decodeWifi(channel, buf, deviceSession, type);
-
-        } else if (type == MSG_INFO) {
-
-            Position position = new Position(getProtocolName());
-            position.setDeviceId(deviceSession.getDeviceId());
-
-            getLastLocation(position, null);
-
-            position.set(Position.KEY_POWER, buf.readShort() * 0.01);
-
-            return position;
-
-        } else {
-
-            return decodeBasicOther(channel, buf, deviceSession, type, dataLength);
-
-        }
-
-        return null;
-    }
-
-    private Object decodeX1(Channel channel, ByteBuf buf, DeviceSession deviceSession, int type) {
-
-        if (type == MSG_X1_GPS) {
+            return null;
 
-            Position position = new Position(getProtocolName());
-            position.setDeviceId(deviceSession.getDeviceId());
+        } else if (type == MSG_X1_GPS && variant != Variant.SL4X) {
 
             buf.readUnsignedInt(); // data and alarm
 
-            decodeGps(position, buf, false, deviceSession.getTimeZone());
+            decodeGps(position, buf, false, deviceSession.get(DeviceSession.KEY_TIMEZONE));
 
             buf.readUnsignedShort(); // terminal info
 
@@ -632,125 +599,135 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
             photos.put(pictureId, photo);
             sendPhotoRequest(channel, pictureId);
 
-        }
-
-        return null;
-    }
+            return null;
 
-    private Object decodeWifi(Channel channel, ByteBuf buf, DeviceSession deviceSession, int type) {
+        } else if (type == MSG_WIFI || type == MSG_WIFI_2 || type == MSG_WIFI_4) {
 
-        Position position = new Position(getProtocolName());
-        position.setDeviceId(deviceSession.getDeviceId());
+            ByteBuf time = buf.readSlice(6);
+            DateBuilder dateBuilder = new DateBuilder()
+                    .setYear(BcdUtil.readInteger(time, 2))
+                    .setMonth(BcdUtil.readInteger(time, 2))
+                    .setDay(BcdUtil.readInteger(time, 2))
+                    .setHour(BcdUtil.readInteger(time, 2))
+                    .setMinute(BcdUtil.readInteger(time, 2))
+                    .setSecond(BcdUtil.readInteger(time, 2));
+            getLastLocation(position, dateBuilder.getDate());
 
-        ByteBuf time = buf.readSlice(6);
-        DateBuilder dateBuilder = new DateBuilder()
-                .setYear(BcdUtil.readInteger(time, 2))
-                .setMonth(BcdUtil.readInteger(time, 2))
-                .setDay(BcdUtil.readInteger(time, 2))
-                .setHour(BcdUtil.readInteger(time, 2))
-                .setMinute(BcdUtil.readInteger(time, 2))
-                .setSecond(BcdUtil.readInteger(time, 2));
-        getLastLocation(position, dateBuilder.getDate());
-
-        Network network = new Network();
-
-        int wifiCount;
-        if (type == MSG_WIFI_4) {
-            wifiCount = buf.readUnsignedByte();
-        } else {
-            wifiCount = buf.getUnsignedByte(2);
-        }
+            Network network = new Network();
 
-        for (int i = 0; i < wifiCount; i++) {
+            int wifiCount;
             if (type == MSG_WIFI_4) {
-                buf.skipBytes(2);
+                wifiCount = buf.readUnsignedByte();
+            } else {
+                wifiCount = buf.getUnsignedByte(2);
             }
-            WifiAccessPoint wifiAccessPoint = new WifiAccessPoint();
-            wifiAccessPoint.setMacAddress(String.format("%02x:%02x:%02x:%02x:%02x:%02x",
-                    buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte(),
-                    buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte()));
-            if (type != MSG_WIFI_4) {
-                wifiAccessPoint.setSignalStrength((int) buf.readUnsignedByte());
+
+            for (int i = 0; i < wifiCount; i++) {
+                if (type == MSG_WIFI_4) {
+                    buf.skipBytes(2);
+                }
+                WifiAccessPoint wifiAccessPoint = new WifiAccessPoint();
+                wifiAccessPoint.setMacAddress(String.format("%02x:%02x:%02x:%02x:%02x:%02x",
+                        buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte(),
+                        buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte()));
+                if (type != MSG_WIFI_4) {
+                    wifiAccessPoint.setSignalStrength((int) buf.readUnsignedByte());
+                }
+                network.addWifiAccessPoint(wifiAccessPoint);
             }
-            network.addWifiAccessPoint(wifiAccessPoint);
-        }
 
-        if (type != MSG_WIFI_4) {
+            if (type != MSG_WIFI_4) {
 
-            int cellCount = buf.readUnsignedByte();
-            int mcc = buf.readUnsignedShort();
-            int mnc = buf.readUnsignedByte();
-            for (int i = 0; i < cellCount; i++) {
-                network.addCellTower(CellTower.from(
-                        mcc, mnc, buf.readUnsignedShort(), buf.readUnsignedShort(), buf.readUnsignedByte()));
-            }
+                int cellCount = buf.readUnsignedByte();
+                int mcc = buf.readUnsignedShort();
+                int mnc = buf.readUnsignedByte();
+                for (int i = 0; i < cellCount; i++) {
+                    network.addCellTower(CellTower.from(
+                            mcc, mnc, buf.readUnsignedShort(), buf.readUnsignedShort(), buf.readUnsignedByte()));
+                }
+
+                if (channel != null) {
+                    ByteBuf response = Unpooled.buffer();
+                    response.writeShort(0x7878);
+                    response.writeByte(0);
+                    response.writeByte(type);
+                    response.writeBytes(time.resetReaderIndex());
+                    response.writeByte('\r');
+                    response.writeByte('\n');
+                    channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress()));
+                }
 
-            if (channel != null) {
-                ByteBuf response = Unpooled.buffer();
-                response.writeShort(0x7878);
-                response.writeByte(0);
-                response.writeByte(type);
-                response.writeBytes(time.resetReaderIndex());
-                response.writeByte('\r');
-                response.writeByte('\n');
-                channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress()));
             }
 
-        }
+            position.setNetwork(network);
 
-        position.setNetwork(network);
+            return position;
 
-        return position;
-    }
+        } else if (type == MSG_INFO) {
 
-    private Object decodeBasicOther(
-            Channel channel, ByteBuf buf, DeviceSession deviceSession, int type, int dataLength) {
+            getLastLocation(position, null);
 
-        Position position = new Position(getProtocolName());
-        position.setDeviceId(deviceSession.getDeviceId());
+            position.set(Position.KEY_POWER, buf.readShort() * 0.01);
+
+            return position;
 
-        if (type == MSG_LBS_STATUS && dataLength >= 18) {
+        } else if (type == MSG_LBS_MULTIPLE_3 && variant == Variant.SR411_MINI) {
 
-            return null; // space10x multi-lbs message
+            decodeGps(position, buf, false, deviceSession.get(DeviceSession.KEY_TIMEZONE));
+
+            decodeLbs(position, buf, type, false);
+
+            position.set(Position.KEY_IGNITION, buf.readUnsignedByte() > 0);
+            position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01);
+            position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.01);
+
+            return position;
 
         } else if (type == MSG_LBS_MULTIPLE_1 || type == MSG_LBS_MULTIPLE_2 || type == MSG_LBS_MULTIPLE_3
-                || type == MSG_LBS_EXTEND || type == MSG_LBS_WIFI || type == MSG_LBS_2
+                || type == MSG_LBS_EXTEND || type == MSG_LBS_WIFI || type == MSG_LBS_2 || type == MSG_LBS_3
                 || type == MSG_WIFI_3 || type == MSG_WIFI_5) {
 
-            boolean longFormat = type == MSG_LBS_2 || type == MSG_WIFI_3 || type == MSG_WIFI_5;
-
-            DateBuilder dateBuilder = new DateBuilder(deviceSession.getTimeZone())
+            DateBuilder dateBuilder = new DateBuilder((TimeZone) deviceSession.get(DeviceSession.KEY_TIMEZONE))
                     .setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
                     .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
 
             getLastLocation(position, dateBuilder.getDate());
 
-            boolean hasCellCount = type == MSG_LBS_MULTIPLE_3 && dataLength == 44;
-
-            if (hasCellCount) {
+            if (variant == Variant.WANWAY_S20 || variant == Variant.SL4X) {
                 buf.readUnsignedByte(); // ta
             }
 
             int mcc = buf.readUnsignedShort();
-            int mnc = BitUtil.check(mcc, 15) ? buf.readUnsignedShort() : buf.readUnsignedByte();
+            int mnc = BitUtil.check(mcc, 15) || variant == Variant.SL4X
+                    ? buf.readUnsignedShort() : buf.readUnsignedByte();
             Network network = new Network();
 
-            int cellCount = hasCellCount ? buf.readUnsignedByte() : type == MSG_WIFI_5 ? 6 : 7;
+            int cellCount = variant == Variant.WANWAY_S20 ? buf.readUnsignedByte() : type == MSG_WIFI_5 ? 6 : 7;
             for (int i = 0; i < cellCount; i++) {
-                int lac = longFormat ? buf.readInt() : buf.readUnsignedShort();
-                int cid = longFormat ? (int) buf.readLong() : buf.readUnsignedMedium();
+                int lac;
+                int cid;
+                if (type == MSG_LBS_2 || type == MSG_WIFI_3) {
+                    lac = buf.readInt();
+                    cid = (int) buf.readLong();
+                } else if (type == MSG_WIFI_5 || type == MSG_LBS_3) {
+                    lac = buf.readUnsignedShort();
+                    cid = (int) buf.readUnsignedInt();
+                } else {
+                    lac = buf.readUnsignedShort();
+                    cid = buf.readUnsignedMedium();
+                }
                 int rssi = -buf.readUnsignedByte();
                 if (lac > 0) {
                     network.addCellTower(CellTower.from(BitUtil.to(mcc, 15), mnc, lac, cid, rssi));
                 }
             }
 
-            if (!hasCellCount) {
+            if (variant != Variant.WANWAY_S20 && variant != Variant.SL4X) {
                 buf.readUnsignedByte(); // ta
             }
 
             if (type != MSG_LBS_MULTIPLE_1 && type != MSG_LBS_MULTIPLE_2 && type != MSG_LBS_MULTIPLE_3
-                    && type != MSG_LBS_2) {
+                    && type != MSG_LBS_2 && type != MSG_LBS_3) {
                 int wifiCount = buf.readUnsignedByte();
                 for (int i = 0; i < wifiCount; i++) {
                     String mac = ByteBufUtil.hexDump(buf.readSlice(6)).replaceAll("(..)", "$1:");
@@ -777,7 +754,7 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
                 }
             }
 
-        } else if (type == MSG_BMS || type == MSG_BMS_2) {
+        } else if (type == MSG_BMS) {
 
             buf.skipBytes(8); // serial number
 
@@ -809,35 +786,199 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
 
             return position;
 
+        } else if (type == MSG_STATUS && buf.readableBytes() == 22) {
+
+            getLastLocation(position, null);
+
+            buf.readUnsignedByte(); // information content
+            buf.readUnsignedShort(); // satellites
+            buf.readUnsignedByte(); // alarm
+            buf.readUnsignedByte(); // language
+
+            position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte());
+
+            buf.readUnsignedByte(); // working mode
+            buf.readUnsignedShort(); // working voltage
+            buf.readUnsignedByte(); // reserved
+            buf.readUnsignedShort(); // working times
+            buf.readUnsignedShort(); // working time
+
+            int value = buf.readUnsignedShort();
+            double temperature = BitUtil.to(value, 15) * 0.1;
+            position.set(Position.PREFIX_TEMP + 1, BitUtil.check(value, 15) ? temperature : -temperature);
+
         } else if (isSupported(type)) {
 
-            if (type == MSG_STATUS && buf.readableBytes() == 22) {
-                decodeHeartbeat(buf, position);
+            if (type == MSG_LBS_STATUS && variant == Variant.SPACE10X) {
+                return null; // multi-lbs message
+            }
+
+            if (hasGps(type)) {
+                decodeGps(position, buf, false, deviceSession.get(DeviceSession.KEY_TIMEZONE));
             } else {
-                decodeBasicUniversal(buf, deviceSession, type, position);
+                getLastLocation(position, null);
+            }
+
+            if (hasLbs(type) && buf.readableBytes() > 6) {
+                boolean hasLength = hasStatus(type)
+                        && type != MSG_LBS_STATUS
+                        && type != MSG_LBS_ALARM
+                        && (type != MSG_GPS_LBS_STATUS_1 || variant != Variant.VXT01);
+                decodeLbs(position, buf, type, hasLength);
+            }
+
+            if (hasStatus(type)) {
+                decodeStatus(position, buf);
+                if (variant == Variant.OBD6) {
+                    int signal = buf.readUnsignedShort();
+                    int satellites = BitUtil.between(signal, 10, 15) + BitUtil.between(signal, 5, 10);
+                    position.set(Position.KEY_SATELLITES, satellites);
+                    position.set(Position.KEY_RSSI, BitUtil.to(signal, 5));
+                    position.set(Position.KEY_ALARM, decodeAlarm(buf.readUnsignedByte()));
+                    buf.readUnsignedByte(); // language
+                    position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte());
+                    buf.readUnsignedByte(); // working mode
+                    position.set(Position.KEY_POWER, buf.readUnsignedShort() / 100.0);
+                } else {
+                    position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte() * 100 / 6);
+                    position.set(Position.KEY_RSSI, buf.readUnsignedByte());
+                    short alarmExtension = buf.readUnsignedByte();
+                    if (variant != Variant.VXT01) {
+                        position.set(Position.KEY_ALARM, decodeAlarm(alarmExtension));
+                    }
+                }
+            }
+
+            if (type == MSG_GPS_LBS_1) {
+                if (variant == Variant.GT06E_CARD) {
+                    position.set(Position.KEY_ODOMETER, buf.readUnsignedInt());
+                    String data = buf.readCharSequence(buf.readUnsignedByte(), StandardCharsets.US_ASCII).toString();
+                    buf.readUnsignedByte(); // alarm
+                    buf.readUnsignedByte(); // swiped
+                    position.set(Position.KEY_CARD, data.trim());
+                } else if (variant == Variant.BENWAY) {
+                    int mask = buf.readUnsignedShort();
+                    position.set(Position.KEY_IGNITION, BitUtil.check(mask, 8 + 7));
+                    position.set(Position.PREFIX_IN + 2, BitUtil.check(mask, 8 + 6));
+                    if (BitUtil.check(mask, 8 + 4)) {
+                        int value = BitUtil.to(mask, 8 + 1);
+                        if (BitUtil.check(mask, 8 + 1)) {
+                            value = -value;
+                        }
+                        position.set(Position.PREFIX_TEMP + 1, value);
+                    } else {
+                        int value = BitUtil.to(mask, 8 + 2);
+                        if (BitUtil.check(mask, 8 + 5)) {
+                            position.set(Position.PREFIX_ADC + 1, value);
+                        } else {
+                            position.set(Position.PREFIX_ADC + 1, value * 0.1);
+                        }
+                    }
+                } else if (variant == Variant.VXT01) {
+                    decodeStatus(position, buf);
+                    position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01);
+                    position.set(Position.KEY_RSSI, buf.readUnsignedByte());
+                    buf.readUnsignedByte(); // alarm extension
+                } else if (variant == Variant.S5) {
+                    decodeStatus(position, buf);
+                    position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01);
+                    position.set(Position.KEY_RSSI, buf.readUnsignedByte());
+                    position.set(Position.KEY_ALARM, decodeAlarm(buf.readUnsignedByte()));
+                    position.set("oil", buf.readUnsignedShort());
+                    int temperature = buf.readUnsignedByte();
+                    if (BitUtil.check(temperature, 7)) {
+                        temperature = -BitUtil.to(temperature, 7);
+                    }
+                    position.set(Position.PREFIX_TEMP + 1, temperature);
+                    position.set(Position.KEY_ODOMETER, buf.readUnsignedInt() * 10);
+                } else if (variant == Variant.WETRUST) {
+                    position.set(Position.KEY_ODOMETER, buf.readUnsignedInt());
+                    position.set(Position.KEY_CARD, buf.readCharSequence(
+                            buf.readUnsignedByte(), StandardCharsets.US_ASCII).toString());
+                    position.set(Position.KEY_ALARM, buf.readUnsignedByte() > 0 ? Position.ALARM_GENERAL : null);
+                    position.set("cardStatus", buf.readUnsignedByte());
+                    position.set(Position.KEY_DRIVING_TIME, buf.readUnsignedShort());
+                }
+            }
+
+            if ((type == MSG_GPS_LBS_2 || type == MSG_GPS_LBS_3 || type == MSG_GPS_LBS_4)
+                    && buf.readableBytes() >= 3 + 6) {
+                position.set(Position.KEY_IGNITION, buf.readUnsignedByte() > 0);
+                position.set(Position.KEY_EVENT, buf.readUnsignedByte()); // reason
+                position.set(Position.KEY_ARCHIVE, buf.readUnsignedByte() > 0);
+            }
+
+            if (type == MSG_GPS_LBS_3) {
+                int module = buf.readUnsignedShort();
+                int subLength = buf.readUnsignedByte();
+                switch (module) {
+                    case 0x0027:
+                        position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01);
+                        break;
+                    case 0x002E:
+                        position.set(Position.KEY_ODOMETER, buf.readUnsignedInt());
+                        break;
+                    case 0x003B:
+                        position.setAccuracy(buf.readUnsignedShort() * 0.01);
+                        break;
+                    default:
+                        buf.skipBytes(subLength);
+                        break;
+                }
+            }
+
+            if (buf.readableBytes() == 3 + 6 || buf.readableBytes() == 3 + 4 + 6) {
+                position.set(Position.KEY_IGNITION, buf.readUnsignedByte() > 0);
+                buf.readUnsignedByte(); // upload mode
+                position.set(Position.KEY_ARCHIVE, buf.readUnsignedByte() > 0 ? true : null);
+            }
+
+            if (buf.readableBytes() == 4 + 6) {
+                position.set(Position.KEY_ODOMETER, buf.readUnsignedInt());
             }
 
         } else if (type == MSG_ALARM) {
+
             boolean extendedAlarm = dataLength > 7;
             if (extendedAlarm) {
-                decodeGps(position, buf, false, false, false, deviceSession.getTimeZone());
+                if (variant == Variant.JC400) {
+                    buf.readUnsignedShort(); // marker
+                    buf.readUnsignedByte(); // version
+                }
+                decodeGps(
+                        position, buf, false,
+                        variant == Variant.JC400, variant == Variant.JC400, variant == Variant.JC400,
+                        deviceSession.get(DeviceSession.KEY_TIMEZONE));
             } else {
-                DateBuilder dateBuilder = new DateBuilder(deviceSession.getTimeZone())
+                DateBuilder dateBuilder = new DateBuilder((TimeZone) deviceSession.get(DeviceSession.KEY_TIMEZONE))
                         .setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
                         .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
                 getLastLocation(position, dateBuilder.getDate());
             }
-            short alarmType = buf.readUnsignedByte();
-            switch (alarmType) {
+            if (variant == Variant.JC400) {
+                position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.1);
+            }
+            short event = buf.readUnsignedByte();
+            position.set(Position.KEY_EVENT, event);
+            switch (event) {
                 case 0x01:
                     position.set(Position.KEY_ALARM, extendedAlarm ? Position.ALARM_SOS : Position.ALARM_GENERAL);
                     break;
+                case 0x0E:
+                    position.set(Position.KEY_ALARM, Position.ALARM_LOW_POWER);
+                    break;
+                case 0x76:
+                    position.set(Position.KEY_ALARM, Position.ALARM_TEMPERATURE);
+                    break;
                 case 0x80:
                     position.set(Position.KEY_ALARM, Position.ALARM_VIBRATION);
                     break;
                 case 0x87:
                     position.set(Position.KEY_ALARM, Position.ALARM_OVERSPEED);
                     break;
+                case 0x88:
+                    position.set(Position.KEY_ALARM, Position.ALARM_POWER_CUT);
+                    break;
                 case 0x90:
                     position.set(Position.KEY_ALARM, Position.ALARM_ACCELERATION);
                     break;
@@ -851,9 +992,9 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
                     position.set(Position.KEY_ALARM, Position.ALARM_ACCIDENT);
                     break;
                 default:
-                    position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
                     break;
             }
+
         } else {
 
             if (dataLength > 0) {
@@ -879,117 +1020,6 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
         return position;
     }
 
-    private void decodeHeartbeat(ByteBuf buf, Position position) {
-
-        getLastLocation(position, null);
-
-        buf.readUnsignedByte(); // information content
-        buf.readUnsignedShort(); // satellites
-        buf.readUnsignedByte(); // alarm
-        buf.readUnsignedByte(); // language
-
-        position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte());
-
-        buf.readUnsignedByte(); // working mode
-        buf.readUnsignedShort(); // working voltage
-        buf.readUnsignedByte(); // reserved
-        buf.readUnsignedShort(); // working times
-        buf.readUnsignedShort(); // working time
-
-        int value = buf.readUnsignedShort();
-        double temperature = BitUtil.to(value, 15) * 0.1;
-        position.set(Position.PREFIX_TEMP + 1, BitUtil.check(value, 15) ? temperature : -temperature);
-
-    }
-
-    private void decodeBasicUniversal(ByteBuf buf, DeviceSession deviceSession, int type, Position position) {
-
-        if (hasGps(type)) {
-            decodeGps(position, buf, false, deviceSession.getTimeZone());
-        } else {
-            getLastLocation(position, null);
-        }
-
-        if (hasLbs(type)) {
-            decodeLbs(position, buf, type, hasStatus(type));
-        }
-
-        if (hasStatus(type)) {
-            decodeStatus(position, buf, true);
-            position.set(Position.KEY_ALARM, decodeAlarm(buf.readUnsignedByte()));
-        }
-
-        if (type == MSG_GPS_LBS_1) {
-            if (buf.readableBytes() > 75 + 6) {
-                position.set(Position.KEY_ODOMETER, buf.readUnsignedInt());
-                String data = buf.readCharSequence(buf.readUnsignedByte(), StandardCharsets.US_ASCII).toString();
-                buf.readUnsignedByte(); // alarm
-                buf.readUnsignedByte(); // swiped
-                position.set("driverLicense", data.trim());
-            } else if (buf.readableBytes() == 8) {
-                int mask = buf.readUnsignedShort();
-                position.set(Position.KEY_IGNITION, BitUtil.check(mask, 8 + 7));
-                position.set(Position.PREFIX_IN + 2, BitUtil.check(mask, 8 + 6));
-                if (BitUtil.check(mask, 8 + 4)) {
-                    int value = BitUtil.to(mask, 8 + 1);
-                    if (BitUtil.check(mask, 8 + 1)) {
-                        value = -value;
-                    }
-                    position.set(Position.PREFIX_TEMP + 1, value);
-                } else {
-                    int value = BitUtil.to(mask, 8 + 2);
-                    if (BitUtil.check(mask, 8 + 5)) {
-                        position.set(Position.PREFIX_ADC + 1, value);
-                    } else {
-                        position.set(Position.PREFIX_ADC + 1, value * 0.1);
-                    }
-                }
-            } else if (buf.readableBytes() == 11) {
-                decodeStatus(position, buf, false);
-                buf.readUnsignedByte(); // alarm extension
-            } else if (buf.readableBytes() == 18) {
-                decodeStatus(position, buf, false);
-                position.set(Position.KEY_ALARM, decodeAlarm(buf.readUnsignedByte()));
-                position.set("oil", buf.readUnsignedShort());
-                int temperature = buf.readUnsignedByte();
-                if (BitUtil.check(temperature, 7)) {
-                    temperature = -BitUtil.to(temperature, 7);
-                }
-                position.set(Position.PREFIX_TEMP + 1, temperature);
-                position.set(Position.KEY_ODOMETER, buf.readUnsignedInt() * 10);
-            }
-        }
-
-        if ((type == MSG_GPS_LBS_2 || type == MSG_GPS_LBS_3 || type == MSG_GPS_LBS_4) && buf.readableBytes() >= 3 + 6) {
-            position.set(Position.KEY_IGNITION, buf.readUnsignedByte() > 0);
-            position.set(Position.KEY_EVENT, buf.readUnsignedByte()); // reason
-            position.set(Position.KEY_ARCHIVE, buf.readUnsignedByte() > 0);
-        }
-
-        if (type == MSG_GPS_LBS_3) {
-            int module = buf.readUnsignedShort();
-            int length = buf.readUnsignedByte();
-            switch (module) {
-                case 0x0027:
-                    position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01);
-                    break;
-                case 0x002E:
-                    position.set(Position.KEY_ODOMETER, buf.readUnsignedInt());
-                    break;
-                case 0x003B:
-                    position.setAccuracy(buf.readUnsignedShort() * 0.01);
-                    break;
-                default:
-                    buf.skipBytes(length);
-                    break;
-            }
-        }
-
-        if (buf.readableBytes() == 4 + 6) {
-            position.set(Position.KEY_ODOMETER, buf.readUnsignedInt());
-        }
-    }
-
     private Object decodeExtended(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
 
         DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
@@ -997,8 +1027,8 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
             return null;
         }
 
-        if (deviceSession.getTimeZone() == null) {
-            deviceSession.setTimeZone(getTimeZone(deviceSession.getDeviceId()));
+        if (!deviceSession.contains(DeviceSession.KEY_TIMEZONE)) {
+            deviceSession.set(DeviceSession.KEY_TIMEZONE, getTimeZone(deviceSession.getDeviceId()));
         }
 
         Position position = new Position(getProtocolName());
@@ -1017,7 +1047,16 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
                 data = buf.readSlice(buf.readableBytes() - 6).toString(StandardCharsets.UTF_16BE);
             }
 
-            if (decodeLocationString(position, data) == null) {
+            Parser parser = new Parser(PATTERN_LOCATION, data);
+
+            if (parser.matches()) {
+                position.setValid(true);
+                position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG));
+                position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG));
+                position.setCourse(parser.nextDouble());
+                position.setSpeed(parser.nextDouble());
+                position.setTime(parser.nextDateTime(Parser.DateTimeFormat.YMD_HMS));
+            } else {
                 getLastLocation(position, null);
                 position.set(Position.KEY_RESULT, data);
             }
@@ -1031,31 +1070,85 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
             getLastLocation(position, null);
 
             if (subType == 0x00) {
+
                 position.set(Position.PREFIX_ADC + 1, buf.readUnsignedShort() * 0.01);
                 return position;
+
+            } else if (subType == 0x04) {
+
+                CharSequence content = buf.readCharSequence(buf.readableBytes() - 4 - 2, StandardCharsets.US_ASCII);
+                String[] values = content.toString().split(";");
+                for (String value : values) {
+                    String[] pair = value.split("=");
+                    switch (pair[0]) {
+                        case "ALM1":
+                        case "ALM2":
+                        case "ALM3":
+                            position.set("alarm" + pair[0].charAt(3) + "Status", Integer.parseInt(pair[1], 16));
+                        case "STA1":
+                            position.set("otherStatus", Integer.parseInt(pair[1], 16));
+                            break;
+                        case "DYD":
+                            position.set("engineStatus", Integer.parseInt(pair[1], 16));
+                            break;
+                        default:
+                            break;
+                    }
+                }
+                return position;
+
             } else if (subType == 0x05) {
+
+                if (buf.readableBytes() >= 6 + 1 + 6) {
+                    DateBuilder dateBuilder = new DateBuilder((TimeZone) deviceSession.get(DeviceSession.KEY_TIMEZONE))
+                            .setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
+                            .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
+                    position.setDeviceTime(dateBuilder.getDate());
+                }
+
                 int flags = buf.readUnsignedByte();
                 position.set(Position.KEY_DOOR, BitUtil.check(flags, 0));
                 position.set(Position.PREFIX_IO + 1, BitUtil.check(flags, 2));
                 return position;
+
             } else if (subType == 0x0a) {
+
                 buf.skipBytes(8); // imei
                 buf.skipBytes(8); // imsi
                 position.set(Position.KEY_ICCID, ByteBufUtil.hexDump(buf.readSlice(10)).replaceAll("f", ""));
                 return position;
+
             } else if (subType == 0x0d) {
+
                 if (buf.getByte(buf.readerIndex()) != '!') {
                     buf.skipBytes(6);
                 }
-                return decodeFuelData(position, buf.toString(
+
+                Parser parser = new Parser(PATTERN_FUEL, buf.toString(
                         buf.readerIndex(), buf.readableBytes() - 4 - 2, StandardCharsets.US_ASCII));
+                if (!parser.matches()) {
+                    return null;
+                }
+
+                position.set(Position.PREFIX_TEMP + 1, parser.nextDouble(0));
+                position.set(Position.KEY_FUEL_LEVEL, parser.nextDouble(0));
+
+                return position;
+
             } else if (subType == 0x1b) {
-                buf.readUnsignedByte(); // header
-                buf.readUnsignedByte(); // type
-                position.set(Position.KEY_DRIVER_UNIQUE_ID, ByteBufUtil.hexDump(buf.readSlice(4)));
-                buf.readUnsignedByte(); // checksum
-                buf.readUnsignedByte(); // footer
+
+                if (Character.isLetter(buf.getUnsignedByte(buf.readerIndex()))) {
+                    String data = buf.readCharSequence(buf.readableBytes() - 6, StandardCharsets.US_ASCII).toString();
+                    position.set("serial", data.trim());
+                } else {
+                    buf.readUnsignedByte(); // header
+                    buf.readUnsignedByte(); // type
+                    position.set(Position.KEY_DRIVER_UNIQUE_ID, ByteBufUtil.hexDump(buf.readSlice(4)));
+                    buf.readUnsignedByte(); // checksum
+                    buf.readUnsignedByte(); // footer
+                }
                 return position;
+
             }
 
         } else if (type == MSG_X1_PHOTO_DATA) {
@@ -1070,15 +1163,13 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
             if (photo.writableBytes() > 0) {
                 sendPhotoRequest(channel, pictureId);
             } else {
-                Device device = Context.getDeviceManager().getById(deviceSession.getDeviceId());
-                position.set(
-                        Position.KEY_IMAGE, Context.getMediaManager().writeFile(device.getUniqueId(), photo, "jpg"));
+                position.set(Position.KEY_IMAGE, writeMediaFile(deviceSession.getUniqueId(), photo, "jpg"));
                 photos.remove(pictureId).release();
             }
 
         } else if (type == MSG_AZ735_GPS || type == MSG_AZ735_ALARM) {
 
-            if (!decodeGps(position, buf, true, deviceSession.getTimeZone())) {
+            if (!decodeGps(position, buf, true, deviceSession.get(DeviceSession.KEY_TIMEZONE))) {
                 getLastLocation(position, position.getDeviceTime());
             }
 
@@ -1123,7 +1214,7 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
 
         } else if (type == MSG_OBD) {
 
-            DateBuilder dateBuilder = new DateBuilder(deviceSession.getTimeZone())
+            DateBuilder dateBuilder = new DateBuilder((TimeZone) deviceSession.get(DeviceSession.KEY_TIMEZONE))
                     .setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
                     .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
 
@@ -1170,132 +1261,111 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
 
         } else if (type == MSG_GPS_MODULAR) {
 
-            return decodeExtendedModular(channel, buf, deviceSession);
+            while (buf.readableBytes() > 6) {
+                int moduleType = buf.readUnsignedShort();
+                int moduleLength = buf.readUnsignedShort();
 
-        } else {
-
-            return decodeExtendedOther(channel, buf, deviceSession, type);
-
-        }
-
-        return null;
-    }
-
-    private Object decodeExtendedModular(Channel channel, ByteBuf buf, DeviceSession deviceSession) {
-
-        Position position = new Position(getProtocolName());
-        position.setDeviceId(deviceSession.getDeviceId());
-
-        while (buf.readableBytes() > 6) {
-            int moduleType = buf.readUnsignedShort();
-            int moduleLength = buf.readUnsignedShort();
-
-            switch (moduleType) {
-                case 0x03:
-                    position.set(Position.KEY_ICCID, ByteBufUtil.hexDump(buf.readSlice(10)));
-                    break;
-                case 0x09:
-                    position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
-                    break;
-                case 0x0a:
-                    position.set(Position.KEY_SATELLITES_VISIBLE, buf.readUnsignedByte());
-                    break;
-                case 0x11:
-                    CellTower cellTower = CellTower.from(
-                            buf.readUnsignedShort(),
-                            buf.readUnsignedShort(),
-                            buf.readUnsignedShort(),
-                            buf.readUnsignedMedium(),
-                            buf.readUnsignedByte());
-                    if (cellTower.getCellId() > 0) {
-                        position.setNetwork(new Network(cellTower));
-                    }
-                    break;
-                case 0x18:
-                    position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.01);
-                    break;
-                case 0x28:
-                    position.set(Position.KEY_HDOP, buf.readUnsignedByte() * 0.1);
-                    break;
-                case 0x29:
-                    position.set(Position.KEY_INDEX, buf.readUnsignedInt());
-                    break;
-                case 0x2a:
-                    int input = buf.readUnsignedByte();
-                    position.set(Position.KEY_DOOR, BitUtil.to(input, 4) > 0);
-                    position.set("tamper", BitUtil.from(input, 4) > 0);
-                    break;
-                case 0x2b:
-                    int event = buf.readUnsignedByte();
-                    switch (event) {
-                        case 0x11:
-                            position.set(Position.KEY_ALARM, Position.ALARM_LOW_BATTERY);
-                            break;
-                        case 0x12:
-                            position.set(Position.KEY_ALARM, Position.ALARM_LOW_POWER);
-                            break;
-                        case 0x13:
-                            position.set(Position.KEY_ALARM, Position.ALARM_POWER_CUT);
-                            break;
-                        case 0x14:
-                            position.set(Position.KEY_ALARM, Position.ALARM_REMOVING);
-                            break;
-                        default:
-                            break;
-                    }
-                    position.set(Position.KEY_EVENT, event);
-                    break;
-                case 0x2e:
-                    position.set(Position.KEY_ODOMETER, buf.readUnsignedIntLE());
-                    break;
-                case 0x33:
-                    position.setTime(new Date(buf.readUnsignedInt() * 1000));
-                    position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
-                    position.setAltitude(buf.readShort());
-
-                    double latitude = buf.readUnsignedInt() / 60.0 / 30000.0;
-                    double longitude = buf.readUnsignedInt() / 60.0 / 30000.0;
-                    position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte()));
-
-                    int flags = buf.readUnsignedShort();
-                    position.setCourse(BitUtil.to(flags, 10));
-                    position.setValid(BitUtil.check(flags, 12));
-
-                    if (!BitUtil.check(flags, 10)) {
-                        latitude = -latitude;
-                    }
-                    if (BitUtil.check(flags, 11)) {
-                        longitude = -longitude;
-                    }
-
-                    position.setLatitude(latitude);
-                    position.setLongitude(longitude);
-                    break;
-                case 0x34:
-                    position.set(Position.KEY_EVENT, buf.readUnsignedByte());
-                    buf.readUnsignedIntLE(); // time
-                    buf.skipBytes(buf.readUnsignedByte()); // content
-                    break;
-                default:
-                    buf.skipBytes(moduleLength);
-                    break;
+                switch (moduleType) {
+                    case 0x03:
+                        position.set(Position.KEY_ICCID, ByteBufUtil.hexDump(buf.readSlice(10)));
+                        break;
+                    case 0x09:
+                        position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+                        break;
+                    case 0x0a:
+                        position.set(Position.KEY_SATELLITES_VISIBLE, buf.readUnsignedByte());
+                        break;
+                    case 0x11:
+                        CellTower cellTower = CellTower.from(
+                                buf.readUnsignedShort(),
+                                buf.readUnsignedShort(),
+                                buf.readUnsignedShort(),
+                                buf.readUnsignedMedium(),
+                                buf.readUnsignedByte());
+                        if (cellTower.getCellId() > 0) {
+                            position.setNetwork(new Network(cellTower));
+                        }
+                        break;
+                    case 0x18:
+                        position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.01);
+                        break;
+                    case 0x28:
+                        position.set(Position.KEY_HDOP, buf.readUnsignedByte() * 0.1);
+                        break;
+                    case 0x29:
+                        position.set(Position.KEY_INDEX, buf.readUnsignedInt());
+                        break;
+                    case 0x2a:
+                        int input = buf.readUnsignedByte();
+                        position.set(Position.KEY_DOOR, BitUtil.to(input, 4) > 0);
+                        position.set("tamper", BitUtil.from(input, 4) > 0);
+                        break;
+                    case 0x2b:
+                        int event = buf.readUnsignedByte();
+                        switch (event) {
+                            case 0x11:
+                                position.set(Position.KEY_ALARM, Position.ALARM_LOW_BATTERY);
+                                break;
+                            case 0x12:
+                                position.set(Position.KEY_ALARM, Position.ALARM_LOW_POWER);
+                                break;
+                            case 0x13:
+                                position.set(Position.KEY_ALARM, Position.ALARM_POWER_CUT);
+                                break;
+                            case 0x14:
+                                position.set(Position.KEY_ALARM, Position.ALARM_REMOVING);
+                                break;
+                            default:
+                                break;
+                        }
+                        position.set(Position.KEY_EVENT, event);
+                        break;
+                    case 0x2e:
+                        position.set(Position.KEY_ODOMETER, buf.readUnsignedIntLE());
+                        break;
+                    case 0x33:
+                        position.setTime(new Date(buf.readUnsignedInt() * 1000));
+                        position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+                        position.setAltitude(buf.readShort());
+
+                        double latitude = buf.readUnsignedInt() / 60.0 / 30000.0;
+                        double longitude = buf.readUnsignedInt() / 60.0 / 30000.0;
+                        position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte()));
+
+                        int flags = buf.readUnsignedShort();
+                        position.setCourse(BitUtil.to(flags, 10));
+                        position.setValid(BitUtil.check(flags, 12));
+
+                        if (!BitUtil.check(flags, 10)) {
+                            latitude = -latitude;
+                        }
+                        if (BitUtil.check(flags, 11)) {
+                            longitude = -longitude;
+                        }
+
+                        position.setLatitude(latitude);
+                        position.setLongitude(longitude);
+                        break;
+                    case 0x34:
+                        position.set(Position.KEY_EVENT, buf.readUnsignedByte());
+                        buf.readUnsignedIntLE(); // time
+                        buf.skipBytes(buf.readUnsignedByte()); // content
+                        break;
+                    default:
+                        buf.skipBytes(moduleLength);
+                        break;
+                }
             }
-        }
-
-        if (position.getFixTime() == null) {
-            getLastLocation(position, null);
-        }
-
-        sendResponse(channel, false, MSG_GPS_MODULAR, buf.readUnsignedShort(), null);
 
-        return position;
-    }
+            if (position.getFixTime() == null) {
+                getLastLocation(position, null);
+            }
 
-    private Object decodeExtendedOther(Channel channel, ByteBuf buf, DeviceSession deviceSession, int type) {
+            sendResponse(channel, false, MSG_GPS_MODULAR, buf.readUnsignedShort(), null);
 
-        Position position = null;
+            return position;
 
-        if (type == MSG_MULTIMEDIA || type == MSG_MULTIMEDIA_2) {
+        } else if (type == MSG_MULTIMEDIA) {
 
             buf.skipBytes(8); // serial number
             long timestamp = buf.readUnsignedInt() * 1000;
@@ -1328,9 +1398,7 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
                         position = new Position(getProtocolName());
                         position.setDeviceId(deviceSession.getDeviceId());
                         getLastLocation(position, new Date(timestamp));
-                        Device device = Context.getDeviceManager().getById(deviceSession.getDeviceId());
-                        position.set(Position.KEY_IMAGE,
-                                Context.getMediaManager().writeFile(device.getUniqueId(), photo, "jpg"));
+                        position.set(Position.KEY_IMAGE, writeMediaFile(deviceSession.getUniqueId(), photo, "jpg"));
                         photos.remove(mediaId).release();
                     }
                 }
@@ -1348,19 +1416,13 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
             getLastLocation(position, null);
 
             buf.readUnsignedByte(); // external device type code
-            int length = buf.readableBytes() - 9; // line break + checksum + index + checksum + footer
 
-            if (length <= 0) {
-                return null;
-            } else if (length < 8) {
-                position.set(
-                        Position.PREFIX_TEMP + 1,
-                        Double.parseDouble(buf.readCharSequence(length - 1, StandardCharsets.US_ASCII).toString()));
+            ByteBuf data = buf.readSlice(buf.readableBytes() - 6); // index + checksum + footer
+            if (BufferUtil.isPrintable(data, data.readableBytes())) {
+                String value = data.readCharSequence(data.readableBytes(), StandardCharsets.US_ASCII).toString();
+                position.set(Position.KEY_RESULT, value.trim());
             } else {
-                buf.readUnsignedByte(); // card type
-                position.set(
-                        Position.KEY_DRIVER_UNIQUE_ID,
-                        buf.readCharSequence(length - 1, StandardCharsets.US_ASCII).toString());
+                position.set(Position.KEY_RESULT, ByteBufUtil.hexDump(data));
             }
 
             return position;
@@ -1386,6 +1448,26 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
             variant = Variant.VXT01;
         } else if (header == 0x7878 && type == MSG_GPS_LBS_STATUS_1 && length == 0x24) {
             variant = Variant.VXT01;
+        } else if (header == 0x7878 && type == MSG_LBS_MULTIPLE_3 && length == 0x31) {
+            variant = Variant.WANWAY_S20;
+        } else if (header == 0x7878 && type == MSG_LBS_MULTIPLE_3 && length == 0x2e) {
+            variant = Variant.SR411_MINI;
+        } else if (header == 0x7878 && type == MSG_GPS_LBS_1 && length >= 0x71) {
+            variant = Variant.GT06E_CARD;
+        } else if (header == 0x7878 && type == MSG_GPS_LBS_1 && length == 0x21) {
+            variant = Variant.BENWAY;
+        } else if (header == 0x7878 && type == MSG_GPS_LBS_1 && length == 0x2b) {
+            variant = Variant.S5;
+        } else if (header == 0x7878 && type == MSG_LBS_STATUS && length >= 0x17) {
+            variant = Variant.SPACE10X;
+        } else if (header == 0x7878 && type == MSG_STATUS && length == 0x13) {
+            variant = Variant.OBD6;
+        } else if (header == 0x7878 && type == MSG_GPS_LBS_1 && length == 0x29) {
+            variant = Variant.WETRUST;
+        } else if (header == 0x7878 && type == MSG_ALARM && buf.getUnsignedShort(buf.readerIndex() + 4) == 0xffff) {
+            variant = Variant.JC400;
+        } else if (header == 0x7878 && type == MSG_LBS_3 && length == 0x37) {
+            variant = Variant.SL4X;
         } else {
             variant = Variant.STANDARD;
         }
diff --git a/src/main/java/org/traccar/protocol/Gt06ProtocolEncoder.java b/src/main/java/org/traccar/protocol/Gt06ProtocolEncoder.java
index 9115ba10f..dc5dd446f 100644
--- a/src/main/java/org/traccar/protocol/Gt06ProtocolEncoder.java
+++ b/src/main/java/org/traccar/protocol/Gt06ProtocolEncoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,10 +18,12 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import org.traccar.BaseProtocolEncoder;
-import org.traccar.Context;
+import org.traccar.Protocol;
+import org.traccar.config.Keys;
 import org.traccar.helper.Checksum;
+import org.traccar.helper.model.AttributeUtil;
 import org.traccar.model.Command;
-import org.traccar.Protocol;
+import org.traccar.model.Device;
 
 import java.nio.charset.StandardCharsets;
 
@@ -33,8 +35,8 @@ public class Gt06ProtocolEncoder extends BaseProtocolEncoder {
 
     private ByteBuf encodeContent(long deviceId, String content) {
 
-        boolean language = Context.getIdentityManager()
-            .lookupAttributeBoolean(deviceId, getProtocolName() + ".language", false, false, true);
+        boolean language = AttributeUtil.lookup(
+                getCacheManager(), Keys.PROTOCOL_LANGUAGE.withPrefix(getProtocolName()), deviceId);
 
         ByteBuf buf = Unpooled.buffer();
 
@@ -43,7 +45,7 @@ public class Gt06ProtocolEncoder extends BaseProtocolEncoder {
 
         buf.writeByte(1 + 1 + 4 + content.length() + 2 + 2 + (language ? 2 : 0)); // message length
 
-        buf.writeByte(0x80); // message type
+        buf.writeByte(Gt06ProtocolDecoder.MSG_COMMAND_0);
 
         buf.writeByte(4 + content.length()); // command length
         buf.writeInt(0);
@@ -66,19 +68,31 @@ public class Gt06ProtocolEncoder extends BaseProtocolEncoder {
     @Override
     protected Object encodeCommand(Command command) {
 
-        boolean alternative = Context.getIdentityManager().lookupAttributeBoolean(
-                command.getDeviceId(), getProtocolName() + ".alternative", false, false, true);
+        boolean alternative = AttributeUtil.lookup(
+                getCacheManager(), Keys.PROTOCOL_ALTERNATIVE.withPrefix(getProtocolName()), command.getDeviceId());
+
+        String password = AttributeUtil.getDevicePassword(
+                getCacheManager(), command.getDeviceId(), getProtocolName(), "123456");
 
-        String password = Context.getIdentityManager()
-                .getDevicePassword(command.getDeviceId(), getProtocolName(), "123456");
+        Device device = getCacheManager().getObject(Device.class, command.getDeviceId());
 
         switch (command.getType()) {
             case Command.TYPE_ENGINE_STOP:
-                return encodeContent(command.getDeviceId(),
-                    alternative ? "DYD," + password + "#" : "Relay,1#");
+                if ("G109".equals(device.getModel())) {
+                    return encodeContent(command.getDeviceId(), "DYD#");
+                } else if (alternative) {
+                    return encodeContent(command.getDeviceId(), "DYD," + password + "#");
+                } else {
+                    return encodeContent(command.getDeviceId(), "Relay,1#");
+                }
             case Command.TYPE_ENGINE_RESUME:
-                return encodeContent(command.getDeviceId(),
-                    alternative ? "HFYD," + password + "#" : "Relay,0#");
+                if ("G109".equals(device.getModel())) {
+                    return encodeContent(command.getDeviceId(), "HFYD#");
+                } else if (alternative) {
+                    return encodeContent(command.getDeviceId(), "HFYD," + password + "#");
+                } else {
+                    return encodeContent(command.getDeviceId(), "Relay,0#");
+                }
             case Command.TYPE_CUSTOM:
                 return encodeContent(command.getDeviceId(), command.getString(Command.KEY_DATA));
             default:
diff --git a/src/main/java/org/traccar/protocol/Gt30Protocol.java b/src/main/java/org/traccar/protocol/Gt30Protocol.java
index aa4ad20b1..fdfc80502 100644
--- a/src/main/java/org/traccar/protocol/Gt30Protocol.java
+++ b/src/main/java/org/traccar/protocol/Gt30Protocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Gt30Protocol extends BaseProtocol {
 
-    public Gt30Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Gt30Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/Gt30ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gt30ProtocolDecoder.java
index abf208a46..fb3a2b8ae 100644
--- a/src/main/java/org/traccar/protocol/Gt30ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gt30ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/H02Protocol.java b/src/main/java/org/traccar/protocol/H02Protocol.java
index a5246abc6..ba5aeaa26 100644
--- a/src/main/java/org/traccar/protocol/H02Protocol.java
+++ b/src/main/java/org/traccar/protocol/H02Protocol.java
@@ -17,15 +17,18 @@ package org.traccar.protocol;
 
 import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
-import org.traccar.Context;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class H02Protocol extends BaseProtocol {
 
-    public H02Protocol() {
+    @Inject
+    public H02Protocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_ALARM_ARM,
                 Command.TYPE_ALARM_DISARM,
@@ -33,19 +36,19 @@ public class H02Protocol extends BaseProtocol {
                 Command.TYPE_ENGINE_RESUME,
                 Command.TYPE_POSITION_PERIODIC
         );
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
-                int messageLength = Context.getConfig().getInteger(Keys.PROTOCOL_MESSAGE_LENGTH.withPrefix(getName()));
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
+                int messageLength = config.getInteger(Keys.PROTOCOL_MESSAGE_LENGTH.withPrefix(getName()));
                 pipeline.addLast(new H02FrameDecoder(messageLength));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new H02ProtocolEncoder(H02Protocol.this));
                 pipeline.addLast(new H02ProtocolDecoder(H02Protocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new H02ProtocolEncoder(H02Protocol.this));
                 pipeline.addLast(new H02ProtocolDecoder(H02Protocol.this));
diff --git a/src/main/java/org/traccar/protocol/H02ProtocolDecoder.java b/src/main/java/org/traccar/protocol/H02ProtocolDecoder.java
index 10a272bff..2ad4f644b 100644
--- a/src/main/java/org/traccar/protocol/H02ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/H02ProtocolDecoder.java
@@ -19,8 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
@@ -334,7 +333,7 @@ public class H02ProtocolDecoder extends BaseProtocolDecoder {
 
         if (parser.hasNext() && parser.next().equals("V1")) {
             sendResponse(channel, remoteAddress, id, "V1");
-        } else if (Context.getConfig().getBoolean(Keys.PROTOCOL_ACK.withPrefix(getProtocolName()))) {
+        } else if (getConfig().getBoolean(Keys.PROTOCOL_ACK.withPrefix(getProtocolName()))) {
             sendResponse(channel, remoteAddress, id, "R12");
         }
 
@@ -392,7 +391,8 @@ public class H02ProtocolDecoder extends BaseProtocolDecoder {
 
             position.setAltitude(parser.nextInt(0));
 
-            position.setNetwork(new Network(CellTower.fromLacCid(parser.nextHexInt(0), parser.nextHexInt(0))));
+            position.setNetwork(new Network(CellTower.fromLacCid(
+                    getConfig(), parser.nextHexInt(0), parser.nextHexInt(0))));
         }
 
         if (parser.hasNext()) {
diff --git a/src/main/java/org/traccar/protocol/H02ProtocolEncoder.java b/src/main/java/org/traccar/protocol/H02ProtocolEncoder.java
index 8f1a8c042..86b8c80d4 100644
--- a/src/main/java/org/traccar/protocol/H02ProtocolEncoder.java
+++ b/src/main/java/org/traccar/protocol/H02ProtocolEncoder.java
@@ -16,10 +16,11 @@
  */
 package org.traccar.protocol;
 
-import org.traccar.Context;
+import org.traccar.Protocol;
 import org.traccar.StringProtocolEncoder;
+import org.traccar.config.Keys;
+import org.traccar.helper.model.AttributeUtil;
 import org.traccar.model.Command;
-import org.traccar.Protocol;
 
 import java.util.Date;
 
@@ -59,8 +60,9 @@ public class H02ProtocolEncoder extends StringProtocolEncoder {
                 return formatCommand(time, uniqueId, "S20", "1", "0");
             case Command.TYPE_POSITION_PERIODIC:
                 String frequency = command.getAttributes().get(Command.KEY_FREQUENCY).toString();
-                if (Context.getIdentityManager().lookupAttributeBoolean(
-                        command.getDeviceId(), getProtocolName() + ".alternative", false, false, true)) {
+                if (AttributeUtil.lookup(
+                        getCacheManager(), Keys.PROTOCOL_ALTERNATIVE.withPrefix(getProtocolName()),
+                        command.getDeviceId())) {
                     return formatCommand(time, uniqueId, "D1", frequency);
                 } else {
                     return formatCommand(time, uniqueId, "S71", "22", frequency);
diff --git a/src/main/java/org/traccar/protocol/HaicomProtocol.java b/src/main/java/org/traccar/protocol/HaicomProtocol.java
index 6e5760bd4..bcc491ada 100644
--- a/src/main/java/org/traccar/protocol/HaicomProtocol.java
+++ b/src/main/java/org/traccar/protocol/HaicomProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class HaicomProtocol extends BaseProtocol {
 
-    public HaicomProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public HaicomProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '*'));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/HaicomProtocolDecoder.java b/src/main/java/org/traccar/protocol/HaicomProtocolDecoder.java
index dd20f2aeb..9903e7735 100644
--- a/src/main/java/org/traccar/protocol/HaicomProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/HaicomProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/HomtecsProtocol.java b/src/main/java/org/traccar/protocol/HomtecsProtocol.java
index 34dbf0f51..c04efb945 100644
--- a/src/main/java/org/traccar/protocol/HomtecsProtocol.java
+++ b/src/main/java/org/traccar/protocol/HomtecsProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class HomtecsProtocol extends BaseProtocol {
 
-    public HomtecsProtocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public HomtecsProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new HomtecsProtocolDecoder(HomtecsProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/HomtecsProtocolDecoder.java b/src/main/java/org/traccar/protocol/HomtecsProtocolDecoder.java
index a93572b5c..5541cb065 100644
--- a/src/main/java/org/traccar/protocol/HomtecsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/HomtecsProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/HoopoProtocol.java b/src/main/java/org/traccar/protocol/HoopoProtocol.java
index 387b967d3..3fc0887d8 100644
--- a/src/main/java/org/traccar/protocol/HoopoProtocol.java
+++ b/src/main/java/org/traccar/protocol/HoopoProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class HoopoProtocol extends BaseProtocol {
 
-    public HoopoProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public HoopoProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new JsonFrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/HoopoProtocolDecoder.java b/src/main/java/org/traccar/protocol/HoopoProtocolDecoder.java
index af51a99c6..7433e7fce 100644
--- a/src/main/java/org/traccar/protocol/HoopoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/HoopoProtocolDecoder.java
@@ -17,12 +17,12 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.model.Position;
 
-import javax.json.Json;
-import javax.json.JsonObject;
+import jakarta.json.Json;
+import jakarta.json.JsonObject;
 import java.io.StringReader;
 import java.net.SocketAddress;
 import java.time.OffsetDateTime;
diff --git a/src/main/java/org/traccar/protocol/HuaShengProtocol.java b/src/main/java/org/traccar/protocol/HuaShengProtocol.java
index 103f2d501..7246e97e6 100644
--- a/src/main/java/org/traccar/protocol/HuaShengProtocol.java
+++ b/src/main/java/org/traccar/protocol/HuaShengProtocol.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,14 +18,26 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+import org.traccar.model.Command;
+
+import jakarta.inject.Inject;
 
 public class HuaShengProtocol extends BaseProtocol {
 
-    public HuaShengProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public HuaShengProtocol(Config config) {
+        setSupportedDataCommands(
+                Command.TYPE_POSITION_PERIODIC,
+                Command.TYPE_OUTPUT_CONTROL,
+                Command.TYPE_ALARM_ARM,
+                Command.TYPE_ALARM_DISARM,
+                Command.TYPE_SET_SPEED_LIMIT);
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HuaShengFrameDecoder());
+                pipeline.addLast(new HuaShengProtocolEncoder(HuaShengProtocol.this));
                 pipeline.addLast(new HuaShengProtocolDecoder(HuaShengProtocol.this));
             }
         });
diff --git a/src/main/java/org/traccar/protocol/HuaShengProtocolDecoder.java b/src/main/java/org/traccar/protocol/HuaShengProtocolDecoder.java
index 891046213..7d634b0f2 100644
--- a/src/main/java/org/traccar/protocol/HuaShengProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/HuaShengProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -48,6 +48,10 @@ public class HuaShengProtocolDecoder extends BaseProtocolDecoder {
     public static final int MSG_UPFAULT_RSP = 0xFF13;
     public static final int MSG_HSO_REQ = 0x0002;
     public static final int MSG_HSO_RSP = 0x0003;
+    public static final int MSG_SET_REQ = 0xAA04;
+    public static final int MSG_SET_RSP = 0xFF05;
+    public static final int MSG_CTRL_REQ = 0xAA16;
+    public static final int MSG_CTRL_RSP = 0xFF17;
 
     private void sendResponse(Channel channel, int type, int index, ByteBuf content) {
         if (channel != null) {
@@ -225,13 +229,14 @@ public class HuaShengProtocolDecoder extends BaseProtocolDecoder {
         position.setCourse(buf.readUnsignedShort());
         position.setAltitude(buf.readUnsignedShort());
 
-        position.set(Position.KEY_ODOMETER, buf.readUnsignedShort() * 1000);
+        buf.readUnsignedShort(); // odometer speed
 
         Network network = new Network();
 
         while (buf.readableBytes() > 4) {
             int subtype = buf.readUnsignedShort();
             int length = buf.readUnsignedShort() - 4;
+            int endIndex = buf.readerIndex() + length;
             switch (subtype) {
                 case 0x0001:
                     int coolantTemperature = buf.readUnsignedByte() - 40;
@@ -249,6 +254,9 @@ public class HuaShengProtocolDecoder extends BaseProtocolDecoder {
                     position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01);
                     position.set(Position.KEY_FUEL_LEVEL, buf.readUnsignedByte() * 0.4);
                     buf.readUnsignedInt(); // trip id
+                    if (buf.readerIndex() < endIndex) {
+                        position.set("adBlueLevel", buf.readUnsignedByte() * 0.4);
+                    }
                     break;
                 case 0x0005:
                     position.set(Position.KEY_RSSI, buf.readUnsignedByte());
@@ -256,8 +264,11 @@ public class HuaShengProtocolDecoder extends BaseProtocolDecoder {
                     buf.readUnsignedInt(); // run time
                     break;
                 case 0x0009:
-                    position.set(
-                            Position.KEY_VIN, buf.readCharSequence(length, StandardCharsets.US_ASCII).toString());
+                    position.set(Position.KEY_VIN, buf.readCharSequence(length, StandardCharsets.US_ASCII).toString());
+                    break;
+                case 0x0010:
+                    position.set(Position.KEY_ODOMETER, Double.parseDouble(
+                            buf.readCharSequence(length, StandardCharsets.US_ASCII).toString()) * 1000);
                     break;
                 case 0x0011:
                     position.set(Position.KEY_HOURS, buf.readUnsignedInt() * 0.05);
@@ -276,7 +287,7 @@ public class HuaShengProtocolDecoder extends BaseProtocolDecoder {
                         String[] values = cell.split("@");
                         network.addCellTower(CellTower.from(
                                 Integer.parseInt(values[0]), Integer.parseInt(values[1]),
-                                Integer.parseInt(values[2], 16), Integer.parseInt(values[3], 16)));
+                                Integer.parseInt(values[2], 16), Long.parseLong(values[3], 16)));
                     }
                     break;
                 case 0x0021:
@@ -291,6 +302,7 @@ public class HuaShengProtocolDecoder extends BaseProtocolDecoder {
                     buf.skipBytes(length);
                     break;
             }
+            buf.readerIndex(endIndex);
         }
 
         if (network.getCellTowers() != null || network.getWifiAccessPoints() != null) {
diff --git a/src/main/java/org/traccar/protocol/HuaShengProtocolEncoder.java b/src/main/java/org/traccar/protocol/HuaShengProtocolEncoder.java
new file mode 100644
index 000000000..dc34f7b4e
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/HuaShengProtocolEncoder.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import org.traccar.BaseProtocolEncoder;
+import org.traccar.Protocol;
+import org.traccar.model.Command;
+
+public class HuaShengProtocolEncoder extends BaseProtocolEncoder {
+
+    public HuaShengProtocolEncoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    private ByteBuf encodeContent(int type, ByteBuf content) {
+
+        ByteBuf buf = Unpooled.buffer();
+        buf.writeByte(0xC0);
+        buf.writeShort(0x0000); // flag and version
+        buf.writeShort(12 + content.readableBytes());
+        buf.writeShort(type);
+        buf.writeShort(0); // checksum
+        buf.writeInt(1); // index
+        buf.writeBytes(content);
+        content.release();
+        buf.writeByte(0xC0);
+
+        return buf;
+    }
+
+    @Override
+    protected Object encodeCommand(Command command) {
+
+        ByteBuf content = Unpooled.buffer(0);
+        switch (command.getType()) {
+            case Command.TYPE_POSITION_PERIODIC:
+                content.writeShort(0x0002);
+                content.writeShort(6); // length
+                content.writeShort(command.getInteger(Command.KEY_FREQUENCY));
+                return encodeContent(HuaShengProtocolDecoder.MSG_SET_REQ, content);
+            case Command.TYPE_OUTPUT_CONTROL:
+                /*
+0x01: Lock the relay1; //relay on
+0x02: Unlock the relay1; //relay off
+0x03: Lock the relay2; //relay2 on
+0x04: Unlock the relay2; //relay2 off
+0x05: Lock the relay3; //relay3 on
+0x06: Unlock the relay3; //realy3 off
+                 */
+                content.writeByte(
+                        (command.getInteger(Command.KEY_INDEX) - 1) * 2
+                        + (2 - command.getInteger(Command.KEY_DATA)));
+                return encodeContent(HuaShengProtocolDecoder.MSG_CTRL_REQ, content);
+            case Command.TYPE_ALARM_ARM:
+            case Command.TYPE_ALARM_DISARM:
+                content.writeShort(0x0001);
+                content.writeShort(5); // length
+                content.writeByte(command.getType().equals(Command.TYPE_ALARM_ARM) ? 1 : 0);
+                return encodeContent(HuaShengProtocolDecoder.MSG_SET_REQ, content);
+            case Command.TYPE_SET_SPEED_LIMIT:
+                content.writeShort(0x0004);
+                content.writeShort(6); // length
+                content.writeShort(command.getInteger(Command.KEY_DATA));
+                return encodeContent(HuaShengProtocolDecoder.MSG_SET_REQ, content);
+            default:
+                return null;
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/HuabaoProtocol.java b/src/main/java/org/traccar/protocol/HuabaoProtocol.java
index 791672b85..fc12d7d71 100644
--- a/src/main/java/org/traccar/protocol/HuabaoProtocol.java
+++ b/src/main/java/org/traccar/protocol/HuabaoProtocol.java
@@ -18,17 +18,21 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class HuabaoProtocol extends BaseProtocol {
 
-    public HuabaoProtocol() {
+    @Inject
+    public HuabaoProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_ENGINE_RESUME);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HuabaoFrameDecoder());
                 pipeline.addLast(new HuabaoProtocolEncoder(HuabaoProtocol.this));
                 pipeline.addLast(new HuabaoProtocolDecoder(HuabaoProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/HuabaoProtocolDecoder.java b/src/main/java/org/traccar/protocol/HuabaoProtocolDecoder.java
index 0ae08af37..beb1ec41a 100644
--- a/src/main/java/org/traccar/protocol/HuabaoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/HuabaoProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
@@ -51,11 +51,13 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
     public static final int MSG_GENERAL_RESPONSE = 0x8001;
     public static final int MSG_GENERAL_RESPONSE_2 = 0x4401;
     public static final int MSG_HEARTBEAT = 0x0002;
+    public static final int MSG_HEARTBEAT_2 = 0x0506;
     public static final int MSG_TERMINAL_REGISTER = 0x0100;
     public static final int MSG_TERMINAL_REGISTER_RESPONSE = 0x8100;
     public static final int MSG_TERMINAL_CONTROL = 0x8105;
     public static final int MSG_TERMINAL_AUTH = 0x0102;
     public static final int MSG_LOCATION_REPORT = 0x0200;
+    public static final int MSG_LOCATION_BATCH_2 = 0x0210;
     public static final int MSG_ACCELERATION = 0x2070;
     public static final int MSG_LOCATION_REPORT_2 = 0x5501;
     public static final int MSG_LOCATION_REPORT_BLIND = 0x5502;
@@ -64,6 +66,7 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
     public static final int MSG_TIME_SYNC_REQUEST = 0x0109;
     public static final int MSG_TIME_SYNC_RESPONSE = 0x8109;
     public static final int MSG_PHOTO = 0x8888;
+    public static final int MSG_TRANSPARENT = 0x0900;
 
     public static final int RESULT_SUCCESS = 0;
 
@@ -122,6 +125,9 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
                 || BitUtil.check(value, 10) || BitUtil.check(value, 11)) {
             return Position.ALARM_FAULT;
         }
+        if (BitUtil.check(value, 7) || BitUtil.check(value, 18)) {
+            return Position.ALARM_LOW_BATTERY;
+        }
         if (BitUtil.check(value, 8)) {
             return Position.ALARM_POWER_OFF;
         }
@@ -145,6 +151,28 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
         return BitUtil.check(value, 15) ? -BitUtil.to(value, 15) : BitUtil.to(value, 15);
     }
 
+    private Date readDate(ByteBuf buf, TimeZone timeZone) {
+        DateBuilder dateBuilder = new DateBuilder(timeZone)
+                .setYear(BcdUtil.readInteger(buf, 2))
+                .setMonth(BcdUtil.readInteger(buf, 2))
+                .setDay(BcdUtil.readInteger(buf, 2))
+                .setHour(BcdUtil.readInteger(buf, 2))
+                .setMinute(BcdUtil.readInteger(buf, 2))
+                .setSecond(BcdUtil.readInteger(buf, 2));
+        return dateBuilder.getDate();
+    }
+
+    private String decodeId(ByteBuf id) {
+        String serial = ByteBufUtil.hexDump(id);
+        if (serial.matches("[0-9]+")) {
+            return serial;
+        } else {
+            long imei = id.getUnsignedShort(0);
+            imei = (imei << 32) + id.getUnsignedInt(2);
+            return String.valueOf(imei) + Checksum.luhn(imei);
+        }
+    }
+
     @Override
     protected Object decode(
             Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
@@ -178,13 +206,13 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
             index = buf.readUnsignedShort();
         }
 
-        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, ByteBufUtil.hexDump(id));
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, decodeId(id));
         if (deviceSession == null) {
             return null;
         }
 
-        if (deviceSession.getTimeZone() == null) {
-            deviceSession.setTimeZone(getTimeZone(deviceSession.getDeviceId(), "GMT+8"));
+        if (!deviceSession.contains(DeviceSession.KEY_TIMEZONE)) {
+            deviceSession.set(DeviceSession.KEY_TIMEZONE, getTimeZone(deviceSession.getDeviceId(), "GMT+8"));
         }
 
         if (type == MSG_TERMINAL_REGISTER) {
@@ -193,12 +221,12 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
                 ByteBuf response = Unpooled.buffer();
                 response.writeShort(index);
                 response.writeByte(RESULT_SUCCESS);
-                response.writeBytes(ByteBufUtil.hexDump(id).getBytes(StandardCharsets.US_ASCII));
+                response.writeBytes(decodeId(id).getBytes(StandardCharsets.US_ASCII));
                 channel.writeAndFlush(new NetworkMessage(
                         formatMessage(MSG_TERMINAL_REGISTER_RESPONSE, id, false, response), remoteAddress));
             }
 
-        } else if (type == MSG_TERMINAL_AUTH || type == MSG_HEARTBEAT || type == MSG_PHOTO) {
+        } else if (type == MSG_TERMINAL_AUTH || type == MSG_HEARTBEAT || type == MSG_HEARTBEAT_2 || type == MSG_PHOTO) {
 
             sendGeneralResponse(channel, remoteAddress, id, type, index);
 
@@ -216,11 +244,11 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
 
             return decodeLocation2(deviceSession, buf, type);
 
-        } else if (type == MSG_LOCATION_BATCH) {
+        } else if (type == MSG_LOCATION_BATCH || type == MSG_LOCATION_BATCH_2) {
 
             sendGeneralResponse(channel, remoteAddress, id, type, index);
 
-            return decodeLocationBatch(deviceSession, buf);
+            return decodeLocationBatch(deviceSession, buf, type);
 
         } else if (type == MSG_TIME_SYNC_REQUEST) {
 
@@ -264,6 +292,12 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
 
             return position;
 
+        } else if (type == MSG_TRANSPARENT) {
+
+            sendGeneralResponse(channel, remoteAddress, id, type, index);
+
+            return decodeTransparent(deviceSession, buf);
+
         }
 
         return null;
@@ -295,6 +329,16 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
                 case 0x03:
                     position.set(Position.KEY_OBD_SPEED, buf.readUnsignedShort() * 0.1);
                     break;
+                case 0x56:
+                    buf.readUnsignedByte(); // power level
+                    position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte());
+                    break;
+                case 0x61:
+                    position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01);
+                    break;
+                case 0x69:
+                    position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.01);
+                    break;
                 case 0x80:
                     position.set(Position.KEY_OBD_SPEED, buf.readUnsignedByte());
                     break;
@@ -351,17 +395,13 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
         }
     }
 
-    private Position decodeLocation(DeviceSession deviceSession, ByteBuf buf) {
-
-        Position position = new Position(getProtocolName());
-        position.setDeviceId(deviceSession.getDeviceId());
-
-        position.set(Position.KEY_ALARM, decodeAlarm(buf.readUnsignedInt()));
+    private void decodeCoordinates(Position position, ByteBuf buf) {
 
         int status = buf.readInt();
 
         position.set(Position.KEY_IGNITION, BitUtil.check(status, 0));
         position.set(Position.KEY_BLOCKED, BitUtil.check(status, 10));
+        position.set(Position.KEY_CHARGE, BitUtil.check(status, 26));
 
         position.setValid(BitUtil.check(status, 1));
 
@@ -379,19 +419,28 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
         } else {
             position.setLongitude(lon);
         }
+    }
+
+    private double decodeCustomDouble(ByteBuf buf) {
+        int b1 = buf.readByte();
+        int b2 = buf.readUnsignedByte();
+        int sign = b1 != 0 ? b1 / Math.abs(b1) : 1;
+        return sign * (Math.abs(b1) + b2 / 255.0);
+    }
+
+    private Position decodeLocation(DeviceSession deviceSession, ByteBuf buf) {
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        position.set(Position.KEY_ALARM, decodeAlarm(buf.readUnsignedInt()));
+
+        decodeCoordinates(position, buf);
 
         position.setAltitude(buf.readShort());
         position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShort() * 0.1));
         position.setCourse(buf.readUnsignedShort());
-
-        DateBuilder dateBuilder = new DateBuilder(deviceSession.getTimeZone())
-                .setYear(BcdUtil.readInteger(buf, 2))
-                .setMonth(BcdUtil.readInteger(buf, 2))
-                .setDay(BcdUtil.readInteger(buf, 2))
-                .setHour(BcdUtil.readInteger(buf, 2))
-                .setMinute(BcdUtil.readInteger(buf, 2))
-                .setSecond(BcdUtil.readInteger(buf, 2));
-        position.setTime(dateBuilder.getDate());
+        position.setTime(readDate(buf, deviceSession.get(DeviceSession.KEY_TIMEZONE)));
 
         if (buf.readableBytes() == 20) {
 
@@ -411,6 +460,7 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
             int subtype = buf.readUnsignedByte();
             int length = buf.readUnsignedByte();
             int endIndex = buf.readerIndex() + length;
+            String stringValue;
             switch (subtype) {
                 case 0x01:
                     position.set(Position.KEY_ODOMETER, buf.readUnsignedInt() * 100);
@@ -418,6 +468,9 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
                 case 0x02:
                     position.set(Position.KEY_FUEL_LEVEL, buf.readUnsignedShort() * 0.1);
                     break;
+                case 0x2b:
+                    position.set(Position.KEY_FUEL_CONSUMPTION, buf.readUnsignedInt());
+                    break;
                 case 0x30:
                     position.set(Position.KEY_RSSI, buf.readUnsignedByte());
                     break;
@@ -425,12 +478,23 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
                     position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
                     break;
                 case 0x33:
-                    String sentence = buf.readCharSequence(length, StandardCharsets.US_ASCII).toString();
-                    if (sentence.startsWith("*M00")) {
-                        String lockStatus = sentence.substring(8, 8 + 7);
+                    stringValue = buf.readCharSequence(length, StandardCharsets.US_ASCII).toString();
+                    if (stringValue.startsWith("*M00")) {
+                        String lockStatus = stringValue.substring(8, 8 + 7);
                         position.set(Position.KEY_BATTERY, Integer.parseInt(lockStatus.substring(2, 5)) * 0.01);
                     }
                     break;
+                case 0x56:
+                    position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte() * 10);
+                    buf.readUnsignedByte(); // reserved
+                    break;
+                case 0x60:
+                    position.set(Position.KEY_EVENT, buf.readUnsignedShort());
+                    buf.skipBytes(length - 2);
+                    break;
+                case 0x69:
+                    position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.01);
+                    break;
                 case 0x80:
                     buf.readUnsignedByte(); // content
                     endIndex = buf.writerIndex() - 2;
@@ -452,8 +516,8 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
                     break;
                 case 0x94:
                     if (length > 0) {
-                        position.set(
-                                Position.KEY_VIN, buf.readCharSequence(length, StandardCharsets.US_ASCII).toString());
+                        stringValue = buf.readCharSequence(length, StandardCharsets.US_ASCII).toString();
+                        position.set(Position.KEY_VIN, stringValue);
                     }
                     break;
                 case 0xA7:
@@ -463,6 +527,14 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
                 case 0xAC:
                     position.set(Position.KEY_ODOMETER, buf.readUnsignedInt());
                     break;
+                case 0xBC:
+                    stringValue = buf.readCharSequence(length, StandardCharsets.US_ASCII).toString();
+                    position.set("driver", stringValue.trim());
+                    break;
+                case 0xBD:
+                    stringValue = buf.readCharSequence(length, StandardCharsets.US_ASCII).toString();
+                    position.set(Position.KEY_DRIVER_UNIQUE_ID, stringValue);
+                    break;
                 case 0xD0:
                     long userStatus = buf.readUnsignedInt();
                     if (BitUtil.check(userStatus, 3)) {
@@ -473,11 +545,22 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
                     position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.1);
                     break;
                 case 0xD4:
-                case 0xFE:
+                case 0xE1:
                     position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte());
                     break;
                 case 0xD5:
-                    position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.01);
+                    if (length == 2) {
+                        position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.01);
+                    } else {
+                        int count = buf.readUnsignedByte();
+                        for (int i = 1; i <= count; i++) {
+                            position.set("lock" + i + "Id", ByteBufUtil.hexDump(buf.readSlice(5)));
+                            position.set("lock" + i + "Card", ByteBufUtil.hexDump(buf.readSlice(5)));
+                            position.set("lock" + i + "Battery", buf.readUnsignedByte());
+                            int status = buf.readUnsignedShort();
+                            position.set("lock" + i + "Locked", !BitUtil.check(status, 5));
+                        }
+                    }
                     break;
                 case 0xDA:
                     buf.readUnsignedShort(); // string cut count
@@ -486,6 +569,14 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
                     position.set(Position.KEY_MOTION, BitUtil.check(deviceStatus, 2));
                     position.set("cover", BitUtil.check(deviceStatus, 3));
                     break;
+                case 0xE6:
+                    while (buf.readerIndex() < endIndex) {
+                        int sensorIndex = buf.readUnsignedByte();
+                        buf.skipBytes(6); // mac
+                        position.set(Position.PREFIX_TEMP + sensorIndex, decodeCustomDouble(buf));
+                        position.set("humidity" + sensorIndex, decodeCustomDouble(buf));
+                    }
+                    break;
                 case 0xEB:
                     if (buf.getUnsignedShort(buf.readerIndex()) > 200) {
                         Network network = new Network();
@@ -513,6 +604,16 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
                                 case 0x00CE:
                                     position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01);
                                     break;
+                                case 0x00D8:
+                                    Network network = new Network();
+                                    network.addCellTower(CellTower.from(
+                                            buf.readUnsignedShort(), buf.readUnsignedByte(),
+                                            buf.readUnsignedShort(), buf.readUnsignedInt()));
+                                    position.setNetwork(network);
+                                    break;
+                                case 0xE1:
+                                    position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte());
+                                    break;
                                 default:
                                     buf.skipBytes(extendedLength - 2);
                                     break;
@@ -521,8 +622,8 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
                     }
                     break;
                 case 0xED:
-                    String license = buf.readCharSequence(length, StandardCharsets.US_ASCII).toString().trim();
-                    position.set("driverLicense", license);
+                    stringValue = buf.readCharSequence(length, StandardCharsets.US_ASCII).toString();
+                    position.set(Position.KEY_CARD, stringValue.trim());
                     break;
                 case 0xEE:
                     position.set(Position.KEY_RSSI, buf.readUnsignedByte());
@@ -530,6 +631,107 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
                     position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.001);
                     position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
                     break;
+                case 0xF3:
+                    while (buf.readerIndex() < endIndex) {
+                        int extendedType = buf.readUnsignedShort();
+                        int extendedLength = buf.readUnsignedByte();
+                        switch (extendedType) {
+                            case 0x0002:
+                                position.set(Position.KEY_OBD_SPEED, buf.readUnsignedShort() * 0.1);
+                                break;
+                            case 0x0003:
+                                position.set(Position.KEY_RPM, buf.readUnsignedShort());
+                                break;
+                            case 0x0004:
+                                position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.001);
+                                break;
+                            case 0x0005:
+                                position.set(Position.KEY_OBD_ODOMETER, buf.readUnsignedInt() * 100);
+                                break;
+                            case 0x0007:
+                                position.set(Position.KEY_FUEL_CONSUMPTION, buf.readUnsignedShort() * 0.1);
+                                break;
+                            case 0x0008:
+                                position.set(Position.KEY_ENGINE_LOAD, buf.readUnsignedShort() * 0.1);
+                                break;
+                            case 0x0009:
+                                position.set(Position.KEY_COOLANT_TEMP, buf.readUnsignedShort() - 40);
+                                break;
+                            case 0x000B:
+                                position.set("intakePressure", buf.readUnsignedShort());
+                                break;
+                            case 0x000C:
+                                position.set("intakeTemp", buf.readUnsignedShort() - 40);
+                                break;
+                            case 0x000D:
+                                position.set("intakeFlow", buf.readUnsignedShort());
+                                break;
+                            case 0x000E:
+                                position.set(Position.KEY_THROTTLE, buf.readUnsignedShort() * 100 / 255);
+                                break;
+                            case 0x0050:
+                                position.set(Position.KEY_VIN, buf.readSlice(17).toString(StandardCharsets.US_ASCII));
+                                break;
+                            case 0x0100:
+                                position.set(Position.KEY_ODOMETER_TRIP, buf.readUnsignedShort() * 0.1);
+                                break;
+                            case 0x0102:
+                                position.set("tripFuel", buf.readUnsignedShort() * 0.1);
+                                break;
+                            case 0x0112:
+                                position.set("hardAccelerationCount", buf.readUnsignedShort());
+                                break;
+                            case 0x0113:
+                                position.set("hardDecelerationCount", buf.readUnsignedShort());
+                                break;
+                            case 0x0114:
+                                position.set("hardCorneringCount", buf.readUnsignedShort());
+                                break;
+                            default:
+                                buf.skipBytes(extendedLength);
+                                break;
+                        }
+                    }
+                    break;
+                case 0xFE:
+                    if (length == 1) {
+                        position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte());
+                    } else if (length == 2) {
+                        position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.1);
+                    } else {
+                        int mark = buf.readUnsignedByte();
+                        if (mark == 0x7C) {
+                            while (buf.readerIndex() < endIndex) {
+                                int extendedType = buf.readUnsignedByte();
+                                int extendedLength = buf.readUnsignedByte();
+                                switch (extendedType) {
+                                    case 0x01:
+                                        long alarms = buf.readUnsignedInt();
+                                        if (BitUtil.check(alarms, 0)) {
+                                            position.set(Position.KEY_ALARM, Position.ALARM_ACCELERATION);
+                                        }
+                                        if (BitUtil.check(alarms, 1)) {
+                                            position.set(Position.KEY_ALARM, Position.ALARM_BRAKING);
+                                        }
+                                        if (BitUtil.check(alarms, 2)) {
+                                            position.set(Position.KEY_ALARM, Position.ALARM_CORNERING);
+                                        }
+                                        if (BitUtil.check(alarms, 3)) {
+                                            position.set(Position.KEY_ALARM, Position.ALARM_ACCIDENT);
+                                        }
+                                        if (BitUtil.check(alarms, 4)) {
+                                            position.set(Position.KEY_ALARM, Position.ALARM_TAMPERING);
+                                        }
+                                        break;
+                                    default:
+                                        buf.skipBytes(extendedLength);
+                                        break;
+                                }
+                            }
+                        }
+                        position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte());
+                    }
+                    break;
                 default:
                     break;
             }
@@ -558,7 +760,8 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
             position.set(Position.KEY_CHARGE, true);
         }
 
-        position.setNetwork(new Network(CellTower.fromCidLac(buf.readUnsignedInt(), buf.readUnsignedShort())));
+        position.setNetwork(new Network(CellTower.fromCidLac(
+                getConfig(), buf.readUnsignedInt(), buf.readUnsignedShort())));
 
         int product = buf.readUnsignedByte();
         int status = buf.readUnsignedShort();
@@ -583,27 +786,235 @@ public class HuabaoProtocolDecoder extends BaseProtocolDecoder {
 
         position.set(Position.KEY_STATUS, status);
 
+        while (buf.readableBytes() > 2) {
+            int id = buf.readUnsignedByte();
+            int length = buf.readUnsignedByte();
+            switch (id) {
+                case 0x02:
+                    position.setAltitude(buf.readShort());
+                    break;
+                case 0x0C:
+                    int x = buf.readUnsignedShort();
+                    if (x > 0x8000) {
+                        x -= 0x10000;
+                    }
+                    int y = buf.readUnsignedShort();
+                    if (y > 0x8000) {
+                        y -= 0x10000;
+                    }
+                    int z = buf.readUnsignedShort();
+                    if (z > 0x8000) {
+                        z -= 0x10000;
+                    }
+                    position.set("tilt", String.format("[%d,%d,%d]", x, y, z));
+                    break;
+                default:
+                    buf.skipBytes(length);
+                    break;
+            }
+        }
+
         return position;
     }
 
-    private List<Position> decodeLocationBatch(DeviceSession deviceSession, ByteBuf buf) {
+    private List<Position> decodeLocationBatch(DeviceSession deviceSession, ByteBuf buf, int type) {
 
         List<Position> positions = new LinkedList<>();
 
-        int count = buf.readUnsignedShort();
-        int locationType = buf.readUnsignedByte();
+        int locationType = 0;
+        if (type == MSG_LOCATION_BATCH) {
+            buf.readUnsignedShort(); // count
+            locationType = buf.readUnsignedByte();
+        }
 
-        for (int i = 0; i < count; i++) {
-            int endIndex = buf.readUnsignedShort() + buf.readerIndex();
-            Position position = decodeLocation(deviceSession, buf);
+        while (buf.readableBytes() > 2) {
+            int length = type == MSG_LOCATION_BATCH_2 ? buf.readUnsignedByte() : buf.readUnsignedShort();
+            ByteBuf fragment = buf.readSlice(length);
+            Position position = decodeLocation(deviceSession, fragment);
             if (locationType > 0) {
                 position.set(Position.KEY_ARCHIVE, true);
             }
             positions.add(position);
-            buf.readerIndex(endIndex);
         }
 
         return positions;
     }
 
+    private Position decodeTransparent(DeviceSession deviceSession, ByteBuf buf) {
+
+        int type = buf.readUnsignedByte();
+
+        if (type == 0xF0) {
+            Position position = new Position(getProtocolName());
+            position.setDeviceId(deviceSession.getDeviceId());
+
+            Date time = readDate(buf, deviceSession.get(DeviceSession.KEY_TIMEZONE));
+
+            if (buf.readUnsignedByte() > 0) {
+                position.set(Position.KEY_ARCHIVE, true);
+            }
+
+            buf.readUnsignedByte(); // vehicle type
+
+            int count;
+            int subtype = buf.readUnsignedByte();
+            switch (subtype) {
+                case 0x01:
+                    count = buf.readUnsignedByte();
+                    for (int i = 0; i < count; i++) {
+                        int id = buf.readUnsignedShort();
+                        int length = buf.readUnsignedByte();
+                        switch (id) {
+                            case 0x0102:
+                            case 0x0528:
+                            case 0x0546:
+                                position.set(Position.KEY_ODOMETER, buf.readUnsignedInt() * 100);
+                                break;
+                            case 0x0103:
+                                position.set(Position.KEY_FUEL_LEVEL, buf.readUnsignedInt() * 0.01);
+                                break;
+                            case 0x052A:
+                                position.set(Position.KEY_FUEL_LEVEL, buf.readUnsignedShort() * 0.01);
+                                break;
+                            case 0x0105:
+                            case 0x052C:
+                                position.set(Position.KEY_FUEL_USED, buf.readUnsignedInt() * 0.01);
+                                break;
+                            case 0x014A:
+                            case 0x0537:
+                            case 0x0538:
+                            case 0x0539:
+                                position.set(Position.KEY_FUEL_CONSUMPTION, buf.readUnsignedShort() * 0.01);
+                                break;
+                            case 0x052B:
+                                position.set(Position.KEY_FUEL_LEVEL, buf.readUnsignedByte());
+                                break;
+                            case 0x052D:
+                                position.set(Position.KEY_COOLANT_TEMP, buf.readUnsignedByte() - 40);
+                                break;
+                            case 0x052E:
+                                position.set("airTemp", buf.readUnsignedByte() - 40);
+                                break;
+                            case 0x0530:
+                                position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.001);
+                                break;
+                            case 0x0535:
+                                position.set(Position.KEY_OBD_SPEED, buf.readUnsignedShort() * 0.1);
+                                break;
+                            case 0x0536:
+                                position.set(Position.KEY_RPM, buf.readUnsignedShort());
+                                break;
+                            case 0x053D:
+                                position.set("intakePressure", buf.readUnsignedShort() * 0.1);
+                                break;
+                            case 0x0544:
+                                position.set("liquidLevel", buf.readUnsignedByte());
+                                break;
+                            case 0x0547:
+                            case 0x0548:
+                                position.set(Position.KEY_THROTTLE, buf.readUnsignedByte());
+                                break;
+                            default:
+                                switch (length) {
+                                    case 1:
+                                        position.set(Position.PREFIX_IO + id, buf.readUnsignedByte());
+                                        break;
+                                    case 2:
+                                        position.set(Position.PREFIX_IO + id, buf.readUnsignedShort());
+                                        break;
+                                    case 4:
+                                        position.set(Position.PREFIX_IO + id, buf.readUnsignedInt());
+                                        break;
+                                    default:
+                                        buf.skipBytes(length);
+                                        break;
+                                }
+                                break;
+                        }
+                    }
+                    getLastLocation(position, time);
+                    decodeCoordinates(position, buf);
+                    position.setTime(time);
+                    break;
+                case 0x02:
+                    List<String> codes = new LinkedList<>();
+                    count = buf.readUnsignedShort();
+                    for (int i = 0; i < count; i++) {
+                        buf.readUnsignedInt(); // system id
+                        int codeCount = buf.readUnsignedShort();
+                        for (int j = 0; j < codeCount; j++) {
+                            buf.readUnsignedInt(); // dtc
+                            buf.readUnsignedInt(); // status
+                            codes.add(buf.readCharSequence(
+                                    buf.readUnsignedShort(), StandardCharsets.US_ASCII).toString().trim());
+                        }
+                    }
+                    position.set(Position.KEY_DTCS, String.join(" ", codes));
+                    getLastLocation(position, time);
+                    decodeCoordinates(position, buf);
+                    position.setTime(time);
+                    break;
+                case 0x03:
+                    count = buf.readUnsignedByte();
+                    for (int i = 0; i < count; i++) {
+                        int id = buf.readUnsignedByte();
+                        int length = buf.readUnsignedByte();
+                        switch (id) {
+                            case 0x01:
+                                position.set(Position.KEY_ALARM, Position.ALARM_POWER_RESTORED);
+                                break;
+                            case 0x02:
+                                position.set(Position.KEY_ALARM, Position.ALARM_POWER_CUT);
+                                break;
+                            case 0x1A:
+                                position.set(Position.KEY_ALARM, Position.ALARM_ACCELERATION);
+                                break;
+                            case 0x1B:
+                                position.set(Position.KEY_ALARM, Position.ALARM_BRAKING);
+                                break;
+                            case 0x1C:
+                                position.set(Position.KEY_ALARM, Position.ALARM_CORNERING);
+                                break;
+                            case 0x1D:
+                            case 0x1E:
+                            case 0x1F:
+                                position.set(Position.KEY_ALARM, Position.ALARM_LANE_CHANGE);
+                                break;
+                            case 0x23:
+                                position.set(Position.KEY_ALARM, Position.ALARM_FATIGUE_DRIVING);
+                                break;
+                            case 0x26:
+                            case 0x27:
+                            case 0x28:
+                                position.set(Position.KEY_ALARM, Position.ALARM_ACCIDENT);
+                                break;
+                            case 0x31:
+                            case 0x32:
+                                position.set(Position.KEY_ALARM, Position.ALARM_DOOR);
+                                break;
+                            default:
+                                break;
+                        }
+                        buf.skipBytes(length);
+                    }
+                    getLastLocation(position, time);
+                    decodeCoordinates(position, buf);
+                    position.setTime(time);
+                    break;
+                case 0x0B:
+                    if (buf.readUnsignedByte() > 0) {
+                        position.set(Position.KEY_VIN, buf.readCharSequence(17, StandardCharsets.US_ASCII).toString());
+                    }
+                    getLastLocation(position, time);
+                    break;
+                default:
+                    return null;
+            }
+
+            return position;
+        }
+
+        return null;
+    }
+
 }
diff --git a/src/main/java/org/traccar/protocol/HuabaoProtocolEncoder.java b/src/main/java/org/traccar/protocol/HuabaoProtocolEncoder.java
index 55c1e0c3b..ada7e3fba 100644
--- a/src/main/java/org/traccar/protocol/HuabaoProtocolEncoder.java
+++ b/src/main/java/org/traccar/protocol/HuabaoProtocolEncoder.java
@@ -18,10 +18,11 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import org.traccar.BaseProtocolEncoder;
-import org.traccar.Context;
+import org.traccar.Protocol;
+import org.traccar.config.Keys;
 import org.traccar.helper.DataConverter;
+import org.traccar.helper.model.AttributeUtil;
 import org.traccar.model.Command;
-import org.traccar.Protocol;
 
 import java.text.SimpleDateFormat;
 import java.util.Date;
@@ -35,8 +36,8 @@ public class HuabaoProtocolEncoder extends BaseProtocolEncoder {
     @Override
     protected Object encodeCommand(Command command) {
 
-        boolean alternative = Context.getIdentityManager().lookupAttributeBoolean(
-                command.getDeviceId(), getProtocolName() + ".alternative", false, false, true);
+        boolean alternative = AttributeUtil.lookup(
+                getCacheManager(), Keys.PROTOCOL_ALTERNATIVE.withPrefix(getProtocolName()), command.getDeviceId());
 
         ByteBuf id = Unpooled.wrappedBuffer(
                 DataConverter.parseHex(getUniqueId(command.getDeviceId())));
diff --git a/src/main/java/org/traccar/protocol/HunterProProtocol.java b/src/main/java/org/traccar/protocol/HunterProProtocol.java
index 9f6424a57..64dab33b1 100644
--- a/src/main/java/org/traccar/protocol/HunterProProtocol.java
+++ b/src/main/java/org/traccar/protocol/HunterProProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class HunterProProtocol extends BaseProtocol {
 
-    public HunterProProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public HunterProProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, "\r"));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/HunterProProtocolDecoder.java b/src/main/java/org/traccar/protocol/HunterProProtocolDecoder.java
index 06bc12d59..eada1fd9a 100644
--- a/src/main/java/org/traccar/protocol/HunterProProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/HunterProProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/IdplProtocol.java b/src/main/java/org/traccar/protocol/IdplProtocol.java
index 418178756..1e44ad74c 100644
--- a/src/main/java/org/traccar/protocol/IdplProtocol.java
+++ b/src/main/java/org/traccar/protocol/IdplProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class IdplProtocol extends BaseProtocol {
 
-    public IdplProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public IdplProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/IdplProtocolDecoder.java b/src/main/java/org/traccar/protocol/IdplProtocolDecoder.java
index cf3c03d7f..72409b168 100644
--- a/src/main/java/org/traccar/protocol/IdplProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/IdplProtocolDecoder.java
@@ -20,7 +20,7 @@ import java.util.regex.Pattern;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.Parser.CoordinateFormat;
diff --git a/src/main/java/org/traccar/protocol/IntellitracProtocol.java b/src/main/java/org/traccar/protocol/IntellitracProtocol.java
index 3abf40da7..a82e6a5db 100644
--- a/src/main/java/org/traccar/protocol/IntellitracProtocol.java
+++ b/src/main/java/org/traccar/protocol/IntellitracProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class IntellitracProtocol extends BaseProtocol {
 
-    public IntellitracProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public IntellitracProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new IntellitracFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/IntellitracProtocolDecoder.java b/src/main/java/org/traccar/protocol/IntellitracProtocolDecoder.java
index 930d4f23b..b86584016 100644
--- a/src/main/java/org/traccar/protocol/IntellitracProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/IntellitracProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/IotmProtocol.java b/src/main/java/org/traccar/protocol/IotmProtocol.java
index f202d9b9d..1631b67d8 100644
--- a/src/main/java/org/traccar/protocol/IotmProtocol.java
+++ b/src/main/java/org/traccar/protocol/IotmProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.mqtt.MqttEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class IotmProtocol extends BaseProtocol {
 
-    public IotmProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public IotmProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(MqttEncoder.INSTANCE);
                 pipeline.addLast(new MqttDecoder());
                 pipeline.addLast(new IotmProtocolDecoder(IotmProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/IotmProtocolDecoder.java b/src/main/java/org/traccar/protocol/IotmProtocolDecoder.java
index 9c94ffd4b..7bbe6c8de 100644
--- a/src/main/java/org/traccar/protocol/IotmProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/IotmProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2020 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,7 +25,7 @@ import io.netty.handler.codec.mqtt.MqttMessageBuilders;
 import io.netty.handler.codec.mqtt.MqttPublishMessage;
 import io.netty.handler.codec.mqtt.MqttSubscribeMessage;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
@@ -260,7 +260,7 @@ public class IotmProtocolDecoder extends BaseProtocolDecoder {
             MqttSubscribeMessage message = (MqttSubscribeMessage) msg;
 
             MqttMessage response = MqttMessageBuilders.subAck()
-                    .packetId((short) message.variableHeader().messageId())
+                    .packetId(message.variableHeader().messageId())
                     .build();
 
             if (channel != null) {
@@ -339,7 +339,7 @@ public class IotmProtocolDecoder extends BaseProtocolDecoder {
             buf.readUnsignedByte(); // checksum
 
             MqttMessage response = MqttMessageBuilders.pubAck()
-                    .packetId((short) message.variableHeader().packetId())
+                    .packetId(message.variableHeader().packetId())
                     .build();
 
             if (channel != null) {
diff --git a/src/main/java/org/traccar/protocol/ItsProtocol.java b/src/main/java/org/traccar/protocol/ItsProtocol.java
index 45df3da11..7d59ea60c 100644
--- a/src/main/java/org/traccar/protocol/ItsProtocol.java
+++ b/src/main/java/org/traccar/protocol/ItsProtocol.java
@@ -20,17 +20,21 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class ItsProtocol extends BaseProtocol {
 
-    public ItsProtocol() {
+    @Inject
+    public ItsProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_ENGINE_RESUME);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new ItsFrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/ItsProtocolDecoder.java b/src/main/java/org/traccar/protocol/ItsProtocolDecoder.java
index 9eed58347..8a8d734cf 100644
--- a/src/main/java/org/traccar/protocol/ItsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ItsProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
@@ -205,7 +205,8 @@ public class ItsProtocolDecoder extends BaseProtocolDecoder {
         if (parser.hasNext()) {
             position.setValid(parser.nextInt() == 1);
         }
-        position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
+        position.setTime(parser.nextDateTime(
+                Parser.DateTimeFormat.DMY_HMS, getTimeZone(deviceSession.getDeviceId()).getID()));
         if (parser.hasNext()) {
             position.setValid(parser.next().matches("[1A]"));
         }
diff --git a/src/main/java/org/traccar/protocol/Ivt401Protocol.java b/src/main/java/org/traccar/protocol/Ivt401Protocol.java
index fb44e4fe9..5132c7467 100644
--- a/src/main/java/org/traccar/protocol/Ivt401Protocol.java
+++ b/src/main/java/org/traccar/protocol/Ivt401Protocol.java
@@ -20,13 +20,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Ivt401Protocol extends BaseProtocol {
 
-    public Ivt401Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Ivt401Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, ';'));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new Ivt401ProtocolDecoder(Ivt401Protocol.this));
diff --git a/src/main/java/org/traccar/protocol/Ivt401ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Ivt401ProtocolDecoder.java
index 63556e7a9..972f22ebe 100644
--- a/src/main/java/org/traccar/protocol/Ivt401ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Ivt401ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/JidoProtocol.java b/src/main/java/org/traccar/protocol/JidoProtocol.java
index 2a2e71dbe..b30cc586a 100644
--- a/src/main/java/org/traccar/protocol/JidoProtocol.java
+++ b/src/main/java/org/traccar/protocol/JidoProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class JidoProtocol extends BaseProtocol {
 
-    public JidoProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public JidoProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '#'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/JidoProtocolDecoder.java b/src/main/java/org/traccar/protocol/JidoProtocolDecoder.java
index 40fa8864d..98fb36e11 100644
--- a/src/main/java/org/traccar/protocol/JidoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/JidoProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/JpKorjarProtocol.java b/src/main/java/org/traccar/protocol/JpKorjarProtocol.java
index fe5b2480d..ae312ea3e 100644
--- a/src/main/java/org/traccar/protocol/JpKorjarProtocol.java
+++ b/src/main/java/org/traccar/protocol/JpKorjarProtocol.java
@@ -1,6 +1,6 @@
 /*
+ * Copyright 2018 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2016 Nyash (nyashh@gmail.com)
- * Copyright 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class JpKorjarProtocol extends BaseProtocol {
 
-    public JpKorjarProtocol() {
-        addServer(new TrackerServer(false, this.getName()) {
+    @Inject
+    public JpKorjarProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new JpKorjarFrameDecoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new JpKorjarProtocolDecoder(JpKorjarProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/JpKorjarProtocolDecoder.java b/src/main/java/org/traccar/protocol/JpKorjarProtocolDecoder.java
index 33026918a..ffddcc568 100644
--- a/src/main/java/org/traccar/protocol/JpKorjarProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/JpKorjarProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/Jt600FrameDecoder.java b/src/main/java/org/traccar/protocol/Jt600FrameDecoder.java
index bfefb94a7..f7890f814 100644
--- a/src/main/java/org/traccar/protocol/Jt600FrameDecoder.java
+++ b/src/main/java/org/traccar/protocol/Jt600FrameDecoder.java
@@ -35,7 +35,7 @@ public class Jt600FrameDecoder extends BaseFrameDecoder {
         char type = (char) buf.getByte(buf.readerIndex());
 
         if (type == '$') {
-            boolean longFormat = Jt600ProtocolDecoder.isLongFormat(buf, buf.readerIndex() + 1);
+            boolean longFormat = Jt600ProtocolDecoder.isLongFormat(buf);
             int length = buf.getUnsignedShort(buf.readerIndex() + (longFormat ? 8 : 7)) + 10;
             if (length <= buf.readableBytes()) {
                 return buf.readRetainedSlice(length);
diff --git a/src/main/java/org/traccar/protocol/Jt600Protocol.java b/src/main/java/org/traccar/protocol/Jt600Protocol.java
index 37c82f741..9dc62662f 100644
--- a/src/main/java/org/traccar/protocol/Jt600Protocol.java
+++ b/src/main/java/org/traccar/protocol/Jt600Protocol.java
@@ -19,19 +19,23 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class Jt600Protocol extends BaseProtocol {
 
-    public Jt600Protocol() {
+    @Inject
+    public Jt600Protocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_ENGINE_RESUME,
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_SET_TIMEZONE,
                 Command.TYPE_REBOOT_DEVICE);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new Jt600FrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new Jt600ProtocolEncoder(Jt600Protocol.this));
diff --git a/src/main/java/org/traccar/protocol/Jt600ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Jt600ProtocolDecoder.java
index b4b70091b..dc763dea7 100644
--- a/src/main/java/org/traccar/protocol/Jt600ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Jt600ProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
@@ -86,8 +86,8 @@ public class Jt600ProtocolDecoder extends BaseProtocolDecoder {
 
     }
 
-    static boolean isLongFormat(ByteBuf buf, int flagIndex) {
-        return buf.getUnsignedByte(flagIndex) >> 4 >= 7;
+    static boolean isLongFormat(ByteBuf buf) {
+        return buf.getUnsignedByte(buf.readerIndex() + 8) == 0;
     }
 
     static void decodeBinaryLocation(ByteBuf buf, Position position) {
@@ -123,9 +123,9 @@ public class Jt600ProtocolDecoder extends BaseProtocolDecoder {
 
         List<Position> positions = new LinkedList<>();
 
-        buf.readByte(); // header
+        boolean longFormat = isLongFormat(buf);
 
-        boolean longFormat = isLongFormat(buf, buf.readerIndex());
+        buf.readByte(); // header
 
         String id = String.valueOf(Long.parseLong(ByteBufUtil.hexDump(buf.readSlice(5))));
         DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, id);
@@ -143,7 +143,7 @@ public class Jt600ProtocolDecoder extends BaseProtocolDecoder {
 
         boolean responseRequired = false;
 
-        while (buf.readableBytes() > 1) {
+        while (buf.readableBytes() >= 17) {
 
             Position position = new Position(getProtocolName());
             position.setDeviceId(deviceSession.getDeviceId());
@@ -177,7 +177,8 @@ public class Jt600ProtocolDecoder extends BaseProtocolDecoder {
                     position.set(Position.KEY_BATTERY_LEVEL, battery);
                 }
 
-                CellTower cellTower = CellTower.fromCidLac(buf.readUnsignedShort(), buf.readUnsignedShort());
+                CellTower cellTower = CellTower.fromCidLac(
+                        getConfig(), buf.readUnsignedShort(), buf.readUnsignedShort());
                 cellTower.setSignalStrength((int) buf.readUnsignedByte());
                 position.setNetwork(new Network(cellTower));
 
@@ -201,7 +202,7 @@ public class Jt600ProtocolDecoder extends BaseProtocolDecoder {
                 int rssi = buf.readUnsignedByte();
 
                 if (cid != 0 && lac != 0) {
-                    CellTower cellTower = CellTower.fromCidLac(cid, lac);
+                    CellTower cellTower = CellTower.fromCidLac(getConfig(), cid, lac);
                     cellTower.setSignalStrength(rssi);
                     position.setNetwork(new Network(cellTower));
                 } else {
@@ -356,7 +357,7 @@ public class Jt600ProtocolDecoder extends BaseProtocolDecoder {
         position.set(Position.KEY_BATTERY_LEVEL, parser.nextInt(0));
         position.set(Position.KEY_STATUS, parser.nextBinInt(0));
 
-        CellTower cellTower = CellTower.fromCidLac(parser.nextInt(0), parser.nextInt(0));
+        CellTower cellTower = CellTower.fromCidLac(getConfig(), parser.nextInt(0), parser.nextInt(0));
         cellTower.setSignalStrength(parser.nextInt(0));
         position.setNetwork(new Network(cellTower));
 
diff --git a/src/main/java/org/traccar/protocol/KenjiProtocol.java b/src/main/java/org/traccar/protocol/KenjiProtocol.java
index 90c0c511c..b4e610cbd 100644
--- a/src/main/java/org/traccar/protocol/KenjiProtocol.java
+++ b/src/main/java/org/traccar/protocol/KenjiProtocol.java
@@ -22,13 +22,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class KenjiProtocol extends BaseProtocol {
 
-    public KenjiProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public KenjiProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/KenjiProtocolDecoder.java b/src/main/java/org/traccar/protocol/KenjiProtocolDecoder.java
index 63812242a..fb989c72e 100644
--- a/src/main/java/org/traccar/protocol/KenjiProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/KenjiProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/KhdProtocol.java b/src/main/java/org/traccar/protocol/KhdProtocol.java
index 60a2aea7f..add13ef16 100644
--- a/src/main/java/org/traccar/protocol/KhdProtocol.java
+++ b/src/main/java/org/traccar/protocol/KhdProtocol.java
@@ -19,11 +19,15 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class KhdProtocol extends BaseProtocol {
 
-    public KhdProtocol() {
+    @Inject
+    public KhdProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_ENGINE_RESUME,
@@ -33,9 +37,9 @@ public class KhdProtocol extends BaseProtocol {
                 Command.TYPE_SET_ODOMETER,
                 Command.TYPE_POSITION_SINGLE);
 
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(512, 3, 2));
                 pipeline.addLast(new KhdProtocolEncoder(KhdProtocol.this));
                 pipeline.addLast(new KhdProtocolDecoder(KhdProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/KhdProtocolDecoder.java b/src/main/java/org/traccar/protocol/KhdProtocolDecoder.java
index a14f9b8a4..dd2e1dbfd 100644
--- a/src/main/java/org/traccar/protocol/KhdProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/KhdProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
@@ -205,6 +205,9 @@ public class KhdProtocolDecoder extends BaseProtocolDecoder {
                                 }
                             }
                             break;
+                        case 0x20:
+                            position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte());
+                            break;
                         case 0x23:
                             Network network = new Network();
                             int count = buf.readUnsignedByte();
diff --git a/src/main/java/org/traccar/protocol/KhdProtocolEncoder.java b/src/main/java/org/traccar/protocol/KhdProtocolEncoder.java
index 8aeb9660d..12353b415 100644
--- a/src/main/java/org/traccar/protocol/KhdProtocolEncoder.java
+++ b/src/main/java/org/traccar/protocol/KhdProtocolEncoder.java
@@ -84,7 +84,7 @@ public class KhdProtocolEncoder extends BaseProtocolEncoder {
                 return encodeCommand(MSG_FACTORY_RESET, uniqueId, null);
             case Command.TYPE_SET_SPEED_LIMIT:
                 ByteBuf content = Unpooled.buffer();
-                content.writeByte(Integer.parseInt(command.getString(Command.KEY_DATA)));
+                content.writeByte(command.getInteger(Command.KEY_DATA));
                 return encodeCommand(MSG_RESUME_OIL, uniqueId, content);
             case Command.TYPE_SET_ODOMETER:
                 return encodeCommand(MSG_DELETE_MILEAGE, uniqueId, null);
diff --git a/src/main/java/org/traccar/protocol/L100Protocol.java b/src/main/java/org/traccar/protocol/L100Protocol.java
index 942029307..fa6d1b07e 100644
--- a/src/main/java/org/traccar/protocol/L100Protocol.java
+++ b/src/main/java/org/traccar/protocol/L100Protocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class L100Protocol extends BaseProtocol {
 
-    public L100Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public L100Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new L100FrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/L100ProtocolDecoder.java b/src/main/java/org/traccar/protocol/L100ProtocolDecoder.java
index 5b5eb7d60..820de8f1c 100644
--- a/src/main/java/org/traccar/protocol/L100ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/L100ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/LacakProtocol.java b/src/main/java/org/traccar/protocol/LacakProtocol.java
index 0a0499ad7..ddaf5078d 100644
--- a/src/main/java/org/traccar/protocol/LacakProtocol.java
+++ b/src/main/java/org/traccar/protocol/LacakProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.http.HttpResponseEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class LacakProtocol extends BaseProtocol {
 
-    public LacakProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public LacakProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HttpResponseEncoder());
                 pipeline.addLast(new HttpRequestDecoder());
                 pipeline.addLast(new HttpObjectAggregator(16384));
diff --git a/src/main/java/org/traccar/protocol/LacakProtocolDecoder.java b/src/main/java/org/traccar/protocol/LacakProtocolDecoder.java
index 132087c8f..66aab3490 100644
--- a/src/main/java/org/traccar/protocol/LacakProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/LacakProtocolDecoder.java
@@ -19,13 +19,13 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateUtil;
 import org.traccar.model.Position;
 
-import javax.json.Json;
-import javax.json.JsonObject;
+import jakarta.json.Json;
+import jakarta.json.JsonObject;
 import java.io.StringReader;
 import java.net.SocketAddress;
 import java.nio.charset.StandardCharsets;
diff --git a/src/main/java/org/traccar/protocol/LaipacProtocol.java b/src/main/java/org/traccar/protocol/LaipacProtocol.java
index 1d561dbd2..65b1a57e9 100644
--- a/src/main/java/org/traccar/protocol/LaipacProtocol.java
+++ b/src/main/java/org/traccar/protocol/LaipacProtocol.java
@@ -18,23 +18,27 @@ package org.traccar.protocol;
 import io.netty.handler.codec.LineBasedFrameDecoder;
 import io.netty.handler.codec.string.StringDecoder;
 import io.netty.handler.codec.string.StringEncoder;
-import org.traccar.model.Command;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+import org.traccar.model.Command;
+
+import jakarta.inject.Inject;
 
 public class LaipacProtocol extends BaseProtocol {
 
-    public LaipacProtocol() {
+    @Inject
+    public LaipacProtocol(Config config) {
 
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM,
                 Command.TYPE_POSITION_SINGLE,
                 Command.TYPE_REBOOT_DEVICE);
 
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/LaipacProtocolDecoder.java b/src/main/java/org/traccar/protocol/LaipacProtocolDecoder.java
index 45890e9a2..5745909c7 100644
--- a/src/main/java/org/traccar/protocol/LaipacProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/LaipacProtocolDecoder.java
@@ -17,8 +17,8 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.helper.model.AttributeUtil;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
@@ -28,6 +28,8 @@ import org.traccar.helper.PatternBuilder;
 import org.traccar.model.CellTower;
 import org.traccar.model.Network;
 import org.traccar.model.Position;
+import org.traccar.model.Device;
+import org.traccar.helper.BitUtil;
 
 import java.net.SocketAddress;
 import java.util.regex.Pattern;
@@ -108,19 +110,31 @@ public class LaipacProtocolDecoder extends BaseProtocolDecoder {
         }
     }
 
-    private String decodeEvent(String event, Position position) {
+    private String decodeEvent(String event, Position position, String model) {
 
         if (event.length() == 1) {
             char inputStatus = event.charAt(0);
             if (inputStatus >= 'A' && inputStatus <= 'D') {
                 int inputStatusInt = inputStatus - 'A';
-                position.set(Position.PREFIX_IN + 1, inputStatusInt & 1);
-                position.set(Position.PREFIX_IN + 2, inputStatusInt & 2);
+                position.set(Position.PREFIX_IN + 1, (boolean) BitUtil.check(inputStatusInt, 0));
+                position.set(Position.PREFIX_IN + 2, (boolean) BitUtil.check(inputStatusInt, 1));
+                if ("SF-Lite".equals(model)) {
+                    position.set(Position.PREFIX_IN + 3, false);
+                }
+                return null;
+            } else if (inputStatus >= 'O' && inputStatus <= 'R') {
+                int inputStatusInt = inputStatus - 'O';
+                position.set(Position.PREFIX_IN + 1, (boolean) BitUtil.check(inputStatusInt, 0));
+                position.set(Position.PREFIX_IN + 2, (boolean) BitUtil.check(inputStatusInt, 1));
+                if ("SF-Lite".equals(model)) {
+                    position.set(Position.PREFIX_IN + 3, true);
+                }
                 return null;
             }
         }
 
         return event;
+
     }
 
     private void sendEventResponse(
@@ -132,6 +146,9 @@ public class LaipacProtocolDecoder extends BaseProtocolDecoder {
             case "3":
                 responseCode = "d";
                 break;
+            case "M":
+                responseCode = "m";
+                break;
             case "S":
             case "T":
                 responseCode = "t";
@@ -209,6 +226,8 @@ public class LaipacProtocolDecoder extends BaseProtocolDecoder {
             return null;
         }
 
+        String model = getCacheManager().getObject(Device.class, deviceSession.getDeviceId()).getModel();
+
         Position position = new Position(getProtocolName());
 
         position.setDeviceId(deviceSession.getDeviceId());
@@ -230,12 +249,17 @@ public class LaipacProtocolDecoder extends BaseProtocolDecoder {
 
         String event = parser.next();
         position.set(Position.KEY_ALARM, decodeAlarm(event));
-        position.set(Position.KEY_EVENT, decodeEvent(event, position));
+        position.set(Position.KEY_EVENT, decodeEvent(event, position, model));
         position.set(Position.KEY_BATTERY, Double.parseDouble(parser.next().replaceAll("\\.", "")) * 0.001);
         position.set(Position.KEY_ODOMETER, parser.nextDouble() * 1000);
         position.set(Position.KEY_GPS, parser.nextInt());
         position.set(Position.PREFIX_ADC + 1, parser.nextDouble() * 0.001);
-        position.set(Position.PREFIX_ADC + 2, parser.nextDouble() * 0.001);
+
+        if ("AVL110".equals(model) || "AVL120".equals(model)) {
+            position.set(Position.PREFIX_ADC + 2, parser.nextDouble() * 0.001);
+        } else {
+            parser.next();
+        }
 
         Integer lac = parser.nextHexInt();
         Integer cid = parser.nextHexInt();
@@ -253,8 +277,8 @@ public class LaipacProtocolDecoder extends BaseProtocolDecoder {
 
             sendAcknowledge(status, event, checksum, channel, remoteAddress);
 
-            String devicePassword = Context.getIdentityManager()
-                .getDevicePassword(deviceSession.getDeviceId(), getProtocolName(), DEFAULT_DEVICE_PASSWORD);
+            String devicePassword = AttributeUtil.getDevicePassword(
+                    getCacheManager(), deviceSession.getDeviceId(), getProtocolName(), DEFAULT_DEVICE_PASSWORD);
             sendEventResponse(event, devicePassword, channel, remoteAddress);
         }
 
diff --git a/src/main/java/org/traccar/protocol/LeafSpyProtocol.java b/src/main/java/org/traccar/protocol/LeafSpyProtocol.java
index 05f63a2d7..9e167e7ba 100644
--- a/src/main/java/org/traccar/protocol/LeafSpyProtocol.java
+++ b/src/main/java/org/traccar/protocol/LeafSpyProtocol.java
@@ -22,13 +22,17 @@ import io.netty.handler.codec.http.HttpResponseEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class LeafSpyProtocol extends BaseProtocol {
 
-    public LeafSpyProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public LeafSpyProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HttpResponseEncoder());
                 pipeline.addLast(new HttpRequestDecoder());
                 pipeline.addLast(new HttpObjectAggregator(16384));
diff --git a/src/main/java/org/traccar/protocol/LeafSpyProtocolDecoder.java b/src/main/java/org/traccar/protocol/LeafSpyProtocolDecoder.java
index ad0c9bd32..6affb85c5 100644
--- a/src/main/java/org/traccar/protocol/LeafSpyProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/LeafSpyProtocolDecoder.java
@@ -22,7 +22,7 @@ import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.handler.codec.http.QueryStringDecoder;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.model.Position;
 
diff --git a/src/main/java/org/traccar/protocol/M2cProtocol.java b/src/main/java/org/traccar/protocol/M2cProtocol.java
index 9de8526c3..8abc30f60 100644
--- a/src/main/java/org/traccar/protocol/M2cProtocol.java
+++ b/src/main/java/org/traccar/protocol/M2cProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class M2cProtocol extends BaseProtocol {
 
-    public M2cProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public M2cProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(32 * 1024, ']'));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/M2cProtocolDecoder.java b/src/main/java/org/traccar/protocol/M2cProtocolDecoder.java
index 1460bb176..9415d0f07 100644
--- a/src/main/java/org/traccar/protocol/M2cProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/M2cProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/M2mProtocol.java b/src/main/java/org/traccar/protocol/M2mProtocol.java
index dda328a59..03a069d66 100644
--- a/src/main/java/org/traccar/protocol/M2mProtocol.java
+++ b/src/main/java/org/traccar/protocol/M2mProtocol.java
@@ -19,13 +19,17 @@ import io.netty.handler.codec.FixedLengthFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class M2mProtocol extends BaseProtocol {
 
-    public M2mProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public M2mProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new FixedLengthFrameDecoder(23));
                 pipeline.addLast(new M2mProtocolDecoder(M2mProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/M2mProtocolDecoder.java b/src/main/java/org/traccar/protocol/M2mProtocolDecoder.java
index 21e4a2fd0..7eca93a59 100644
--- a/src/main/java/org/traccar/protocol/M2mProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/M2mProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/MaestroProtocol.java b/src/main/java/org/traccar/protocol/MaestroProtocol.java
index 87453ce7d..29f0b8897 100644
--- a/src/main/java/org/traccar/protocol/MaestroProtocol.java
+++ b/src/main/java/org/traccar/protocol/MaestroProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class MaestroProtocol extends BaseProtocol {
 
-    public MaestroProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public MaestroProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new FixedLengthFrameDecoder(160));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/MaestroProtocolDecoder.java b/src/main/java/org/traccar/protocol/MaestroProtocolDecoder.java
index 37b097414..78308658e 100644
--- a/src/main/java/org/traccar/protocol/MaestroProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MaestroProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/ManPowerProtocol.java b/src/main/java/org/traccar/protocol/ManPowerProtocol.java
index 49d8b1e9f..ba2414ca7 100644
--- a/src/main/java/org/traccar/protocol/ManPowerProtocol.java
+++ b/src/main/java/org/traccar/protocol/ManPowerProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class ManPowerProtocol extends BaseProtocol {
 
-    public ManPowerProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public ManPowerProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, ';'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/ManPowerProtocolDecoder.java b/src/main/java/org/traccar/protocol/ManPowerProtocolDecoder.java
index 2c7b7eb40..8ac13b4d4 100644
--- a/src/main/java/org/traccar/protocol/ManPowerProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ManPowerProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/Mavlink2Protocol.java b/src/main/java/org/traccar/protocol/Mavlink2Protocol.java
index d779648e4..916fb7467 100644
--- a/src/main/java/org/traccar/protocol/Mavlink2Protocol.java
+++ b/src/main/java/org/traccar/protocol/Mavlink2Protocol.java
@@ -15,18 +15,21 @@
  */
 package org.traccar.protocol;
 
+import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 
-import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
+import jakarta.inject.Inject;
 
 public class Mavlink2Protocol extends BaseProtocol {
 
-    public Mavlink2Protocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public Mavlink2Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 1, 1, 10, 0));
                 pipeline.addLast(new Mavlink2ProtocolDecoder(Mavlink2Protocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/Mavlink2ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Mavlink2ProtocolDecoder.java
index 431258388..fac930ba8 100644
--- a/src/main/java/org/traccar/protocol/Mavlink2ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Mavlink2ProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/MegastekProtocol.java b/src/main/java/org/traccar/protocol/MegastekProtocol.java
index e9f5f9fde..9f8937f01 100644
--- a/src/main/java/org/traccar/protocol/MegastekProtocol.java
+++ b/src/main/java/org/traccar/protocol/MegastekProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class MegastekProtocol extends BaseProtocol {
 
-    public MegastekProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public MegastekProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new MegastekFrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/MegastekProtocolDecoder.java b/src/main/java/org/traccar/protocol/MegastekProtocolDecoder.java
index 7233280c2..06b6f0e76 100644
--- a/src/main/java/org/traccar/protocol/MegastekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MegastekProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/MeiligaoProtocol.java b/src/main/java/org/traccar/protocol/MeiligaoProtocol.java
index e8a66e49f..d86a00fb3 100644
--- a/src/main/java/org/traccar/protocol/MeiligaoProtocol.java
+++ b/src/main/java/org/traccar/protocol/MeiligaoProtocol.java
@@ -18,31 +18,36 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class MeiligaoProtocol extends BaseProtocol {
 
-    public MeiligaoProtocol() {
+    @Inject
+    public MeiligaoProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_POSITION_SINGLE,
                 Command.TYPE_POSITION_PERIODIC,
+                Command.TYPE_OUTPUT_CONTROL,
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_ENGINE_RESUME,
                 Command.TYPE_ALARM_GEOFENCE,
                 Command.TYPE_SET_TIMEZONE,
                 Command.TYPE_REQUEST_PHOTO,
                 Command.TYPE_REBOOT_DEVICE);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new MeiligaoFrameDecoder());
                 pipeline.addLast(new MeiligaoProtocolEncoder(MeiligaoProtocol.this));
                 pipeline.addLast(new MeiligaoProtocolDecoder(MeiligaoProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new MeiligaoProtocolEncoder(MeiligaoProtocol.this));
                 pipeline.addLast(new MeiligaoProtocolDecoder(MeiligaoProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/MeiligaoProtocolDecoder.java b/src/main/java/org/traccar/protocol/MeiligaoProtocolDecoder.java
index d38e5d1c3..1f8c4d2da 100644
--- a/src/main/java/org/traccar/protocol/MeiligaoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MeiligaoProtocolDecoder.java
@@ -19,8 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -40,7 +39,7 @@ import java.util.regex.Pattern;
 
 public class MeiligaoProtocolDecoder extends BaseProtocolDecoder {
 
-    private Map<Byte, ByteBuf> photos = new HashMap<>();
+    private final Map<Byte, ByteBuf> photos = new HashMap<>();
 
     public MeiligaoProtocolDecoder(Protocol protocol) {
         super(protocol);
@@ -283,7 +282,7 @@ public class MeiligaoProtocolDecoder extends BaseProtocolDecoder {
         position.set(Position.KEY_RSSI, parser.nextHexInt());
         position.set(Position.KEY_ODOMETER, parser.nextHexLong());
         position.set(Position.KEY_SATELLITES, parser.nextHexInt());
-        position.set("driverLicense", parser.next());
+        position.set(Position.KEY_CARD, parser.next());
         position.set(Position.KEY_ODOMETER, parser.nextLong());
         position.set(Position.KEY_DRIVER_UNIQUE_ID, parser.next());
 
@@ -469,10 +468,9 @@ public class MeiligaoProtocolDecoder extends BaseProtocolDecoder {
             } else if (command == MSG_POSITION_IMAGE) {
                 byte imageIndex = buf.readByte();
                 buf.readUnsignedByte(); // image upload type
-                String uniqueId = Context.getIdentityManager().getById(deviceSession.getDeviceId()).getUniqueId();
                 ByteBuf photo = photos.remove(imageIndex);
                 try {
-                    position.set(Position.KEY_IMAGE, Context.getMediaManager().writeFile(uniqueId, photo, "jpg"));
+                    position.set(Position.KEY_IMAGE, writeMediaFile(deviceSession.getUniqueId(), photo, "jpg"));
                 } finally {
                     photo.release();
                 }
diff --git a/src/main/java/org/traccar/protocol/MeiligaoProtocolEncoder.java b/src/main/java/org/traccar/protocol/MeiligaoProtocolEncoder.java
index e5b2cf4e7..5859d91ce 100644
--- a/src/main/java/org/traccar/protocol/MeiligaoProtocolEncoder.java
+++ b/src/main/java/org/traccar/protocol/MeiligaoProtocolEncoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,13 +18,16 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import org.traccar.BaseProtocolEncoder;
-import org.traccar.Context;
+import org.traccar.Protocol;
+import org.traccar.config.Keys;
 import org.traccar.helper.Checksum;
 import org.traccar.helper.DataConverter;
+import org.traccar.helper.model.AttributeUtil;
 import org.traccar.model.Command;
-import org.traccar.Protocol;
+import org.traccar.model.Device;
 
 import java.nio.charset.StandardCharsets;
+import java.util.Set;
 import java.util.TimeZone;
 
 public class MeiligaoProtocolEncoder extends BaseProtocolEncoder {
@@ -56,15 +59,36 @@ public class MeiligaoProtocolEncoder extends BaseProtocolEncoder {
         return buf;
     }
 
-    @Override
-    protected Object encodeCommand(Command command) {
+    private ByteBuf encodeOutputCommand(long deviceId, int index, int value) {
 
-        boolean alternative = Context.getIdentityManager().lookupAttributeBoolean(
-                command.getDeviceId(), getProtocolName() + ".alternative", false, false, true);
+        int outputCount;
+        int outputType;
 
-        int outputControlMessageType = alternative
-                ? MeiligaoProtocolDecoder.MSG_OUTPUT_CONTROL_1
-                : MeiligaoProtocolDecoder.MSG_OUTPUT_CONTROL_2;
+        String model = getCacheManager().getObject(Device.class, deviceId).getModel();
+
+        if (model != null && Set.of("TK510", "GT08", "TK208", "TK228", "MT05").contains(model)) {
+            outputCount = 5;
+            outputType = MeiligaoProtocolDecoder.MSG_OUTPUT_CONTROL_1;
+        } else {
+            outputCount = 1;
+            boolean alternative = AttributeUtil.lookup(
+                    getCacheManager(), Keys.PROTOCOL_ALTERNATIVE.withPrefix(getProtocolName()), deviceId);
+            outputType = alternative
+                    ? MeiligaoProtocolDecoder.MSG_OUTPUT_CONTROL_1
+                    : MeiligaoProtocolDecoder.MSG_OUTPUT_CONTROL_2;
+        }
+
+        ByteBuf content = Unpooled.buffer();
+
+        for (int i = 1; i <= outputCount; i++) {
+            content.writeByte(i == index ? value : 2);
+        }
+
+        return encodeContent(deviceId, outputType, content);
+    }
+
+    @Override
+    protected Object encodeCommand(Command command) {
 
         ByteBuf content = Unpooled.buffer();
 
@@ -74,12 +98,14 @@ public class MeiligaoProtocolEncoder extends BaseProtocolEncoder {
             case Command.TYPE_POSITION_PERIODIC:
                 content.writeShort(command.getInteger(Command.KEY_FREQUENCY) / 10);
                 return encodeContent(command.getDeviceId(), MeiligaoProtocolDecoder.MSG_TRACK_BY_INTERVAL, content);
+            case Command.TYPE_OUTPUT_CONTROL:
+                int index = command.getInteger(Command.KEY_INDEX) - 1;
+                int value = command.getInteger(Command.KEY_DATA);
+                return encodeOutputCommand(command.getDeviceId(), index, value);
             case Command.TYPE_ENGINE_STOP:
-                content.writeByte(0x01);
-                return encodeContent(command.getDeviceId(), outputControlMessageType, content);
+                return encodeOutputCommand(command.getDeviceId(), 1, 1);
             case Command.TYPE_ENGINE_RESUME:
-                content.writeByte(0x00);
-                return encodeContent(command.getDeviceId(), outputControlMessageType, content);
+                return encodeOutputCommand(command.getDeviceId(), 1, 0);
             case Command.TYPE_ALARM_GEOFENCE:
                 content.writeShort(command.getInteger(Command.KEY_RADIUS));
                 return encodeContent(command.getDeviceId(), MeiligaoProtocolDecoder.MSG_MOVEMENT_ALARM, content);
diff --git a/src/main/java/org/traccar/protocol/MeitrackProtocol.java b/src/main/java/org/traccar/protocol/MeitrackProtocol.java
index 7439ea611..4109b22c9 100644
--- a/src/main/java/org/traccar/protocol/MeitrackProtocol.java
+++ b/src/main/java/org/traccar/protocol/MeitrackProtocol.java
@@ -19,11 +19,15 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class MeitrackProtocol extends BaseProtocol {
 
-    public MeitrackProtocol() {
+    @Inject
+    public MeitrackProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_POSITION_SINGLE,
                 Command.TYPE_ENGINE_STOP,
@@ -32,18 +36,18 @@ public class MeitrackProtocol extends BaseProtocol {
                 Command.TYPE_ALARM_DISARM,
                 Command.TYPE_REQUEST_PHOTO,
                 Command.TYPE_SEND_SMS);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new MeitrackFrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new MeitrackProtocolEncoder(MeitrackProtocol.this));
                 pipeline.addLast(new MeitrackProtocolDecoder(MeitrackProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new MeitrackProtocolEncoder(MeitrackProtocol.this));
                 pipeline.addLast(new MeitrackProtocolDecoder(MeitrackProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/MeitrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/MeitrackProtocolDecoder.java
index a9cc1de3a..0f0d22021 100644
--- a/src/main/java/org/traccar/protocol/MeitrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MeitrackProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,8 +19,8 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.model.Device;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
@@ -204,18 +204,18 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
                 position.set(Position.PREFIX_ADC + i, parser.nextHexInt());
             }
 
-            String deviceModel = Context.getIdentityManager().getById(deviceSession.getDeviceId()).getModel();
-            if (deviceModel == null) {
-                deviceModel = "";
+            String model = getCacheManager().getObject(Device.class, deviceSession.getDeviceId()).getModel();
+            if (model == null) {
+                model = "";
             }
-            switch (deviceModel.toUpperCase()) {
+            switch (model.toUpperCase()) {
                 case "MVT340":
                 case "MVT380":
-                    position.set(Position.KEY_BATTERY, parser.nextHexInt(0) * 3.0 * 2.0 / 1024.0);
+                    position.set(Position.KEY_BATTERY, parser.nextHexInt() * 3.0 * 2.0 / 1024.0);
                     position.set(Position.KEY_POWER, parser.nextHexInt(0) * 3.0 * 16.0 / 1024.0);
                     break;
                 case "MT90":
-                    position.set(Position.KEY_BATTERY, parser.nextHexInt(0) * 3.3 * 2.0 / 4096.0);
+                    position.set(Position.KEY_BATTERY, parser.nextHexInt() * 3.3 * 2.0 / 4096.0);
                     position.set(Position.KEY_POWER, parser.nextHexInt(0));
                     break;
                 case "T1":
@@ -225,19 +225,18 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
                 case "MVT800":
                 case "TC68":
                 case "TC68S":
-                    position.set(Position.KEY_BATTERY, parser.nextHexInt(0) * 3.3 * 2.0 / 4096.0);
+                    position.set(Position.KEY_BATTERY, parser.nextHexInt() * 3.3 * 2.0 / 4096.0);
                     position.set(Position.KEY_POWER, parser.nextHexInt(0) * 3.3 * 16.0 / 4096.0);
                     break;
                 case "T311":
                 case "T322X":
                 case "T333":
                 case "T355":
-                    position.set(Position.KEY_BATTERY, parser.nextHexInt(0) / 100.0);
-                    position.set(Position.KEY_POWER, parser.nextHexInt(0) / 100.0);
-                    break;
+                case "T366":
+                case "T366G":
                 default:
-                    position.set(Position.KEY_BATTERY, parser.nextHexInt(0));
-                    position.set(Position.KEY_POWER, parser.nextHexInt(0));
+                    position.set(Position.KEY_BATTERY, parser.nextHexInt() / 100.0);
+                    position.set(Position.KEY_POWER, parser.nextHexInt(0) / 100.0);
                     break;
             }
 
@@ -368,13 +367,9 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
             StringBuilder command = new StringBuilder("@@");
             command.append(flag).append(27 + positions.size() / 10).append(",");
             command.append(imei).append(",CCC,").append(positions.size()).append("*");
-            int checksum = 0;
-            for (int i = 0; i < command.length(); i += 1) {
-                checksum += command.charAt(i);
-            }
-            command.append(String.format("%02x", checksum & 0xff).toUpperCase());
+            command.append(Checksum.sum(command.toString()));
             command.append("\r\n");
-            channel.writeAndFlush(new NetworkMessage(command.toString(), remoteAddress)); // delete processed data
+            channel.writeAndFlush(new NetworkMessage(command.toString(), remoteAddress));
         }
 
         return positions;
@@ -404,7 +399,8 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
 
             int paramCount = buf.readUnsignedByte();
             for (int j = 0; j < paramCount; j++) {
-                int id = buf.readUnsignedByte();
+                boolean extension = buf.getUnsignedByte(buf.readerIndex()) == 0xFE;
+                int id = extension ? buf.readUnsignedShort() : buf.readUnsignedByte();
                 switch (id) {
                     case 0x01:
                         position.set(Position.KEY_EVENT, buf.readUnsignedByte());
@@ -424,12 +420,21 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
                     case 0x15:
                         position.set(Position.KEY_INPUT, buf.readUnsignedByte());
                         break;
+                    case 0x47:
+                        int lockState = buf.readUnsignedByte();
+                        if (lockState > 0) {
+                            position.set(Position.KEY_LOCK, lockState == 2);
+                        }
+                        break;
                     case 0x97:
                         position.set(Position.KEY_THROTTLE, buf.readUnsignedByte());
                         break;
                     case 0x9D:
                         position.set(Position.KEY_FUEL_LEVEL, buf.readUnsignedByte());
                         break;
+                    case 0xFE69:
+                        position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte());
+                        break;
                     default:
                         buf.readUnsignedByte();
                         break;
@@ -438,7 +443,8 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
 
             paramCount = buf.readUnsignedByte();
             for (int j = 0; j < paramCount; j++) {
-                int id = buf.readUnsignedByte();
+                boolean extension = buf.getUnsignedByte(buf.readerIndex()) == 0xFE;
+                int id = extension ? buf.readUnsignedShort() : buf.readUnsignedByte();
                 switch (id) {
                     case 0x08:
                         position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShortLE()));
@@ -491,7 +497,8 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
 
             paramCount = buf.readUnsignedByte();
             for (int j = 0; j < paramCount; j++) {
-                int id = buf.readUnsignedByte();
+                boolean extension = buf.getUnsignedByte(buf.readerIndex()) == 0xFE;
+                int id = extension ? buf.readUnsignedShort() : buf.readUnsignedByte();
                 switch (id) {
                     case 0x02:
                         position.setLatitude(buf.readIntLE() * 0.000001);
@@ -509,6 +516,9 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
                     case 0x0D:
                         position.set("runtime", buf.readUnsignedIntLE());
                         break;
+                    case 0x25:
+                        position.set(Position.KEY_DRIVER_UNIQUE_ID, String.valueOf(buf.readUnsignedIntLE()));
+                        break;
                     case 0xA0:
                         position.set(Position.KEY_FUEL_USED, buf.readUnsignedIntLE() * 0.001);
                         break;
@@ -523,8 +533,41 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
 
             paramCount = buf.readUnsignedByte();
             for (int j = 0; j < paramCount; j++) {
-                buf.readUnsignedByte(); // id
-                buf.skipBytes(buf.readUnsignedByte()); // value
+                boolean extension = buf.getUnsignedByte(buf.readerIndex()) == 0xFE;
+                int id = extension ? buf.readUnsignedShort() : buf.readUnsignedByte();
+                int length = buf.readUnsignedByte();
+                switch (id) {
+                    case 0x2A:
+                    case 0x2B:
+                    case 0x2C:
+                    case 0x2D:
+                    case 0x2E:
+                    case 0x2F:
+                    case 0x30:
+                    case 0x31:
+                        buf.readUnsignedByte(); // label
+                        position.set(Position.PREFIX_TEMP + (id - 0x2A), buf.readShortLE() * 0.01);
+                        break;
+                    case 0xFE31:
+                        buf.readUnsignedByte(); // alarm protocol
+                        buf.readUnsignedByte(); // alarm type
+                        buf.skipBytes(length - 2);
+                        break;
+                    case 0xFEA8:
+                        for (int k = 1; k <= 3; k++) {
+                            if (buf.readUnsignedByte() > 0) {
+                                String key = k == 1 ? Position.KEY_BATTERY_LEVEL : "battery" + k + "Level";
+                                position.set(key, buf.readUnsignedByte());
+                            } else {
+                                buf.readUnsignedByte();
+                            }
+                        }
+                        buf.readUnsignedByte(); // battery alert
+                        break;
+                    default:
+                        buf.skipBytes(length);
+                        break;
+                }
             }
 
             positions.add(position);
@@ -533,13 +576,13 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
         return positions;
     }
 
-    private void requestPhotoPacket(Channel channel, SocketAddress socketAddress, String imei, String file, int index) {
+    private void requestPhotoPacket(Channel channel, SocketAddress remoteAddress, String imei, String file, int index) {
         if (channel != null) {
             String content = "D00," + file + "," + index;
             int length = 1 + imei.length() + 1 + content.length() + 5;
             String response = String.format("@@O%02d,%s,%s*", length, imei, content);
             response += Checksum.sum(response) + "\r\n";
-            channel.writeAndFlush(new NetworkMessage(response, socketAddress));
+            channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
         }
     }
 
@@ -555,6 +598,13 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
         String type = buf.toString(index + 1, 3, StandardCharsets.US_ASCII);
 
         switch (type) {
+            case "AAC":
+                if (channel != null) {
+                    String response = String.format("@@z27,%s,AAC,1*", imei);
+                    response += Checksum.sum(response) + "\r\n";
+                    channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
+                }
+                return null;
             case "D00":
                 if (photo == null) {
                     photo = Unpooled.buffer();
@@ -579,7 +629,7 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
 
                     getLastLocation(position, null);
 
-                    position.set(Position.KEY_IMAGE, Context.getMediaManager().writeFile(imei, photo, "jpg"));
+                    position.set(Position.KEY_IMAGE, writeMediaFile(imei, photo, "jpg"));
                     photo.release();
                     photo = null;
 
@@ -594,6 +644,13 @@ public class MeitrackProtocolDecoder extends BaseProtocolDecoder {
                 photo = Unpooled.buffer();
                 requestPhotoPacket(channel, remoteAddress, imei, "camera_picture.jpg", 0);
                 return null;
+            case "D82":
+                Position position = new Position(getProtocolName());
+                position.setDeviceId(getDeviceSession(channel, remoteAddress, imei).getDeviceId());
+                getLastLocation(position, null);
+                String result = buf.toString(index + 1, buf.writerIndex() - index - 4, StandardCharsets.US_ASCII);
+                position.set(Position.KEY_RESULT, result);
+                return position;
             case "CCC":
                 return decodeBinaryC(channel, remoteAddress, buf);
             case "CCE":
diff --git a/src/main/java/org/traccar/protocol/MeitrackProtocolEncoder.java b/src/main/java/org/traccar/protocol/MeitrackProtocolEncoder.java
index 354e81434..365dbb35a 100644
--- a/src/main/java/org/traccar/protocol/MeitrackProtocolEncoder.java
+++ b/src/main/java/org/traccar/protocol/MeitrackProtocolEncoder.java
@@ -15,11 +15,12 @@
  */
 package org.traccar.protocol;
 
-import org.traccar.Context;
+import org.traccar.Protocol;
 import org.traccar.StringProtocolEncoder;
+import org.traccar.config.Keys;
 import org.traccar.helper.Checksum;
+import org.traccar.helper.model.AttributeUtil;
 import org.traccar.model.Command;
-import org.traccar.Protocol;
 
 import java.util.Map;
 
@@ -42,8 +43,8 @@ public class MeitrackProtocolEncoder extends StringProtocolEncoder {
 
         Map<String, Object> attributes = command.getAttributes();
 
-        boolean alternative = Context.getIdentityManager().lookupAttributeBoolean(
-                command.getDeviceId(), getProtocolName() + ".alternative", false, false, true);
+        boolean alternative = AttributeUtil.lookup(
+                getCacheManager(), Keys.PROTOCOL_ALTERNATIVE.withPrefix(getProtocolName()), command.getDeviceId());
 
         switch (command.getType()) {
             case Command.TYPE_POSITION_SINGLE:
diff --git a/src/main/java/org/traccar/protocol/MictrackProtocol.java b/src/main/java/org/traccar/protocol/MictrackProtocol.java
index 9fd9666e4..08bbe0c82 100644
--- a/src/main/java/org/traccar/protocol/MictrackProtocol.java
+++ b/src/main/java/org/traccar/protocol/MictrackProtocol.java
@@ -20,21 +20,25 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class MictrackProtocol extends BaseProtocol {
 
-    public MictrackProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public MictrackProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new MictrackProtocolDecoder(MictrackProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new MictrackProtocolDecoder(MictrackProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java
index c72a742b9..84ba75e7c 100644
--- a/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/MilesmateProtocol.java b/src/main/java/org/traccar/protocol/MilesmateProtocol.java
index 822711603..607dfc5bf 100644
--- a/src/main/java/org/traccar/protocol/MilesmateProtocol.java
+++ b/src/main/java/org/traccar/protocol/MilesmateProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class MilesmateProtocol extends BaseProtocol {
 
-    public MilesmateProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public MilesmateProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/MilesmateProtocolDecoder.java b/src/main/java/org/traccar/protocol/MilesmateProtocolDecoder.java
index 901ceb8f7..21c629411 100644
--- a/src/main/java/org/traccar/protocol/MilesmateProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MilesmateProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/MiniFinderProtocol.java b/src/main/java/org/traccar/protocol/MiniFinderProtocol.java
index 0cc9598ed..1cb2a0007 100644
--- a/src/main/java/org/traccar/protocol/MiniFinderProtocol.java
+++ b/src/main/java/org/traccar/protocol/MiniFinderProtocol.java
@@ -21,11 +21,15 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class MiniFinderProtocol extends BaseProtocol {
 
-    public MiniFinderProtocol() {
+    @Inject
+    public MiniFinderProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_SET_TIMEZONE,
                 Command.TYPE_VOICE_MONITORING,
@@ -38,9 +42,9 @@ public class MiniFinderProtocol extends BaseProtocol {
                 Command.TYPE_MODE_DEEP_SLEEP,
                 Command.TYPE_SOS_NUMBER,
                 Command.TYPE_SET_INDICATOR);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, ";\0", ";"));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/MiniFinderProtocolDecoder.java b/src/main/java/org/traccar/protocol/MiniFinderProtocolDecoder.java
index d5be31cec..1fdb1ece0 100644
--- a/src/main/java/org/traccar/protocol/MiniFinderProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MiniFinderProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.Parser;
@@ -143,7 +143,7 @@ public class MiniFinderProtocolDecoder extends BaseProtocolDecoder {
         }
 
         DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
-        if (deviceSession == null || !sentence.matches("![35A-D],.*")) {
+        if (deviceSession == null || !sentence.matches("![345A-D],.*")) {
             return null;
         }
 
@@ -161,6 +161,20 @@ public class MiniFinderProtocolDecoder extends BaseProtocolDecoder {
 
             return position;
 
+        } else if (type.equals("4")) {
+
+            String[] values = sentence.split(",");
+
+            getLastLocation(position, null);
+
+            for (int i = 1; i <= 3; i++) {
+                if (!values[i + 1].isEmpty()) {
+                    position.set("phone" + i, values[i + 1]);
+                }
+            }
+
+            return position;
+
         } else if (type.equals("5")) {
 
             String[] values = sentence.split(",");
diff --git a/src/main/java/org/traccar/protocol/Minifinder2Protocol.java b/src/main/java/org/traccar/protocol/Minifinder2Protocol.java
index f8801db74..c12933b81 100644
--- a/src/main/java/org/traccar/protocol/Minifinder2Protocol.java
+++ b/src/main/java/org/traccar/protocol/Minifinder2Protocol.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2019 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2019 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,16 +19,24 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+import org.traccar.model.Command;
 
 import java.nio.ByteOrder;
 
+import jakarta.inject.Inject;
+
 public class Minifinder2Protocol extends BaseProtocol {
 
-    public Minifinder2Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Minifinder2Protocol(Config config) {
+        setSupportedDataCommands(
+                Command.TYPE_FIRMWARE_UPDATE);
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
-                pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.LITTLE_ENDIAN, 1200, 2, 2, 4, 0, true));
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
+                pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.LITTLE_ENDIAN, 2048, 2, 2, 4, 0, true));
+                pipeline.addLast(new Minifinder2ProtocolEncoder(Minifinder2Protocol.this));
                 pipeline.addLast(new Minifinder2ProtocolDecoder(Minifinder2Protocol.this));
             }
         });
diff --git a/src/main/java/org/traccar/protocol/Minifinder2ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Minifinder2ProtocolDecoder.java
index 641a45864..6289bd2eb 100644
--- a/src/main/java/org/traccar/protocol/Minifinder2ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Minifinder2ProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2019 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2019 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -48,9 +48,11 @@ public class Minifinder2ProtocolDecoder extends BaseProtocolDecoder {
     public static final int MSG_DATA = 0x01;
     public static final int MSG_CONFIGURATION = 0x02;
     public static final int MSG_SERVICES = 0x03;
+    public static final int MSG_SYSTEM_CONTROL = 0x04;
+    public static final int MSG_FIRMWARE = 0x7E;
     public static final int MSG_RESPONSE = 0x7F;
 
-    private String decodeAlarm(int code) {
+    private String decodeAlarm(long code) {
         if (BitUtil.check(code, 0)) {
             return Position.ALARM_LOW_BATTERY;
         }
@@ -146,10 +148,10 @@ public class Minifinder2ProtocolDecoder extends BaseProtocolDecoder {
         int type = buf.readUnsignedByte();
 
         if (BitUtil.check(flags, 4)) {
-            sendResponse(channel, remoteAddress, index, type, buf);
+            sendResponse(channel, remoteAddress, index, type, buf.slice());
         }
 
-        if (type == MSG_DATA) {
+        if (type == MSG_DATA || type == MSG_SERVICES) {
 
             List<Position> positions = new LinkedList<>();
             Set<Integer> keys = new HashSet<>();
@@ -177,11 +179,16 @@ public class Minifinder2ProtocolDecoder extends BaseProtocolDecoder {
                     case 0x01:
                         deviceSession = getDeviceSession(
                                 channel, remoteAddress, buf.readCharSequence(15, StandardCharsets.US_ASCII).toString());
-
-                        position.setDeviceId(deviceSession.getDeviceId());
+                        if (deviceSession == null) {
+                            return null;
+                        }
                         break;
                     case 0x02:
-                        position.set(Position.KEY_ALARM, decodeAlarm(buf.readIntLE()));
+                        long alarm = buf.readUnsignedIntLE();
+                        position.set(Position.KEY_ALARM, decodeAlarm(alarm));
+                        if (BitUtil.check(alarm, 31)) {
+                            position.set("bark", true);
+                        }
                         break;
                     case 0x14:
                         position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte());
@@ -194,7 +201,9 @@ public class Minifinder2ProtocolDecoder extends BaseProtocolDecoder {
                         position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShortLE()));
                         position.setCourse(buf.readUnsignedShortLE());
                         position.setAltitude(buf.readShortLE());
-                        position.setValid(buf.readUnsignedShortLE() > 0);
+                        int hdop = buf.readUnsignedShortLE();
+                        position.setValid(hdop > 0);
+                        position.set(Position.KEY_HDOP, hdop * 0.1);
                         position.set(Position.KEY_ODOMETER, buf.readUnsignedIntLE());
                         position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
                         break;
@@ -231,6 +240,14 @@ public class Minifinder2ProtocolDecoder extends BaseProtocolDecoder {
                     case 0x24:
                         position.setTime(new Date(buf.readUnsignedIntLE() * 1000));
                         long status = buf.readUnsignedIntLE();
+                        if (BitUtil.check(status, 4)) {
+                            position.set(Position.KEY_CHARGE, true);
+                        }
+                        if (BitUtil.check(status, 7)) {
+                            position.set(Position.KEY_ARCHIVE, true);
+                        }
+                        position.set(Position.KEY_MOTION, BitUtil.check(status, 9));
+                        position.set(Position.KEY_RSSI, BitUtil.between(status, 19, 24));
                         position.set(Position.KEY_BATTERY_LEVEL, BitUtil.from(status, 24));
                         position.set(Position.KEY_STATUS, status);
                         break;
@@ -260,8 +277,24 @@ public class Minifinder2ProtocolDecoder extends BaseProtocolDecoder {
                         hasLocation = true;
                         break;
                     case 0x30:
-                        buf.readUnsignedInt(); // timestamp
-                        position.set(Position.KEY_STEPS, buf.readUnsignedInt());
+                        buf.readUnsignedIntLE(); // timestamp
+                        position.set(Position.KEY_STEPS, buf.readUnsignedIntLE());
+                        break;
+                    case 0x31:
+                        int i = 1;
+                        while (buf.readerIndex() < endIndex) {
+                            position.set("activity" + i + "Time", buf.readUnsignedIntLE());
+                            position.set("activity" + i, buf.readUnsignedIntLE());
+                            i += 1;
+                        }
+                        break;
+                    case 0x37:
+                        buf.readUnsignedIntLE(); // timestamp
+                        long barking = buf.readUnsignedIntLE();
+                        if (BitUtil.check(barking, 31)) {
+                            position.set("barkStop", true);
+                        }
+                        position.set("barkCount", BitUtil.to(barking, 31));
                         break;
                     case 0x40:
                         buf.readUnsignedIntLE(); // timestamp
@@ -291,6 +324,23 @@ public class Minifinder2ProtocolDecoder extends BaseProtocolDecoder {
 
             return positions;
 
+        } else if (type == MSG_RESPONSE) {
+
+            DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+            if (deviceSession == null) {
+                return null;
+            }
+
+            Position position = new Position(getProtocolName());
+            position.setDeviceId(deviceSession.getDeviceId());
+
+            getLastLocation(position, null);
+
+            buf.readUnsignedByte(); // length
+            position.set(Position.KEY_RESULT, String.valueOf(buf.readUnsignedByte()));
+
+            return position;
+
         }
 
         return null;
diff --git a/src/main/java/org/traccar/protocol/Minifinder2ProtocolEncoder.java b/src/main/java/org/traccar/protocol/Minifinder2ProtocolEncoder.java
new file mode 100644
index 000000000..fab3c3a6d
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/Minifinder2ProtocolEncoder.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import org.traccar.BaseProtocolEncoder;
+import org.traccar.Protocol;
+import org.traccar.helper.Checksum;
+import org.traccar.model.Command;
+import org.traccar.model.Device;
+
+import java.nio.charset.StandardCharsets;
+
+public class Minifinder2ProtocolEncoder extends BaseProtocolEncoder {
+
+    public Minifinder2ProtocolEncoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    private ByteBuf encodeContent(ByteBuf content) {
+
+        ByteBuf buf = Unpooled.buffer();
+
+        buf.writeByte(0xAB); // header
+        buf.writeByte(0x00); // properties
+        buf.writeShortLE(content.readableBytes());
+        buf.writeShortLE(Checksum.crc16(Checksum.CRC16_XMODEM, content.nioBuffer()));
+        buf.writeShortLE(1); // index
+        buf.writeBytes(content);
+
+        return buf;
+    }
+
+    @Override
+    protected Object encodeCommand(Command command) {
+
+        Device device = getCacheManager().getObject(Device.class, command.getDeviceId());
+        if ("Nano".equalsIgnoreCase(device.getModel())) {
+            ByteBuf content = Unpooled.buffer();
+            if (command.getType().equals(Command.TYPE_FIRMWARE_UPDATE)) {
+                String url = command.getString(Command.KEY_DATA);
+                content.writeByte(Minifinder2ProtocolDecoder.MSG_SYSTEM_CONTROL);
+                content.writeByte(1 + url.length());
+                content.writeByte(0x30); // type
+                content.writeCharSequence(url, StandardCharsets.US_ASCII);
+                return encodeContent(content);
+            }
+        }
+
+        return null;
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/MobilogixProtocol.java b/src/main/java/org/traccar/protocol/MobilogixProtocol.java
index 28380a2af..36d6b5ed2 100644
--- a/src/main/java/org/traccar/protocol/MobilogixProtocol.java
+++ b/src/main/java/org/traccar/protocol/MobilogixProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class MobilogixProtocol extends BaseProtocol {
 
-    public MobilogixProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public MobilogixProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, ']'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/MobilogixProtocolDecoder.java b/src/main/java/org/traccar/protocol/MobilogixProtocolDecoder.java
index 86c89e336..d7600ecbb 100644
--- a/src/main/java/org/traccar/protocol/MobilogixProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MobilogixProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/MoovboxProtocol.java b/src/main/java/org/traccar/protocol/MoovboxProtocol.java
index 7b554266f..af853fe67 100644
--- a/src/main/java/org/traccar/protocol/MoovboxProtocol.java
+++ b/src/main/java/org/traccar/protocol/MoovboxProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.http.HttpResponseEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class MoovboxProtocol extends BaseProtocol {
 
-    public MoovboxProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public MoovboxProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HttpResponseEncoder());
                 pipeline.addLast(new HttpRequestDecoder());
                 pipeline.addLast(new HttpObjectAggregator(65535));
diff --git a/src/main/java/org/traccar/protocol/MoovboxProtocolDecoder.java b/src/main/java/org/traccar/protocol/MoovboxProtocolDecoder.java
index 3116d073c..8e6679b05 100644
--- a/src/main/java/org/traccar/protocol/MoovboxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MoovboxProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.model.Position;
 import org.w3c.dom.Document;
diff --git a/src/main/java/org/traccar/protocol/MotorProtocol.java b/src/main/java/org/traccar/protocol/MotorProtocol.java
index 680687e15..f17886577 100644
--- a/src/main/java/org/traccar/protocol/MotorProtocol.java
+++ b/src/main/java/org/traccar/protocol/MotorProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class MotorProtocol extends BaseProtocol {
 
-    public MotorProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public MotorProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new MotorProtocolDecoder(MotorProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/MotorProtocolDecoder.java b/src/main/java/org/traccar/protocol/MotorProtocolDecoder.java
index 8ce4fe8b1..9bca4d9bc 100644
--- a/src/main/java/org/traccar/protocol/MotorProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MotorProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/Mta6Protocol.java b/src/main/java/org/traccar/protocol/Mta6Protocol.java
index 14a66ce5c..c1c6eb829 100644
--- a/src/main/java/org/traccar/protocol/Mta6Protocol.java
+++ b/src/main/java/org/traccar/protocol/Mta6Protocol.java
@@ -19,22 +19,25 @@ import io.netty.handler.codec.http.HttpObjectAggregator;
 import io.netty.handler.codec.http.HttpRequestDecoder;
 import io.netty.handler.codec.http.HttpResponseEncoder;
 import org.traccar.BaseProtocol;
-import org.traccar.Context;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 
+import jakarta.inject.Inject;
+
 public class Mta6Protocol extends BaseProtocol {
 
-    public Mta6Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Mta6Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HttpResponseEncoder());
                 pipeline.addLast(new HttpRequestDecoder());
                 pipeline.addLast(new HttpObjectAggregator(65535));
                 pipeline.addLast(new Mta6ProtocolDecoder(
-                        Mta6Protocol.this, !Context.getConfig().getBoolean(Keys.PROTOCOL_CAN.withPrefix(getName()))));
+                        Mta6Protocol.this, !config.getBoolean(Keys.PROTOCOL_CAN.withPrefix(getName()))));
             }
         });
     }
diff --git a/src/main/java/org/traccar/protocol/Mta6ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Mta6ProtocolDecoder.java
index 88419b871..896c7a2d2 100644
--- a/src/main/java/org/traccar/protocol/Mta6ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Mta6ProtocolDecoder.java
@@ -26,7 +26,7 @@ import io.netty.handler.codec.http.HttpVersion;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/MtxProtocol.java b/src/main/java/org/traccar/protocol/MtxProtocol.java
index 44372ce83..12d324019 100644
--- a/src/main/java/org/traccar/protocol/MtxProtocol.java
+++ b/src/main/java/org/traccar/protocol/MtxProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class MtxProtocol extends BaseProtocol {
 
-    public MtxProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public MtxProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/MtxProtocolDecoder.java b/src/main/java/org/traccar/protocol/MtxProtocolDecoder.java
index d1207bedf..e94d12b36 100644
--- a/src/main/java/org/traccar/protocol/MtxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MtxProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/MxtProtocol.java b/src/main/java/org/traccar/protocol/MxtProtocol.java
index dbe43fe45..2f0cc1658 100644
--- a/src/main/java/org/traccar/protocol/MxtProtocol.java
+++ b/src/main/java/org/traccar/protocol/MxtProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class MxtProtocol extends BaseProtocol {
 
-    public MxtProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public MxtProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                     pipeline.addLast(new MxtFrameDecoder());
                     pipeline.addLast(new MxtProtocolDecoder(MxtProtocol.this));
                 }
diff --git a/src/main/java/org/traccar/protocol/MxtProtocolDecoder.java b/src/main/java/org/traccar/protocol/MxtProtocolDecoder.java
index 379b610e1..b3e2295e8 100644
--- a/src/main/java/org/traccar/protocol/MxtProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MxtProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/NavigilProtocol.java b/src/main/java/org/traccar/protocol/NavigilProtocol.java
index 2c946c39f..a309235c5 100644
--- a/src/main/java/org/traccar/protocol/NavigilProtocol.java
+++ b/src/main/java/org/traccar/protocol/NavigilProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class NavigilProtocol extends BaseProtocol {
 
-    public NavigilProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public NavigilProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new NavigilFrameDecoder());
                 pipeline.addLast(new NavigilProtocolDecoder(NavigilProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/NavigilProtocolDecoder.java b/src/main/java/org/traccar/protocol/NavigilProtocolDecoder.java
index db5521201..6dadbc559 100644
--- a/src/main/java/org/traccar/protocol/NavigilProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NavigilProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/NavisProtocol.java b/src/main/java/org/traccar/protocol/NavisProtocol.java
index d5af6838d..96b5b0de0 100644
--- a/src/main/java/org/traccar/protocol/NavisProtocol.java
+++ b/src/main/java/org/traccar/protocol/NavisProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class NavisProtocol extends BaseProtocol {
 
-    public NavisProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public NavisProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new NavisFrameDecoder());
                 pipeline.addLast(new NavisProtocolDecoder(NavisProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/NavisProtocolDecoder.java b/src/main/java/org/traccar/protocol/NavisProtocolDecoder.java
index 7ba474ae0..77158b315 100644
--- a/src/main/java/org/traccar/protocol/NavisProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NavisProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,12 +19,11 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.Checksum;
-import org.traccar.helper.Checksum.Algorithm;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
@@ -591,10 +590,8 @@ public class NavisProtocolDecoder extends BaseProtocolDecoder {
 
     private void sendFlexReply(Channel channel, ByteBuf data) {
         if (channel != null) {
-            ByteBuf cs = Unpooled.buffer(1);
-            cs.writeByte(Checksum.crc8(new Algorithm(8, 0x31, 0xFF, false, false, 0x00), data.nioBuffer()));
-
-            channel.writeAndFlush(new NetworkMessage(Unpooled.wrappedBuffer(data, cs), channel.remoteAddress()));
+            data.writeByte(Checksum.crc8(Checksum.CRC8_EGTS, data.nioBuffer()));
+            channel.writeAndFlush(new NetworkMessage(data, channel.remoteAddress()));
         }
     }
 
diff --git a/src/main/java/org/traccar/protocol/NavisetProtocol.java b/src/main/java/org/traccar/protocol/NavisetProtocol.java
index 78755ea4d..6df0b0436 100644
--- a/src/main/java/org/traccar/protocol/NavisetProtocol.java
+++ b/src/main/java/org/traccar/protocol/NavisetProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class NavisetProtocol extends BaseProtocol {
 
-    public NavisetProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public NavisetProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new NavisetFrameDecoder());
                 pipeline.addLast(new NavisetProtocolDecoder(NavisetProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/NavisetProtocolDecoder.java b/src/main/java/org/traccar/protocol/NavisetProtocolDecoder.java
index 10d71d76c..47d10b310 100644
--- a/src/main/java/org/traccar/protocol/NavisetProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NavisetProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/NavtelecomProtocol.java b/src/main/java/org/traccar/protocol/NavtelecomProtocol.java
index 29ce8c41e..de5f93df1 100644
--- a/src/main/java/org/traccar/protocol/NavtelecomProtocol.java
+++ b/src/main/java/org/traccar/protocol/NavtelecomProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class NavtelecomProtocol extends BaseProtocol {
 
-    public NavtelecomProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public NavtelecomProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new NavtelecomFrameDecoder());
                 pipeline.addLast(new NavtelecomProtocolDecoder(NavtelecomProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/NavtelecomProtocolDecoder.java b/src/main/java/org/traccar/protocol/NavtelecomProtocolDecoder.java
index ecaa6cbf4..87cccbeaa 100644
--- a/src/main/java/org/traccar/protocol/NavtelecomProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NavtelecomProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2021 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -196,7 +196,7 @@ public class NavtelecomProtocolDecoder extends BaseProtocolDecoder {
                     for (int j = 0; j < bits.length(); j++) {
                         if (bits.get(j)) {
 
-                            int value = 0;
+                            int value;
 
                             switch (j + 1) {
                                 case 1:
@@ -278,11 +278,11 @@ public class NavtelecomProtocolDecoder extends BaseProtocolDecoder {
                                 case 42:
                                 case 43:
                                     value = buf.readUnsignedShortLE();
-                                    position.set("rs485Fuel" + (j + 2 - 38), (value < 65500) ? value : null);
+                                    position.set("fuel" + (j + 2 - 38), (value < 65500) ? value : null);
                                     break;
                                 case 44:
                                     value = buf.readUnsignedShortLE();
-                                    position.set("rs232Fuel", (value < 65500) ? value : null);
+                                    position.set(Position.KEY_FUEL_LEVEL, (value < 65500) ? value : null);
                                     break;
                                 case 45:
                                 case 46:
@@ -293,7 +293,17 @@ public class NavtelecomProtocolDecoder extends BaseProtocolDecoder {
                                 case 51:
                                 case 52:
                                     value = buf.readByte();
-                                    position.set(Position.PREFIX_TEMP + (j + 2 - 45), (value != 0x80) ? value : null);
+                                    position.set(
+                                            Position.PREFIX_TEMP + (j + 2 - 45),
+                                            (value != (byte) 0x80) ? value : null);
+                                    break;
+                                case 78:
+                                case 79:
+                                case 80:
+                                case 81:
+                                case 82:
+                                case 83:
+                                    position.set("fuelTemp" + (j + 2 - 78), (int) buf.readByte());
                                     break;
                                 case 53:
                                     value = buf.readUnsignedShortLE();
diff --git a/src/main/java/org/traccar/protocol/NdtpV6Protocol.java b/src/main/java/org/traccar/protocol/NdtpV6Protocol.java
new file mode 100644
index 000000000..9493132f5
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/NdtpV6Protocol.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.handler.codec.string.StringEncoder;
+import org.traccar.BaseProtocol;
+import org.traccar.PipelineBuilder;
+import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
+
+public class NdtpV6Protocol extends BaseProtocol {
+
+    @Inject
+    public NdtpV6Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
+            @Override
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
+                pipeline.addLast(new StringEncoder());
+                pipeline.addLast(new NdtpV6ProtocolDecoder(NdtpV6Protocol.this));
+            }
+        });
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/NdtpV6ProtocolDecoder.java b/src/main/java/org/traccar/protocol/NdtpV6ProtocolDecoder.java
new file mode 100644
index 000000000..35cb0bae8
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/NdtpV6ProtocolDecoder.java
@@ -0,0 +1,203 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import io.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.NetworkMessage;
+import org.traccar.Protocol;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.Checksum;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+import org.traccar.session.DeviceSession;
+
+import java.net.SocketAddress;
+import java.util.Date;
+
+public class NdtpV6ProtocolDecoder extends BaseProtocolDecoder {
+
+    public NdtpV6ProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    private static final byte[] SIGNATURE = {0x7E, 0x7E};
+
+    private static final int NPL_FLAG_CRC = 2;
+    private static final int NPH_RESULT_OK = 0x00000000;
+    private static final int NPL_TYPE_NPH = 2;
+    private static final int NPL_ADDRESS_SERVER = 0;
+
+    private static final int NPH_RESULT = 0;
+
+    private static final int NPH_SRV_GENERIC_CONTROLS = 0;
+    private static final int NPH_SRV_NAVDATA = 1;
+
+    private static final int NPH_SGC_RESULT = NPH_RESULT;
+    private static final int NPH_SGC_CONN_REQUEST = 100;
+
+    private static final int NPH_SND_RESULT = NPH_RESULT;
+
+    private void sendResponse(
+            Channel channel, int serviceId, long requestId) {
+
+        ByteBuf content = Unpooled.buffer();
+        content.writeShortLE(serviceId);
+        content.writeIntLE(NPH_SND_RESULT);
+        content.writeIntLE((int) requestId);
+        content.writeIntLE(NPH_RESULT_OK);
+
+        ByteBuf response = Unpooled.buffer();
+        response.writeBytes(SIGNATURE);
+        response.writeShortLE(content.readableBytes());
+        response.writeShortLE(NPL_FLAG_CRC); // flags
+        response.writeShort(Checksum.crc16(Checksum.CRC16_MODBUS, content.nioBuffer()));
+        response.writeByte(NPL_TYPE_NPH); // type
+        response.writeIntLE(NPL_ADDRESS_SERVER); // peer address
+        response.writeShortLE(0); // request id
+        response.writeBytes(content);
+        content.release();
+
+        channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress()));
+    }
+
+    private static final short MAIN_NAV_DATA = 0;
+    private static final short ADDITIONAL_NAV_DATA = 2;
+
+    private void decodeData(ByteBuf buf, Position position) {
+
+        short itemType;
+        short itemIndex;
+
+        itemType = buf.readUnsignedByte();
+        itemIndex = buf.readUnsignedByte();
+        if (itemType == MAIN_NAV_DATA && (itemIndex == 0 || itemIndex == 1)) {
+
+            position.setTime(new Date(buf.readUnsignedIntLE() * 1000));
+            position.setLongitude(buf.readIntLE() / 10000000.0);
+            position.setLatitude(buf.readIntLE() / 10000000.0);
+
+            short flags = buf.readUnsignedByte();
+            position.setValid(BitUtil.check(flags, 7));
+            if (BitUtil.check(flags, 1)) {
+                position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
+            }
+
+            position.set(Position.KEY_BATTERY, buf.readUnsignedByte() * 20);
+            position.set(Position.KEY_OBD_SPEED, buf.readUnsignedShortLE());
+            position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShortLE()));
+            position.setCourse(buf.readUnsignedShortLE());
+
+            position.set(Position.KEY_ODOMETER, buf.readUnsignedShortLE());
+            position.setAltitude(buf.readShortLE());
+            position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+            position.set(Position.KEY_PDOP, buf.readUnsignedByte());
+        }
+
+        itemType = buf.readUnsignedByte();
+        itemIndex = buf.readUnsignedByte();
+        if (itemType == ADDITIONAL_NAV_DATA && itemIndex == 0) {
+
+            position.set(Position.KEY_BATTERY_LEVEL, Math.max((buf.readUnsignedShortLE() - 3600) / 6, 100));
+            position.set(Position.PREFIX_ADC + 2, buf.readUnsignedShortLE());
+            position.set(Position.PREFIX_ADC + 3, buf.readUnsignedShortLE());
+            position.set(Position.PREFIX_ADC + 4, buf.readUnsignedShortLE());
+
+            buf.readUnsignedByte(); // inputs
+            buf.readUnsignedByte(); // outputs
+            buf.readUnsignedShortLE(); // in1 count
+            buf.readUnsignedShortLE(); // in2 count
+            buf.readUnsignedShortLE(); // in3 count
+            buf.readUnsignedShortLE(); // in4 count
+            buf.readUnsignedIntLE(); // track length
+
+            position.set(Position.KEY_ANTENNA, buf.readUnsignedByte());
+            position.set(Position.KEY_GPS, buf.readUnsignedByte());
+            position.set(Position.KEY_ACCELERATION, buf.readUnsignedByte());
+            position.set(Position.KEY_POWER, buf.readUnsignedByte() * 200);
+        }
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        ByteBuf buf = (ByteBuf) msg;
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+
+        buf.skipBytes(2); // signature
+        buf.readUnsignedShortLE(); // length
+        buf.readUnsignedShortLE(); // connection flags
+        buf.readUnsignedShortLE(); // checksum
+        buf.readUnsignedByte(); // type
+        buf.readUnsignedIntLE(); // address
+        buf.readUnsignedShortLE(); // identification
+
+        int serviceId = buf.readUnsignedShortLE();
+        int serviceType = buf.readUnsignedShortLE();
+        buf.readUnsignedShortLE(); // request flags
+        long requestId = buf.readUnsignedIntLE();
+
+        if (deviceSession == null && serviceId == NPH_SRV_GENERIC_CONTROLS && serviceType == NPH_SGC_CONN_REQUEST) {
+
+            buf.readUnsignedShortLE(); // version major
+            buf.readUnsignedShortLE(); // version minor
+            buf.readUnsignedShortLE(); // connection flags
+
+            int deviceId = buf.readUnsignedShortLE();
+            Position position = new Position(getProtocolName());
+            deviceSession = getDeviceSession(channel, remoteAddress, String.valueOf(deviceId));
+            position.setDeviceId(deviceSession.getDeviceId());
+
+            if (channel != null) {
+                sendResponse(channel, serviceId, requestId);
+            }
+
+            position.set(Position.KEY_RESULT, String.valueOf(NPH_SGC_RESULT));
+            position.setTime(new Date());
+            getLastLocation(position, new Date());
+            position.setValid(false);
+
+            return position;
+
+        }
+
+        if (serviceId == NPH_SRV_NAVDATA) {
+
+            deviceSession = getDeviceSession(channel, remoteAddress);
+            if (deviceSession == null) {
+                return null;
+            }
+
+            Position position = new Position(getProtocolName());
+            position.setDeviceId(deviceSession.getDeviceId());
+
+            if (channel != null) {
+                sendResponse(channel, serviceId, requestId);
+            }
+
+            decodeData(buf, position);
+
+            return position;
+        }
+
+        return null;
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/NdtpV6ProtocolEncoder.java b/src/main/java/org/traccar/protocol/NdtpV6ProtocolEncoder.java
new file mode 100644
index 000000000..7aac8658a
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/NdtpV6ProtocolEncoder.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import org.traccar.BaseProtocolEncoder;
+import org.traccar.Protocol;
+import org.traccar.model.Command;
+
+public class NdtpV6ProtocolEncoder extends BaseProtocolEncoder {
+
+    public NdtpV6ProtocolEncoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    @Override
+    protected Object encodeCommand(Command command) {
+        switch (command.getType()) {
+            case Command.TYPE_IDENTIFICATION:
+                return "BB+IDNT";
+            case Command.TYPE_REBOOT_DEVICE:
+                return "BB+RESET";
+            case Command.TYPE_POSITION_SINGLE:
+                return "BB+RRCD";
+            default:
+                return null;
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/NeosProtocol.java b/src/main/java/org/traccar/protocol/NeosProtocol.java
index e545a9969..16a6ba5a0 100644
--- a/src/main/java/org/traccar/protocol/NeosProtocol.java
+++ b/src/main/java/org/traccar/protocol/NeosProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class NeosProtocol extends BaseProtocol {
 
-    public NeosProtocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public NeosProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new NeosProtocolDecoder(NeosProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/NeosProtocolDecoder.java b/src/main/java/org/traccar/protocol/NeosProtocolDecoder.java
index 6b5596dba..18ebc49da 100644
--- a/src/main/java/org/traccar/protocol/NeosProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NeosProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/NetProtocol.java b/src/main/java/org/traccar/protocol/NetProtocol.java
index c114d19fc..e011660da 100644
--- a/src/main/java/org/traccar/protocol/NetProtocol.java
+++ b/src/main/java/org/traccar/protocol/NetProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class NetProtocol extends BaseProtocol {
 
-    public NetProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public NetProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '!'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/NetProtocolDecoder.java b/src/main/java/org/traccar/protocol/NetProtocolDecoder.java
index c71a792a2..ebffb06f1 100644
--- a/src/main/java/org/traccar/protocol/NetProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NetProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/NiotProtocol.java b/src/main/java/org/traccar/protocol/NiotProtocol.java
index b57b18a3a..7eacd5ff3 100644
--- a/src/main/java/org/traccar/protocol/NiotProtocol.java
+++ b/src/main/java/org/traccar/protocol/NiotProtocol.java
@@ -19,13 +19,17 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class NiotProtocol extends BaseProtocol {
 
-    public NiotProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public NiotProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 3, 2));
                 pipeline.addLast(new NiotProtocolDecoder(NiotProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/NiotProtocolDecoder.java b/src/main/java/org/traccar/protocol/NiotProtocolDecoder.java
index 47c6e2ffd..35614ccca 100644
--- a/src/main/java/org/traccar/protocol/NiotProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NiotProtocolDecoder.java
@@ -20,7 +20,8 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.helper.BufferUtil;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
@@ -57,12 +58,6 @@ public class NiotProtocolDecoder extends BaseProtocolDecoder {
         }
     }
 
-    private double readCoordinate(ByteBuf buf) {
-        long value = buf.readUnsignedInt();
-        double result = BitUtil.to(value, 31) / 1800000.0;
-        return BitUtil.check(value, 31) ? -result : result;
-    }
-
     @Override
     protected Object decode(
             Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
@@ -96,8 +91,8 @@ public class NiotProtocolDecoder extends BaseProtocolDecoder {
                     .setSecond(BcdUtil.readInteger(buf, 2));
             position.setTime(dateBuilder.getDate());
 
-            position.setLatitude(readCoordinate(buf));
-            position.setLongitude(readCoordinate(buf));
+            position.setLatitude(BufferUtil.readSignedMagnitudeInt(buf) / 1800000.0);
+            position.setLongitude(BufferUtil.readSignedMagnitudeInt(buf) / 1800000.0);
             BcdUtil.readInteger(buf, 4); // reserved
             position.setCourse(BcdUtil.readInteger(buf, 4));
 
diff --git a/src/main/java/org/traccar/protocol/NoranProtocol.java b/src/main/java/org/traccar/protocol/NoranProtocol.java
index 3df364c30..d03e52be5 100644
--- a/src/main/java/org/traccar/protocol/NoranProtocol.java
+++ b/src/main/java/org/traccar/protocol/NoranProtocol.java
@@ -18,20 +18,24 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class NoranProtocol extends BaseProtocol {
 
-    public NoranProtocol() {
+    @Inject
+    public NoranProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_POSITION_SINGLE,
                 Command.TYPE_POSITION_PERIODIC,
                 Command.TYPE_POSITION_STOP,
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_ENGINE_RESUME);
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new NoranProtocolEncoder(NoranProtocol.this));
                 pipeline.addLast(new NoranProtocolDecoder(NoranProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/NoranProtocolDecoder.java b/src/main/java/org/traccar/protocol/NoranProtocolDecoder.java
index 53dae7fd6..53b58f9b6 100644
--- a/src/main/java/org/traccar/protocol/NoranProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NoranProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/NvsProtocol.java b/src/main/java/org/traccar/protocol/NvsProtocol.java
index d319b22f3..8a4ece30d 100644
--- a/src/main/java/org/traccar/protocol/NvsProtocol.java
+++ b/src/main/java/org/traccar/protocol/NvsProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class NvsProtocol extends BaseProtocol {
 
-    public NvsProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public NvsProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new NvsFrameDecoder());
                 pipeline.addLast(new NvsProtocolDecoder(NvsProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/NvsProtocolDecoder.java b/src/main/java/org/traccar/protocol/NvsProtocolDecoder.java
index 5d1159f7d..f826c4121 100644
--- a/src/main/java/org/traccar/protocol/NvsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NvsProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/NyitechProtocol.java b/src/main/java/org/traccar/protocol/NyitechProtocol.java
index 58974be5c..225b1bd5a 100644
--- a/src/main/java/org/traccar/protocol/NyitechProtocol.java
+++ b/src/main/java/org/traccar/protocol/NyitechProtocol.java
@@ -19,15 +19,19 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 
 import java.nio.ByteOrder;
 
+import jakarta.inject.Inject;
+
 public class NyitechProtocol extends BaseProtocol {
 
-    public NyitechProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public NyitechProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.LITTLE_ENDIAN, 1024, 2, 2, -4, 0, true));
                 pipeline.addLast(new NyitechProtocolDecoder(NyitechProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/NyitechProtocolDecoder.java b/src/main/java/org/traccar/protocol/NyitechProtocolDecoder.java
index 62b41a2ea..49bc5b824 100644
--- a/src/main/java/org/traccar/protocol/NyitechProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NyitechProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/ObdDongleProtocol.java b/src/main/java/org/traccar/protocol/ObdDongleProtocol.java
index 10a55759b..9fcc35d0d 100644
--- a/src/main/java/org/traccar/protocol/ObdDongleProtocol.java
+++ b/src/main/java/org/traccar/protocol/ObdDongleProtocol.java
@@ -19,13 +19,17 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class ObdDongleProtocol extends BaseProtocol {
 
-    public ObdDongleProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public ObdDongleProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1099, 20, 2, 3, 0));
                 pipeline.addLast(new ObdDongleProtocolDecoder(ObdDongleProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/ObdDongleProtocolDecoder.java b/src/main/java/org/traccar/protocol/ObdDongleProtocolDecoder.java
index 1c9771ce9..bf0ba6f82 100644
--- a/src/main/java/org/traccar/protocol/ObdDongleProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ObdDongleProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/OigoProtocol.java b/src/main/java/org/traccar/protocol/OigoProtocol.java
index 5056f68aa..3483f8270 100644
--- a/src/main/java/org/traccar/protocol/OigoProtocol.java
+++ b/src/main/java/org/traccar/protocol/OigoProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class OigoProtocol extends BaseProtocol {
 
-    public OigoProtocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public OigoProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new OigoProtocolDecoder(OigoProtocol.this));
             }
         });
diff --git a/src/main/java/org/traccar/protocol/OigoProtocolDecoder.java b/src/main/java/org/traccar/protocol/OigoProtocolDecoder.java
index b9cc71e8c..b0c7c3bc6 100644
--- a/src/main/java/org/traccar/protocol/OigoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OigoProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/OkoProtocol.java b/src/main/java/org/traccar/protocol/OkoProtocol.java
index 9571ccc48..6ca6c0e93 100644
--- a/src/main/java/org/traccar/protocol/OkoProtocol.java
+++ b/src/main/java/org/traccar/protocol/OkoProtocol.java
@@ -20,13 +20,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class OkoProtocol extends BaseProtocol {
 
-    public OkoProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public OkoProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '}'));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new OkoProtocolDecoder(OkoProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/OkoProtocolDecoder.java b/src/main/java/org/traccar/protocol/OkoProtocolDecoder.java
index fa35ab455..3bb62acb9 100644
--- a/src/main/java/org/traccar/protocol/OkoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OkoProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/OmnicommProtocol.java b/src/main/java/org/traccar/protocol/OmnicommProtocol.java
index 96660cb59..b59b84132 100644
--- a/src/main/java/org/traccar/protocol/OmnicommProtocol.java
+++ b/src/main/java/org/traccar/protocol/OmnicommProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class OmnicommProtocol extends BaseProtocol {
 
-    public OmnicommProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public OmnicommProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new OmnicommFrameDecoder());
                 pipeline.addLast(new OmnicommProtocolDecoder(OmnicommProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/OmnicommProtocolDecoder.java b/src/main/java/org/traccar/protocol/OmnicommProtocolDecoder.java
index f90d1f2b3..9d747032b 100644
--- a/src/main/java/org/traccar/protocol/OmnicommProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OmnicommProtocolDecoder.java
@@ -21,7 +21,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/OpenGtsProtocol.java b/src/main/java/org/traccar/protocol/OpenGtsProtocol.java
index 5ef3260c6..24d6de706 100644
--- a/src/main/java/org/traccar/protocol/OpenGtsProtocol.java
+++ b/src/main/java/org/traccar/protocol/OpenGtsProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.http.HttpResponseEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class OpenGtsProtocol extends BaseProtocol {
 
-    public OpenGtsProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public OpenGtsProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HttpResponseEncoder());
                 pipeline.addLast(new HttpRequestDecoder());
                 pipeline.addLast(new HttpObjectAggregator(16384));
diff --git a/src/main/java/org/traccar/protocol/OpenGtsProtocolDecoder.java b/src/main/java/org/traccar/protocol/OpenGtsProtocolDecoder.java
index b76cbfa85..255a81ae6 100644
--- a/src/main/java/org/traccar/protocol/OpenGtsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OpenGtsProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.handler.codec.http.QueryStringDecoder;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/OrbcommProtocol.java b/src/main/java/org/traccar/protocol/OrbcommProtocol.java
index bdfce3b1e..06b00619c 100644
--- a/src/main/java/org/traccar/protocol/OrbcommProtocol.java
+++ b/src/main/java/org/traccar/protocol/OrbcommProtocol.java
@@ -21,18 +21,22 @@ import io.netty.handler.codec.http.HttpResponseDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerClient;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class OrbcommProtocol extends BaseProtocol {
 
-    public OrbcommProtocol() {
-        addClient(new TrackerClient(getName()) {
+    @Inject
+    public OrbcommProtocol(Config config) {
+        addClient(new TrackerClient(config, getName()) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HttpRequestEncoder());
                 pipeline.addLast(new HttpResponseDecoder());
                 pipeline.addLast(new HttpObjectAggregator(65535));
                 pipeline.addLast(new OrbcommProtocolDecoder(OrbcommProtocol.this));
-                pipeline.addLast(new OrbcommProtocolPoller(OrbcommProtocol.this));
+                pipeline.addLast(new OrbcommProtocolPoller(OrbcommProtocol.this, config));
             }
         });
     }
diff --git a/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java b/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java
index 7277b1e5f..7ed13d647 100644
--- a/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java
@@ -19,15 +19,15 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpResponse;
 import org.traccar.BasePipelineFactory;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
 
-import javax.json.Json;
-import javax.json.JsonArray;
-import javax.json.JsonObject;
-import javax.json.JsonValue;
+import jakarta.json.Json;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
+import jakarta.json.JsonValue;
 import java.io.StringReader;
 import java.net.SocketAddress;
 import java.nio.charset.StandardCharsets;
@@ -70,8 +70,7 @@ public class OrbcommProtocolDecoder extends BaseProtocolDecoder {
         JsonArray messages = json.getJsonArray("Messages");
         for (int i = 0; i < messages.size(); i++) {
             JsonObject message = messages.getJsonObject(i);
-            DeviceSession deviceSession = getDeviceSession(
-                    channel, remoteAddress, true, message.getString("MobileID"));
+            DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, message.getString("MobileID"));
             if (deviceSession != null) {
 
                 Position position = new Position(getProtocolName());
diff --git a/src/main/java/org/traccar/protocol/OrbcommProtocolPoller.java b/src/main/java/org/traccar/protocol/OrbcommProtocolPoller.java
index 6a2d7a92d..0f57bfb49 100644
--- a/src/main/java/org/traccar/protocol/OrbcommProtocolPoller.java
+++ b/src/main/java/org/traccar/protocol/OrbcommProtocolPoller.java
@@ -24,8 +24,8 @@ import io.netty.handler.codec.http.HttpRequest;
 import io.netty.handler.codec.http.HttpVersion;
 import io.netty.handler.codec.http.QueryStringEncoder;
 import org.traccar.BaseProtocolPoller;
-import org.traccar.Context;
 import org.traccar.Protocol;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 
 import java.net.SocketAddress;
@@ -46,11 +46,11 @@ public class OrbcommProtocolPoller extends BaseProtocolPoller {
         this.startTime = startTime;
     }
 
-    public OrbcommProtocolPoller(Protocol protocol) {
-        super(Context.getConfig().getLong(Keys.PROTOCOL_INTERVAL.withPrefix(protocol.getName())));
-        accessId = Context.getConfig().getString(Keys.ORBCOMM_ACCESS_ID);
-        password = Context.getConfig().getString(Keys.ORBCOMM_PASSWORD);
-        host = Context.getConfig().getString(Keys.PROTOCOL_ADDRESS.withPrefix(protocol.getName()));
+    public OrbcommProtocolPoller(Protocol protocol, Config config) {
+        super(config.getLong(Keys.PROTOCOL_INTERVAL.withPrefix(protocol.getName())));
+        accessId = config.getString(Keys.ORBCOMM_ACCESS_ID);
+        password = config.getString(Keys.ORBCOMM_PASSWORD);
+        host = config.getString(Keys.PROTOCOL_ADDRESS.withPrefix(protocol.getName()));
     }
 
     @Override
diff --git a/src/main/java/org/traccar/protocol/OrionProtocol.java b/src/main/java/org/traccar/protocol/OrionProtocol.java
index 8485ae638..b78af462b 100644
--- a/src/main/java/org/traccar/protocol/OrionProtocol.java
+++ b/src/main/java/org/traccar/protocol/OrionProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class OrionProtocol extends BaseProtocol {
 
-    public OrionProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public OrionProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new OrionFrameDecoder());
                 pipeline.addLast(new OrionProtocolDecoder(OrionProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/OrionProtocolDecoder.java b/src/main/java/org/traccar/protocol/OrionProtocolDecoder.java
index af819989e..681891edb 100644
--- a/src/main/java/org/traccar/protocol/OrionProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OrionProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/OsmAndProtocol.java b/src/main/java/org/traccar/protocol/OsmAndProtocol.java
index d3aa2fd6f..e06580949 100644
--- a/src/main/java/org/traccar/protocol/OsmAndProtocol.java
+++ b/src/main/java/org/traccar/protocol/OsmAndProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.http.HttpResponseEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class OsmAndProtocol extends BaseProtocol {
 
-    public OsmAndProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public OsmAndProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HttpResponseEncoder());
                 pipeline.addLast(new HttpRequestDecoder());
                 pipeline.addLast(new HttpObjectAggregator(16384));
diff --git a/src/main/java/org/traccar/protocol/OsmAndProtocolDecoder.java b/src/main/java/org/traccar/protocol/OsmAndProtocolDecoder.java
index ec9bbc240..c8968023a 100644
--- a/src/main/java/org/traccar/protocol/OsmAndProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OsmAndProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2013 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,10 +21,8 @@ import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.handler.codec.http.QueryStringDecoder;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
-import org.traccar.database.CommandsManager;
 import org.traccar.helper.DateUtil;
 import org.traccar.model.CellTower;
 import org.traccar.model.Command;
@@ -61,6 +59,8 @@ public class OsmAndProtocolDecoder extends BaseHttpProtocolDecoder {
         position.setValid(true);
 
         Network network = new Network();
+        Double latitude = null;
+        Double longitude = null;
 
         for (Map.Entry<String, List<String>> entry : params.entrySet()) {
             for (String value : entry.getValue()) {
@@ -94,15 +94,15 @@ public class OsmAndProtocolDecoder extends BaseHttpProtocolDecoder {
                         }
                         break;
                     case "lat":
-                        position.setLatitude(Double.parseDouble(value));
+                        latitude = Double.parseDouble(value);
                         break;
                     case "lon":
-                        position.setLongitude(Double.parseDouble(value));
+                        longitude = Double.parseDouble(value);
                         break;
                     case "location":
                         String[] location = value.split(",");
-                        position.setLatitude(Double.parseDouble(location[0]));
-                        position.setLongitude(Double.parseDouble(location[1]));
+                        latitude = Double.parseDouble(location[0]);
+                        longitude = Double.parseDouble(location[1]);
                         break;
                     case "cell":
                         String[] cell = value.split(",");
@@ -143,6 +143,9 @@ public class OsmAndProtocolDecoder extends BaseHttpProtocolDecoder {
                     case "driverUniqueId":
                         position.set(Position.KEY_DRIVER_UNIQUE_ID, value);
                         break;
+                    case "charge":
+                        position.set(Position.KEY_CHARGE, Boolean.parseBoolean(value));
+                        break;
                     default:
                         try {
                             position.set(entry.getKey(), Double.parseDouble(value));
@@ -172,17 +175,17 @@ public class OsmAndProtocolDecoder extends BaseHttpProtocolDecoder {
             position.setNetwork(network);
         }
 
-        if (position.getLatitude() == 0 && position.getLongitude() == 0) {
+        if (latitude != null && longitude != null) {
+            position.setLatitude(latitude);
+            position.setLongitude(longitude);
+        } else {
             getLastLocation(position, position.getDeviceTime());
         }
 
         if (position.getDeviceId() != 0) {
             String response = null;
-            CommandsManager commandsManager = Context.getCommandsManager();
-            if (commandsManager != null) {
-                for (Command command : commandsManager.readQueuedCommands(position.getDeviceId(), 1)) {
-                    response = command.getString(Command.KEY_DATA);
-                }
+            for (Command command : getCommandsManager().readQueuedCommands(position.getDeviceId(), 1)) {
+                response = command.getString(Command.KEY_DATA);
             }
             if (response != null) {
                 sendResponse(channel, HttpResponseStatus.OK, Unpooled.copiedBuffer(response, StandardCharsets.UTF_8));
diff --git a/src/main/java/org/traccar/protocol/OutsafeProtocol.java b/src/main/java/org/traccar/protocol/OutsafeProtocol.java
index c728a404d..159534883 100644
--- a/src/main/java/org/traccar/protocol/OutsafeProtocol.java
+++ b/src/main/java/org/traccar/protocol/OutsafeProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.http.HttpResponseEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class OutsafeProtocol extends BaseProtocol {
 
-    public OutsafeProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public OutsafeProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HttpResponseEncoder());
                 pipeline.addLast(new HttpRequestDecoder());
                 pipeline.addLast(new HttpObjectAggregator(65535));
diff --git a/src/main/java/org/traccar/protocol/OutsafeProtocolDecoder.java b/src/main/java/org/traccar/protocol/OutsafeProtocolDecoder.java
index 9de77d241..f71778412 100644
--- a/src/main/java/org/traccar/protocol/OutsafeProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OutsafeProtocolDecoder.java
@@ -19,15 +19,15 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.model.Position;
 
-import javax.json.Json;
-import javax.json.JsonNumber;
-import javax.json.JsonObject;
-import javax.json.JsonString;
-import javax.json.JsonValue;
+import jakarta.json.Json;
+import jakarta.json.JsonNumber;
+import jakarta.json.JsonObject;
+import jakarta.json.JsonString;
+import jakarta.json.JsonValue;
 import java.io.StringReader;
 import java.net.SocketAddress;
 import java.nio.charset.StandardCharsets;
diff --git a/src/main/java/org/traccar/protocol/OwnTracksProtocol.java b/src/main/java/org/traccar/protocol/OwnTracksProtocol.java
index 0086371d8..c509ad282 100644
--- a/src/main/java/org/traccar/protocol/OwnTracksProtocol.java
+++ b/src/main/java/org/traccar/protocol/OwnTracksProtocol.java
@@ -22,13 +22,17 @@ import io.netty.handler.codec.http.HttpResponseEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class OwnTracksProtocol extends BaseProtocol {
 
-    public OwnTracksProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public OwnTracksProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HttpResponseEncoder());
                 pipeline.addLast(new HttpRequestDecoder());
                 pipeline.addLast(new HttpObjectAggregator(16384));
diff --git a/src/main/java/org/traccar/protocol/OwnTracksProtocolDecoder.java b/src/main/java/org/traccar/protocol/OwnTracksProtocolDecoder.java
index 509d14ae4..e54d07fa7 100644
--- a/src/main/java/org/traccar/protocol/OwnTracksProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OwnTracksProtocolDecoder.java
@@ -20,13 +20,13 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
 
-import javax.json.Json;
-import javax.json.JsonObject;
+import jakarta.json.Json;
+import jakarta.json.JsonObject;
 import java.io.StringReader;
 import java.net.SocketAddress;
 import java.nio.charset.StandardCharsets;
diff --git a/src/main/java/org/traccar/protocol/PacificTrackProtocol.java b/src/main/java/org/traccar/protocol/PacificTrackProtocol.java
index 08991ab64..a315d4d9f 100644
--- a/src/main/java/org/traccar/protocol/PacificTrackProtocol.java
+++ b/src/main/java/org/traccar/protocol/PacificTrackProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class PacificTrackProtocol extends BaseProtocol {
 
-    public PacificTrackProtocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public PacificTrackProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new PacificTrackProtocolDecoder(PacificTrackProtocol.this));
             }
         });
diff --git a/src/main/java/org/traccar/protocol/PacificTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/PacificTrackProtocolDecoder.java
index b5d34a029..7079745be 100644
--- a/src/main/java/org/traccar/protocol/PacificTrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PacificTrackProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/PathAwayProtocol.java b/src/main/java/org/traccar/protocol/PathAwayProtocol.java
index 6b5d75c5e..a65740475 100644
--- a/src/main/java/org/traccar/protocol/PathAwayProtocol.java
+++ b/src/main/java/org/traccar/protocol/PathAwayProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.http.HttpResponseEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class PathAwayProtocol extends BaseProtocol {
 
-    public PathAwayProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public PathAwayProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HttpResponseEncoder());
                 pipeline.addLast(new HttpRequestDecoder());
                 pipeline.addLast(new HttpObjectAggregator(16384));
diff --git a/src/main/java/org/traccar/protocol/PathAwayProtocolDecoder.java b/src/main/java/org/traccar/protocol/PathAwayProtocolDecoder.java
index 02a15e34a..3e7fa9a5b 100644
--- a/src/main/java/org/traccar/protocol/PathAwayProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PathAwayProtocolDecoder.java
@@ -24,7 +24,7 @@ import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.handler.codec.http.HttpVersion;
 import io.netty.handler.codec.http.QueryStringDecoder;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/PiligrimProtocol.java b/src/main/java/org/traccar/protocol/PiligrimProtocol.java
index d88c1ab72..9dd1bc491 100644
--- a/src/main/java/org/traccar/protocol/PiligrimProtocol.java
+++ b/src/main/java/org/traccar/protocol/PiligrimProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.http.HttpResponseEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class PiligrimProtocol extends BaseProtocol {
 
-    public PiligrimProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public PiligrimProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HttpResponseEncoder());
                 pipeline.addLast(new HttpRequestDecoder());
                 pipeline.addLast(new HttpObjectAggregator(16384));
diff --git a/src/main/java/org/traccar/protocol/PiligrimProtocolDecoder.java b/src/main/java/org/traccar/protocol/PiligrimProtocolDecoder.java
index 26ce2fe53..34c879cb8 100644
--- a/src/main/java/org/traccar/protocol/PiligrimProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PiligrimProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2014 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2014 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,16 +22,19 @@ import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.handler.codec.http.QueryStringDecoder;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
+import org.traccar.helper.Parser;
+import org.traccar.helper.PatternBuilder;
 import org.traccar.model.Position;
+import org.traccar.session.DeviceSession;
 
 import java.net.SocketAddress;
 import java.nio.charset.StandardCharsets;
 import java.util.LinkedList;
 import java.util.List;
+import java.util.regex.Pattern;
 
 public class PiligrimProtocolDecoder extends BaseHttpProtocolDecoder {
 
@@ -47,6 +50,21 @@ public class PiligrimProtocolDecoder extends BaseHttpProtocolDecoder {
     public static final int MSG_GPS_SENSORS = 0xF2;
     public static final int MSG_EVENTS = 0xF3;
 
+    private static final Pattern PATTERN = new PatternBuilder()
+            .expression("[^$]+")
+            .text("$GPRMC,")
+            .number("(dd)(dd)(dd).d+,")          // time (hhmmss)
+            .expression("([AV]),")               // validity
+            .number("(dd)(dd.d+),")              // latitude
+            .expression("([NS]),")
+            .number("(d{2,3})(dd.d+),")          // longitude
+            .expression("([EW]),")
+            .number("(d+.d+),")                  // speed
+            .number("(d+.d+),")                  // course
+            .number("(dd)(dd)(dd),")             // date (ddmmyy)
+            .any()
+            .compile();
+
     @Override
     protected Object decode(
             Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
@@ -150,6 +168,42 @@ public class PiligrimProtocolDecoder extends BaseHttpProtocolDecoder {
             }
 
             return positions;
+
+        } else if (uri.startsWith("/push.do")) {
+
+            sendResponse(channel, "PUSH.DO: OK");
+
+            String sentence = request.content().toString(StandardCharsets.US_ASCII);
+
+            String[] parts = sentence.split("&");
+            String phone = parts[1].substring(16);
+            DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, phone);
+            if (deviceSession == null) {
+                return null;
+            }
+
+            Parser parser = new Parser(PATTERN, parts[2]);
+            if (!parser.matches()) {
+                return null;
+            }
+
+            Position position = new Position(getProtocolName());
+            position.setDeviceId(deviceSession.getDeviceId());
+
+            DateBuilder dateBuilder = new DateBuilder()
+                    .setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
+
+            position.setValid(parser.next().equals("A"));
+            position.setLatitude(parser.nextCoordinate());
+            position.setLongitude(parser.nextCoordinate());
+            position.setSpeed(parser.nextDouble());
+            position.setCourse(parser.nextDouble());
+
+            dateBuilder.setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt());
+            position.setTime(dateBuilder.getDate());
+
+            return position;
+
         }
 
         return null;
diff --git a/src/main/java/org/traccar/protocol/PluginProtocol.java b/src/main/java/org/traccar/protocol/PluginProtocol.java
index d5f28da9d..fff1830e8 100644
--- a/src/main/java/org/traccar/protocol/PluginProtocol.java
+++ b/src/main/java/org/traccar/protocol/PluginProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class PluginProtocol extends BaseProtocol {
 
-    public PluginProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public PluginProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '#'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/PluginProtocolDecoder.java b/src/main/java/org/traccar/protocol/PluginProtocolDecoder.java
index 65de211ac..6ee95d18a 100644
--- a/src/main/java/org/traccar/protocol/PluginProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PluginProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/PolteProtocol.java b/src/main/java/org/traccar/protocol/PolteProtocol.java
index a3e548716..0fbedfb09 100644
--- a/src/main/java/org/traccar/protocol/PolteProtocol.java
+++ b/src/main/java/org/traccar/protocol/PolteProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.http.HttpResponseEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class PolteProtocol extends BaseProtocol {
 
-    public PolteProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public PolteProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HttpResponseEncoder());
                 pipeline.addLast(new HttpRequestDecoder());
                 pipeline.addLast(new HttpObjectAggregator(65535));
diff --git a/src/main/java/org/traccar/protocol/PolteProtocolDecoder.java b/src/main/java/org/traccar/protocol/PolteProtocolDecoder.java
index ce45abef6..8954db491 100644
--- a/src/main/java/org/traccar/protocol/PolteProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PolteProtocolDecoder.java
@@ -19,12 +19,12 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.model.Position;
 
-import javax.json.Json;
-import javax.json.JsonObject;
+import jakarta.json.Json;
+import jakarta.json.JsonObject;
 import java.io.StringReader;
 import java.net.SocketAddress;
 import java.nio.charset.StandardCharsets;
diff --git a/src/main/java/org/traccar/protocol/PortmanProtocol.java b/src/main/java/org/traccar/protocol/PortmanProtocol.java
index b7faae08a..3a4b49289 100644
--- a/src/main/java/org/traccar/protocol/PortmanProtocol.java
+++ b/src/main/java/org/traccar/protocol/PortmanProtocol.java
@@ -21,17 +21,21 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class PortmanProtocol extends BaseProtocol {
 
-    public PortmanProtocol() {
+    @Inject
+    public PortmanProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_ENGINE_RESUME);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/PortmanProtocolDecoder.java b/src/main/java/org/traccar/protocol/PortmanProtocolDecoder.java
index e1847a2b2..da9403313 100644
--- a/src/main/java/org/traccar/protocol/PortmanProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PortmanProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/PretraceProtocol.java b/src/main/java/org/traccar/protocol/PretraceProtocol.java
index 9d35c1c2f..54a34fc69 100644
--- a/src/main/java/org/traccar/protocol/PretraceProtocol.java
+++ b/src/main/java/org/traccar/protocol/PretraceProtocol.java
@@ -21,17 +21,21 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class PretraceProtocol extends BaseProtocol {
 
-    public PretraceProtocol() {
+    @Inject
+    public PretraceProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM,
                 Command.TYPE_POSITION_PERIODIC);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, ')'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/PretraceProtocolDecoder.java b/src/main/java/org/traccar/protocol/PretraceProtocolDecoder.java
index a19384e62..ff6ad763a 100644
--- a/src/main/java/org/traccar/protocol/PretraceProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PretraceProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/PretraceProtocolEncoder.java b/src/main/java/org/traccar/protocol/PretraceProtocolEncoder.java
index 1083a252e..a109e7a07 100644
--- a/src/main/java/org/traccar/protocol/PretraceProtocolEncoder.java
+++ b/src/main/java/org/traccar/protocol/PretraceProtocolEncoder.java
@@ -16,10 +16,9 @@
 package org.traccar.protocol;
 
 import org.traccar.BaseProtocolEncoder;
-import org.traccar.Context;
+import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
 import org.traccar.model.Command;
-import org.traccar.Protocol;
 
 public class PretraceProtocolEncoder extends BaseProtocolEncoder {
 
@@ -35,7 +34,7 @@ public class PretraceProtocolEncoder extends BaseProtocolEncoder {
     @Override
     protected Object encodeCommand(Command command) {
 
-        String uniqueId = Context.getIdentityManager().getById(command.getDeviceId()).getUniqueId();
+        String uniqueId = getUniqueId(command.getDeviceId());
 
         switch (command.getType()) {
             case Command.TYPE_CUSTOM:
diff --git a/src/main/java/org/traccar/protocol/PricolProtocol.java b/src/main/java/org/traccar/protocol/PricolProtocol.java
index 6821cd949..7b0e7386c 100644
--- a/src/main/java/org/traccar/protocol/PricolProtocol.java
+++ b/src/main/java/org/traccar/protocol/PricolProtocol.java
@@ -19,20 +19,24 @@ import io.netty.handler.codec.FixedLengthFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class PricolProtocol extends BaseProtocol {
 
-    public PricolProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public PricolProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new FixedLengthFrameDecoder(64));
                 pipeline.addLast(new PricolProtocolDecoder(PricolProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new PricolProtocolDecoder(PricolProtocol.this));
             }
         });
diff --git a/src/main/java/org/traccar/protocol/PricolProtocolDecoder.java b/src/main/java/org/traccar/protocol/PricolProtocolDecoder.java
index 190c68258..5f6805f09 100644
--- a/src/main/java/org/traccar/protocol/PricolProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PricolProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/ProgressProtocol.java b/src/main/java/org/traccar/protocol/ProgressProtocol.java
index aac84205d..8d159ef24 100644
--- a/src/main/java/org/traccar/protocol/ProgressProtocol.java
+++ b/src/main/java/org/traccar/protocol/ProgressProtocol.java
@@ -19,14 +19,18 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 
 import java.nio.ByteOrder;
+import jakarta.inject.Inject;
+
 public class ProgressProtocol extends BaseProtocol {
 
-    public ProgressProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public ProgressProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.LITTLE_ENDIAN, 1024, 2, 2, 4, 0, true));
                 pipeline.addLast(new ProgressProtocolDecoder(ProgressProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/ProgressProtocolDecoder.java b/src/main/java/org/traccar/protocol/ProgressProtocolDecoder.java
index 0025cd9e7..e3a5881da 100644
--- a/src/main/java/org/traccar/protocol/ProgressProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ProgressProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/PstProtocol.java b/src/main/java/org/traccar/protocol/PstProtocol.java
index d8c7008cb..01a83b31f 100644
--- a/src/main/java/org/traccar/protocol/PstProtocol.java
+++ b/src/main/java/org/traccar/protocol/PstProtocol.java
@@ -18,24 +18,28 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class PstProtocol extends BaseProtocol {
 
-    public PstProtocol() {
+    @Inject
+    public PstProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_ENGINE_RESUME);
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new PstProtocolEncoder(PstProtocol.this));
                 pipeline.addLast(new PstProtocolDecoder(PstProtocol.this));
             }
         });
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new PstFrameEncoder());
                 pipeline.addLast(new PstFrameDecoder());
                 pipeline.addLast(new PstProtocolEncoder(PstProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/PstProtocolDecoder.java b/src/main/java/org/traccar/protocol/PstProtocolDecoder.java
index e3fe1af62..872e77a3a 100644
--- a/src/main/java/org/traccar/protocol/PstProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PstProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/Pt215Protocol.java b/src/main/java/org/traccar/protocol/Pt215Protocol.java
index 09bd9b121..fd67b1241 100644
--- a/src/main/java/org/traccar/protocol/Pt215Protocol.java
+++ b/src/main/java/org/traccar/protocol/Pt215Protocol.java
@@ -19,13 +19,17 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Pt215Protocol extends BaseProtocol {
 
-    public Pt215Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Pt215Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 2, 1, -1, 0));
                 pipeline.addLast(new Pt215ProtocolDecoder(Pt215Protocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/Pt215ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Pt215ProtocolDecoder.java
index 48ce7dede..f669c5ffd 100644
--- a/src/main/java/org/traccar/protocol/Pt215ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Pt215ProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/Pt3000Protocol.java b/src/main/java/org/traccar/protocol/Pt3000Protocol.java
index 1ad0026a3..5f49084ed 100644
--- a/src/main/java/org/traccar/protocol/Pt3000Protocol.java
+++ b/src/main/java/org/traccar/protocol/Pt3000Protocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Pt3000Protocol extends BaseProtocol {
 
-    public Pt3000Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Pt3000Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, 'd')); // probably wrong
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/Pt3000ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Pt3000ProtocolDecoder.java
index e7f9e062a..c33660f51 100644
--- a/src/main/java/org/traccar/protocol/Pt3000ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Pt3000ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/Pt502Protocol.java b/src/main/java/org/traccar/protocol/Pt502Protocol.java
index 56444fb42..0257dd60f 100644
--- a/src/main/java/org/traccar/protocol/Pt502Protocol.java
+++ b/src/main/java/org/traccar/protocol/Pt502Protocol.java
@@ -19,20 +19,24 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class Pt502Protocol extends BaseProtocol {
 
-    public Pt502Protocol() {
+    @Inject
+    public Pt502Protocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM,
                 Command.TYPE_SET_TIMEZONE,
                 Command.TYPE_ALARM_SPEED,
                 Command.TYPE_OUTPUT_CONTROL,
                 Command.TYPE_REQUEST_PHOTO);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new Pt502FrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new Pt502ProtocolEncoder(Pt502Protocol.this));
diff --git a/src/main/java/org/traccar/protocol/Pt502ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Pt502ProtocolDecoder.java
index ff92b51f1..2a6a81a65 100644
--- a/src/main/java/org/traccar/protocol/Pt502ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Pt502ProtocolDecoder.java
@@ -20,8 +20,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
@@ -175,14 +174,13 @@ public class Pt502ProtocolDecoder extends BaseProtocolDecoder {
                 } else {
 
                     DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
-                    String uniqueId = Context.getIdentityManager().getById(deviceSession.getDeviceId()).getUniqueId();
 
                     Position position = new Position(getProtocolName());
                     position.setDeviceId(deviceSession.getDeviceId());
 
                     getLastLocation(position, null);
 
-                    position.set(Position.KEY_IMAGE, Context.getMediaManager().writeFile(uniqueId, photo, "jpg"));
+                    position.set(Position.KEY_IMAGE, writeMediaFile(deviceSession.getUniqueId(), photo, "jpg"));
                     photo.release();
                     photo = null;
 
diff --git a/src/main/java/org/traccar/protocol/Pt60Protocol.java b/src/main/java/org/traccar/protocol/Pt60Protocol.java
index c502426c5..83e3bfbeb 100644
--- a/src/main/java/org/traccar/protocol/Pt60Protocol.java
+++ b/src/main/java/org/traccar/protocol/Pt60Protocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Pt60Protocol extends BaseProtocol {
 
-    public Pt60Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Pt60Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, "@R#@", "@E#@"));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/Pt60ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Pt60ProtocolDecoder.java
index 6a3fe2734..94b549fe6 100644
--- a/src/main/java/org/traccar/protocol/Pt60ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Pt60ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/R12wProtocol.java b/src/main/java/org/traccar/protocol/R12wProtocol.java
index 3726233b4..b5b3eff81 100644
--- a/src/main/java/org/traccar/protocol/R12wProtocol.java
+++ b/src/main/java/org/traccar/protocol/R12wProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class R12wProtocol extends BaseProtocol {
 
-    public R12wProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public R12wProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/R12wProtocolDecoder.java b/src/main/java/org/traccar/protocol/R12wProtocolDecoder.java
index d60318447..3be784911 100644
--- a/src/main/java/org/traccar/protocol/R12wProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/R12wProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/RaceDynamicsProtocol.java b/src/main/java/org/traccar/protocol/RaceDynamicsProtocol.java
index c9db10610..6f7340902 100644
--- a/src/main/java/org/traccar/protocol/RaceDynamicsProtocol.java
+++ b/src/main/java/org/traccar/protocol/RaceDynamicsProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class RaceDynamicsProtocol extends BaseProtocol {
 
-    public RaceDynamicsProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public RaceDynamicsProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1500));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/RaceDynamicsProtocolDecoder.java b/src/main/java/org/traccar/protocol/RaceDynamicsProtocolDecoder.java
index f441bf8ed..89639ad30 100644
--- a/src/main/java/org/traccar/protocol/RaceDynamicsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RaceDynamicsProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/RadarProtocol.java b/src/main/java/org/traccar/protocol/RadarProtocol.java
index 9783778f0..8985e0e83 100644
--- a/src/main/java/org/traccar/protocol/RadarProtocol.java
+++ b/src/main/java/org/traccar/protocol/RadarProtocol.java
@@ -19,13 +19,17 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class RadarProtocol extends BaseProtocol {
 
-    public RadarProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public RadarProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 12, 2, -14, 0));
                 pipeline.addLast(new RadarProtocolDecoder(RadarProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/RadarProtocolDecoder.java b/src/main/java/org/traccar/protocol/RadarProtocolDecoder.java
index d87f77b84..818e97f8b 100644
--- a/src/main/java/org/traccar/protocol/RadarProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RadarProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/RaveonProtocol.java b/src/main/java/org/traccar/protocol/RaveonProtocol.java
index 44faadb3b..aa1a79219 100644
--- a/src/main/java/org/traccar/protocol/RaveonProtocol.java
+++ b/src/main/java/org/traccar/protocol/RaveonProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class RaveonProtocol extends BaseProtocol {
 
-    public RaveonProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public RaveonProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/RaveonProtocolDecoder.java b/src/main/java/org/traccar/protocol/RaveonProtocolDecoder.java
index 50acd20a1..dfc21bf69 100644
--- a/src/main/java/org/traccar/protocol/RaveonProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RaveonProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/RecodaProtocol.java b/src/main/java/org/traccar/protocol/RecodaProtocol.java
index 0bc9870bc..7d2fadae4 100644
--- a/src/main/java/org/traccar/protocol/RecodaProtocol.java
+++ b/src/main/java/org/traccar/protocol/RecodaProtocol.java
@@ -19,14 +19,18 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 
 import java.nio.ByteOrder;
+import jakarta.inject.Inject;
+
 public class RecodaProtocol extends BaseProtocol {
 
-    public RecodaProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public RecodaProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.LITTLE_ENDIAN, 1024, 4, 4, -8, 0, true));
                 pipeline.addLast(new RecodaProtocolDecoder(RecodaProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/RecodaProtocolDecoder.java b/src/main/java/org/traccar/protocol/RecodaProtocolDecoder.java
index 04098225f..0c417a62f 100644
--- a/src/main/java/org/traccar/protocol/RecodaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RecodaProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/RetranslatorProtocol.java b/src/main/java/org/traccar/protocol/RetranslatorProtocol.java
index fae81f7d2..a349a8191 100644
--- a/src/main/java/org/traccar/protocol/RetranslatorProtocol.java
+++ b/src/main/java/org/traccar/protocol/RetranslatorProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class RetranslatorProtocol extends BaseProtocol {
 
-    public RetranslatorProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public RetranslatorProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new RetranslatorFrameDecoder());
                 pipeline.addLast(new RetranslatorProtocolDecoder(RetranslatorProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/RetranslatorProtocolDecoder.java b/src/main/java/org/traccar/protocol/RetranslatorProtocolDecoder.java
index 5bf6cef50..afbf7e511 100644
--- a/src/main/java/org/traccar/protocol/RetranslatorProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RetranslatorProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/RfTrackProtocol.java b/src/main/java/org/traccar/protocol/RfTrackProtocol.java
new file mode 100644
index 000000000..ac033c348
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/RfTrackProtocol.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.handler.codec.http.HttpObjectAggregator;
+import io.netty.handler.codec.http.HttpRequestDecoder;
+import io.netty.handler.codec.http.HttpResponseEncoder;
+import org.traccar.BaseProtocol;
+import org.traccar.PipelineBuilder;
+import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
+
+public class RfTrackProtocol extends BaseProtocol {
+
+    @Inject
+    public RfTrackProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
+            @Override
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
+                pipeline.addLast(new HttpResponseEncoder());
+                pipeline.addLast(new HttpRequestDecoder());
+                pipeline.addLast(new HttpObjectAggregator(16384));
+                pipeline.addLast(new RfTrackProtocolDecoder(RfTrackProtocol.this));
+            }
+        });
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/RfTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/RfTrackProtocolDecoder.java
new file mode 100644
index 000000000..cbb204e3b
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/RfTrackProtocolDecoder.java
@@ -0,0 +1,163 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.buffer.Unpooled;
+import io.netty.channel.Channel;
+import io.netty.handler.codec.http.FullHttpRequest;
+import io.netty.handler.codec.http.HttpResponseStatus;
+import io.netty.handler.codec.http.QueryStringDecoder;
+import org.traccar.BaseHttpProtocolDecoder;
+import org.traccar.Protocol;
+import org.traccar.model.CellTower;
+import org.traccar.model.Command;
+import org.traccar.model.Network;
+import org.traccar.model.Position;
+import org.traccar.model.WifiAccessPoint;
+import org.traccar.session.DeviceSession;
+
+import jakarta.json.Json;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
+import java.io.StringReader;
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.Date;
+import java.util.List;
+import java.util.Map;
+
+public class RfTrackProtocolDecoder extends BaseHttpProtocolDecoder {
+
+    public RfTrackProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    @Override
+    protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        FullHttpRequest request = (FullHttpRequest) msg;
+        QueryStringDecoder decoder = new QueryStringDecoder(
+                request.content().toString(StandardCharsets.US_ASCII), false);
+        Map<String, List<String>> params = decoder.parameters();
+
+        Position position = new Position(getProtocolName());
+        Network network = new Network();
+
+        for (Map.Entry<String, List<String>> entry : params.entrySet()) {
+            for (String value : entry.getValue()) {
+                switch (entry.getKey()) {
+                    case "i":
+                        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, value);
+                        if (deviceSession == null) {
+                            sendResponse(channel, HttpResponseStatus.BAD_REQUEST);
+                            return null;
+                        }
+                        position.setDeviceId(deviceSession.getDeviceId());
+                        break;
+                    case "v":
+                        position.set(Position.KEY_VERSION_FW, value);
+                        break;
+                    case "t":
+                        position.setDeviceTime(new Date(Long.parseLong(value)));
+                        break;
+                    case "bat":
+                        int battery = Integer.parseInt(value);
+                        position.set(Position.KEY_BATTERY_LEVEL, battery & 0xff);
+                        position.set("plugStatus", (battery >> 8) & 0x0f);
+                        position.set(Position.KEY_CHARGE, ((battery >> 12) & 0x0f) == 1);
+                        break;
+                    case "id":
+                        position.set("braceletId", value);
+                        break;
+                    case "rc":
+                        int braceletCode = Integer.parseInt(value);
+                        position.set("braceletCode", braceletCode & 0xffff);
+                        position.set("braceletStatus", braceletCode >> 16);
+                        break;
+                    case "idt":
+                        long braceletTime = Long.parseLong(value);
+                        position.set("lastHeartbeat", (braceletTime >> 45) * 10);
+                        position.set("lastPaired", ((braceletTime >> 30) & 0xffff) * 10);
+                        position.set("lastUnpaired", ((braceletTime >> 15) & 0xffff) * 10);
+                        break;
+                    case "mt":
+                        int vibrationTime = Integer.parseInt(value);
+                        position.set("vibrationDevice", (vibrationTime & 0x7fff) * 10);
+                        position.set("vibrationBracelet", (vibrationTime >> 15) * 10);
+                        break;
+                    case "gps":
+                        JsonObject location = Json.createReader(new StringReader(value)).readObject();
+                        position.setValid(true);
+                        position.setAccuracy(location.getJsonNumber("a").doubleValue());
+                        position.setLongitude(location.getJsonNumber("x").doubleValue());
+                        position.setLatitude(location.getJsonNumber("y").doubleValue());
+                        position.setAltitude(location.getJsonNumber("z").doubleValue());
+                        position.setFixTime(new Date(location.getJsonNumber("t").longValue()));
+                        break;
+                    case "gsm":
+                        JsonObject cellInfo = Json.createReader(new StringReader(value)).readObject();
+                        int mcc = cellInfo.getInt("c");
+                        int mnc = cellInfo.getInt("n");
+                        JsonArray cells = cellInfo.getJsonArray("b");
+                        for (int i = 0; i < cells.size(); i++) {
+                            JsonObject cell = cells.getJsonObject(i);
+                            network.addCellTower(CellTower.from(
+                                    mcc, mnc, cell.getInt("l"), cell.getInt("c"), cell.getInt("b")));
+                        }
+                        break;
+                    case "dbm":
+                        position.set(Position.KEY_RSSI, Integer.parseInt(value));
+                        break;
+                    case "bar":
+                        position.set("pressure", Double.parseDouble(value));
+                        break;
+                    case "cob":
+                        position.set("pressureChanges", value);
+                        break;
+                    case "wifi":
+                        JsonArray wifiInfo = Json.createReader(new StringReader(value)).readArray();
+                        for (int i = 0; i < wifiInfo.size(); i++) {
+                            JsonObject wifi = wifiInfo.getJsonObject(i);
+                            network.addWifiAccessPoint(WifiAccessPoint.from(
+                                    wifi.getString("m").replace('-', ':'), wifi.getInt("l")));
+                        }
+                        break;
+                    case "u_ids":
+                        position.set("unpairedIds", value);
+                        break;
+                    default:
+                        break;
+                }
+            }
+        }
+
+        if (position.getFixTime() == null) {
+            getLastLocation(position, position.getDeviceTime());
+        }
+
+        if (network.getCellTowers() != null || network.getWifiAccessPoints() != null) {
+            position.setNetwork(network);
+        }
+
+        String response = "{}";
+        for (Command command : getCommandsManager().readQueuedCommands(position.getDeviceId(), 1)) {
+            response = command.getString(Command.KEY_DATA);
+        }
+        sendResponse(channel, HttpResponseStatus.OK, Unpooled.copiedBuffer(response, StandardCharsets.UTF_8));
+        return position;
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/RitiProtocol.java b/src/main/java/org/traccar/protocol/RitiProtocol.java
index de1026672..9916042a8 100644
--- a/src/main/java/org/traccar/protocol/RitiProtocol.java
+++ b/src/main/java/org/traccar/protocol/RitiProtocol.java
@@ -19,14 +19,18 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 
 import java.nio.ByteOrder;
+import jakarta.inject.Inject;
+
 public class RitiProtocol extends BaseProtocol {
 
-    public RitiProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public RitiProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.LITTLE_ENDIAN, 1024, 105, 2, 3, 0, true));
                 pipeline.addLast(new RitiProtocolDecoder(RitiProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/RitiProtocolDecoder.java b/src/main/java/org/traccar/protocol/RitiProtocolDecoder.java
index 46267ca90..501d5faa7 100644
--- a/src/main/java/org/traccar/protocol/RitiProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RitiProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/RoboTrackProtocol.java b/src/main/java/org/traccar/protocol/RoboTrackProtocol.java
index c2c531293..229c343bb 100644
--- a/src/main/java/org/traccar/protocol/RoboTrackProtocol.java
+++ b/src/main/java/org/traccar/protocol/RoboTrackProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class RoboTrackProtocol extends BaseProtocol {
 
-    public RoboTrackProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public RoboTrackProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new RoboTrackFrameDecoder());
                 pipeline.addLast(new RoboTrackProtocolDecoder(RoboTrackProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/RoboTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/RoboTrackProtocolDecoder.java
index b613f31d7..ffe16bd7b 100644
--- a/src/main/java/org/traccar/protocol/RoboTrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RoboTrackProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/RstProtocol.java b/src/main/java/org/traccar/protocol/RstProtocol.java
index 10d11d493..0bb809a49 100644
--- a/src/main/java/org/traccar/protocol/RstProtocol.java
+++ b/src/main/java/org/traccar/protocol/RstProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class RstProtocol extends BaseProtocol {
 
-    public RstProtocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public RstProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new RstProtocolDecoder(RstProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/RstProtocolDecoder.java b/src/main/java/org/traccar/protocol/RstProtocolDecoder.java
index 9e3261a04..fcc96fbf1 100644
--- a/src/main/java/org/traccar/protocol/RstProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RstProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/RuptelaProtocol.java b/src/main/java/org/traccar/protocol/RuptelaProtocol.java
index 5d1f86553..9f399e299 100644
--- a/src/main/java/org/traccar/protocol/RuptelaProtocol.java
+++ b/src/main/java/org/traccar/protocol/RuptelaProtocol.java
@@ -19,11 +19,15 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class RuptelaProtocol extends BaseProtocol {
 
-    public RuptelaProtocol() {
+    @Inject
+    public RuptelaProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM,
                 Command.TYPE_ENGINE_STOP,
@@ -35,9 +39,9 @@ public class RuptelaProtocol extends BaseProtocol {
                 Command.TYPE_OUTPUT_CONTROL,
                 Command.TYPE_SET_CONNECTION,
                 Command.TYPE_SET_ODOMETER);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 0, 2, 2, 0));
                 pipeline.addLast(new RuptelaProtocolEncoder(RuptelaProtocol.this));
                 pipeline.addLast(new RuptelaProtocolDecoder(RuptelaProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/RuptelaProtocolDecoder.java b/src/main/java/org/traccar/protocol/RuptelaProtocolDecoder.java
index 2812d22ff..649de7c5c 100644
--- a/src/main/java/org/traccar/protocol/RuptelaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RuptelaProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2013 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,10 +19,10 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
+import org.traccar.helper.BitUtil;
 import org.traccar.helper.DataConverter;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
@@ -50,6 +50,7 @@ public class RuptelaProtocolDecoder extends BaseProtocolDecoder {
     public static final int MSG_SMS_VIA_GPRS_RESPONSE = 7;
     public static final int MSG_SMS_VIA_GPRS = 8;
     public static final int MSG_DTCS = 9;
+    public static final int MSG_IDENTIFICATION = 15;
     public static final int MSG_SET_IO = 17;
     public static final int MSG_FILES = 37;
     public static final int MSG_EXTENDED_RECORDS = 68;
@@ -92,22 +93,48 @@ public class RuptelaProtocolDecoder extends BaseProtocolDecoder {
         }
     }
 
+    private void decodeDriver(Position position, String part1, String part2) {
+        Long driverIdPart1 = (Long) position.getAttributes().remove(part1);
+        Long driverIdPart2 = (Long) position.getAttributes().remove(part2);
+        if (driverIdPart1 != null && driverIdPart2 != null) {
+            ByteBuf driverId = Unpooled.copyLong(driverIdPart1, driverIdPart2);
+            position.set(Position.KEY_DRIVER_UNIQUE_ID, driverId.toString(StandardCharsets.US_ASCII));
+            driverId.release();
+        }
+    }
+
     private void decodeParameter(Position position, int id, ByteBuf buf, int length) {
         switch (id) {
             case 2:
             case 3:
             case 4:
-                position.set("di" + (id - 1), readValue(buf, length, false));
-                break;
             case 5:
-                position.set(Position.KEY_IGNITION, readValue(buf, length, false) == 1);
+                position.set(Position.PREFIX_IN + (id - 1), readValue(buf, length, false));
+                break;
+            case 20:
+                position.set(Position.PREFIX_ADC + 3, readValue(buf, length, false));
+                break;
+            case 21:
+                position.set(Position.PREFIX_ADC + 4, readValue(buf, length, false));
+                break;
+            case 22:
+                position.set(Position.PREFIX_ADC + 1, readValue(buf, length, false));
+                break;
+            case 23:
+                position.set(Position.PREFIX_ADC + 2, readValue(buf, length, false));
                 break;
             case 29:
-                position.set(Position.KEY_POWER, readValue(buf, length, false));
+                position.set(Position.KEY_POWER, readValue(buf, length, false) * 0.001);
                 break;
             case 30:
                 position.set(Position.KEY_BATTERY, readValue(buf, length, false) * 0.001);
                 break;
+            case 32:
+                position.set(Position.KEY_DEVICE_TEMP, readValue(buf, length, true));
+                break;
+            case 65:
+                position.set(Position.KEY_ODOMETER, readValue(buf, length, true));
+                break;
             case 74:
                 position.set(Position.PREFIX_TEMP + 3, readValue(buf, length, true) * 0.1);
                 break;
@@ -116,6 +143,14 @@ public class RuptelaProtocolDecoder extends BaseProtocolDecoder {
             case 80:
                 position.set(Position.PREFIX_TEMP + (id - 78), readValue(buf, length, true) * 0.1);
                 break;
+            case 88:
+                if (readValue(buf, length, false) > 0) {
+                    position.set(Position.KEY_ALARM, Position.ALARM_JAMMING);
+                }
+                break;
+            case 95:
+                position.set(Position.KEY_OBD_SPEED, UnitsConverter.knotsFromKph(readValue(buf, length, true)));
+                break;
             case 134:
                 if (readValue(buf, length, false) > 0) {
                     position.set(Position.KEY_ALARM, Position.ALARM_BRAKING);
@@ -126,9 +161,45 @@ public class RuptelaProtocolDecoder extends BaseProtocolDecoder {
                     position.set(Position.KEY_ALARM, Position.ALARM_ACCELERATION);
                 }
                 break;
+            case 150:
+                position.set(Position.KEY_OPERATOR, readValue(buf, length, false));
+                break;
+            case 170:
+                position.set(Position.KEY_CHARGE, readValue(buf, length, false) > 0);
+                break;
+            case 173:
+                position.set(Position.KEY_MOTION, readValue(buf, length, false) > 0);
+                break;
             case 197:
                 position.set(Position.KEY_RPM, readValue(buf, length, false) * 0.125);
                 break;
+            case 251:
+            case 409:
+                position.set(Position.KEY_IGNITION, readValue(buf, length, false) > 0);
+                break;
+            case 410:
+                if (readValue(buf, length, false) > 0) {
+                    position.set(Position.KEY_ALARM, Position.ALARM_TOW);
+                }
+                break;
+            case 411:
+                if (readValue(buf, length, false) > 0) {
+                    position.set(Position.KEY_ALARM, Position.ALARM_ACCIDENT);
+                }
+                break;
+            case 415:
+                if (readValue(buf, length, false) == 0) {
+                    position.set(Position.KEY_ALARM, Position.ALARM_GPS_ANTENNA_CUT);
+                }
+                break;
+            case 645:
+                position.set(Position.KEY_OBD_ODOMETER, readValue(buf, length, true) * 1000);
+                break;
+            case 758:
+                if (readValue(buf, length, false) == 1) {
+                    position.set(Position.KEY_ALARM, Position.ALARM_TAMPERING);
+                }
+                break;
             default:
                 position.set(Position.PREFIX_IO + id, readValue(buf, length, false));
                 break;
@@ -166,22 +237,32 @@ public class RuptelaProtocolDecoder extends BaseProtocolDecoder {
                 buf.readUnsignedByte(); // timestamp extension
 
                 if (type == MSG_EXTENDED_RECORDS) {
-                    buf.readUnsignedByte(); // record extension
+                    int recordExtension = buf.readUnsignedByte();
+                    int mergeRecordCount = BitUtil.from(recordExtension, 4);
+                    int currentRecord = BitUtil.to(recordExtension, 4);
+
+                    if (currentRecord > 0 && currentRecord <= mergeRecordCount) {
+                        position = positions.remove(positions.size() - 1);
+                    }
                 }
 
                 buf.readUnsignedByte(); // priority (reserved)
 
-                position.setValid(true);
-                position.setLongitude(buf.readInt() / 10000000.0);
-                position.setLatitude(buf.readInt() / 10000000.0);
-                position.setAltitude(buf.readUnsignedShort() / 10.0);
-                position.setCourse(buf.readUnsignedShort() / 100.0);
-
-                position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
-
-                position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShort()));
-
-                position.set(Position.KEY_HDOP, buf.readUnsignedByte() / 10.0);
+                int longitude = buf.readInt();
+                int latitude = buf.readInt();
+                if (longitude > Integer.MIN_VALUE && latitude > Integer.MIN_VALUE) {
+                    position.setValid(true);
+                    position.setLongitude(longitude / 10000000.0);
+                    position.setLatitude(latitude / 10000000.0);
+                    position.setAltitude(buf.readUnsignedShort() / 10.0);
+                    position.setCourse(buf.readUnsignedShort() / 100.0);
+                    position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+                    position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShort()));
+                    position.set(Position.KEY_HDOP, buf.readUnsignedByte() / 10.0);
+                } else {
+                    buf.skipBytes(8);
+                    getLastLocation(position, null);
+                }
 
                 if (type == MSG_EXTENDED_RECORDS) {
                     position.set(Position.KEY_EVENT, buf.readUnsignedShort());
@@ -217,12 +298,13 @@ public class RuptelaProtocolDecoder extends BaseProtocolDecoder {
                     decodeParameter(position, id, buf, 8);
                 }
 
-                Long driverIdPart1 = (Long) position.getAttributes().remove(Position.PREFIX_IO + 126);
-                Long driverIdPart2 = (Long) position.getAttributes().remove(Position.PREFIX_IO + 127);
-                if (driverIdPart1 != null && driverIdPart2 != null) {
-                    ByteBuf driverId = Unpooled.copyLong(driverIdPart1, driverIdPart2);
-                    position.set(Position.KEY_DRIVER_UNIQUE_ID, driverId.toString(StandardCharsets.US_ASCII));
-                    driverId.release();
+                decodeDriver(position, Position.PREFIX_IO + 126, Position.PREFIX_IO + 127); // can driver
+                decodeDriver(position, Position.PREFIX_IO + 155, Position.PREFIX_IO + 156); // tco driver
+
+                Long tagIdPart1 = (Long) position.getAttributes().remove(Position.PREFIX_IO + 760);
+                Long tagIdPart2 = (Long) position.getAttributes().remove(Position.PREFIX_IO + 761);
+                if (tagIdPart1 != null && tagIdPart2 != null) {
+                    position.set("tagId", Long.toHexString(tagIdPart1) + Long.toHexString(tagIdPart2));
                 }
 
                 positions.add(position);
@@ -297,7 +379,7 @@ public class RuptelaProtocolDecoder extends BaseProtocolDecoder {
                     Position position = new Position(getProtocolName());
                     position.setDeviceId(deviceSession.getDeviceId());
                     getLastLocation(position, null);
-                    position.set(Position.KEY_IMAGE, Context.getMediaManager().writeFile(imei, photo, "jpg"));
+                    position.set(Position.KEY_IMAGE, writeMediaFile(imei, photo, "jpg"));
                     photo.release();
                     photo = null;
                     return position;
@@ -306,6 +388,18 @@ public class RuptelaProtocolDecoder extends BaseProtocolDecoder {
 
             return null;
 
+        } else if (type == MSG_IDENTIFICATION) {
+
+            ByteBuf content = Unpooled.buffer();
+            content.writeByte(1);
+            ByteBuf response = RuptelaProtocolEncoder.encodeContent(type, content);
+            content.release();
+            if (channel != null) {
+                channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
+            }
+
+            return null;
+
         } else {
 
             return decodeCommandResponse(deviceSession, type, buf);
diff --git a/src/main/java/org/traccar/protocol/RuptelaProtocolEncoder.java b/src/main/java/org/traccar/protocol/RuptelaProtocolEncoder.java
index 442961b19..5ec971a98 100644
--- a/src/main/java/org/traccar/protocol/RuptelaProtocolEncoder.java
+++ b/src/main/java/org/traccar/protocol/RuptelaProtocolEncoder.java
@@ -80,14 +80,14 @@ public class RuptelaProtocolEncoder extends BaseProtocolEncoder {
                 return encodeContent(RuptelaProtocolDecoder.MSG_FIRMWARE_UPDATE, content);
             case Command.TYPE_OUTPUT_CONTROL:
                 content.writeInt(command.getInteger(Command.KEY_INDEX));
-                content.writeInt(Integer.parseInt(command.getString(Command.KEY_DATA)));
+                content.writeInt(command.getInteger(Command.KEY_DATA));
                 return encodeContent(RuptelaProtocolDecoder.MSG_SET_IO, content);
             case Command.TYPE_SET_CONNECTION:
                 String c = command.getString(Command.KEY_SERVER) + "," + command.getInteger(Command.KEY_PORT) + ",TCP";
                 content.writeBytes(c.getBytes(StandardCharsets.US_ASCII));
                 return encodeContent(RuptelaProtocolDecoder.MSG_SET_CONNECTION, content);
             case Command.TYPE_SET_ODOMETER:
-                content.writeInt(Integer.parseInt(command.getString(Command.KEY_DATA)));
+                content.writeInt(command.getInteger(Command.KEY_DATA));
                 return encodeContent(RuptelaProtocolDecoder.MSG_SET_ODOMETER, content);
             default:
                 return null;
diff --git a/src/main/java/org/traccar/protocol/S168Protocol.java b/src/main/java/org/traccar/protocol/S168Protocol.java
index e78664c40..5fb0c6e72 100644
--- a/src/main/java/org/traccar/protocol/S168Protocol.java
+++ b/src/main/java/org/traccar/protocol/S168Protocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class S168Protocol extends BaseProtocol {
 
-    public S168Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public S168Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '$'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/S168ProtocolDecoder.java b/src/main/java/org/traccar/protocol/S168ProtocolDecoder.java
index 6d565517b..cf665c6ba 100644
--- a/src/main/java/org/traccar/protocol/S168ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/S168ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.CellTower;
@@ -107,7 +107,7 @@ public class S168ProtocolDecoder extends BaseProtocolDecoder {
         if (network.getCellTowers() != null || network.getWifiAccessPoints() != null) {
             position.setNetwork(network);
         }
-        if (!position.getAttributes().containsKey(Position.KEY_SATELLITES)) {
+        if (!position.hasAttribute(Position.KEY_SATELLITES)) {
             getLastLocation(position, null);
         }
 
diff --git a/src/main/java/org/traccar/protocol/SabertekProtocol.java b/src/main/java/org/traccar/protocol/SabertekProtocol.java
index 0ec847b60..cb3f2ab32 100644
--- a/src/main/java/org/traccar/protocol/SabertekProtocol.java
+++ b/src/main/java/org/traccar/protocol/SabertekProtocol.java
@@ -19,13 +19,17 @@ import io.netty.handler.codec.string.StringDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class SabertekProtocol extends BaseProtocol {
 
-    public SabertekProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public SabertekProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new SabertekFrameDecoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new SabertekProtocolDecoder(SabertekProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/SabertekProtocolDecoder.java b/src/main/java/org/traccar/protocol/SabertekProtocolDecoder.java
index 3033aa2cc..71279812c 100644
--- a/src/main/java/org/traccar/protocol/SabertekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SabertekProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/SanavProtocol.java b/src/main/java/org/traccar/protocol/SanavProtocol.java
index 6799c57e6..ac1941725 100644
--- a/src/main/java/org/traccar/protocol/SanavProtocol.java
+++ b/src/main/java/org/traccar/protocol/SanavProtocol.java
@@ -20,21 +20,25 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class SanavProtocol extends BaseProtocol {
 
-    public SanavProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public SanavProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new SanavProtocolDecoder(SanavProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new SanavProtocolDecoder(SanavProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/SanavProtocolDecoder.java b/src/main/java/org/traccar/protocol/SanavProtocolDecoder.java
index 7e1c158e6..6741cb67c 100644
--- a/src/main/java/org/traccar/protocol/SanavProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SanavProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/SanulProtocol.java b/src/main/java/org/traccar/protocol/SanulProtocol.java
index 3104e9366..cba162296 100644
--- a/src/main/java/org/traccar/protocol/SanulProtocol.java
+++ b/src/main/java/org/traccar/protocol/SanulProtocol.java
@@ -19,15 +19,19 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 
 import java.nio.ByteOrder;
 
+import jakarta.inject.Inject;
+
 public class SanulProtocol extends BaseProtocol {
 
-    public SanulProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public SanulProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.LITTLE_ENDIAN, 1024, 3, 2, 0, 0, true));
                 pipeline.addLast(new SanulProtocolDecoder(SanulProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/SanulProtocolDecoder.java b/src/main/java/org/traccar/protocol/SanulProtocolDecoder.java
index 036d1ee51..9568cd6d3 100644
--- a/src/main/java/org/traccar/protocol/SanulProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SanulProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/SatsolProtocol.java b/src/main/java/org/traccar/protocol/SatsolProtocol.java
index b69fdd1fe..7252f99f0 100644
--- a/src/main/java/org/traccar/protocol/SatsolProtocol.java
+++ b/src/main/java/org/traccar/protocol/SatsolProtocol.java
@@ -19,15 +19,19 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 
 import java.nio.ByteOrder;
 
+import jakarta.inject.Inject;
+
 public class SatsolProtocol extends BaseProtocol {
 
-    public SatsolProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public SatsolProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.LITTLE_ENDIAN, 1400, 8, 2, 0, 0, true));
                 pipeline.addLast(new SatsolProtocolDecoder(SatsolProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/SatsolProtocolDecoder.java b/src/main/java/org/traccar/protocol/SatsolProtocolDecoder.java
index c457d5620..37a84be04 100644
--- a/src/main/java/org/traccar/protocol/SatsolProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SatsolProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/SigfoxProtocol.java b/src/main/java/org/traccar/protocol/SigfoxProtocol.java
index e2f2cbe1f..edd624727 100644
--- a/src/main/java/org/traccar/protocol/SigfoxProtocol.java
+++ b/src/main/java/org/traccar/protocol/SigfoxProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.http.HttpResponseEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class SigfoxProtocol extends BaseProtocol {
 
-    public SigfoxProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public SigfoxProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HttpResponseEncoder());
                 pipeline.addLast(new HttpRequestDecoder());
                 pipeline.addLast(new HttpObjectAggregator(65535));
diff --git a/src/main/java/org/traccar/protocol/SigfoxProtocolDecoder.java b/src/main/java/org/traccar/protocol/SigfoxProtocolDecoder.java
index ce577f392..1298112d1 100644
--- a/src/main/java/org/traccar/protocol/SigfoxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SigfoxProtocolDecoder.java
@@ -22,7 +22,8 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.helper.BufferUtil;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DataConverter;
@@ -31,11 +32,11 @@ import org.traccar.model.Network;
 import org.traccar.model.Position;
 import org.traccar.model.WifiAccessPoint;
 
-import javax.json.Json;
-import javax.json.JsonNumber;
-import javax.json.JsonObject;
-import javax.json.JsonString;
-import javax.json.JsonValue;
+import jakarta.json.Json;
+import jakarta.json.JsonNumber;
+import jakarta.json.JsonObject;
+import jakarta.json.JsonString;
+import jakarta.json.JsonValue;
 import java.io.StringReader;
 import java.net.SocketAddress;
 import java.net.URLDecoder;
@@ -159,18 +160,8 @@ public class SigfoxProtocolDecoder extends BaseHttpProtocolDecoder {
                 if (event == 0x0f || event == 0x1f) {
 
                     position.setValid(event >> 4 > 0);
-
-                    long value;
-                    value = buf.readUnsignedInt();
-                    position.setLatitude(BitUtil.to(value, 31) * 0.000001);
-                    if (BitUtil.check(value, 31)) {
-                        position.setLatitude(-position.getLatitude());
-                    }
-                    value = buf.readUnsignedInt();
-                    position.setLongitude(BitUtil.to(value, 31) * 0.000001);
-                    if (BitUtil.check(value, 31)) {
-                        position.setLongitude(-position.getLongitude());
-                    }
+                    position.setLatitude(BufferUtil.readSignedMagnitudeInt(buf) * 0.000001);
+                    position.setLongitude(BufferUtil.readSignedMagnitudeInt(buf) * 0.000001);
 
                     position.set(Position.KEY_BATTERY, (int) buf.readUnsignedByte());
 
diff --git a/src/main/java/org/traccar/protocol/SiwiProtocol.java b/src/main/java/org/traccar/protocol/SiwiProtocol.java
index 8963721c8..59b96bf72 100644
--- a/src/main/java/org/traccar/protocol/SiwiProtocol.java
+++ b/src/main/java/org/traccar/protocol/SiwiProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class SiwiProtocol extends BaseProtocol {
 
-    public SiwiProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public SiwiProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new SiwiProtocolDecoder(SiwiProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/SiwiProtocolDecoder.java b/src/main/java/org/traccar/protocol/SiwiProtocolDecoder.java
index bf8bfab77..7ba501834 100644
--- a/src/main/java/org/traccar/protocol/SiwiProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SiwiProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/SkypatrolProtocol.java b/src/main/java/org/traccar/protocol/SkypatrolProtocol.java
index 7c6203d86..615ef536d 100644
--- a/src/main/java/org/traccar/protocol/SkypatrolProtocol.java
+++ b/src/main/java/org/traccar/protocol/SkypatrolProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class SkypatrolProtocol extends BaseProtocol {
 
-    public SkypatrolProtocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public SkypatrolProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new SkypatrolProtocolDecoder(SkypatrolProtocol.this));
             }
         });
diff --git a/src/main/java/org/traccar/protocol/SkypatrolProtocolDecoder.java b/src/main/java/org/traccar/protocol/SkypatrolProtocolDecoder.java
index 8aae310bb..6ffcbbe44 100644
--- a/src/main/java/org/traccar/protocol/SkypatrolProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SkypatrolProtocolDecoder.java
@@ -20,8 +20,7 @@ import io.netty.channel.Channel;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
 import org.traccar.helper.BitUtil;
@@ -35,11 +34,15 @@ public class SkypatrolProtocolDecoder extends BaseProtocolDecoder {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(SkypatrolProtocolDecoder.class);
 
-    private final long defaultMask;
+    private long defaultMask;
 
     public SkypatrolProtocolDecoder(Protocol protocol) {
         super(protocol);
-        defaultMask = Context.getConfig().getInteger(Keys.PROTOCOL_MASK.withPrefix(getProtocolName()));
+    }
+
+    @Override
+    protected void init() {
+        defaultMask = getConfig().getInteger(Keys.PROTOCOL_MASK.withPrefix(getProtocolName()));
     }
 
     private static double convertCoordinate(long coordinate) {
diff --git a/src/main/java/org/traccar/protocol/SmartSoleProtocol.java b/src/main/java/org/traccar/protocol/SmartSoleProtocol.java
index bcf43f68b..e4838581a 100644
--- a/src/main/java/org/traccar/protocol/SmartSoleProtocol.java
+++ b/src/main/java/org/traccar/protocol/SmartSoleProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class SmartSoleProtocol extends BaseProtocol {
 
-    public SmartSoleProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public SmartSoleProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '$'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/SmartSoleProtocolDecoder.java b/src/main/java/org/traccar/protocol/SmartSoleProtocolDecoder.java
index 04920c969..7fc38f061 100644
--- a/src/main/java/org/traccar/protocol/SmartSoleProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SmartSoleProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/SmokeyProtocol.java b/src/main/java/org/traccar/protocol/SmokeyProtocol.java
index 482c8347c..0aa2bcfa7 100644
--- a/src/main/java/org/traccar/protocol/SmokeyProtocol.java
+++ b/src/main/java/org/traccar/protocol/SmokeyProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class SmokeyProtocol extends BaseProtocol {
 
-    public SmokeyProtocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public SmokeyProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new SmokeyProtocolDecoder(SmokeyProtocol.this));
             }
         });
diff --git a/src/main/java/org/traccar/protocol/SmokeyProtocolDecoder.java b/src/main/java/org/traccar/protocol/SmokeyProtocolDecoder.java
index 9da52e97a..2244ad289 100644
--- a/src/main/java/org/traccar/protocol/SmokeyProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SmokeyProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/SolarPoweredProtocol.java b/src/main/java/org/traccar/protocol/SolarPoweredProtocol.java
index 53a948cdc..e00f27b9b 100644
--- a/src/main/java/org/traccar/protocol/SolarPoweredProtocol.java
+++ b/src/main/java/org/traccar/protocol/SolarPoweredProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class SolarPoweredProtocol extends BaseProtocol {
 
-    public SolarPoweredProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public SolarPoweredProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HuabaoFrameDecoder());
                 pipeline.addLast(new SolarPoweredProtocolDecoder(SolarPoweredProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/SolarPoweredProtocolDecoder.java b/src/main/java/org/traccar/protocol/SolarPoweredProtocolDecoder.java
index 9d5dc072f..0432fbd03 100644
--- a/src/main/java/org/traccar/protocol/SolarPoweredProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SolarPoweredProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/SpotProtocol.java b/src/main/java/org/traccar/protocol/SpotProtocol.java
index bbf0e8d8a..4fc57f177 100644
--- a/src/main/java/org/traccar/protocol/SpotProtocol.java
+++ b/src/main/java/org/traccar/protocol/SpotProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.http.HttpResponseEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class SpotProtocol extends BaseProtocol {
 
-    public SpotProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public SpotProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new HttpResponseEncoder());
                 pipeline.addLast(new HttpRequestDecoder());
                 pipeline.addLast(new HttpObjectAggregator(65535));
diff --git a/src/main/java/org/traccar/protocol/SpotProtocolDecoder.java b/src/main/java/org/traccar/protocol/SpotProtocolDecoder.java
index 34417d95f..d493b748d 100644
--- a/src/main/java/org/traccar/protocol/SpotProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SpotProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateUtil;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/StarLinkProtocol.java b/src/main/java/org/traccar/protocol/StarLinkProtocol.java
index 5630722ee..6dcd40fbf 100644
--- a/src/main/java/org/traccar/protocol/StarLinkProtocol.java
+++ b/src/main/java/org/traccar/protocol/StarLinkProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class StarLinkProtocol extends BaseProtocol {
 
-    public StarLinkProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public StarLinkProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/StarLinkProtocolDecoder.java b/src/main/java/org/traccar/protocol/StarLinkProtocolDecoder.java
index 7a6b6f4fe..193005e28 100644
--- a/src/main/java/org/traccar/protocol/StarLinkProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/StarLinkProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,8 +17,9 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.config.Keys;
+import org.traccar.helper.model.AttributeUtil;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DataConverter;
 import org.traccar.helper.Parser;
@@ -55,17 +56,21 @@ public class StarLinkProtocolDecoder extends BaseProtocolDecoder {
 
     public StarLinkProtocolDecoder(Protocol protocol) {
         super(protocol);
+    }
 
-        setFormat(Context.getConfig().getString(
-                getProtocolName() + ".format", "#EDT#,#EID#,#PDT#,#LAT#,#LONG#,#SPD#,#HEAD#,#ODO#,"
+    @Override
+    protected void init() {
+        setFormat(getConfig().getString(
+                Keys.PROTOCOL_FORMAT.withPrefix(getProtocolName()), "#EDT#,#EID#,#PDT#,#LAT#,#LONG#,#SPD#,#HEAD#,#ODO#,"
                 + "#IN1#,#IN2#,#IN3#,#IN4#,#OUT1#,#OUT2#,#OUT3#,#OUT4#,#LAC#,#CID#,#VIN#,#VBAT#,#DEST#,#IGN#,#ENG#"));
 
-        setDateFormat(Context.getConfig().getString(getProtocolName() + ".dateFormat", "yyMMddHHmmss"));
+        setDateFormat(getConfig().getString(Keys.PROTOCOL_DATE_FORMAT.withPrefix(getProtocolName()), "yyMMddHHmmss"));
     }
 
     public String[] getFormat(long deviceId) {
-        return Context.getIdentityManager().lookupAttributeString(
-                deviceId, getProtocolName() + ".format", format, false, false).split(",");
+        String value = AttributeUtil.lookup(
+                getCacheManager(), Keys.PROTOCOL_FORMAT.withPrefix(getProtocolName()), deviceId);
+        return (value != null ? value : format).split(",");
     }
 
     public void setFormat(String format) {
@@ -73,8 +78,9 @@ public class StarLinkProtocolDecoder extends BaseProtocolDecoder {
     }
 
     public DateFormat getDateFormat(long deviceId) {
-        DateFormat dateFormat = new SimpleDateFormat(Context.getIdentityManager().lookupAttributeString(
-                deviceId, getProtocolName() + ".dateFormat", this.dateFormat, false, false));
+        String value = AttributeUtil.lookup(
+                getCacheManager(), Keys.PROTOCOL_DATE_FORMAT.withPrefix(getProtocolName()), deviceId);
+        DateFormat dateFormat = new SimpleDateFormat(value != null ? value : this.dateFormat);
         dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
         return dateFormat;
     }
@@ -313,7 +319,7 @@ public class StarLinkProtocolDecoder extends BaseProtocolDecoder {
         }
 
         if (lac != null && cid != null) {
-            position.setNetwork(new Network(CellTower.fromLacCid(lac, cid)));
+            position.setNetwork(new Network(CellTower.fromLacCid(getConfig(), lac, cid)));
         }
 
         if (event == 20) {
diff --git a/src/main/java/org/traccar/protocol/StarcomProtocol.java b/src/main/java/org/traccar/protocol/StarcomProtocol.java
index 63a6143a6..458220e59 100644
--- a/src/main/java/org/traccar/protocol/StarcomProtocol.java
+++ b/src/main/java/org/traccar/protocol/StarcomProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class StarcomProtocol extends BaseProtocol {
 
-    public StarcomProtocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public StarcomProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StarcomProtocolDecoder(StarcomProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/StarcomProtocolDecoder.java b/src/main/java/org/traccar/protocol/StarcomProtocolDecoder.java
index 5ffddb318..56ab733c8 100644
--- a/src/main/java/org/traccar/protocol/StarcomProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/StarcomProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
 
diff --git a/src/main/java/org/traccar/protocol/StartekProtocol.java b/src/main/java/org/traccar/protocol/StartekProtocol.java
index 32f1c5a29..550545345 100644
--- a/src/main/java/org/traccar/protocol/StartekProtocol.java
+++ b/src/main/java/org/traccar/protocol/StartekProtocol.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2021 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,20 +21,24 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class StartekProtocol extends BaseProtocol {
 
-    public StartekProtocol() {
+    @Inject
+    public StartekProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM,
                 Command.TYPE_OUTPUT_CONTROL,
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_ENGINE_RESUME);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
-                pipeline.addLast(new LineBasedFrameDecoder(1024));
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
+                pipeline.addLast(new LineBasedFrameDecoder(1100));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StartekProtocolEncoder(StartekProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/StartekProtocolDecoder.java b/src/main/java/org/traccar/protocol/StartekProtocolDecoder.java
index c1869def2..9c749c8d9 100644
--- a/src/main/java/org/traccar/protocol/StartekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/StartekProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.Parser;
@@ -72,21 +72,25 @@ public class StartekProtocolDecoder extends BaseProtocolDecoder {
             .number("(x+)")                      // battery
             .expression("([^,]+)?")              // adc
             .groupBegin()
-            .text(",")
-            .number("d,")                        // extended
-            .expression("([^,]+)?,")             // fuel
-            .expression("([^,]+)?")              // temperature
+            .number(",d+")                       // extended
+            .expression(",([^,]+)?")             // fuel
+            .groupBegin()
+            .expression(",([^,]+)?")             // temperature
             .groupBegin()
             .text(",")
-            .number("(d+)|")                     // rpm
-            .number("(d+)|")                     // engine load
-            .number("d+|")                       // maf flow
-            .number("d+|")                       // intake pressure
-            .number("d+|")                       // intake temperature
-            .number("(d+)|")                     // throttle
-            .number("(d+)|")                     // coolant temperature
-            .number("(d+)|")                     // instant fuel
-            .number("(d+)")                      // fuel level
+            .groupBegin()
+            .number("(d+)?|")                    // rpm
+            .number("(d+)?|")                    // engine load
+            .number("(d+)?|")                    // maf flow
+            .number("(d+)?|")                    // intake pressure
+            .number("(d+)?|")                    // intake temperature
+            .number("(d+)?|")                    // throttle
+            .number("(d+)?|")                    // coolant temperature
+            .number("(d+)?|")                    // instant fuel
+            .number("(d+)[%L]").optional()       // fuel level
+            .groupEnd("?")
+            .number(",(d+)").optional()          // hours
+            .groupEnd("?")
             .groupEnd("?")
             .groupEnd("?")
             .any()
@@ -94,6 +98,8 @@ public class StartekProtocolDecoder extends BaseProtocolDecoder {
 
     private String decodeAlarm(int value) {
         switch (value) {
+            case 1:
+                return Position.ALARM_SOS;
             case 5:
             case 6:
                 return Position.ALARM_DOOR;
@@ -182,6 +188,7 @@ public class StartekProtocolDecoder extends BaseProtocolDecoder {
         int input = parser.nextHexInt();
         int output = parser.nextHexInt();
         position.set(Position.KEY_IGNITION, BitUtil.check(input, 1));
+        position.set(Position.KEY_DOOR, BitUtil.check(input, 2));
         position.set(Position.KEY_INPUT, input);
         position.set(Position.KEY_OUTPUT, output);
 
@@ -217,15 +224,28 @@ public class StartekProtocolDecoder extends BaseProtocolDecoder {
             }
         }
 
-        if (parser.hasNext(6)) {
+        if (parser.hasNextAny(9)) {
             position.set(Position.KEY_RPM, parser.nextInt());
             position.set(Position.KEY_ENGINE_LOAD, parser.nextInt());
+            position.set("airFlow", parser.nextInt());
+            position.set("airPressure", parser.nextInt());
+            if (parser.hasNext()) {
+                position.set("airTemp", parser.nextInt() - 40);
+            }
             position.set(Position.KEY_THROTTLE, parser.nextInt());
-            position.set(Position.KEY_COOLANT_TEMP, parser.nextInt() - 40);
-            position.set(Position.KEY_FUEL_CONSUMPTION, parser.nextInt() * 0.1);
+            if (parser.hasNext()) {
+                position.set(Position.KEY_COOLANT_TEMP, parser.nextInt() - 40);
+            }
+            if (parser.hasNext()) {
+                position.set(Position.KEY_FUEL_CONSUMPTION, parser.nextInt() * 0.1);
+            }
             position.set(Position.KEY_FUEL_LEVEL, parser.nextInt());
         }
 
+        if (parser.hasNext()) {
+            position.set(Position.KEY_HOURS, parser.nextInt() * 1000L);
+        }
+
         return position;
     }
 
diff --git a/src/main/java/org/traccar/protocol/StbProtocol.java b/src/main/java/org/traccar/protocol/StbProtocol.java
index 002ed86c7..0beaed39c 100644
--- a/src/main/java/org/traccar/protocol/StbProtocol.java
+++ b/src/main/java/org/traccar/protocol/StbProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class StbProtocol extends BaseProtocol {
 
-    public StbProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public StbProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new JsonFrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/StbProtocolDecoder.java b/src/main/java/org/traccar/protocol/StbProtocolDecoder.java
index cc985d605..c52ab485f 100644
--- a/src/main/java/org/traccar/protocol/StbProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/StbProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2021 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,19 +15,16 @@
  */
 package org.traccar.protocol;
 
-import com.fasterxml.jackson.annotation.JsonProperty;
-import com.fasterxml.jackson.core.JsonProcessingException;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.model.Position;
+import org.traccar.session.DeviceSession;
 
-import javax.json.Json;
-import javax.json.JsonObject;
-import javax.json.JsonValue;
+import jakarta.json.Json;
+import jakarta.json.JsonObject;
+import jakarta.json.JsonValue;
 import java.io.StringReader;
 import java.net.SocketAddress;
 import java.util.Date;
@@ -42,29 +39,13 @@ public class StbProtocolDecoder extends BaseProtocolDecoder {
     public static final int MSG_PROPERTY = 310;
     public static final int MSG_ALARM = 410;
 
-    public static class Response {
-        @JsonProperty("msgType")
-        private int type;
-        @JsonProperty("devId")
-        private String deviceId;
-        @JsonProperty("result")
-        private int result;
-        @JsonProperty("txnNo")
-        private String transaction;
-    }
-
     private void sendResponse(
-            Channel channel, SocketAddress remoteAddress, int type, String deviceId, JsonObject root)
-            throws JsonProcessingException {
-
-        Response response = new Response();
-        response.type = type + 1;
-        response.deviceId = deviceId;
-        response.result = 1;
-        response.transaction = root.getString("txnNo");
+            Channel channel, SocketAddress remoteAddress, int type, String deviceId, JsonObject root) {
+        String response = String.format(
+                "{ \"msgType\": %d, \"devId\": \"%s\", \"result\": 1, \"txnNo\": \"%s\" }",
+                type + 1, deviceId, root.getString("txnNo"));
         if (channel != null) {
-            channel.writeAndFlush(new NetworkMessage(
-                    Context.getObjectMapper().writeValueAsString(response), remoteAddress));
+            channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
         }
     }
 
diff --git a/src/main/java/org/traccar/protocol/Stl060Protocol.java b/src/main/java/org/traccar/protocol/Stl060Protocol.java
index 2711e936b..ac23ab3ee 100644
--- a/src/main/java/org/traccar/protocol/Stl060Protocol.java
+++ b/src/main/java/org/traccar/protocol/Stl060Protocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Stl060Protocol extends BaseProtocol {
 
-    public Stl060Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Stl060Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new Stl060FrameDecoder(1024));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/Stl060ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Stl060ProtocolDecoder.java
index 7b0055aa1..dc1fa3ba3 100644
--- a/src/main/java/org/traccar/protocol/Stl060ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Stl060ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/SuntechProtocol.java b/src/main/java/org/traccar/protocol/SuntechProtocol.java
index 199885537..0cc5fc75c 100644
--- a/src/main/java/org/traccar/protocol/SuntechProtocol.java
+++ b/src/main/java/org/traccar/protocol/SuntechProtocol.java
@@ -19,11 +19,15 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class SuntechProtocol extends BaseProtocol {
 
-    public SuntechProtocol() {
+    @Inject
+    public SuntechProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_OUTPUT_CONTROL,
                 Command.TYPE_REBOOT_DEVICE,
@@ -32,9 +36,9 @@ public class SuntechProtocol extends BaseProtocol {
                 Command.TYPE_ENGINE_RESUME,
                 Command.TYPE_ALARM_ARM,
                 Command.TYPE_ALARM_DISARM);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new SuntechFrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new SuntechProtocolEncoder(SuntechProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java b/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
index 8926f427e..86a8bf6fe 100644
--- a/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
@@ -20,8 +20,10 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.config.Keys;
+import org.traccar.helper.BufferUtil;
+import org.traccar.helper.model.AttributeUtil;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
@@ -41,6 +43,7 @@ import java.util.Date;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.TimeZone;
+import java.util.stream.Collectors;
 
 public class SuntechProtocolDecoder extends BaseProtocolDecoder {
 
@@ -72,8 +75,8 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
     }
 
     public int getProtocolType(long deviceId) {
-        return Context.getIdentityManager().lookupAttributeInteger(
-                deviceId, getProtocolName() + ".protocolType", protocolType, false, true);
+        Integer value = AttributeUtil.lookup(getCacheManager(), Keys.PROTOCOL_TYPE, deviceId);
+        return value != null ? value : protocolType;
     }
 
     public void setHbm(boolean hbm) {
@@ -81,8 +84,8 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
     }
 
     public boolean isHbm(long deviceId) {
-        return Context.getIdentityManager().lookupAttributeBoolean(
-                deviceId, getProtocolName() + ".hbm", hbm, false, true);
+        Boolean value = AttributeUtil.lookup(getCacheManager(), Keys.PROTOCOL_HBM, deviceId);
+        return value != null ? value : hbm;
     }
 
     public void setIncludeAdc(boolean includeAdc) {
@@ -90,8 +93,9 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
     }
 
     public boolean isIncludeAdc(long deviceId) {
-        return Context.getIdentityManager().lookupAttributeBoolean(
-                deviceId, getProtocolName() + ".includeAdc", includeAdc, false, true);
+        Boolean value = AttributeUtil.lookup(
+                getCacheManager(), Keys.PROTOCOL_INCLUDE_ADC.withPrefix(getProtocolName()), deviceId);
+        return value != null ? value : includeAdc;
     }
 
     public void setIncludeRpm(boolean includeRpm) {
@@ -99,8 +103,9 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
     }
 
     public boolean isIncludeRpm(long deviceId) {
-        return Context.getIdentityManager().lookupAttributeBoolean(
-                deviceId, getProtocolName() + ".includeRpm", includeRpm, false, true);
+        Boolean value = AttributeUtil.lookup(
+                getCacheManager(), Keys.PROTOCOL_INCLUDE_RPM.withPrefix(getProtocolName()), deviceId);
+        return value != null ? value : includeRpm;
     }
 
     public void setIncludeTemp(boolean includeTemp) {
@@ -108,8 +113,9 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
     }
 
     public boolean isIncludeTemp(long deviceId) {
-        return Context.getIdentityManager().lookupAttributeBoolean(
-                deviceId, getProtocolName() + ".includeTemp", includeTemp, false, true);
+        Boolean value = AttributeUtil.lookup(
+                getCacheManager(), Keys.PROTOCOL_INCLUDE_TEMPERATURE.withPrefix(getProtocolName()), deviceId);
+        return value != null ? value : includeTemp;
     }
 
     private Position decode9(
@@ -198,12 +204,16 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
                 return Position.ALARM_POWER_RESTORED;
             case 41:
                 return Position.ALARM_POWER_CUT;
+            case 42:
+                return Position.ALARM_SOS;
             case 46:
                 return Position.ALARM_ACCELERATION;
             case 47:
                 return Position.ALARM_BRAKING;
             case 50:
                 return Position.ALARM_JAMMING;
+            case 132:
+                return Position.ALARM_DOOR;
             default:
                 return null;
         }
@@ -261,18 +271,26 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
             index += 1; // collaborative network
         }
 
-        DateFormat dateFormat = new SimpleDateFormat("yyyyMMddHH:mm:ss");
-        dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
-        position.setTime(dateFormat.parse(values[index++] + values[index++]));
+        if (values[index].isEmpty()) {
 
-        position.setLatitude(Double.parseDouble(values[index++]));
-        position.setLongitude(Double.parseDouble(values[index++]));
-        position.setSpeed(UnitsConverter.knotsFromKph(Double.parseDouble(values[index++])));
-        position.setCourse(Double.parseDouble(values[index++]));
+            getLastLocation(position, null);
 
-        position.set(Position.KEY_SATELLITES, Integer.parseInt(values[index++]));
+        } else {
 
-        position.setValid(values[index++].equals("1"));
+            DateFormat dateFormat = new SimpleDateFormat("yyyyMMddHH:mm:ss");
+            dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
+            position.setTime(dateFormat.parse(values[index++] + values[index++]));
+
+            position.setLatitude(Double.parseDouble(values[index++]));
+            position.setLongitude(Double.parseDouble(values[index++]));
+            position.setSpeed(UnitsConverter.knotsFromKph(Double.parseDouble(values[index++])));
+            position.setCourse(Double.parseDouble(values[index++]));
+
+            position.set(Position.KEY_SATELLITES, Integer.parseInt(values[index++]));
+
+            position.setValid(values[index++].equals("1"));
+
+        }
 
         return position;
     }
@@ -371,7 +389,7 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
                         }
                     } else if (attribute.startsWith("GTSL")) {
                         position.set(Position.KEY_DRIVER_UNIQUE_ID, attribute.split("\\|")[4]);
-                    } else {
+                    } else if (attribute.contains("=")) {
                         String[] pair = attribute.split("=");
                         if (pair.length >= 2) {
                             String value = pair[1].trim();
@@ -394,6 +412,8 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
                                     break;
                             }
                         }
+                    } else {
+                        position.set("serial", attribute.trim());
                     }
                     remaining -= attribute.length() + 1;
                 }
@@ -461,7 +481,7 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
 
         String type = values[index++];
 
-        if (!type.equals("STT") && !type.equals("ALT") && !type.equals("BLE")) {
+        if (!type.equals("STT") && !type.equals("ALT") && !type.equals("BLE") && !type.equals("RES")) {
             return null;
         }
 
@@ -474,6 +494,14 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
         position.setDeviceId(deviceSession.getDeviceId());
         position.set(Position.KEY_TYPE, type);
 
+        if (type.equals("RES")) {
+            getLastLocation(position, null);
+            position.set(
+                    Position.KEY_RESULT,
+                    Arrays.stream(values, index, values.length).collect(Collectors.joining(";")));
+            return position;
+        }
+
         int mask;
         if (type.equals("BLE")) {
             mask = 0b1100000110110;
@@ -563,7 +591,9 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
             }
 
             if (BitUtil.check(mask, 17)) {
-                position.set(Position.KEY_INPUT, Integer.parseInt(values[index++]));
+                int input = Integer.parseInt(values[index++]);
+                position.set(Position.KEY_IGNITION, BitUtil.check(input, 0));
+                position.set(Position.KEY_INPUT, input);
             }
 
             if (BitUtil.check(mask, 18)) {
@@ -572,7 +602,8 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
 
             if (type.equals("ALT")) {
                 if (BitUtil.check(mask, 19)) {
-                    position.set("alertId", values[index++]);
+                    int alertId = Integer.parseInt(values[index++]);
+                    position.set(Position.KEY_ALARM, decodeAlert(alertId));
                 }
                 if (BitUtil.check(mask, 20)) {
                     position.set("alertModifier", values[index++]);
@@ -667,19 +698,11 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
         }
 
         if (BitUtil.check(mask, 11)) {
-            long value = buf.readUnsignedInt();
-            if (BitUtil.check(value, 31)) {
-                value = -BitUtil.to(value, 31);
-            }
-            position.setLatitude(value / 1000000.0);
+            position.setLatitude(BufferUtil.readSignedMagnitudeInt(buf) / 1000000.0);
         }
 
         if (BitUtil.check(mask, 12)) {
-            long value = buf.readUnsignedInt();
-            if (BitUtil.check(value, 31)) {
-                value = -BitUtil.to(value, 31);
-            }
-            position.setLongitude(value / 1000000.0);
+            position.setLongitude(BufferUtil.readSignedMagnitudeInt(buf) / 1000000.0);
         }
 
         if (BitUtil.check(mask, 13)) {
@@ -841,7 +864,7 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
 
         } else {
 
-            String[] values = buf.toString(StandardCharsets.US_ASCII).split(";");
+            String[] values = buf.toString(StandardCharsets.US_ASCII).split(";", -1);
             prefix = values[0];
 
             if (prefix.equals("CRR")) {
diff --git a/src/main/java/org/traccar/protocol/SuntechProtocolEncoder.java b/src/main/java/org/traccar/protocol/SuntechProtocolEncoder.java
index 597acaae8..a4faacf13 100644
--- a/src/main/java/org/traccar/protocol/SuntechProtocolEncoder.java
+++ b/src/main/java/org/traccar/protocol/SuntechProtocolEncoder.java
@@ -45,13 +45,13 @@ public class SuntechProtocolEncoder extends StringProtocolEncoder {
         }
 
         if (universal) {
-            return encodeUniversalCommand(channel, command);
+            return encodeUniversalCommand(command);
         } else {
-            return encodeLegacyCommand(channel, prefix, command);
+            return encodeLegacyCommand(prefix, command);
         }
     }
 
-    protected Object encodeUniversalCommand(Channel channel, Command command) {
+    protected Object encodeUniversalCommand(Command command) {
         switch (command.getType()) {
             case Command.TYPE_REBOOT_DEVICE:
                 return formatCommand(command, "CMD;%s;03;03\r", Command.KEY_UNIQUE_ID);
@@ -59,23 +59,23 @@ public class SuntechProtocolEncoder extends StringProtocolEncoder {
                 return formatCommand(command, "CMD;%s;03;01\r", Command.KEY_UNIQUE_ID);
             case Command.TYPE_OUTPUT_CONTROL:
                 if (command.getAttributes().get(Command.KEY_DATA).equals("1")) {
-                    switch (command.getString(Command.KEY_INDEX)) {
-                        case "1":
+                    switch (command.getInteger(Command.KEY_INDEX)) {
+                        case 1:
                             return formatCommand(command, "CMD;%s;04;01\r", Command.KEY_UNIQUE_ID);
-                        case "2":
+                        case 2:
                             return formatCommand(command, "CMD;%s;04;03\r", Command.KEY_UNIQUE_ID);
-                        case "3":
+                        case 3:
                             return formatCommand(command, "CMD;%s;04;09\r", Command.KEY_UNIQUE_ID);
                         default:
                             return null;
                     }
                 } else {
-                    switch (command.getString(Command.KEY_INDEX)) {
-                        case "1":
+                    switch (command.getInteger(Command.KEY_INDEX)) {
+                        case 1:
                             return formatCommand(command, "CMD;%s;04;02\r", Command.KEY_UNIQUE_ID);
-                        case "2":
+                        case 2:
                             return formatCommand(command, "CMD;%s;04;04\r", Command.KEY_UNIQUE_ID);
-                        case "3":
+                        case 3:
                             return formatCommand(command, "CMD;%s;04;10\r", Command.KEY_UNIQUE_ID);
                         default:
                             return null;
@@ -84,7 +84,7 @@ public class SuntechProtocolEncoder extends StringProtocolEncoder {
             case Command.TYPE_ENGINE_STOP:
                 return formatCommand(command, "CMD;%s;04;01\r", Command.KEY_UNIQUE_ID);
             case Command.TYPE_ENGINE_RESUME:
-                return formatCommand(command, "CMD;%s;02;02\r", Command.KEY_UNIQUE_ID);
+                return formatCommand(command, "CMD;%s;04;02\r", Command.KEY_UNIQUE_ID);
             case Command.TYPE_ALARM_ARM:
                 return formatCommand(command, "CMD;%s;04;03\r", Command.KEY_UNIQUE_ID);
             case Command.TYPE_ALARM_DISARM:
@@ -94,12 +94,12 @@ public class SuntechProtocolEncoder extends StringProtocolEncoder {
         }
     }
 
-    protected Object encodeLegacyCommand(Channel channel, String prefix, Command command) {
+    protected Object encodeLegacyCommand(String prefix, Command command) {
         switch (command.getType()) {
             case Command.TYPE_REBOOT_DEVICE:
                 return formatCommand(command, prefix + "CMD;%s;02;Reboot\r", Command.KEY_UNIQUE_ID);
             case Command.TYPE_POSITION_SINGLE:
-                return formatCommand(command, prefix + "CMD;%s;02;\r", Command.KEY_UNIQUE_ID);
+                return formatCommand(command, prefix + "CMD;%s;02;StatusReq\r", Command.KEY_UNIQUE_ID);
             case Command.TYPE_OUTPUT_CONTROL:
                 if (command.getAttributes().get(Command.KEY_DATA).equals("1")) {
                     return formatCommand(command, prefix + "CMD;%s;02;Enable%s\r",
diff --git a/src/main/java/org/traccar/protocol/SupermateProtocol.java b/src/main/java/org/traccar/protocol/SupermateProtocol.java
index 46625ddc7..064f12b4b 100644
--- a/src/main/java/org/traccar/protocol/SupermateProtocol.java
+++ b/src/main/java/org/traccar/protocol/SupermateProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class SupermateProtocol extends BaseProtocol {
 
-    public SupermateProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public SupermateProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, "#"));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/SupermateProtocolDecoder.java b/src/main/java/org/traccar/protocol/SupermateProtocolDecoder.java
index 40a25bb91..f53f0f598 100644
--- a/src/main/java/org/traccar/protocol/SupermateProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SupermateProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/SviasProtocol.java b/src/main/java/org/traccar/protocol/SviasProtocol.java
index accfa173f..a903d503c 100644
--- a/src/main/java/org/traccar/protocol/SviasProtocol.java
+++ b/src/main/java/org/traccar/protocol/SviasProtocol.java
@@ -21,12 +21,15 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
-
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class SviasProtocol extends BaseProtocol {
 
-    public SviasProtocol() {
+    @Inject
+    public SviasProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM,
                 Command.TYPE_POSITION_SINGLE,
@@ -36,9 +39,9 @@ public class SviasProtocol extends BaseProtocol {
                 Command.TYPE_ALARM_ARM,
                 Command.TYPE_ALARM_DISARM,
                 Command.TYPE_ALARM_REMOVE);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, "]"));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/SviasProtocolDecoder.java b/src/main/java/org/traccar/protocol/SviasProtocolDecoder.java
index 7e783f6cd..d7b126167 100644
--- a/src/main/java/org/traccar/protocol/SviasProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SviasProtocolDecoder.java
@@ -24,7 +24,7 @@ import org.traccar.helper.PatternBuilder;
 
 import java.net.SocketAddress;
 import java.util.regex.Pattern;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.helper.Parser;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/SwiftechProtocol.java b/src/main/java/org/traccar/protocol/SwiftechProtocol.java
index 5e2597b93..d5fa5c5d3 100644
--- a/src/main/java/org/traccar/protocol/SwiftechProtocol.java
+++ b/src/main/java/org/traccar/protocol/SwiftechProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class SwiftechProtocol extends BaseProtocol {
 
-    public SwiftechProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public SwiftechProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '#'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/SwiftechProtocolDecoder.java b/src/main/java/org/traccar/protocol/SwiftechProtocolDecoder.java
index 8d0b31c8f..b1cff8b64 100644
--- a/src/main/java/org/traccar/protocol/SwiftechProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SwiftechProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/T55Protocol.java b/src/main/java/org/traccar/protocol/T55Protocol.java
index f5ec19094..e76959fea 100644
--- a/src/main/java/org/traccar/protocol/T55Protocol.java
+++ b/src/main/java/org/traccar/protocol/T55Protocol.java
@@ -21,22 +21,26 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class T55Protocol extends BaseProtocol {
 
-    public T55Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public T55Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new T55ProtocolDecoder(T55Protocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new T55ProtocolDecoder(T55Protocol.this));
diff --git a/src/main/java/org/traccar/protocol/T55ProtocolDecoder.java b/src/main/java/org/traccar/protocol/T55ProtocolDecoder.java
index 230d29216..b18359b3f 100644
--- a/src/main/java/org/traccar/protocol/T55ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/T55ProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,8 +17,9 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.config.Keys;
+import org.traccar.helper.model.AttributeUtil;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
@@ -27,6 +28,7 @@ import org.traccar.helper.PatternBuilder;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
 
+import java.net.InetSocketAddress;
 import java.net.SocketAddress;
 import java.nio.channels.DatagramChannel;
 import java.util.Date;
@@ -124,15 +126,53 @@ public class T55ProtocolDecoder extends BaseProtocolDecoder {
             .expression("([01])")                // ignition
             .compile();
 
+    private static final Pattern PATTERN_PUBX = new PatternBuilder()
+            .text("$PUBX,")
+            .number("(d+),")                     // index
+            .number("(dd)(dd)(dd).d+,")          // time (hhmmss)
+            .number("(dd)(dd.d+),([NS]),")       // latitude
+            .number("(ddd)(dd.d+),([EW]),")      // longitude
+            .number("(-?d+.d+),")                // altitude
+            .expression("(..),")                 // status
+            .number("(d+.d+),")                  // horizontal accuracy
+            .number("d+.d+,")                    // vertical accuracy
+            .number("(d+.d+),")                  // speed
+            .number("(d+.d+),")                  // course
+            .number("-?d+.d+,")                  // vertical velocity
+            .expression("[^,]*,")                // corrections age
+            .number("(d+.d+),")                  // hdop
+            .number("(d+.d+),")                  // vdop
+            .number("d+.d+,")                    // tdop
+            .number("(d+),")                     // satellites
+            .number("(d+),")                     // device id
+            .number("d+")
+            .text("*")
+            .number("xx")                        // checksum
+            .compile();
+
+    private static final Pattern PATTERN_GPTXT = new PatternBuilder()
+            .text("$GPTXT,")
+            .text("NET,")
+            .number("(d+),")                     // device id
+            .expression("([^,]+),")              // network operator
+            .number("(-d+),")                    // rssi
+            .number("(d+) ")                     // mcc
+            .number("(d+)")                      // mnc
+            .text("*")
+            .number("xx")                        // checksum
+            .compile();
+
     private Position position = null;
 
     private Position decodeGprmc(
             DeviceSession deviceSession, String sentence, SocketAddress remoteAddress, Channel channel) {
 
-        if (deviceSession != null && channel != null && !(channel instanceof DatagramChannel)
-                && Context.getIdentityManager().lookupAttributeBoolean(
-                        deviceSession.getDeviceId(), getProtocolName() + ".ack", false, false, true)) {
-            channel.writeAndFlush(new NetworkMessage("OK1\r\n", remoteAddress));
+        if (deviceSession != null && channel != null && !(channel instanceof DatagramChannel)) {
+            boolean ack = AttributeUtil.lookup(
+                    getCacheManager(), Keys.PROTOCOL_ACK.withPrefix(getProtocolName()), deviceSession.getDeviceId());
+            if (ack) {
+                channel.writeAndFlush(new NetworkMessage("OK1\r\n", remoteAddress));
+            }
         }
 
         Parser parser = new Parser(PATTERN_GPRMC, sentence);
@@ -300,11 +340,69 @@ public class T55ProtocolDecoder extends BaseProtocolDecoder {
         return position;
     }
 
+    private Position decodeGptxt(Channel channel, SocketAddress remoteAddress, String sentence) {
+
+        Parser parser = new Parser(PATTERN_GPTXT, sentence);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+        if (deviceSession == null) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        getLastLocation(position, null);
+
+        position.set(Position.KEY_OPERATOR, parser.next());
+        position.set(Position.KEY_RSSI, parser.nextInt());
+        position.set("mcc", parser.nextInt());
+        position.set("mnc", parser.nextInt());
+
+        return position;
+    }
+
+    private Position decodePubx(Channel channel, SocketAddress remoteAddress, String sentence) {
+
+        Parser parser = new Parser(PATTERN_PUBX, sentence);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+
+        position.set(Position.KEY_INDEX, parser.nextInt());
+
+        position.setTime(parser.nextDateTime(Parser.DateTimeFormat.HMS));
+        position.setLatitude(parser.nextCoordinate());
+        position.setLongitude(parser.nextCoordinate());
+        position.setAltitude(parser.nextDouble());
+        position.setValid(!parser.next().equals("NF"));
+        position.setAccuracy(parser.nextDouble());
+        position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble()));
+        position.setCourse(parser.nextDouble());
+
+        position.set(Position.KEY_HDOP, parser.nextDouble());
+        position.set(Position.KEY_VDOP, parser.nextDouble());
+        position.set(Position.KEY_SATELLITES, parser.nextInt());
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+        if (deviceSession != null) {
+            position.setDeviceId(deviceSession.getDeviceId());
+            return position;
+        }
+
+        return null;
+    }
+
     @Override
     protected Object decode(
             Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
 
-        String sentence = (String) msg;
+        String sentence = ((String) msg).trim();
 
         DeviceSession deviceSession;
 
@@ -320,6 +418,10 @@ public class T55ProtocolDecoder extends BaseProtocolDecoder {
             sentence = sentence.substring(index);
         } else {
             deviceSession = getDeviceSession(channel, remoteAddress);
+            if (deviceSession == null && remoteAddress instanceof InetSocketAddress) {
+                String host = ((InetSocketAddress) remoteAddress).getHostString();
+                deviceSession = getDeviceSession(channel, remoteAddress, host);
+            }
         }
 
         if (sentence.startsWith("$PGID")) {
@@ -354,6 +456,10 @@ public class T55ProtocolDecoder extends BaseProtocolDecoder {
             return decodeGpiop(deviceSession, sentence);
         } else if (sentence.startsWith("QZE")) {
             return decodeQze(channel, remoteAddress, sentence);
+        } else if (sentence.startsWith("$PUBX")) {
+            return decodePubx(channel, remoteAddress, sentence);
+        } else if (sentence.startsWith("$GPTXT")) {
+            return decodeGptxt(channel, remoteAddress, sentence);
         }
 
         return null;
diff --git a/src/main/java/org/traccar/protocol/T57Protocol.java b/src/main/java/org/traccar/protocol/T57Protocol.java
index f67f82318..e6ef4ccc9 100644
--- a/src/main/java/org/traccar/protocol/T57Protocol.java
+++ b/src/main/java/org/traccar/protocol/T57Protocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class T57Protocol extends BaseProtocol {
 
-    public T57Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public T57Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new T57FrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/T57ProtocolDecoder.java b/src/main/java/org/traccar/protocol/T57ProtocolDecoder.java
index 2a3cca3e4..d9fd1c8cf 100644
--- a/src/main/java/org/traccar/protocol/T57ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/T57ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/T622IridiumProtocol.java b/src/main/java/org/traccar/protocol/T622IridiumProtocol.java
new file mode 100644
index 000000000..22efa38a8
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/T622IridiumProtocol.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
+import org.traccar.BaseProtocol;
+import org.traccar.PipelineBuilder;
+import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
+
+public class T622IridiumProtocol extends BaseProtocol {
+
+    @Inject
+    public T622IridiumProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
+            @Override
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
+                pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 1, 2));
+                pipeline.addLast(new T622IridiumProtocolDecoder(T622IridiumProtocol.this));
+            }
+        });
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/T622IridiumProtocolDecoder.java b/src/main/java/org/traccar/protocol/T622IridiumProtocolDecoder.java
new file mode 100644
index 000000000..9e64ec9be
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/T622IridiumProtocolDecoder.java
@@ -0,0 +1,149 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.Protocol;
+import org.traccar.config.Keys;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.helper.model.AttributeUtil;
+import org.traccar.model.Position;
+import org.traccar.session.DeviceSession;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.Arrays;
+import java.util.Date;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class T622IridiumProtocolDecoder extends BaseProtocolDecoder {
+
+    private String format;
+
+    public T622IridiumProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    public List<Integer> getParameters(long deviceId) {
+        String value = AttributeUtil.lookup(
+                getCacheManager(), Keys.PROTOCOL_FORMAT.withPrefix(getProtocolName()), deviceId);
+        return Arrays.stream((value != null ? value : format).split(","))
+                .map(s -> Integer.parseInt(s, 16))
+                .collect(Collectors.toList());
+    }
+
+    public void setFormat(String format) {
+        this.format = format;
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        ByteBuf buf = (ByteBuf) msg;
+
+        buf.readUnsignedByte(); // protocol revision
+        buf.readUnsignedShort(); // length
+        buf.readUnsignedByte(); // header indicator
+        buf.readUnsignedShort(); // header length
+        buf.readUnsignedInt(); // reference
+
+        String imei = buf.readCharSequence(15, StandardCharsets.US_ASCII).toString();
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
+        if (deviceSession == null) {
+            return null;
+        }
+
+        buf.readUnsignedByte(); // session status
+        buf.readUnsignedShort(); // originator index
+        buf.readUnsignedShort(); // transfer index
+        buf.readUnsignedInt(); // session time
+        buf.readUnsignedByte(); // payload indicator
+        buf.readUnsignedShort(); // payload length
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        List<Integer> parameters = getParameters(deviceSession.getDeviceId());
+
+        for (int parameter : parameters) {
+            switch (parameter) {
+                case 0x01:
+                    position.set(Position.KEY_EVENT, buf.readUnsignedByte());
+                    break;
+                case 0x02:
+                    position.setLatitude(buf.readIntLE() / 1000000.0);
+                    break;
+                case 0x03:
+                    position.setLongitude(buf.readIntLE() / 1000000.0);
+                    break;
+                case 0x04:
+                    position.setTime(new Date((buf.readUnsignedIntLE() + 946684800) * 1000));
+                    break;
+                case 0x05:
+                    position.setValid(buf.readUnsignedByte() > 0);
+                    break;
+                case 0x06:
+                    position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+                    break;
+                case 0x07:
+                    position.set(Position.KEY_RSSI, buf.readUnsignedByte());
+                    break;
+                case 0x08:
+                    position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShortLE()));
+                    break;
+                case 0x09:
+                    position.setCourse(buf.readUnsignedShortLE());
+                    break;
+                case 0x0A:
+                    position.set(Position.KEY_HDOP, buf.readUnsignedByte() * 0.1);
+                    break;
+                case 0x0B:
+                    position.setAltitude(buf.readShortLE());
+                    break;
+                case 0x0C:
+                    position.set(Position.KEY_ODOMETER, buf.readUnsignedIntLE());
+                    break;
+                case 0x0D:
+                    position.set(Position.KEY_HOURS, buf.readUnsignedIntLE() * 1000);
+                    break;
+                case 0x14:
+                    position.set(Position.KEY_OUTPUT, buf.readUnsignedByte());
+                    break;
+                case 0x15:
+                    position.set(Position.KEY_INPUT, buf.readUnsignedByte());
+                    break;
+                case 0x19:
+                    position.set(Position.KEY_BATTERY, buf.readUnsignedShortLE() * 0.01);
+                    break;
+                case 0x1A:
+                    position.set(Position.KEY_POWER, buf.readUnsignedShortLE() * 0.01);
+                    break;
+                case 0x1B:
+                    buf.readUnsignedByte(); // geofence
+                    break;
+                default:
+                    break;
+            }
+        }
+
+        return position;
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/T800xProtocol.java b/src/main/java/org/traccar/protocol/T800xProtocol.java
index 8b91265cb..f50f22a18 100644
--- a/src/main/java/org/traccar/protocol/T800xProtocol.java
+++ b/src/main/java/org/traccar/protocol/T800xProtocol.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,21 +19,32 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class T800xProtocol extends BaseProtocol {
 
-    public T800xProtocol() {
+    @Inject
+    public T800xProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 3, 2, -5, 0));
                 pipeline.addLast(new T800xProtocolEncoder(T800xProtocol.this));
                 pipeline.addLast(new T800xProtocolDecoder(T800xProtocol.this));
             }
         });
+        addServer(new TrackerServer(config, getName(), true) {
+            @Override
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
+                pipeline.addLast(new T800xProtocolEncoder(T800xProtocol.this));
+                pipeline.addLast(new T800xProtocolDecoder(T800xProtocol.this));
+            }
+        });
     }
 
 }
diff --git a/src/main/java/org/traccar/protocol/T800xProtocolDecoder.java b/src/main/java/org/traccar/protocol/T800xProtocolDecoder.java
index d554c2999..4ddea730c 100644
--- a/src/main/java/org/traccar/protocol/T800xProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/T800xProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,7 +20,9 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.config.Keys;
+import org.traccar.helper.model.AttributeUtil;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
@@ -58,6 +60,7 @@ public class T800xProtocolDecoder extends BaseProtocolDecoder {
     public static final int MSG_DRIVER_BEHAVIOR_1 = 0x05; // 0x2626
     public static final int MSG_DRIVER_BEHAVIOR_2 = 0x06; // 0x2626
     public static final int MSG_BLE = 0x10;
+    public static final int MSG_NETWORK_2 = 0x11;
     public static final int MSG_GPS_2 = 0x13;
     public static final int MSG_ALARM_2 = 0x14;
     public static final int MSG_COMMAND = 0x81;
@@ -167,7 +170,7 @@ public class T800xProtocolDecoder extends BaseProtocolDecoder {
 
             return decodePosition(channel, deviceSession, buf, type, index, imei);
 
-        } else if (type == MSG_NETWORK && header == 0x2727) {
+        } else if (type == MSG_NETWORK && header == 0x2727 || type == MSG_NETWORK_2) {
 
             Position position = new Position(getProtocolName());
             position.setDeviceId(deviceSession.getDeviceId());
@@ -397,6 +400,7 @@ public class T800xProtocolDecoder extends BaseProtocolDecoder {
 
         int alarm = buf.readUnsignedByte();
         position.set(Position.KEY_ALARM, header != 0x2727 ? decodeAlarm1(alarm) : decodeAlarm2(alarm));
+        position.set("alarmCode", alarm);
 
         if (header != 0x2727) {
 
@@ -467,6 +471,7 @@ public class T800xProtocolDecoder extends BaseProtocolDecoder {
             int inputStatus = buf.readUnsignedShort();
             position.set(Position.KEY_IGNITION, BitUtil.check(inputStatus, 2));
             position.set(Position.KEY_RSSI, BitUtil.between(inputStatus, 4, 11));
+            position.set(Position.KEY_INPUT, inputStatus);
 
             buf.readUnsignedShort(); // ignition on upload interval
             buf.readUnsignedInt(); // ignition off upload interval
@@ -510,7 +515,9 @@ public class T800xProtocolDecoder extends BaseProtocolDecoder {
             }
         }
 
-        if (type == MSG_ALARM || type == MSG_ALARM_2) {
+        boolean acknowledgement = AttributeUtil.lookup(
+                getCacheManager(), Keys.PROTOCOL_ACK.withPrefix(getProtocolName()), deviceSession.getDeviceId());
+        if (acknowledgement || type == MSG_ALARM || type == MSG_ALARM_2) {
             sendResponse(channel, header, type, index, imei, alarm);
         }
 
diff --git a/src/main/java/org/traccar/protocol/TaipPrefixEncoder.java b/src/main/java/org/traccar/protocol/TaipPrefixEncoder.java
index 02c111b01..48419af2a 100644
--- a/src/main/java/org/traccar/protocol/TaipPrefixEncoder.java
+++ b/src/main/java/org/traccar/protocol/TaipPrefixEncoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2021 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,13 +15,14 @@
  */
 package org.traccar.protocol;
 
+import com.google.inject.Inject;
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.ChannelHandler;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.handler.codec.MessageToMessageEncoder;
-import org.traccar.Context;
 import org.traccar.Protocol;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 
 import java.util.List;
@@ -30,14 +31,20 @@ import java.util.List;
 public class TaipPrefixEncoder extends MessageToMessageEncoder<ByteBuf> {
 
     private final Protocol protocol;
+    private Config config;
 
     public TaipPrefixEncoder(Protocol protocol) {
         this.protocol = protocol;
     }
 
+    @Inject
+    public void setConfig(Config config) {
+        this.config = config;
+    }
+
     @Override
-    protected void encode(ChannelHandlerContext ctx, ByteBuf msg, List<Object> out) throws Exception {
-        if (Context.getConfig().getBoolean(Keys.PROTOCOL_PREFIX.withPrefix(protocol.getName()))) {
+    protected void encode(ChannelHandlerContext ctx, ByteBuf msg, List<Object> out) {
+        if (config.getBoolean(Keys.PROTOCOL_PREFIX.withPrefix(protocol.getName()))) {
             out.add(Unpooled.wrappedBuffer(Unpooled.wrappedBuffer(new byte[] {0x20, 0x20, 0x06, 0x00}), msg.retain()));
         } else {
             out.add(msg.retain());
diff --git a/src/main/java/org/traccar/protocol/TaipProtocol.java b/src/main/java/org/traccar/protocol/TaipProtocol.java
index 0966cfd7c..71ab485ca 100644
--- a/src/main/java/org/traccar/protocol/TaipProtocol.java
+++ b/src/main/java/org/traccar/protocol/TaipProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class TaipProtocol extends BaseProtocol {
 
-    public TaipProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public TaipProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '<'));
                 pipeline.addLast(new TaipPrefixEncoder(TaipProtocol.this));
                 pipeline.addLast(new StringDecoder());
@@ -35,9 +39,9 @@ public class TaipProtocol extends BaseProtocol {
                 pipeline.addLast(new TaipProtocolDecoder(TaipProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new TaipPrefixEncoder(TaipProtocol.this));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/TaipProtocolDecoder.java b/src/main/java/org/traccar/protocol/TaipProtocolDecoder.java
index ec0ce1931..787ed1599 100644
--- a/src/main/java/org/traccar/protocol/TaipProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TaipProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -26,7 +26,6 @@ import org.traccar.helper.DateBuilder;
 import org.traccar.helper.DateUtil;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
-import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
 
 import java.net.SocketAddress;
@@ -192,7 +191,7 @@ public class TaipProtocolDecoder extends BaseProtocolDecoder {
             position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG_MIN));
         }
 
-        position.setSpeed(UnitsConverter.knotsFromMph(parser.nextDouble(0)));
+        position.setSpeed(convertSpeed(parser.nextDouble(0), "mph"));
         position.setCourse(parser.nextDouble(0));
 
         if (parser.hasNext(2)) {
diff --git a/src/main/java/org/traccar/protocol/TechTltProtocol.java b/src/main/java/org/traccar/protocol/TechTltProtocol.java
index 0cffb452d..a4a7460b0 100644
--- a/src/main/java/org/traccar/protocol/TechTltProtocol.java
+++ b/src/main/java/org/traccar/protocol/TechTltProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class TechTltProtocol extends BaseProtocol {
 
-    public TechTltProtocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public TechTltProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new TechTltProtocolDecoder(TechTltProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/TechTltProtocolDecoder.java b/src/main/java/org/traccar/protocol/TechTltProtocolDecoder.java
index 17f5c80fa..94efacc63 100644
--- a/src/main/java/org/traccar/protocol/TechTltProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TechTltProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
@@ -110,7 +110,7 @@ public class TechTltProtocolDecoder extends BaseProtocolDecoder {
 
         position.set(Position.KEY_SATELLITES, parser.nextInt());
 
-        position.setNetwork(new Network(CellTower.fromLacCid(parser.nextInt(), parser.nextInt())));
+        position.setNetwork(new Network(CellTower.fromLacCid(getConfig(), parser.nextInt(), parser.nextInt())));
 
         return position;
     }
diff --git a/src/main/java/org/traccar/protocol/TechtoCruzProtocol.java b/src/main/java/org/traccar/protocol/TechtoCruzProtocol.java
index a217ea738..f0828a99e 100644
--- a/src/main/java/org/traccar/protocol/TechtoCruzProtocol.java
+++ b/src/main/java/org/traccar/protocol/TechtoCruzProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class TechtoCruzProtocol extends BaseProtocol {
 
-    public TechtoCruzProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public TechtoCruzProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new TechtoCruzFrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/TechtoCruzProtocolDecoder.java b/src/main/java/org/traccar/protocol/TechtoCruzProtocolDecoder.java
index 6b9f0edb6..09efcb7d4 100644
--- a/src/main/java/org/traccar/protocol/TechtoCruzProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TechtoCruzProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/TekProtocol.java b/src/main/java/org/traccar/protocol/TekProtocol.java
index c1d78e6f5..56714041b 100644
--- a/src/main/java/org/traccar/protocol/TekProtocol.java
+++ b/src/main/java/org/traccar/protocol/TekProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class TekProtocol extends BaseProtocol {
 
-    public TekProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public TekProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new TekFrameDecoder());
                 pipeline.addLast(new TekProtocolDecoder(TekProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/TekProtocolDecoder.java b/src/main/java/org/traccar/protocol/TekProtocolDecoder.java
index 33ff51d2d..819c7e819 100644
--- a/src/main/java/org/traccar/protocol/TekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TekProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/TelemaxProtocol.java b/src/main/java/org/traccar/protocol/TelemaxProtocol.java
index 838da9df1..792a5b176 100644
--- a/src/main/java/org/traccar/protocol/TelemaxProtocol.java
+++ b/src/main/java/org/traccar/protocol/TelemaxProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class TelemaxProtocol extends BaseProtocol {
 
-    public TelemaxProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public TelemaxProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/TelemaxProtocolDecoder.java b/src/main/java/org/traccar/protocol/TelemaxProtocolDecoder.java
index 9369ab101..f6f6f5379 100644
--- a/src/main/java/org/traccar/protocol/TelemaxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TelemaxProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/TelicProtocol.java b/src/main/java/org/traccar/protocol/TelicProtocol.java
index 991befa19..fc5bdf0d1 100644
--- a/src/main/java/org/traccar/protocol/TelicProtocol.java
+++ b/src/main/java/org/traccar/protocol/TelicProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class TelicProtocol extends BaseProtocol {
 
-    public TelicProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public TelicProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new TelicFrameDecoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/TelicProtocolDecoder.java b/src/main/java/org/traccar/protocol/TelicProtocolDecoder.java
index a4f9e2989..9681dc565 100644
--- a/src/main/java/org/traccar/protocol/TelicProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TelicProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/TeltonikaFrameDecoder.java b/src/main/java/org/traccar/protocol/TeltonikaFrameDecoder.java
index c30fee6e3..3a0962584 100644
--- a/src/main/java/org/traccar/protocol/TeltonikaFrameDecoder.java
+++ b/src/main/java/org/traccar/protocol/TeltonikaFrameDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2013 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -30,7 +30,7 @@ public class TeltonikaFrameDecoder extends BaseFrameDecoder {
             ChannelHandlerContext ctx, Channel channel, ByteBuf buf) throws Exception {
 
         while (buf.isReadable() && buf.getByte(buf.readerIndex()) == (byte) 0xff) {
-            buf.skipBytes(1);
+            return buf.readRetainedSlice(1);
         }
 
         if (buf.readableBytes() < MESSAGE_MINIMUM_LENGTH) {
diff --git a/src/main/java/org/traccar/protocol/TeltonikaProtocol.java b/src/main/java/org/traccar/protocol/TeltonikaProtocol.java
index 5817b86be..f2d610251 100644
--- a/src/main/java/org/traccar/protocol/TeltonikaProtocol.java
+++ b/src/main/java/org/traccar/protocol/TeltonikaProtocol.java
@@ -18,24 +18,28 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class TeltonikaProtocol extends BaseProtocol {
 
-    public TeltonikaProtocol() {
+    @Inject
+    public TeltonikaProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new TeltonikaFrameDecoder());
                 pipeline.addLast(new TeltonikaProtocolEncoder(TeltonikaProtocol.this));
                 pipeline.addLast(new TeltonikaProtocolDecoder(TeltonikaProtocol.this, false));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new TeltonikaProtocolEncoder(TeltonikaProtocol.this));
                 pipeline.addLast(new TeltonikaProtocolDecoder(TeltonikaProtocol.this, true));
             }
diff --git a/src/main/java/org/traccar/protocol/TeltonikaProtocolDecoder.java b/src/main/java/org/traccar/protocol/TeltonikaProtocolDecoder.java
index f83a49941..e888642b4 100644
--- a/src/main/java/org/traccar/protocol/TeltonikaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TeltonikaProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2013 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,8 +20,9 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.helper.BufferUtil;
+import org.traccar.model.Device;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
@@ -39,11 +40,15 @@ import java.util.HashMap;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
+import java.util.function.BiConsumer;
 
 public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
 
     private static final int IMAGE_PACKET_MAX = 2048;
 
+    private static final Map<Integer, Map<Set<String>, BiConsumer<Position, ByteBuf>>> PARAMETERS = new HashMap<>();
+
     private final boolean connectionless;
     private boolean extended;
     private final Map<Long, ByteBuf> photos = new HashMap<>();
@@ -55,7 +60,11 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
     public TeltonikaProtocolDecoder(Protocol protocol, boolean connectionless) {
         super(protocol);
         this.connectionless = connectionless;
-        this.extended = Context.getConfig().getBoolean(Keys.PROTOCOL_EXTENDED.withPrefix(getProtocolName()));
+    }
+
+    @Override
+    protected void init() {
+        this.extended = getConfig().getBoolean(Keys.PROTOCOL_EXTENDED.withPrefix(getProtocolName()));
     }
 
     private void parseIdentification(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
@@ -104,19 +113,8 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
         }
     }
 
-    private boolean isPrintable(ByteBuf buf, int length) {
-        boolean printable = true;
-        for (int i = 0; i < length; i++) {
-            byte b = buf.getByte(buf.readerIndex() + i);
-            if (b < 32 && b != '\r' && b != '\n') {
-                printable = false;
-                break;
-            }
-        }
-        return printable;
-    }
-
-    private void decodeSerial(Channel channel, SocketAddress remoteAddress, Position position, ByteBuf buf) {
+    private void decodeSerial(
+            Channel channel, SocketAddress remoteAddress, DeviceSession deviceSession, Position position, ByteBuf buf) {
 
         getLastLocation(position, null);
 
@@ -145,10 +143,9 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
                             channel, remoteAddress, photoId,
                             photo.writerIndex(), Math.min(IMAGE_PACKET_MAX, photo.writableBytes()));
                 } else {
-                    String uniqueId = Context.getIdentityManager().getById(position.getDeviceId()).getUniqueId();
                     photos.remove(photoId);
                     try {
-                        position.set(Position.KEY_IMAGE, Context.getMediaManager().writeFile(uniqueId, photo, "jpg"));
+                        position.set(Position.KEY_IMAGE, writeMediaFile(deviceSession.getUniqueId(), photo, "jpg"));
                     } finally {
                         photo.release();
                     }
@@ -161,7 +158,7 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
             position.set(Position.KEY_TYPE, type);
 
             int length = buf.readInt();
-            if (isPrintable(buf, length)) {
+            if (BufferUtil.isPrintable(buf, length)) {
                 String data = buf.readSlice(length).toString(StandardCharsets.US_ASCII).trim();
                 if (data.startsWith("UUUUww") && data.endsWith("SSS")) {
                     String[] values = data.substring(6, data.length() - 4).split(";");
@@ -181,191 +178,229 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
         }
     }
 
-    private long readValue(ByteBuf buf, int length, boolean signed) {
+    private long readValue(ByteBuf buf, int length) {
         switch (length) {
             case 1:
-                return signed ? buf.readByte() : buf.readUnsignedByte();
+                return buf.readUnsignedByte();
             case 2:
-                return signed ? buf.readShort() : buf.readUnsignedShort();
+                return buf.readUnsignedShort();
             case 4:
-                return signed ? buf.readInt() : buf.readUnsignedInt();
+                return buf.readUnsignedInt();
             default:
                 return buf.readLong();
         }
     }
 
-    private void decodeOtherParameter(Position position, int id, ByteBuf buf, int length) {
-        switch (id) {
-            case 1:
-            case 2:
-            case 3:
-            case 4:
-                position.set("di" + id, readValue(buf, length, false));
-                break;
-            case 9:
-                position.set(Position.PREFIX_ADC + 1, readValue(buf, length, false));
-                break;
-            case 10:
-                position.set(Position.PREFIX_ADC + 2, readValue(buf, length, false));
-                break;
-            case 16:
-                position.set(Position.KEY_ODOMETER, readValue(buf, length, false));
-                break;
-            case 17:
-                position.set("axisX", readValue(buf, length, true));
-                break;
-            case 18:
-                position.set("axisY", readValue(buf, length, true));
-                break;
-            case 19:
-                position.set("axisZ", readValue(buf, length, true));
-                break;
-            case 21:
-                position.set(Position.KEY_RSSI, readValue(buf, length, false));
-                break;
-            case 25:
-            case 26:
-            case 27:
-            case 28:
-                position.set(Position.PREFIX_TEMP + (id - 24 + 4), readValue(buf, length, true) * 0.1);
-                break;
-            case 66:
-                position.set(Position.KEY_POWER, readValue(buf, length, false) * 0.001);
-                break;
-            case 67:
-                position.set(Position.KEY_BATTERY, readValue(buf, length, false) * 0.001);
-                break;
-            case 72:
-            case 73:
-            case 74:
-                position.set(Position.PREFIX_TEMP + (id - 71), readValue(buf, length, true) * 0.1);
-                break;
-            case 78:
-                long driverUniqueId = readValue(buf, length, false);
-                if (driverUniqueId != 0) {
-                    position.set(Position.KEY_DRIVER_UNIQUE_ID, String.format("%016X", driverUniqueId));
-                }
-                break;
-            case 80:
-                position.set("workMode", readValue(buf, length, false));
-                break;
-            case 90:
-                position.set(Position.KEY_DOOR, readValue(buf, length, false));
-                break;
-            case 115:
-                position.set(Position.KEY_COOLANT_TEMP, readValue(buf, length, true) * 0.1);
-                break;
-            case 179:
-                position.set(Position.PREFIX_OUT + 1, readValue(buf, length, false) == 1);
-                break;
-            case 180:
-                position.set(Position.PREFIX_OUT + 2, readValue(buf, length, false) == 1);
-                break;
-            case 181:
-                position.set(Position.KEY_PDOP, readValue(buf, length, false) * 0.1);
-                break;
-            case 182:
-                position.set(Position.KEY_HDOP, readValue(buf, length, false) * 0.1);
-                break;
-            case 199:
-                position.set(Position.KEY_ODOMETER_TRIP, readValue(buf, length, false));
-                break;
-            case 236:
-                if (readValue(buf, length, false) == 1) {
-                    position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
-                }
-                break;
-            case 239:
-                position.set(Position.KEY_IGNITION, readValue(buf, length, false) == 1);
-                break;
-            case 240:
-                position.set(Position.KEY_MOTION, readValue(buf, length, false) == 1);
-                break;
-            case 241:
-                position.set(Position.KEY_OPERATOR, readValue(buf, length, false));
-                break;
-            case 253:
-                switch ((int) readValue(buf, length, false)) {
-                    case 1:
-                        position.set(Position.KEY_ALARM, Position.ALARM_ACCELERATION);
-                        break;
-                    case 2:
-                        position.set(Position.KEY_ALARM, Position.ALARM_BRAKING);
-                        break;
-                    case 3:
-                        position.set(Position.KEY_ALARM, Position.ALARM_CORNERING);
-                        break;
-                    default:
-                        break;
-                }
-                break;
-            default:
-                position.set(Position.PREFIX_IO + id, readValue(buf, length, false));
-                break;
-        }
+    private static void register(int id, Set<String> models, BiConsumer<Position, ByteBuf> handler) {
+        PARAMETERS.computeIfAbsent(id, key -> new HashMap<>()).put(models, handler);
+    }
+
+    static {
+        var fmbXXX = Set.of(
+                "FMB001", "FMB010", "FMB002", "FMB020", "FMB003", "FMB110", "FMB120", "FMB122", "FMB125", "FMB130",
+                "FMB140", "FMU125", "FMB900", "FMB920", "FMB962", "FMB964", "FM3001", "FMB202", "FMB204", "FMB206",
+                "FMT100", "MTB100", "FMP100", "MSP500");
+
+        register(1, null, (p, b) -> p.set(Position.PREFIX_IN + 1, b.readUnsignedByte() > 0));
+        register(2, null, (p, b) -> p.set(Position.PREFIX_IN + 2, b.readUnsignedByte() > 0));
+        register(3, null, (p, b) -> p.set(Position.PREFIX_IN + 3, b.readUnsignedByte() > 0));
+        register(4, null, (p, b) -> p.set(Position.PREFIX_IN + 4, b.readUnsignedByte() > 0));
+        register(9, fmbXXX, (p, b) -> p.set(Position.PREFIX_ADC + 1, b.readUnsignedShort() * 0.001));
+        register(10, fmbXXX, (p, b) -> p.set(Position.PREFIX_ADC + 2, b.readUnsignedShort() * 0.001));
+        register(11, fmbXXX, (p, b) -> p.set(Position.KEY_ICCID, String.valueOf(b.readLong())));
+        register(12, fmbXXX, (p, b) -> p.set(Position.KEY_FUEL_USED, b.readUnsignedInt() * 0.001));
+        register(13, fmbXXX, (p, b) -> p.set(Position.KEY_FUEL_CONSUMPTION, b.readUnsignedShort() * 0.01));
+        register(16, null, (p, b) -> p.set(Position.KEY_ODOMETER, b.readUnsignedInt()));
+        register(17, null, (p, b) -> p.set("axisX", b.readShort()));
+        register(18, null, (p, b) -> p.set("axisY", b.readShort()));
+        register(19, null, (p, b) -> p.set("axisZ", b.readShort()));
+        register(21, null, (p, b) -> p.set(Position.KEY_RSSI, b.readUnsignedByte()));
+        register(24, fmbXXX, (p, b) -> p.setSpeed(UnitsConverter.knotsFromKph(b.readUnsignedShort())));
+        register(25, null, (p, b) -> p.set("bleTemp1", b.readShort() * 0.01));
+        register(26, null, (p, b) -> p.set("bleTemp2", b.readShort() * 0.01));
+        register(27, null, (p, b) -> p.set("bleTemp3", b.readShort() * 0.01));
+        register(28, null, (p, b) -> p.set("bleTemp4", b.readShort() * 0.01));
+        register(30, fmbXXX, (p, b) -> p.set("faultCount", b.readUnsignedByte()));
+        register(32, fmbXXX, (p, b) -> p.set(Position.KEY_COOLANT_TEMP, b.readByte()));
+        register(66, null, (p, b) -> p.set(Position.KEY_POWER, b.readUnsignedShort() * 0.001));
+        register(67, null, (p, b) -> p.set(Position.KEY_BATTERY, b.readUnsignedShort() * 0.001));
+        register(68, fmbXXX, (p, b) -> p.set("batteryCurrent", b.readUnsignedShort() * 0.001));
+        register(72, fmbXXX, (p, b) -> p.set(Position.PREFIX_TEMP + 1, b.readInt() * 0.1));
+        register(73, fmbXXX, (p, b) -> p.set(Position.PREFIX_TEMP + 2, b.readInt() * 0.1));
+        register(74, fmbXXX, (p, b) -> p.set(Position.PREFIX_TEMP + 3, b.readInt() * 0.1));
+        register(75, fmbXXX, (p, b) -> p.set(Position.PREFIX_TEMP + 4, b.readInt() * 0.1));
+        register(78, null, (p, b) -> {
+            long driverUniqueId = b.readLong();
+            if (driverUniqueId > 0) {
+                p.set(Position.KEY_DRIVER_UNIQUE_ID, String.format("%016X", driverUniqueId));
+            }
+        });
+        register(80, fmbXXX, (p, b) -> p.set("dataMode", b.readUnsignedByte()));
+        register(81, fmbXXX, (p, b) -> p.set(Position.KEY_OBD_SPEED, b.readUnsignedByte()));
+        register(82, fmbXXX, (p, b) -> p.set(Position.KEY_THROTTLE, b.readUnsignedByte()));
+        register(83, fmbXXX, (p, b) -> p.set(Position.KEY_FUEL_USED, b.readUnsignedInt() * 0.1));
+        register(84, fmbXXX, (p, b) -> p.set(Position.KEY_FUEL_LEVEL, b.readUnsignedShort() * 0.1));
+        register(85, fmbXXX, (p, b) -> p.set(Position.KEY_RPM, b.readUnsignedShort()));
+        register(87, fmbXXX, (p, b) -> p.set(Position.KEY_OBD_ODOMETER, b.readUnsignedInt()));
+        register(89, fmbXXX, (p, b) -> p.set("fuelLevelPercentage", b.readUnsignedByte()));
+        register(90, null, (p, b) -> p.set(Position.KEY_DOOR, b.readUnsignedShort()));
+        register(110, fmbXXX, (p, b) -> p.set(Position.KEY_FUEL_CONSUMPTION, b.readUnsignedShort() * 0.1));
+        register(113, fmbXXX, (p, b) -> p.set(Position.KEY_BATTERY_LEVEL, b.readUnsignedByte()));
+        register(179, null, (p, b) -> p.set(Position.PREFIX_OUT + 1, b.readUnsignedByte() > 0));
+        register(180, null, (p, b) -> p.set(Position.PREFIX_OUT + 2, b.readUnsignedByte() > 0));
+        register(181, null, (p, b) -> p.set(Position.KEY_PDOP, b.readUnsignedShort() * 0.1));
+        register(182, null, (p, b) -> p.set(Position.KEY_HDOP, b.readUnsignedShort() * 0.1));
+        register(199, null, (p, b) -> p.set(Position.KEY_ODOMETER_TRIP, b.readUnsignedInt()));
+        register(200, fmbXXX, (p, b) -> p.set("sleepMode", b.readUnsignedByte()));
+        register(205, fmbXXX, (p, b) -> p.set("cid2g", b.readUnsignedShort()));
+        register(206, fmbXXX, (p, b) -> p.set("lac", b.readUnsignedShort()));
+        register(232, fmbXXX, (p, b) -> p.set("cngStatus", b.readUnsignedByte() > 0));
+        register(233, fmbXXX, (p, b) -> p.set("cngUsed", b.readUnsignedInt() * 0.1));
+        register(234, fmbXXX, (p, b) -> p.set("cngLevel", b.readUnsignedShort()));
+        register(235, fmbXXX, (p, b) -> p.set("oilLevel", b.readUnsignedByte()));
+        register(236, null, (p, b) -> {
+            p.set(Position.KEY_ALARM, b.readUnsignedByte() > 0 ? Position.ALARM_GENERAL : null);
+        });
+        register(239, null, (p, b) -> p.set(Position.KEY_IGNITION, b.readUnsignedByte() > 0));
+        register(240, null, (p, b) -> p.set(Position.KEY_MOTION, b.readUnsignedByte() > 0));
+        register(241, null, (p, b) -> p.set(Position.KEY_OPERATOR, b.readUnsignedInt()));
+        register(246, fmbXXX, (p, b) -> {
+            p.set(Position.KEY_ALARM, b.readUnsignedByte() > 0 ? Position.ALARM_TOW : null);
+        });
+        register(247, fmbXXX, (p, b) -> {
+            p.set(Position.KEY_ALARM, b.readUnsignedByte() > 0 ? Position.ALARM_ACCIDENT : null);
+        });
+        register(249, fmbXXX, (p, b) -> {
+            p.set(Position.KEY_ALARM, b.readUnsignedByte() > 0 ? Position.ALARM_JAMMING : null);
+        });
+        register(252, fmbXXX, (p, b) -> {
+            p.set(Position.KEY_ALARM, b.readUnsignedByte() > 0 ? Position.ALARM_POWER_CUT : null);
+        });
+        register(253, null, (p, b) -> {
+            switch (b.readUnsignedByte()) {
+                case 1:
+                    p.set(Position.KEY_ALARM, Position.ALARM_ACCELERATION);
+                    break;
+                case 2:
+                    p.set(Position.KEY_ALARM, Position.ALARM_BRAKING);
+                    break;
+                case 3:
+                    p.set(Position.KEY_ALARM, Position.ALARM_CORNERING);
+                    break;
+                default:
+                    break;
+            }
+        });
+        register(636, fmbXXX, (p, b) -> p.set("cid4g", b.readUnsignedInt()));
     }
 
     private void decodeGh3000Parameter(Position position, int id, ByteBuf buf, int length) {
         switch (id) {
             case 1:
-                position.set(Position.KEY_BATTERY_LEVEL, readValue(buf, length, false));
+                position.set(Position.KEY_BATTERY_LEVEL, readValue(buf, length));
                 break;
             case 2:
-                position.set("usbConnected", readValue(buf, length, false) == 1);
+                position.set("usbConnected", readValue(buf, length) == 1);
                 break;
             case 5:
-                position.set("uptime", readValue(buf, length, false));
+                position.set("uptime", readValue(buf, length));
                 break;
             case 20:
-                position.set(Position.KEY_HDOP, readValue(buf, length, false) * 0.1);
+                position.set(Position.KEY_HDOP, readValue(buf, length) * 0.1);
                 break;
             case 21:
-                position.set(Position.KEY_VDOP, readValue(buf, length, false) * 0.1);
+                position.set(Position.KEY_VDOP, readValue(buf, length) * 0.1);
                 break;
             case 22:
-                position.set(Position.KEY_PDOP, readValue(buf, length, false) * 0.1);
+                position.set(Position.KEY_PDOP, readValue(buf, length) * 0.1);
                 break;
             case 67:
-                position.set(Position.KEY_BATTERY, readValue(buf, length, false) * 0.001);
+                position.set(Position.KEY_BATTERY, readValue(buf, length) * 0.001);
                 break;
             case 221:
-                position.set("button", readValue(buf, length, false));
+                position.set("button", readValue(buf, length));
                 break;
             case 222:
-                if (readValue(buf, length, false) == 1) {
+                if (readValue(buf, length) == 1) {
                     position.set(Position.KEY_ALARM, Position.ALARM_SOS);
                 }
                 break;
             case 240:
-                position.set(Position.KEY_MOTION, readValue(buf, length, false) == 1);
+                position.set(Position.KEY_MOTION, readValue(buf, length) == 1);
                 break;
             case 244:
-                position.set(Position.KEY_ROAMING, readValue(buf, length, false) == 1);
+                position.set(Position.KEY_ROAMING, readValue(buf, length) == 1);
                 break;
             default:
-                position.set(Position.PREFIX_IO + id, readValue(buf, length, false));
+                position.set(Position.PREFIX_IO + id, readValue(buf, length));
                 break;
         }
     }
 
-    private void decodeParameter(Position position, int id, ByteBuf buf, int length, int codec) {
+    private void decodeParameter(Position position, int id, ByteBuf buf, int length, int codec, String model) {
         if (codec == CODEC_GH3000) {
             decodeGh3000Parameter(position, id, buf, length);
         } else {
-            decodeOtherParameter(position, id, buf, length);
+            int index = buf.readerIndex();
+            boolean decoded = false;
+            for (var entry : PARAMETERS.getOrDefault(id, new HashMap<>()).entrySet()) {
+                if (entry.getKey() == null || model != null && entry.getKey().contains(model)) {
+                    entry.getValue().accept(position, buf);
+                    decoded = true;
+                    break;
+                }
+            }
+            if (decoded) {
+                buf.readerIndex(index + length);
+            } else {
+                position.set(Position.PREFIX_IO + id, readValue(buf, length));
+            }
         }
     }
 
-    private void decodeNetwork(Position position) {
-        long cid = position.getLong(Position.PREFIX_IO + 205);
-        int lac = position.getInteger(Position.PREFIX_IO + 206);
-        if (cid != 0 && lac != 0) {
-            CellTower cellTower = CellTower.fromLacCid(lac, cid);
-            long operator = position.getInteger(Position.KEY_OPERATOR);
-            if (operator >= 1000) {
-                cellTower.setOperator(operator);
+    private void decodeCell(
+            Position position, Network network, String mncKey, String lacKey, String cidKey, String rssiKey) {
+        if (position.hasAttribute(mncKey) && position.hasAttribute(lacKey) && position.hasAttribute(cidKey)) {
+            CellTower cellTower = CellTower.from(
+                    getConfig().getInteger(Keys.GEOLOCATION_MCC),
+                    ((Number) position.getAttributes().remove(mncKey)).intValue(),
+                    ((Number) position.getAttributes().remove(lacKey)).intValue(),
+                    ((Number) position.getAttributes().remove(cidKey)).longValue());
+            cellTower.setSignalStrength(((Number) position.getAttributes().remove(rssiKey)).intValue());
+            network.addCellTower(cellTower);
+        }
+    }
+
+    private void decodeNetwork(Position position, String model) {
+        if ("TAT100".equals(model)) {
+            Network network = new Network();
+            decodeCell(position, network, "io1200", "io287", "io288", "io289");
+            decodeCell(position, network, "io1201", "io290", "io291", "io292");
+            decodeCell(position, network, "io1202", "io293", "io294", "io295");
+            decodeCell(position, network, "io1203", "io296", "io297", "io298");
+            if (network.getCellTowers() != null) {
+                position.setNetwork(network);
+            }
+        } else {
+            Integer cid2g = (Integer) position.getAttributes().remove("cid2g");
+            Long cid4g = (Long) position.getAttributes().remove("cid4g");
+            Integer lac = (Integer) position.getAttributes().remove("lac");
+            if (lac != null && (cid2g != null || cid4g != null)) {
+                Network network = new Network();
+                CellTower cellTower;
+                if (cid2g != null) {
+                    cellTower = CellTower.fromLacCid(getConfig(), lac, cid2g);
+                } else {
+                    cellTower = CellTower.fromLacCid(getConfig(), lac, cid4g);
+                    network.setRadioType("lte");
+                }
+                long operator = position.getInteger(Position.KEY_OPERATOR);
+                if (operator >= 1000) {
+                    cellTower.setOperator(operator);
+                }
+                network.addCellTower(cellTower);
+                position.setNetwork(new Network(cellTower));
             }
-            position.setNetwork(new Network(cellTower));
         }
     }
 
@@ -384,7 +419,7 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
         }
     }
 
-    private void decodeLocation(Position position, ByteBuf buf, int codec) {
+    private void decodeLocation(Position position, ByteBuf buf, int codec, String model) {
 
         int globalMask = 0x0f;
 
@@ -422,7 +457,8 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
                 }
 
                 if (BitUtil.check(locationMask, 5)) {
-                    CellTower cellTower = CellTower.fromLacCid(buf.readUnsignedShort(), buf.readUnsignedShort());
+                    CellTower cellTower = CellTower.fromLacCid(
+                            getConfig(), buf.readUnsignedShort(), buf.readUnsignedShort());
 
                     if (BitUtil.check(locationMask, 6)) {
                         cellTower.setSignalStrength((int) buf.readUnsignedByte());
@@ -480,7 +516,7 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
         if (BitUtil.check(globalMask, 1)) {
             int cnt = readExtByte(buf, codec, CODEC_8_EXT);
             for (int j = 0; j < cnt; j++) {
-                decodeParameter(position, readExtByte(buf, codec, CODEC_8_EXT, CODEC_16), buf, 1, codec);
+                decodeParameter(position, readExtByte(buf, codec, CODEC_8_EXT, CODEC_16), buf, 1, codec, model);
             }
         }
 
@@ -488,7 +524,7 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
         if (BitUtil.check(globalMask, 2)) {
             int cnt = readExtByte(buf, codec, CODEC_8_EXT);
             for (int j = 0; j < cnt; j++) {
-                decodeParameter(position, readExtByte(buf, codec, CODEC_8_EXT, CODEC_16), buf, 2, codec);
+                decodeParameter(position, readExtByte(buf, codec, CODEC_8_EXT, CODEC_16), buf, 2, codec, model);
             }
         }
 
@@ -496,7 +532,7 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
         if (BitUtil.check(globalMask, 3)) {
             int cnt = readExtByte(buf, codec, CODEC_8_EXT);
             for (int j = 0; j < cnt; j++) {
-                decodeParameter(position, readExtByte(buf, codec, CODEC_8_EXT, CODEC_16), buf, 4, codec);
+                decodeParameter(position, readExtByte(buf, codec, CODEC_8_EXT, CODEC_16), buf, 4, codec, model);
             }
         }
 
@@ -504,7 +540,7 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
         if (codec == CODEC_8 || codec == CODEC_8_EXT || codec == CODEC_16) {
             int cnt = readExtByte(buf, codec, CODEC_8_EXT);
             for (int j = 0; j < cnt; j++) {
-                decodeOtherParameter(position, readExtByte(buf, codec, CODEC_8_EXT, CODEC_16), buf, 8);
+                decodeParameter(position, readExtByte(buf, codec, CODEC_8_EXT, CODEC_16), buf, 8, codec, model);
             }
         }
 
@@ -558,7 +594,7 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
             }
         }
 
-        decodeNetwork(position);
+        decodeNetwork(position, model);
 
     }
 
@@ -574,10 +610,10 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
         int count = buf.readUnsignedByte();
 
         DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
-
         if (deviceSession == null) {
             return null;
         }
+        String model = getCacheManager().getObject(Device.class, deviceSession.getDeviceId()).getModel();
 
         for (int i = 0; i < count; i++) {
             Position position = new Position(getProtocolName());
@@ -589,17 +625,21 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
                 buf.readUnsignedByte(); // type
                 int length = buf.readInt() - 4;
                 getLastLocation(position, new Date(buf.readUnsignedInt() * 1000));
-                if (isPrintable(buf, length)) {
-                    position.set(Position.KEY_RESULT,
-                            buf.readCharSequence(length, StandardCharsets.US_ASCII).toString().trim());
+                if (BufferUtil.isPrintable(buf, length)) {
+                    String data = buf.readCharSequence(length, StandardCharsets.US_ASCII).toString().trim();
+                    if (data.startsWith("GTSL")) {
+                        position.set(Position.KEY_DRIVER_UNIQUE_ID, data.split("\\|")[4]);
+                    } else {
+                        position.set(Position.KEY_RESULT, data);
+                    }
                 } else {
                     position.set(Position.KEY_RESULT,
                             ByteBufUtil.hexDump(buf.readSlice(length)));
                 }
             } else if (codec == CODEC_12) {
-                decodeSerial(channel, remoteAddress, position, buf);
+                decodeSerial(channel, remoteAddress, deviceSession, position, buf);
             } else {
-                decodeLocation(position, buf, codec);
+                decodeLocation(position, buf, codec, model);
             }
 
             if (!position.getOutdated() || !position.getAttributes().isEmpty()) {
@@ -636,9 +676,11 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
         }
     }
 
-    private Object decodeTcp(Channel channel, SocketAddress remoteAddress, ByteBuf buf) throws Exception {
+    private Object decodeTcp(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
 
-        if (buf.getUnsignedShort(0) > 0) {
+        if (buf.readableBytes() == 1 && buf.readUnsignedByte() == 0xff) {
+            return null;
+        } else if (buf.getUnsignedShort(0) > 0) {
             parseIdentification(channel, remoteAddress, buf);
         } else {
             buf.skipBytes(4);
@@ -648,7 +690,7 @@ public class TeltonikaProtocolDecoder extends BaseProtocolDecoder {
         return null;
     }
 
-    private Object decodeUdp(Channel channel, SocketAddress remoteAddress, ByteBuf buf) throws Exception {
+    private Object decodeUdp(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
 
         buf.readUnsignedShort(); // length
         buf.readUnsignedShort(); // packet id
diff --git a/src/main/java/org/traccar/protocol/TeraTrackProtocol.java b/src/main/java/org/traccar/protocol/TeraTrackProtocol.java
index 0303b4b5a..e872ddf42 100644
--- a/src/main/java/org/traccar/protocol/TeraTrackProtocol.java
+++ b/src/main/java/org/traccar/protocol/TeraTrackProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class TeraTrackProtocol extends BaseProtocol {
 
-    public TeraTrackProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public TeraTrackProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new JsonFrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/TeraTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/TeraTrackProtocolDecoder.java
index c36da2aed..be4b98e4c 100644
--- a/src/main/java/org/traccar/protocol/TeraTrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TeraTrackProtocolDecoder.java
@@ -17,14 +17,14 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
 
-import javax.json.Json;
-import javax.json.JsonObject;
+import jakarta.json.Json;
+import jakarta.json.JsonObject;
 import java.io.StringReader;
 import java.net.SocketAddress;
 import java.text.DateFormat;
@@ -63,7 +63,7 @@ public class TeraTrackProtocolDecoder extends BaseProtocolDecoder {
         position.setSpeed(UnitsConverter.knotsFromKph(Integer.parseInt(json.getString("Speed"))));
 
         position.set(Position.KEY_ODOMETER, Integer.parseInt(json.getString("Mileage")));
-        position.set(Position.KEY_BLOCKED, json.getString("LockOpen").equals("0"));
+        position.set(Position.KEY_LOCK, json.getString("LockOpen").equals("0"));
         position.set(Position.KEY_DRIVER_UNIQUE_ID, json.getString("CardNo"));
         position.set(Position.KEY_ALARM, json.getString("LowPower").equals("1") ? Position.ALARM_LOW_POWER : null);
         position.set(Position.KEY_BATTERY_LEVEL, Integer.parseInt(json.getString("Power")));
diff --git a/src/main/java/org/traccar/protocol/ThinkPowerProtocol.java b/src/main/java/org/traccar/protocol/ThinkPowerProtocol.java
index ece1b0544..b23dadf08 100644
--- a/src/main/java/org/traccar/protocol/ThinkPowerProtocol.java
+++ b/src/main/java/org/traccar/protocol/ThinkPowerProtocol.java
@@ -19,13 +19,17 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class ThinkPowerProtocol extends BaseProtocol {
 
-    public ThinkPowerProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public ThinkPowerProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 2, 2, 2, 0));
                 pipeline.addLast(new ThinkPowerProtocolDecoder(ThinkPowerProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/ThinkPowerProtocolDecoder.java b/src/main/java/org/traccar/protocol/ThinkPowerProtocolDecoder.java
index b3f943078..e7ab23e5b 100644
--- a/src/main/java/org/traccar/protocol/ThinkPowerProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ThinkPowerProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2021 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,7 +19,8 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.helper.BufferUtil;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
@@ -64,8 +65,8 @@ public class ThinkPowerProtocolDecoder extends BaseProtocolDecoder {
         switch (type) {
             case 0x01:
                 position.setValid(true);
-                position.setLatitude(buf.readInt() * 0.0000001);
-                position.setLongitude(buf.readInt() * 0.0000001);
+                position.setLatitude(BufferUtil.readSignedMagnitudeInt(buf) * 0.0000001);
+                position.setLongitude(BufferUtil.readSignedMagnitudeInt(buf) * 0.0000001);
                 position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShort() * 0.1));
                 position.setCourse(buf.readUnsignedShort() * 0.01);
                 break;
diff --git a/src/main/java/org/traccar/protocol/ThinkRaceProtocol.java b/src/main/java/org/traccar/protocol/ThinkRaceProtocol.java
index ca1237cef..34b80ba87 100644
--- a/src/main/java/org/traccar/protocol/ThinkRaceProtocol.java
+++ b/src/main/java/org/traccar/protocol/ThinkRaceProtocol.java
@@ -19,13 +19,17 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class ThinkRaceProtocol extends BaseProtocol {
 
-    public ThinkRaceProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public ThinkRaceProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 2 + 12 + 1 + 1, 2, 2, 0));
                 pipeline.addLast(new ThinkRaceProtocolDecoder(ThinkRaceProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/ThinkRaceProtocolDecoder.java b/src/main/java/org/traccar/protocol/ThinkRaceProtocolDecoder.java
index 0928b25e0..796b726ea 100644
--- a/src/main/java/org/traccar/protocol/ThinkRaceProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ThinkRaceProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -104,7 +104,7 @@ public class ThinkRaceProtocolDecoder extends BaseProtocolDecoder {
             position.setCourse(buf.readUnsignedByte());
 
             position.setNetwork(new Network(
-                    CellTower.fromLacCid(buf.readUnsignedShort(), buf.readUnsignedShort())));
+                    CellTower.fromLacCid(getConfig(), buf.readUnsignedShort(), buf.readUnsignedShort())));
 
             return position;
 
diff --git a/src/main/java/org/traccar/protocol/ThurayaProtocol.java b/src/main/java/org/traccar/protocol/ThurayaProtocol.java
new file mode 100644
index 000000000..33d486f6b
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/ThurayaProtocol.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
+import org.traccar.BaseProtocol;
+import org.traccar.PipelineBuilder;
+import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
+
+public class ThurayaProtocol extends BaseProtocol {
+
+    @Inject
+    public ThurayaProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
+            @Override
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
+                pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 2, 2, -4, 0));
+                pipeline.addLast(new ThurayaProtocolDecoder(ThurayaProtocol.this));
+            }
+        });
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/ThurayaProtocolDecoder.java b/src/main/java/org/traccar/protocol/ThurayaProtocolDecoder.java
new file mode 100644
index 000000000..a287ece34
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/ThurayaProtocolDecoder.java
@@ -0,0 +1,195 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import io.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.NetworkMessage;
+import org.traccar.Protocol;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.DateBuilder;
+import org.traccar.model.Position;
+import org.traccar.session.DeviceSession;
+
+import java.net.SocketAddress;
+import java.nio.ByteBuffer;
+import java.nio.charset.StandardCharsets;
+import java.util.LinkedList;
+import java.util.List;
+
+public class ThurayaProtocolDecoder extends BaseProtocolDecoder {
+
+    public ThurayaProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    public static final int MSG_EVENT = 0x5101;
+    public static final int MSG_PERIODIC_REPORT = 0x7101;
+    public static final int MSG_SETTING_RESPONSE = 0x8115;
+    public static final int MSG_ACK = 0x9901;
+
+    private static int checksum(ByteBuffer buf) {
+        int crc = 0;
+        while (buf.hasRemaining()) {
+            crc += buf.get();
+        }
+        crc = ~crc;
+        crc += 1;
+        return crc;
+    }
+
+    private void sendResponse(Channel channel, SocketAddress remoteAddress, long id, int type) {
+        if (channel != null) {
+            ByteBuf response = Unpooled.buffer();
+            response.writeCharSequence("#T", StandardCharsets.US_ASCII);
+            response.writeShort(15); // length
+            response.writeShort(MSG_ACK);
+            response.writeInt((int) id);
+            response.writeShort(type);
+            response.writeShort(1); // server ok
+            response.writeShort(checksum(response.nioBuffer()));
+            channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
+        }
+    }
+
+    private void decodeLocation(ByteBuf buf, Position position) {
+
+        position.setValid(true);
+
+        DateBuilder dateBuilder = new DateBuilder();
+
+        int date = buf.readInt();
+        dateBuilder.setDay(date % 100);
+        date /= 100;
+        dateBuilder.setMonth(date % 100);
+        date /= 100;
+        dateBuilder.setYear(date);
+
+        int time = buf.readInt();
+        dateBuilder.setSecond(time % 100);
+        time /= 100;
+        dateBuilder.setMinute(time % 100);
+        time /= 100;
+        dateBuilder.setHour(time);
+
+        position.setTime(dateBuilder.getDate());
+
+        position.setLongitude(buf.readInt() / 1000000.0);
+        position.setLatitude(buf.readInt() / 1000000.0);
+
+        int data = buf.readUnsignedShort();
+
+        int ignition = BitUtil.from(data, 12);
+        if (ignition == 1) {
+            position.set(Position.KEY_IGNITION, true);
+        } else if (ignition == 2) {
+            position.set(Position.KEY_IGNITION, false);
+        }
+
+        position.setCourse(BitUtil.to(data, 12));
+        position.setSpeed(buf.readShort());
+
+        position.set(Position.KEY_RPM, buf.readShort());
+
+        position.set("data", readString(buf));
+    }
+
+    private String decodeAlarm(int event) {
+        switch (event) {
+            case 10:
+                return Position.ALARM_VIBRATION;
+            case 11:
+                return Position.ALARM_OVERSPEED;
+            case 12:
+                return Position.ALARM_POWER_CUT;
+            case 13:
+                return Position.ALARM_LOW_BATTERY;
+            case 18:
+                return Position.ALARM_GPS_ANTENNA_CUT;
+            case 20:
+                return Position.ALARM_ACCELERATION;
+            case 21:
+                return Position.ALARM_BRAKING;
+            default:
+                return null;
+        }
+    }
+
+    private String readString(ByteBuf buf) {
+        int endIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 0);
+        CharSequence value = buf.readCharSequence(endIndex - buf.readerIndex(), StandardCharsets.US_ASCII);
+        buf.readUnsignedByte(); // delimiter
+        return value.toString();
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        ByteBuf buf = (ByteBuf) msg;
+
+        buf.skipBytes(2); // service
+        buf.readUnsignedShort(); // length
+        int type = buf.readUnsignedShort();
+        long id = buf.readUnsignedInt();
+
+        sendResponse(channel, remoteAddress, id, type);
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, String.valueOf(id));
+        if (deviceSession == null) {
+            return null;
+        }
+
+        if (type == MSG_EVENT) {
+
+            Position position = new Position(getProtocolName());
+            position.setDeviceId(deviceSession.getDeviceId());
+
+            decodeLocation(buf, position);
+
+            int event = buf.readUnsignedByte();
+            position.set(Position.KEY_ALARM, decodeAlarm(event));
+            position.set(Position.KEY_EVENT, event);
+            position.set("eventData", readString(buf));
+
+            return position;
+
+        } else if (type == MSG_PERIODIC_REPORT) {
+
+            List<Position> positions = new LinkedList<>();
+
+            int count = buf.readUnsignedByte();
+            for (int i = 0; i < count; i++) {
+
+                Position position = new Position(getProtocolName());
+                position.setDeviceId(deviceSession.getDeviceId());
+
+                decodeLocation(buf, position);
+
+                positions.add(position);
+
+            }
+
+            return positions;
+
+        }
+
+        return null;
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/Tk102Protocol.java b/src/main/java/org/traccar/protocol/Tk102Protocol.java
index 9f2463cd6..b6a82981b 100644
--- a/src/main/java/org/traccar/protocol/Tk102Protocol.java
+++ b/src/main/java/org/traccar/protocol/Tk102Protocol.java
@@ -19,13 +19,17 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Tk102Protocol extends BaseProtocol {
 
-    public Tk102Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Tk102Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 1 + 1 + 10, 1, 1, 0));
                 pipeline.addLast(new Tk102ProtocolDecoder(Tk102Protocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java
index da0c6928b..af29fbc21 100644
--- a/src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/Tk103Protocol.java b/src/main/java/org/traccar/protocol/Tk103Protocol.java
index ff0bedfb7..b641ef083 100644
--- a/src/main/java/org/traccar/protocol/Tk103Protocol.java
+++ b/src/main/java/org/traccar/protocol/Tk103Protocol.java
@@ -21,11 +21,15 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class Tk103Protocol extends BaseProtocol {
 
-    public Tk103Protocol() {
+    @Inject
+    public Tk103Protocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM,
                 Command.TYPE_GET_DEVICE_STATUS,
@@ -45,9 +49,9 @@ public class Tk103Protocol extends BaseProtocol {
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_ENGINE_RESUME,
                 Command.TYPE_OUTPUT_CONTROL);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new Tk103FrameDecoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
@@ -55,9 +59,9 @@ public class Tk103Protocol extends BaseProtocol {
                 pipeline.addLast(new Tk103ProtocolDecoder(Tk103Protocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new Tk103ProtocolEncoder(Tk103Protocol.this));
diff --git a/src/main/java/org/traccar/protocol/Tk103ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Tk103ProtocolDecoder.java
index ff33cb103..6c926da90 100644
--- a/src/main/java/org/traccar/protocol/Tk103ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Tk103ProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,10 +15,12 @@
  */
 package org.traccar.protocol;
 
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.helper.DataConverter;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
@@ -36,11 +38,15 @@ import java.util.regex.Pattern;
 
 public class Tk103ProtocolDecoder extends BaseProtocolDecoder {
 
-    private final boolean decodeLow;
+    private boolean decodeLow;
 
     public Tk103ProtocolDecoder(Protocol protocol) {
         super(protocol);
-        decodeLow = Context.getConfig().getBoolean(Keys.PROTOCOL_DECODE_LOW.withPrefix(getProtocolName()));
+    }
+
+    @Override
+    protected void init() {
+        decodeLow = getConfig().getBoolean(Keys.PROTOCOL_DECODE_LOW.withPrefix(getProtocolName()));
     }
 
     private static final Pattern PATTERN = new PatternBuilder()
@@ -96,6 +102,16 @@ public class Tk103ProtocolDecoder extends BaseProtocolDecoder {
             .any()
             .compile();
 
+    private static final Pattern PATTERN_CELL = new PatternBuilder()
+            .text("(")
+            .number("(d{12})")                   // device id
+            .expression(".{4}")                  // type
+            .number("(?:d{15})?,")               // imei
+            .expression("(.+),")                 // cell
+            .number("(d{8})")                    // odometer
+            .text(")")
+            .compile();
+
     private static final Pattern PATTERN_NETWORK = new PatternBuilder()
             .text("(").optional()
             .number("(d{12})")                   // device id
@@ -294,6 +310,39 @@ public class Tk103ProtocolDecoder extends BaseProtocolDecoder {
         return position;
     }
 
+    private Position decodeCell(Channel channel, SocketAddress remoteAddress, String sentence) {
+        Parser parser = new Parser(PATTERN_CELL, sentence);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+        if (deviceSession == null) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        getLastLocation(position, null);
+
+        Network network = new Network();
+
+        String[] cells = parser.next().split("\n");
+        for (String cell : cells) {
+            String[] values = cell.substring(1, cell.length() - 1).split(",");
+            network.addCellTower(CellTower.from(
+                    Integer.parseInt(values[0]), Integer.parseInt(values[1]),
+                    Integer.parseInt(values[2]), Integer.parseInt(values[3])));
+        }
+
+        position.setNetwork(network);
+
+        position.set(Position.KEY_ODOMETER, parser.nextLong(16, 0));
+
+        return position;
+    }
+
     private Position decodeNetwork(Channel channel, SocketAddress remoteAddress, String sentence) {
         Parser parser = new Parser(PATTERN_NETWORK, sentence);
         if (!parser.matches()) {
@@ -402,6 +451,106 @@ public class Tk103ProtocolDecoder extends BaseProtocolDecoder {
         return position;
     }
 
+    private Position decodeBms(Channel channel, SocketAddress remoteAddress, String sentence) {
+        String id = sentence.substring(1, 13);
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, id);
+        if (deviceSession == null) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        getLastLocation(position, null);
+
+        String payload = sentence.substring(1 + 12 + 4, sentence.length() - 1);
+
+        if (sentence.startsWith("BS50", 1 + 12)) {
+
+            ByteBuf buf = Unpooled.wrappedBuffer(DataConverter.parseHex(payload));
+
+            buf.readUnsignedByte();
+            buf.readUnsignedByte();
+            buf.readUnsignedByte(); // header
+
+            int batteryCount = buf.readUnsignedByte();
+            for (int i = 1; i <= 24; i++) {
+                int voltage = buf.readUnsignedShortLE();
+                if (i <= batteryCount) {
+                    position.set("battery" + i, voltage * 0.001);
+                }
+            }
+
+            position.set(Position.KEY_CHARGE, buf.readUnsignedByte() == 0);
+            position.set("current", buf.readUnsignedShortLE() * 0.1);
+            position.set(Position.KEY_BATTERY, buf.readUnsignedShortLE() * 0.01);
+            position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte());
+            position.set("batteryOverheat", buf.readUnsignedByte() > 0);
+            position.set("chargeProtection", buf.readUnsignedByte() > 0);
+            position.set("dischargeProtection", buf.readUnsignedByte() > 0);
+            buf.readUnsignedByte(); // drop line
+            buf.readUnsignedByte(); // balanced
+            position.set("cycles", buf.readUnsignedShortLE());
+            position.set("faultAlarm", buf.readUnsignedByte());
+
+            buf.skipBytes(6);
+
+            int temperatureCount = buf.readUnsignedByte();
+            position.set("powerTemp", buf.readUnsignedByte() - 40);
+            position.set("equilibriumTemp", buf.readUnsignedByte() - 40);
+            for (int i = 1; i <= 7; i++) {
+                int temperature = buf.readUnsignedByte() - 40;
+                if (i <= temperatureCount) {
+                    position.set("batteryTemp" + i, temperature);
+                }
+            }
+
+            position.set("calibrationCapacity", buf.readUnsignedShortLE() * 0.01);
+            position.set("dischargeCapacity", buf.readUnsignedIntLE());
+
+        } else {
+
+            String[] values = payload.split(",");
+            for (String value : values) {
+                String[] pair = value.split(":");
+                int key = Integer.parseInt(pair[0], 16);
+                ByteBuf buf = Unpooled.wrappedBuffer(DataConverter.parseHex(pair[1]));
+                switch (key) {
+                    case 0x90:
+                        position.set("cumulativeVoltage", buf.readUnsignedShortLE() * 0.1);
+                        position.set("gatherVoltage", buf.readUnsignedShortLE() * 0.1);
+                        position.set("current", (buf.readUnsignedShortLE() - 30000) * 0.1);
+                        position.set("soc", buf.readUnsignedShortLE() * 0.1);
+                        break;
+                    case 0x91:
+                        position.set("maxCellVoltage", buf.readUnsignedShortLE() * 0.001);
+                        position.set("maxCellVoltageCount", buf.readUnsignedByte());
+                        position.set("minCellVoltage", buf.readUnsignedShortLE() * 0.001);
+                        position.set("minCellVoltageCount", buf.readUnsignedByte());
+                        break;
+                    case 0x92:
+                        position.set("maxTemp", buf.readUnsignedByte() - 40);
+                        position.set("maxTempCount", buf.readUnsignedByte());
+                        position.set("minTemp", buf.readUnsignedByte() - 40);
+                        position.set("minTempCount", buf.readUnsignedByte());
+                        break;
+                    case 0x96:
+                        buf.readUnsignedByte(); // frame
+                        while (buf.isReadable()) {
+                            position.set("cellTemp" + buf.readerIndex(), buf.readUnsignedByte() - 40);
+                        }
+                        break;
+                    default:
+                        break;
+                }
+
+            }
+
+        }
+
+        return position;
+    }
+
     @Override
     protected Object decode(
             Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
@@ -419,7 +568,9 @@ public class Tk103ProtocolDecoder extends BaseProtocolDecoder {
             }
         }
 
-        if (sentence.contains("ZC20")) {
+        if (sentence.indexOf('{') > 0 && sentence.indexOf('}') > 0) {
+            return decodeCell(channel, remoteAddress, sentence);
+        } else if (sentence.contains("ZC20")) {
             return decodeBattery(channel, remoteAddress, sentence);
         } else if (sentence.contains("BZ00")) {
             return decodeNetwork(channel, remoteAddress, sentence);
@@ -429,6 +580,8 @@ public class Tk103ProtocolDecoder extends BaseProtocolDecoder {
             return decodeLbsWifi(channel, remoteAddress, sentence);
         } else if (sentence.contains("BV00")) {
             return decodeVin(channel, remoteAddress, sentence);
+        } else if (sentence.contains("BS50") || sentence.contains("BS51")) {
+            return decodeBms(channel, remoteAddress, sentence);
         }
 
         Parser parser = new Parser(PATTERN, sentence);
diff --git a/src/main/java/org/traccar/protocol/Tk103ProtocolEncoder.java b/src/main/java/org/traccar/protocol/Tk103ProtocolEncoder.java
index 5d7e63920..e3e1ae961 100644
--- a/src/main/java/org/traccar/protocol/Tk103ProtocolEncoder.java
+++ b/src/main/java/org/traccar/protocol/Tk103ProtocolEncoder.java
@@ -16,10 +16,11 @@
  */
 package org.traccar.protocol;
 
-import org.traccar.Context;
+import org.traccar.Protocol;
 import org.traccar.StringProtocolEncoder;
+import org.traccar.config.Keys;
+import org.traccar.helper.model.AttributeUtil;
 import org.traccar.model.Command;
-import org.traccar.Protocol;
 
 public class Tk103ProtocolEncoder extends StringProtocolEncoder {
 
@@ -42,12 +43,12 @@ public class Tk103ProtocolEncoder extends StringProtocolEncoder {
     @Override
     protected Object encodeCommand(Command command) {
 
-        boolean alternative = forceAlternative || Context.getIdentityManager().lookupAttributeBoolean(
-                command.getDeviceId(), getProtocolName() + ".alternative", false, false, true);
+        boolean alternative = AttributeUtil.lookup(
+                getCacheManager(), Keys.PROTOCOL_ALTERNATIVE.withPrefix(getProtocolName()), command.getDeviceId());
 
         initDevicePassword(command, "123456");
 
-        if (alternative) {
+        if (alternative || forceAlternative) {
             switch (command.getType()) {
                 case Command.TYPE_CUSTOM:
                     return formatAlt(command, "%s", Command.KEY_DATA);
diff --git a/src/main/java/org/traccar/protocol/Tlt2hProtocol.java b/src/main/java/org/traccar/protocol/Tlt2hProtocol.java
index 12fd92afa..6763e9b6b 100644
--- a/src/main/java/org/traccar/protocol/Tlt2hProtocol.java
+++ b/src/main/java/org/traccar/protocol/Tlt2hProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Tlt2hProtocol extends BaseProtocol {
 
-    public Tlt2hProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Tlt2hProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(32 * 1024, "##\r\n"));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/Tlt2hProtocolDecoder.java b/src/main/java/org/traccar/protocol/Tlt2hProtocolDecoder.java
index ad7dfa886..e85bdf9b3 100644
--- a/src/main/java/org/traccar/protocol/Tlt2hProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Tlt2hProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2013 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,7 +17,8 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.model.CellTower;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
@@ -55,6 +56,12 @@ public class Tlt2hProtocolDecoder extends BaseProtocolDecoder {
     private static final Pattern PATTERN_POSITION = new PatternBuilder()
             .text("#")
             .number("(?:(dd)|x*)")               // cell or voltage
+            .groupBegin()
+            .number("#(d+),")                    // mcc
+            .number("(d+),")                     // mnc
+            .number("(x+),")                     // lac
+            .number("(x+)")                      // cell id
+            .groupEnd("?")
             .text("$GPRMC,")
             .number("(dd)(dd)(dd).d+,")          // time (hhmmss.sss)
             .expression("([AVL]),")              // validity
@@ -71,6 +78,12 @@ public class Tlt2hProtocolDecoder extends BaseProtocolDecoder {
     private static final Pattern PATTERN_WIFI = new PatternBuilder()
             .text("#")
             .number("(?:(dd)|x+)")               // cell or voltage
+            .groupBegin()
+            .number("#(d+),")                    // mcc
+            .number("(d+),")                     // mnc
+            .number("(x+),")                     // lac
+            .number("(x+)")                      // cell id
+            .groupEnd("?")
             .text("$WIFI,")
             .number("(dd)(dd)(dd).d+,")          // time (hhmmss.sss)
             .expression("[AVL],")                // validity
@@ -168,6 +181,13 @@ public class Tlt2hProtocolDecoder extends BaseProtocolDecoder {
                         position.set(Position.KEY_BATTERY, parser.nextInt() * 0.1);
                     }
 
+                    if (parser.hasNext(4)) {
+                        Network network = new Network();
+                        network.addCellTower(CellTower.from(
+                                parser.nextInt(), parser.nextInt(), parser.nextHexInt(), parser.nextHexInt()));
+                        position.setNetwork(network);
+                    }
+
                     DateBuilder dateBuilder = new DateBuilder()
                             .setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
 
@@ -191,11 +211,16 @@ public class Tlt2hProtocolDecoder extends BaseProtocolDecoder {
 
                     position.set(Position.KEY_BATTERY, parser.nextInt() * 0.1);
 
+                    Network network = new Network();
+                    if (parser.hasNext(4)) {
+                        network.addCellTower(CellTower.from(
+                                parser.nextInt(), parser.nextInt(), parser.nextHexInt(), parser.nextHexInt()));
+                    }
+
                     DateBuilder dateBuilder = new DateBuilder()
                             .setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
 
                     String[] values = parser.next().split(",");
-                    Network network = new Network();
                     for (int i = 0; i < values.length / 2; i++) {
                         String mac = values[i * 2 + 1].replaceAll("(..)", "$1:").substring(0, 17);
                         network.addWifiAccessPoint(WifiAccessPoint.from(mac, Integer.parseInt(values[i * 2])));
diff --git a/src/main/java/org/traccar/protocol/TlvProtocol.java b/src/main/java/org/traccar/protocol/TlvProtocol.java
index 94f5da94f..f99676d23 100644
--- a/src/main/java/org/traccar/protocol/TlvProtocol.java
+++ b/src/main/java/org/traccar/protocol/TlvProtocol.java
@@ -19,13 +19,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class TlvProtocol extends BaseProtocol {
 
-    public TlvProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public TlvProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '\0'));
                 pipeline.addLast(new TlvProtocolDecoder(TlvProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/TlvProtocolDecoder.java b/src/main/java/org/traccar/protocol/TlvProtocolDecoder.java
index 36cf7859f..7870c778a 100644
--- a/src/main/java/org/traccar/protocol/TlvProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TlvProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/TmgProtocol.java b/src/main/java/org/traccar/protocol/TmgProtocol.java
index 020332ce7..dbba648be 100644
--- a/src/main/java/org/traccar/protocol/TmgProtocol.java
+++ b/src/main/java/org/traccar/protocol/TmgProtocol.java
@@ -20,13 +20,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class TmgProtocol extends BaseProtocol {
 
-    public TmgProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public TmgProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new TmgFrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/TmgProtocolDecoder.java b/src/main/java/org/traccar/protocol/TmgProtocolDecoder.java
index d27849f8c..00dc2a09b 100644
--- a/src/main/java/org/traccar/protocol/TmgProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TmgProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/TopflytechProtocol.java b/src/main/java/org/traccar/protocol/TopflytechProtocol.java
index 303072bdb..a658235ab 100644
--- a/src/main/java/org/traccar/protocol/TopflytechProtocol.java
+++ b/src/main/java/org/traccar/protocol/TopflytechProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class TopflytechProtocol extends BaseProtocol {
 
-    public TopflytechProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public TopflytechProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, ')'));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/TopflytechProtocolDecoder.java b/src/main/java/org/traccar/protocol/TopflytechProtocolDecoder.java
index 6de053c32..92a7b5c9d 100644
--- a/src/main/java/org/traccar/protocol/TopflytechProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TopflytechProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/TopinProtocol.java b/src/main/java/org/traccar/protocol/TopinProtocol.java
index d28afbf94..1a558f617 100644
--- a/src/main/java/org/traccar/protocol/TopinProtocol.java
+++ b/src/main/java/org/traccar/protocol/TopinProtocol.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2019 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2019 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,16 +18,23 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class TopinProtocol extends BaseProtocol {
 
-    public TopinProtocol() {
-        setSupportedDataCommands(
-                Command.TYPE_SOS_NUMBER);
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public TopinProtocol(Config config) {
+        if (!config.getBoolean(Keys.PROTOCOL_DISABLE_COMMANDS.withPrefix(getName()))) {
+            setSupportedDataCommands(
+                    Command.TYPE_SOS_NUMBER);
+        }
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new TopinProtocolEncoder(TopinProtocol.this));
                 pipeline.addLast(new TopinProtocolDecoder(TopinProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/TopinProtocolDecoder.java b/src/main/java/org/traccar/protocol/TopinProtocolDecoder.java
index 4fe261aa4..b5dd3c4b9 100644
--- a/src/main/java/org/traccar/protocol/TopinProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TopinProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
@@ -48,7 +48,11 @@ public class TopinProtocolDecoder extends BaseProtocolDecoder {
     public static final int MSG_GPS = 0x10;
     public static final int MSG_GPS_OFFLINE = 0x11;
     public static final int MSG_STATUS = 0x13;
+    public static final int MSG_SLEEP = 0x14;
+    public static final int MSG_FACTORY_RESET = 0x15;
     public static final int MSG_WIFI_OFFLINE = 0x17;
+    public static final int MSG_LBS_WIFI = 0x18;
+    public static final int MSG_LBS_WIFI_OFFLINE = 0x19;
     public static final int MSG_TIME_UPDATE = 0x30;
     public static final int MSG_SOS_NUMBER = 0x41;
     public static final int MSG_WIFI = 0x69;
@@ -216,7 +220,8 @@ public class TopinProtocolDecoder extends BaseProtocolDecoder {
 
             return position;
 
-        } else if (type == MSG_WIFI || type == MSG_WIFI_OFFLINE) {
+        } else if (type == MSG_WIFI || type == MSG_WIFI_OFFLINE
+                || type == MSG_LBS_WIFI || type == MSG_LBS_WIFI_OFFLINE) {
 
             Position position = new Position(getProtocolName());
             position.setDeviceId(deviceSession.getDeviceId());
diff --git a/src/main/java/org/traccar/protocol/TotemProtocol.java b/src/main/java/org/traccar/protocol/TotemProtocol.java
index 417a4d6b0..b02d4f1fc 100644
--- a/src/main/java/org/traccar/protocol/TotemProtocol.java
+++ b/src/main/java/org/traccar/protocol/TotemProtocol.java
@@ -20,11 +20,15 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class TotemProtocol extends BaseProtocol {
 
-    public TotemProtocol() {
+    @Inject
+    public TotemProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM,
                 Command.TYPE_REBOOT_DEVICE,
@@ -46,9 +50,9 @@ public class TotemProtocol extends BaseProtocol {
                 Command.TYPE_ENGINE_STOP
         );
 
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new TotemFrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/TotemProtocolDecoder.java b/src/main/java/org/traccar/protocol/TotemProtocolDecoder.java
index 58c66031e..6f039c324 100644
--- a/src/main/java/org/traccar/protocol/TotemProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TotemProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2013 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -135,13 +135,17 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
     private static final Pattern PATTERN4 = new PatternBuilder()
             .text("$$")                          // header
             .number("dddd")                      // length
-            .number("(xx)")                      // type
+            .number("xx")                        // type
             .number("(d+)|")                     // imei
             .number("(x{8})")                    // status
             .number("(dd)(dd)(dd)")              // date (yymmdd)
             .number("(dd)(dd)(dd)")              // time (hhmmss)
+            .groupBegin()
             .number("(dd)")                      // battery
             .number("(dd)")                      // external power
+            .or()
+            .number("(ddd)")                     // battery
+            .groupEnd()
             .number("(dddd)")                    // adc 1
             .groupBegin()
             .groupBegin()
@@ -166,12 +170,27 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
             .number("(d{7})")                    // odometer
             .number("(dd)(dd.dddd)([NS])")       // latitude
             .number("(ddd)(dd.dddd)([EW])")      // longitude
+            .number("dddd").optional()           // temperature
             .number("dddd")                      // serial number
             .number("xx")                        // checksum
             .any()
             .compile();
 
-    private static final Pattern PATTERN_OBD = new PatternBuilder()
+    private static final Pattern PATTERN_E2 = new PatternBuilder()
+            .text("$$")                          // header
+            .number("dddd")                      // length
+            .number("xx")                        // type
+            .number("(d+)|")                     // imei
+            .number("(dd)(dd)(dd)")              // date (yymmdd)
+            .number("(dd)(dd)(dd),")             // time (hhmmss)
+            .number("(-?d+.d+),")                // longitude
+            .number("(-?d+.d+),")                // latitude
+            .expression("(.+)")                  // rfid
+            .number("|xx")                       // checksum
+            .any()
+            .compile();
+
+    private static final Pattern PATTERN_E5 = new PatternBuilder()
             .text("$$")                          // header
             .number("dddd")                      // length
             .number("xx")                        // type
@@ -252,7 +271,20 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
         }
     }
 
-    private boolean decode12(Position position, Parser parser, Pattern pattern) {
+    private Position decode12(Channel channel, SocketAddress remoteAddress, String sentence, Pattern pattern) {
+
+        Parser parser = new Parser(pattern, sentence);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+        if (deviceSession == null) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
 
         if (parser.hasNext()) {
             position.set(Position.KEY_ALARM, decodeAlarm123(Short.parseShort(parser.next(), 16)));
@@ -278,7 +310,7 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
             year  = parser.nextInt(0);
         }
         if (year == 0) {
-            return false; // ignore invalid data
+            return null; // ignore invalid data
         }
         dateBuilder.setDate(year, month, day);
         position.setTime(dateBuilder.getDate());
@@ -320,16 +352,29 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
         int lac = parser.nextHexInt(0);
         int cid = parser.nextHexInt(0);
         if (lac != 0 && cid != 0) {
-            position.setNetwork(new Network(CellTower.fromLacCid(lac, cid)));
+            position.setNetwork(new Network(CellTower.fromLacCid(getConfig(), lac, cid)));
         }
 
         position.set(Position.PREFIX_TEMP + 1, parser.next());
         position.set(Position.KEY_ODOMETER, parser.nextDouble(0) * 1000);
 
-        return true;
+        return position;
     }
 
-    private boolean decode3(Position position, Parser parser) {
+    private Position decode3(Channel channel, SocketAddress remoteAddress, String sentence) {
+
+        Parser parser = new Parser(PATTERN3, sentence);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+        if (deviceSession == null) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
 
         if (parser.hasNext()) {
             position.set(Position.KEY_ALARM, decodeAlarm123(Short.parseShort(parser.next(), 16)));
@@ -346,7 +391,7 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
         position.set(Position.PREFIX_TEMP + 2, parser.next());
 
         position.setNetwork(new Network(
-                CellTower.fromLacCid(parser.nextHexInt(0), parser.nextHexInt(0))));
+                CellTower.fromLacCid(getConfig(), parser.nextHexInt(0), parser.nextHexInt(0))));
 
         position.setValid(parser.next().equals("A"));
         position.set(Position.KEY_SATELLITES, parser.nextInt());
@@ -358,10 +403,36 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
         position.setLatitude(parser.nextCoordinate());
         position.setLongitude(parser.nextCoordinate());
 
-        return true;
+        return position;
     }
 
-    private boolean decode4(Position position, Parser parser) {
+    private Position decode4(Channel channel, SocketAddress remoteAddress, String sentence) {
+
+        int type = Integer.parseInt(sentence.substring(6, 8), 16);
+
+        switch (type) {
+            case 0xE2:
+                return decodeE2(channel, remoteAddress, sentence);
+            case 0xE5:
+                return decodeE5(channel, remoteAddress, sentence);
+            default:
+                break;
+        }
+
+        Parser parser = new Parser(PATTERN4, sentence);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+        if (deviceSession == null) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        position.set(Position.KEY_ALARM, decodeAlarm4(type));
 
         long status = parser.nextHexLong();
 
@@ -379,8 +450,13 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
 
         position.setTime(parser.nextDateTime());
 
-        position.set(Position.KEY_BATTERY, parser.nextDouble() * 0.1);
-        position.set(Position.KEY_POWER, parser.nextDouble());
+        if (parser.hasNext(2)) {
+            position.set(Position.KEY_BATTERY, parser.nextDouble() * 0.1);
+            position.set(Position.KEY_POWER, parser.nextDouble());
+        }
+        if (parser.hasNext()) {
+            position.set(Position.KEY_BATTERY, parser.nextDouble() * 0.01);
+        }
 
         position.set(Position.PREFIX_ADC + 1, parser.next());
         position.set(Position.PREFIX_ADC + 2, parser.next());
@@ -403,7 +479,7 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
             int mcc = parser.nextInt();
             cellTower = CellTower.from(mcc, mnc, lac, cid);
         } else {
-            cellTower = CellTower.fromLacCid(lac, cid);
+            cellTower = CellTower.fromLacCid(getConfig(), lac, cid);
         }
         position.set(Position.KEY_SATELLITES, parser.nextInt());
         cellTower.setSignalStrength(parser.nextInt());
@@ -417,10 +493,48 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
         position.setLatitude(parser.nextCoordinate());
         position.setLongitude(parser.nextCoordinate());
 
-        return true;
+        return position;
     }
 
-    private boolean decodeObd(Position position, Parser parser) {
+    private Position decodeE2(Channel channel, SocketAddress remoteAddress, String sentence) {
+
+        Parser parser = new Parser(PATTERN_E2, sentence);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+        if (deviceSession == null) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        position.setValid(true);
+        position.setTime(parser.nextDateTime());
+        position.setLongitude(parser.nextDouble());
+        position.setLatitude(parser.nextDouble());
+
+        position.set(Position.KEY_DRIVER_UNIQUE_ID, parser.next());
+
+        return position;
+    }
+
+    private Position decodeE5(Channel channel, SocketAddress remoteAddress, String sentence) {
+
+        Parser parser = new Parser(PATTERN_E5, sentence);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+        if (deviceSession == null) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
 
         position.setValid(true);
         position.setTime(parser.nextDateTime());
@@ -441,7 +555,7 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
         position.set(Position.KEY_THROTTLE, parser.nextInt());
         position.set(Position.KEY_FUEL_LEVEL, parser.nextInt());
 
-        return true;
+        return position;
     }
 
     @Override
@@ -449,50 +563,23 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
             Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
 
         String sentence = (String) msg;
-        Pattern pattern = PATTERN3;
-        if (sentence.contains("$Cloud")) {
-            pattern = PATTERN_OBD;
-        } else if (sentence.charAt(2) == '0') {
-            pattern = PATTERN4;
+
+        Position position;
+        if (sentence.charAt(2) == '0') {
+            position = decode4(channel, remoteAddress, sentence);
         } else if (sentence.contains("$GPRMC")) {
-            pattern = PATTERN1;
+            position = decode12(channel, remoteAddress, sentence, PATTERN1);
         } else {
             int index = sentence.indexOf('|');
             if (index != -1 && sentence.indexOf('|', index + 1) != -1) {
-                pattern = PATTERN2;
+                position = decode12(channel, remoteAddress, sentence, PATTERN2);
+            } else {
+                position = decode3(channel, remoteAddress, sentence);
             }
         }
 
-        Parser parser = new Parser(pattern, sentence);
-        if (!parser.matches()) {
-            return null;
-        }
-
-        Position position = new Position(getProtocolName());
-
-        if (pattern == PATTERN4) {
-            position.set(Position.KEY_ALARM, decodeAlarm4(parser.nextHexInt()));
-        }
-
-        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
-        if (deviceSession == null) {
-            return null;
-        }
-        position.setDeviceId(deviceSession.getDeviceId());
-
-        boolean result;
-        if (pattern == PATTERN1 || pattern == PATTERN2) {
-            result = decode12(position, parser, pattern);
-        } else if (pattern == PATTERN3) {
-            result = decode3(position, parser);
-        } else if (pattern == PATTERN4) {
-            result = decode4(position, parser);
-        } else {
-            result = decodeObd(position, parser);
-        }
-
         if (channel != null) {
-            if (pattern == PATTERN4) {
+            if (sentence.charAt(2) == '0') {
                 String response = "$$0014AA" + sentence.substring(sentence.length() - 6, sentence.length() - 2);
                 response += String.format("%02X", Checksum.xor(response)).toUpperCase();
                 channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
@@ -501,7 +588,7 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
             }
         }
 
-        return result ? position : null;
+        return position;
     }
 
 }
diff --git a/src/main/java/org/traccar/protocol/Tr20Protocol.java b/src/main/java/org/traccar/protocol/Tr20Protocol.java
index 1b71db03f..3b3fc02b6 100644
--- a/src/main/java/org/traccar/protocol/Tr20Protocol.java
+++ b/src/main/java/org/traccar/protocol/Tr20Protocol.java
@@ -21,22 +21,26 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Tr20Protocol extends BaseProtocol {
 
-    public Tr20Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Tr20Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new Tr20ProtocolDecoder(Tr20Protocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new Tr20ProtocolDecoder(Tr20Protocol.this));
diff --git a/src/main/java/org/traccar/protocol/Tr20ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Tr20ProtocolDecoder.java
index 2f11bd152..0e1c7568b 100644
--- a/src/main/java/org/traccar/protocol/Tr20ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Tr20ProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
@@ -52,7 +52,7 @@ public class Tr20ProtocolDecoder extends BaseProtocolDecoder {
             .number("(ddd)(dd.d+),")             // longitude
             .number("(d+),")                     // speed
             .number("(d+),")                     // course
-            .number("(?:NA|[FC]?(-?d+)[^,]*),")  // temperature
+            .number("(?:NA|[BFC]?(-?d+)[^,]*),") // temperature
             .number("(x{8}),")                   // status
             .number("(d+)")                      // event
             .any()
diff --git a/src/main/java/org/traccar/protocol/Tr900Protocol.java b/src/main/java/org/traccar/protocol/Tr900Protocol.java
index b70521b35..c5f357604 100644
--- a/src/main/java/org/traccar/protocol/Tr900Protocol.java
+++ b/src/main/java/org/traccar/protocol/Tr900Protocol.java
@@ -21,22 +21,26 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Tr900Protocol extends BaseProtocol {
 
-    public Tr900Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Tr900Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new Tr900ProtocolDecoder(Tr900Protocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new Tr900ProtocolDecoder(Tr900Protocol.this));
diff --git a/src/main/java/org/traccar/protocol/Tr900ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Tr900ProtocolDecoder.java
index 319194c21..da0e8d292 100644
--- a/src/main/java/org/traccar/protocol/Tr900ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Tr900ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/TrackboxProtocol.java b/src/main/java/org/traccar/protocol/TrackboxProtocol.java
index 5da5abd64..eadcd07f9 100644
--- a/src/main/java/org/traccar/protocol/TrackboxProtocol.java
+++ b/src/main/java/org/traccar/protocol/TrackboxProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class TrackboxProtocol extends BaseProtocol {
 
-    public TrackboxProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public TrackboxProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/TrackboxProtocolDecoder.java b/src/main/java/org/traccar/protocol/TrackboxProtocolDecoder.java
index db8022738..10483d445 100644
--- a/src/main/java/org/traccar/protocol/TrackboxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TrackboxProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/TrakMateProtocol.java b/src/main/java/org/traccar/protocol/TrakMateProtocol.java
index bda5df10f..f4e7c5e60 100644
--- a/src/main/java/org/traccar/protocol/TrakMateProtocol.java
+++ b/src/main/java/org/traccar/protocol/TrakMateProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class TrakMateProtocol extends BaseProtocol {
 
-    public TrakMateProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public TrakMateProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '#'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/TrakMateProtocolDecoder.java b/src/main/java/org/traccar/protocol/TrakMateProtocolDecoder.java
index 4d5cb18f5..b1f50dc10 100644
--- a/src/main/java/org/traccar/protocol/TrakMateProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TrakMateProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/TramigoFrameDecoder.java b/src/main/java/org/traccar/protocol/TramigoFrameDecoder.java
index e4c94dc77..72cadf21a 100644
--- a/src/main/java/org/traccar/protocol/TramigoFrameDecoder.java
+++ b/src/main/java/org/traccar/protocol/TramigoFrameDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2019 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -29,9 +29,13 @@ public class TramigoFrameDecoder extends BaseFrameDecoder {
             return null;
         }
 
+        int protocol = buf.getUnsignedByte(buf.readerIndex());
+
         int length;
-        if (buf.getUnsignedByte(buf.readerIndex()) == 0x80) {
+        if (protocol == 0x80) {
             length = buf.getUnsignedShortLE(buf.readerIndex() + 6);
+        } else if (protocol == 0x02 || protocol == 0x04) {
+            length = buf.getUnsignedShortLE(buf.readerIndex() + 1);
         } else {
             length = buf.getUnsignedShort(buf.readerIndex() + 6);
         }
diff --git a/src/main/java/org/traccar/protocol/TramigoProtocol.java b/src/main/java/org/traccar/protocol/TramigoProtocol.java
index f683ccc5d..5d8baf2a9 100644
--- a/src/main/java/org/traccar/protocol/TramigoProtocol.java
+++ b/src/main/java/org/traccar/protocol/TramigoProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class TramigoProtocol extends BaseProtocol {
 
-    public TramigoProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public TramigoProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new TramigoFrameDecoder());
                 pipeline.addLast(new TramigoProtocolDecoder(TramigoProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/TramigoProtocolDecoder.java b/src/main/java/org/traccar/protocol/TramigoProtocolDecoder.java
index e42e2f670..4a9a9a58f 100644
--- a/src/main/java/org/traccar/protocol/TramigoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TramigoProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2014 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2014 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,7 +19,9 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.Checksum;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateUtil;
@@ -29,6 +31,7 @@ import org.traccar.model.Position;
 import java.net.SocketAddress;
 import java.nio.charset.StandardCharsets;
 import java.text.DateFormat;
+import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.Calendar;
 import java.util.Date;
@@ -42,9 +45,6 @@ public class TramigoProtocolDecoder extends BaseProtocolDecoder {
         super(protocol);
     }
 
-    public static final int MSG_COMPACT = 0x0100;
-    public static final int MSG_FULL = 0x00FE;
-
     private static final String[] DIRECTIONS = new String[] {"N", "NE", "E", "SE", "S", "SW", "W", "NW"};
 
     @Override
@@ -54,34 +54,47 @@ public class TramigoProtocolDecoder extends BaseProtocolDecoder {
         ByteBuf buf = (ByteBuf) msg;
 
         int protocol = buf.readUnsignedByte();
-        boolean legacy = protocol == 0x80;
+
+        if (protocol == 0x01) {
+            return decode01(channel, remoteAddress, buf);
+        } else if (protocol == 0x04) {
+            return decode04(channel, remoteAddress, buf);
+        } else if (protocol == 0x80) {
+            return decode80(channel, remoteAddress, buf);
+        }
+
+        return null;
+    }
+
+    private Position decode01(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
 
         buf.readUnsignedByte(); // version id
-        int index = legacy ? buf.readUnsignedShort() : buf.readUnsignedShortLE();
-        int type = legacy ? buf.readUnsignedShort() : buf.readUnsignedShortLE();
-        buf.readUnsignedShort(); // length
-        buf.readUnsignedShort(); // mask
-        buf.readUnsignedShort(); // checksum
-        long id = legacy ? buf.readUnsignedInt() : buf.readUnsignedIntLE();
-        buf.readUnsignedInt(); // time
+        int index = buf.readUnsignedShortLE();
+        int type = buf.readUnsignedShortLE();
 
-        Position position = new Position(getProtocolName());
-        position.set(Position.KEY_INDEX, index);
-        position.setValid(true);
+        if (type == 0x0100 || type == 0x00FE) {
 
-        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, String.valueOf(id));
-        if (deviceSession == null) {
-            return null;
-        }
-        position.setDeviceId(deviceSession.getDeviceId());
+            buf.readUnsignedShort(); // length
+            buf.readUnsignedShort(); // mask
+            buf.readUnsignedShort(); // checksum
+            long id = buf.readUnsignedIntLE();
+            buf.readUnsignedInt(); // time
 
-        if (protocol == 0x01 && (type == MSG_COMPACT || type == MSG_FULL)) {
+            DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, String.valueOf(id));
+            if (deviceSession == null) {
+                return null;
+            }
+
+            Position position = new Position(getProtocolName());
+            position.setDeviceId(deviceSession.getDeviceId());
+            position.set(Position.KEY_INDEX, index);
 
             // need to send ack?
 
             buf.readUnsignedShortLE(); // report trigger
             buf.readUnsignedShortLE(); // state flag
 
+            position.setValid(true);
             position.setLatitude(buf.readUnsignedIntLE() * 0.0000001);
             position.setLongitude(buf.readUnsignedIntLE() * 0.0000001);
 
@@ -105,56 +118,183 @@ public class TramigoProtocolDecoder extends BaseProtocolDecoder {
 
             return position;
 
-        } else if (legacy) {
+        }
 
-            if (channel != null) {
-                channel.writeAndFlush(new NetworkMessage(
-                        Unpooled.copiedBuffer("gprs,ack," + index, StandardCharsets.US_ASCII), remoteAddress));
-            }
+        return null;
 
-            String sentence = buf.toString(StandardCharsets.US_ASCII);
+    }
 
-            Pattern pattern = Pattern.compile("(-?\\d+\\.\\d+), (-?\\d+\\.\\d+)");
-            Matcher matcher = pattern.matcher(sentence);
-            if (!matcher.find()) {
-                return null;
-            }
-            position.setLatitude(Double.parseDouble(matcher.group(1)));
-            position.setLongitude(Double.parseDouble(matcher.group(2)));
-
-            pattern = Pattern.compile("([NSWE]{1,2}) with speed (\\d+) km/h");
-            matcher = pattern.matcher(sentence);
-            if (matcher.find()) {
-                for (int i = 0; i < DIRECTIONS.length; i++) {
-                    if (matcher.group(1).equals(DIRECTIONS[i])) {
-                        position.setCourse(i * 45.0);
-                        break;
-                    }
-                }
-                position.setSpeed(UnitsConverter.knotsFromKph(Double.parseDouble(matcher.group(2))));
-            }
+    private Position decode04(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
 
-            pattern = Pattern.compile("(\\d{1,2}:\\d{2}(:\\d{2})? \\w{3} \\d{1,2})");
-            matcher = pattern.matcher(sentence);
-            if (!matcher.find()) {
-                return null;
-            }
-            DateFormat dateFormat = new SimpleDateFormat(
-                    matcher.group(2) != null ? "HH:mm:ss MMM d yyyy" : "HH:mm MMM d yyyy", Locale.ENGLISH);
-            position.setTime(DateUtil.correctYear(
-                    dateFormat.parse(matcher.group(1) + " " + Calendar.getInstance().get(Calendar.YEAR))));
-
-            if (sentence.contains("Ignition on detected")) {
-                position.set(Position.KEY_IGNITION, true);
-            } else if (sentence.contains("Ignition off detected")) {
-                position.set(Position.KEY_IGNITION, false);
+        buf.readUnsignedShortLE(); // length
+        buf.readUnsignedShortLE(); // checksum
+        int index = buf.readUnsignedShortLE();
+        long id1 = buf.readUnsignedIntLE();
+        long id2 = buf.readUnsignedIntLE();
+        long time = buf.readUnsignedIntLE();
+
+        String id = String.format("%08d%07d", id1, id2);
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, id);
+        if (deviceSession == null) {
+            return null;
+        }
+
+        if (channel != null) {
+            ByteBuf response = Unpooled.buffer();
+            response.writeByte(0x04); // protocol
+            response.writeShortLE(24); // length
+            response.writeShortLE(0); // checksum
+            response.writeShortLE(index);
+            response.writeIntLE((int) id1);
+            response.writeIntLE((int) id2);
+            response.writeIntLE((int) time);
+
+            response.writeByte(0xff); // acknowledgement
+            response.writeShortLE(index);
+            response.writeShortLE(0); // success
+
+            response.setShortLE(3, Checksum.crc16(Checksum.CRC16_CCITT_FALSE, response.nioBuffer()));
+
+            channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress()));
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+        position.set(Position.KEY_INDEX, index);
+
+        position.setDeviceTime(new Date(time * 1000));
+
+        while (buf.isReadable()) {
+            int type = buf.readUnsignedByte();
+            switch (type) {
+                case 0:
+                    position.set(Position.KEY_EVENT, buf.readUnsignedShortLE());
+                    buf.readUnsignedIntLE(); // event data
+
+                    int status = buf.readUnsignedShortLE();
+                    position.set(Position.KEY_IGNITION, BitUtil.check(status, 5));
+                    position.set(Position.KEY_STATUS, status);
+
+                    position.setValid(true);
+                    position.setLatitude(buf.readIntLE() * 0.00001);
+                    position.setLongitude(buf.readIntLE() * 0.00001);
+                    position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShortLE()));
+                    position.setCourse(buf.readUnsignedShortLE());
+
+                    position.set(Position.KEY_RSSI, buf.readUnsignedByte());
+                    position.set(Position.KEY_GPS, buf.readUnsignedByte());
+                    position.set(Position.KEY_BATTERY_LEVEL, buf.readUnsignedByte());
+                    position.set(Position.KEY_ODOMETER_TRIP, buf.readUnsignedShortLE());
+                    position.set("maxAcceleration", buf.readUnsignedShortLE() * 0.001);
+                    position.set("maxDeceleration", buf.readUnsignedShortLE() * 0.001);
+                    buf.readUnsignedShortLE(); // bearing to landmark
+                    buf.readUnsignedIntLE(); // distance to landmark
+
+                    position.setFixTime(new Date(buf.readUnsignedIntLE() * 1000));
+
+                    buf.readUnsignedByte(); // reserved
+                    break;
+                case 1:
+                    buf.skipBytes(buf.readUnsignedShortLE() - 3); // landmark
+                    break;
+                case 4:
+                    buf.skipBytes(53); // trip
+                    break;
+                case 20:
+                    buf.skipBytes(32); // extended
+                    break;
+                case 22:
+                    buf.readUnsignedByte(); // zone flag
+                    buf.skipBytes(buf.readUnsignedShortLE()); // zone name
+                    break;
+                case 30:
+                    buf.skipBytes(79); // system status
+                    break;
+                case 40:
+                    buf.skipBytes(40); // analog
+                    break;
+                case 50:
+                    buf.skipBytes(buf.readUnsignedShortLE() - 3); // console
+                    break;
+                case 255:
+                    buf.skipBytes(4); // acknowledgement
+                    break;
+                default:
+                    throw new IllegalArgumentException(String.format("Unknown type %d", type));
             }
+        }
 
-            return position;
+        return position.getValid() ? position : null;
+
+    }
 
+    private Position decode80(Channel channel, SocketAddress remoteAddress, ByteBuf buf) throws ParseException {
+
+        buf.readUnsignedByte(); // version id
+        int index = buf.readUnsignedShort();
+        buf.readUnsignedShort(); // type
+
+        buf.readUnsignedShort(); // length
+        buf.readUnsignedShort(); // mask
+        buf.readUnsignedShort(); // checksum
+        long id = buf.readUnsignedInt();
+        buf.readUnsignedInt(); // time
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, String.valueOf(id));
+        if (deviceSession == null) {
+            return null;
         }
 
-        return null;
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+        position.set(Position.KEY_INDEX, index);
+
+        if (channel != null) {
+            channel.writeAndFlush(new NetworkMessage(
+                    Unpooled.copiedBuffer("gprs,ack," + index, StandardCharsets.US_ASCII), remoteAddress));
+        }
+
+        String sentence = buf.toString(StandardCharsets.US_ASCII);
+
+        Pattern pattern = Pattern.compile("(-?\\d+\\.\\d+), (-?\\d+\\.\\d+)");
+        Matcher matcher = pattern.matcher(sentence);
+        if (!matcher.find()) {
+            return null;
+        }
+        position.setLatitude(Double.parseDouble(matcher.group(1)));
+        position.setLongitude(Double.parseDouble(matcher.group(2)));
+        position.setValid(true);
+
+        pattern = Pattern.compile("([NSWE]{1,2}) with speed (\\d+) km/h");
+        matcher = pattern.matcher(sentence);
+        if (matcher.find()) {
+            for (int i = 0; i < DIRECTIONS.length; i++) {
+                if (matcher.group(1).equals(DIRECTIONS[i])) {
+                    position.setCourse(i * 45.0);
+                    break;
+                }
+            }
+            position.setSpeed(UnitsConverter.knotsFromKph(Double.parseDouble(matcher.group(2))));
+        }
+
+        pattern = Pattern.compile("(\\d{1,2}:\\d{2}(:\\d{2})? \\w{3} \\d{1,2})");
+        matcher = pattern.matcher(sentence);
+        if (!matcher.find()) {
+            return null;
+        }
+        DateFormat dateFormat = new SimpleDateFormat(
+                matcher.group(2) != null ? "HH:mm:ss MMM d yyyy" : "HH:mm MMM d yyyy", Locale.ENGLISH);
+        position.setTime(DateUtil.correctYear(
+                dateFormat.parse(matcher.group(1) + " " + Calendar.getInstance().get(Calendar.YEAR))));
+
+        if (sentence.contains("Ignition on detected")) {
+            position.set(Position.KEY_IGNITION, true);
+        } else if (sentence.contains("Ignition off detected")) {
+            position.set(Position.KEY_IGNITION, false);
+        }
+
+        return position;
+
     }
 
 }
diff --git a/src/main/java/org/traccar/protocol/TranSyncProtocol.java b/src/main/java/org/traccar/protocol/TranSyncProtocol.java
new file mode 100644
index 000000000..fb37a1ab4
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/TranSyncProtocol.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
+import org.traccar.BaseProtocol;
+import org.traccar.PipelineBuilder;
+import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
+
+public class TranSyncProtocol extends BaseProtocol {
+
+    @Inject
+    public TranSyncProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
+            @Override
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
+                pipeline.addLast(new LengthFieldBasedFrameDecoder(256, 2, 1, 2, 0));
+                pipeline.addLast(new TranSyncProtocolDecoder(TranSyncProtocol.this));
+            }
+        });
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/TranSyncProtocolDecoder.java b/src/main/java/org/traccar/protocol/TranSyncProtocolDecoder.java
new file mode 100644
index 000000000..816b5d2cf
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/TranSyncProtocolDecoder.java
@@ -0,0 +1,166 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.ByteBufUtil;
+import io.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.Protocol;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.DateBuilder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.CellTower;
+import org.traccar.model.Network;
+import org.traccar.model.Position;
+import org.traccar.session.DeviceSession;
+
+import java.net.SocketAddress;
+
+public class TranSyncProtocolDecoder extends BaseProtocolDecoder {
+
+    public TranSyncProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    private String decodeAlarm(int value) {
+        switch (value) {
+            case 4:
+                return Position.ALARM_LOW_BATTERY;
+            case 6:
+                return Position.ALARM_POWER_RESTORED;
+            case 10:
+                return Position.ALARM_SOS;
+            case 13:
+                return Position.ALARM_BRAKING;
+            case 14:
+                return Position.ALARM_ACCELERATION;
+            case 17:
+                return Position.ALARM_OVERSPEED;
+            case 23:
+                return Position.ALARM_ACCIDENT;
+            default:
+                return null;
+        }
+    }
+
+    @Override
+    protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        ByteBuf buf = (ByteBuf) msg;
+
+        buf.readUnsignedShort(); // header
+        buf.readByte(); // length
+
+        int lac = buf.readUnsignedShort();
+
+        String deviceId = ByteBufUtil.hexDump(buf.readSlice(8));
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, deviceId);
+        if (deviceSession == null) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        buf.readUnsignedShort(); // index
+        buf.readUnsignedByte(); // type
+
+        position.setTime(new DateBuilder()
+                .setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
+                .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
+                .getDate());
+
+        double latitude = buf.readUnsignedInt() / 1800000.0;
+        double longitude = buf.readUnsignedInt() / 1800000.0;
+
+        position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte()));
+        position.setCourse(buf.readUnsignedShort());
+
+        int mnc = buf.readUnsignedByte();
+        int cid = buf.readUnsignedShort();
+        int status0 = buf.readUnsignedByte();
+
+        position.setValid(BitUtil.check(status0, 0));
+        position.setLatitude(BitUtil.check(status0, 1) ? latitude : -latitude);
+        position.setLongitude(BitUtil.check(status0, 2) ? longitude : -longitude);
+
+        position.set(Position.PREFIX_OUT + 1, BitUtil.check(status0, 7));
+        position.set(Position.PREFIX_OUT + 2, BitUtil.check(status0, 6));
+        position.set(Position.PREFIX_IN + 3, BitUtil.check(status0, 5));
+        if (BitUtil.check(status0, 4)) {
+            position.set(Position.KEY_ALARM, Position.ALARM_POWER_OFF);
+        }
+        position.set(Position.KEY_IGNITION, BitUtil.check(status0, 3));
+
+        buf.readUnsignedByte(); // reserved
+
+        int event = buf.readUnsignedByte();
+        position.set(Position.KEY_ALARM, decodeAlarm(event));
+        position.set(Position.KEY_EVENT, event);
+
+        int status3 = buf.readUnsignedByte();
+        if (BitUtil.check(status3, 7)) {
+            position.set(Position.KEY_ARCHIVE, true);
+        }
+        if (BitUtil.check(status3, 5)) {
+            position.set(Position.KEY_ALARM, Position.ALARM_GPS_ANTENNA_CUT);
+        }
+
+        int rssi = buf.readUnsignedByte();
+        CellTower cellTower = CellTower.fromLacCid(getConfig(), lac, cid);
+        cellTower.setMobileNetworkCode(mnc);
+        cellTower.setSignalStrength(rssi);
+        position.setNetwork(new Network(cellTower));
+
+        position.set(Position.KEY_BATTERY, (double) (buf.readUnsignedByte() / 10));
+        position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+        position.set(Position.KEY_HDOP, buf.readUnsignedByte());
+        position.set(Position.PREFIX_ADC + 1, (short) buf.readUnsignedShort());
+
+        if (buf.readableBytes() > 5) {
+            buf.readUnsignedByte(); // odometer id
+            int length = buf.readUnsignedByte();
+            if (length > 0) {
+                position.set(Position.KEY_ODOMETER, buf.readBytes(length).readInt());
+            }
+        }
+        if (buf.readableBytes() > 5) {
+            buf.readUnsignedByte(); // rfid id
+            int length = buf.readUnsignedByte();
+            if (length > 0) {
+                position.set(Position.KEY_DRIVER_UNIQUE_ID, ByteBufUtil.hexDump(buf.readSlice(length)));
+            }
+        }
+        if (buf.readableBytes() > 5) {
+            buf.readUnsignedByte(); // adc2 id
+            int length = buf.readUnsignedByte();
+            if (length > 0) {
+                position.set(Position.PREFIX_ADC + 2, buf.readUnsignedShort());
+            }
+        }
+        if (buf.readableBytes() > 5) {
+            buf.readUnsignedByte(); // adc3 id
+            int length = buf.readUnsignedByte();
+            if (length > 0 && length <= buf.readableBytes() - 2) {
+                position.set(Position.PREFIX_ADC + 3, buf.readUnsignedShort());
+            }
+        }
+
+        return position;
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/TrvProtocol.java b/src/main/java/org/traccar/protocol/TrvProtocol.java
index 99a164cf1..7bdf3d2d0 100644
--- a/src/main/java/org/traccar/protocol/TrvProtocol.java
+++ b/src/main/java/org/traccar/protocol/TrvProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class TrvProtocol extends BaseProtocol {
 
-    public TrvProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public TrvProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '#'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/TrvProtocolDecoder.java b/src/main/java/org/traccar/protocol/TrvProtocolDecoder.java
index e62cdf404..9df29ae1b 100644
--- a/src/main/java/org/traccar/protocol/TrvProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TrvProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/Tt8850Protocol.java b/src/main/java/org/traccar/protocol/Tt8850Protocol.java
index 66a13da9e..8e2800d90 100644
--- a/src/main/java/org/traccar/protocol/Tt8850Protocol.java
+++ b/src/main/java/org/traccar/protocol/Tt8850Protocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Tt8850Protocol extends BaseProtocol {
 
-    public Tt8850Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Tt8850Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, "$"));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/Tt8850ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Tt8850ProtocolDecoder.java
index 1010528c4..cbc983000 100644
--- a/src/main/java/org/traccar/protocol/Tt8850ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Tt8850ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/TytanProtocol.java b/src/main/java/org/traccar/protocol/TytanProtocol.java
index 32e9acae1..4fd3c807f 100644
--- a/src/main/java/org/traccar/protocol/TytanProtocol.java
+++ b/src/main/java/org/traccar/protocol/TytanProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class TytanProtocol extends BaseProtocol {
 
-    public TytanProtocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public TytanProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new TytanProtocolDecoder(TytanProtocol.this));
             }
         });
diff --git a/src/main/java/org/traccar/protocol/TytanProtocolDecoder.java b/src/main/java/org/traccar/protocol/TytanProtocolDecoder.java
index 93d3a63d2..6169e0545 100644
--- a/src/main/java/org/traccar/protocol/TytanProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TytanProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/TzoneProtocol.java b/src/main/java/org/traccar/protocol/TzoneProtocol.java
index 6e855d138..2df721049 100644
--- a/src/main/java/org/traccar/protocol/TzoneProtocol.java
+++ b/src/main/java/org/traccar/protocol/TzoneProtocol.java
@@ -15,18 +15,21 @@
  */
 package org.traccar.protocol;
 
+import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 
-import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
+import jakarta.inject.Inject;
 
 public class TzoneProtocol extends BaseProtocol {
 
-    public TzoneProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public TzoneProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(256, 2, 2, 2, 0));
                 pipeline.addLast(new TzoneProtocolDecoder(TzoneProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/TzoneProtocolDecoder.java b/src/main/java/org/traccar/protocol/TzoneProtocolDecoder.java
index 819c42471..f0b1e709d 100644
--- a/src/main/java/org/traccar/protocol/TzoneProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TzoneProtocolDecoder.java
@@ -20,8 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
@@ -205,30 +204,39 @@ public class TzoneProtocolDecoder extends BaseProtocolDecoder {
 
     }
 
-    private void decodeTags(Position position, ByteBuf buf) {
+    private void decodeTags(Position position, ByteBuf buf, int hardware) {
 
         int blockLength = buf.readUnsignedShort();
         int blockEnd = buf.readerIndex() + blockLength;
 
         if (blockLength > 0) {
 
-            buf.readUnsignedByte(); // tag type
+            int type = buf.readUnsignedByte();
 
-            int count = buf.readUnsignedByte();
-            int tagLength = buf.readUnsignedByte();
+            if (hardware != 0x153 || type >= 2) {
 
-            for (int i = 1; i <= count; i++) {
-                int tagEnd = buf.readerIndex() + tagLength;
+                int count = buf.readUnsignedByte();
+                int tagLength = buf.readUnsignedByte();
+
+                for (int i = 1; i <= count; i++) {
+                    int tagEnd = buf.readerIndex() + tagLength;
+
+                    buf.readUnsignedByte(); // status
+                    buf.readUnsignedShortLE(); // battery voltage
 
-                buf.readUnsignedByte(); // status
-                buf.readUnsignedShortLE(); // battery voltage
+                    position.set(Position.PREFIX_TEMP + i, (buf.readShortLE() & 0x3fff) * 0.1);
+
+                    buf.readUnsignedByte(); // humidity
+                    buf.readUnsignedByte(); // rssi
+
+                    buf.readerIndex(tagEnd);
+                }
 
-                position.set(Position.PREFIX_TEMP + i, (buf.readShortLE() & 0x3fff) * 0.1);
+            } else if (type == 1) {
 
-                buf.readUnsignedByte(); // humidity
-                buf.readUnsignedByte(); // rssi
+                position.set(Position.KEY_CARD, buf.readCharSequence(
+                        blockEnd - buf.readerIndex(), StandardCharsets.UTF_8).toString());
 
-                buf.readerIndex(tagEnd);
             }
 
         }
@@ -284,7 +292,7 @@ public class TzoneProtocolDecoder extends BaseProtocolDecoder {
             if (hardware == 0x10A || hardware == 0x10B || hardware == 0x406) {
 
                 position.setNetwork(new Network(
-                        CellTower.fromLacCid(buf.readUnsignedShort(), buf.readUnsignedShort())));
+                        CellTower.fromLacCid(getConfig(), buf.readUnsignedShort(), buf.readUnsignedShort())));
 
             } else if (hardware == 0x407) {
 
@@ -365,13 +373,13 @@ public class TzoneProtocolDecoder extends BaseProtocolDecoder {
 
         }
 
-        if (hardware == 0x406) {
+        if (hardware == 0x153 || hardware == 0x406) {
 
-            decodeTags(position, buf);
+            decodeTags(position, buf, hardware);
 
         }
 
-        if (Context.getConfig().getBoolean(Keys.PROTOCOL_ACK.withPrefix(getProtocolName()))) {
+        if (getConfig().getBoolean(Keys.PROTOCOL_ACK.withPrefix(getProtocolName()))) {
             sendResponse(channel, remoteAddress, buf.getUnsignedShort(buf.writerIndex() - 6));
         }
 
diff --git a/src/main/java/org/traccar/protocol/UlbotechProtocol.java b/src/main/java/org/traccar/protocol/UlbotechProtocol.java
index dfe5235f0..f8c4f1960 100644
--- a/src/main/java/org/traccar/protocol/UlbotechProtocol.java
+++ b/src/main/java/org/traccar/protocol/UlbotechProtocol.java
@@ -18,16 +18,20 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class UlbotechProtocol extends BaseProtocol {
 
-    public UlbotechProtocol() {
+    @Inject
+    public UlbotechProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new UlbotechFrameDecoder());
                 pipeline.addLast(new UlbotechProtocolEncoder(UlbotechProtocol.this));
                 pipeline.addLast(new UlbotechProtocolDecoder(UlbotechProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/UlbotechProtocolDecoder.java b/src/main/java/org/traccar/protocol/UlbotechProtocolDecoder.java
index 7fec0bf8b..c9b35158e 100644
--- a/src/main/java/org/traccar/protocol/UlbotechProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/UlbotechProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -37,6 +37,7 @@ import org.traccar.model.Position;
 import java.net.SocketAddress;
 import java.nio.charset.StandardCharsets;
 import java.util.Date;
+import java.util.TimeZone;
 import java.util.regex.Pattern;
 
 public class UlbotechProtocolDecoder extends BaseProtocolDecoder {
@@ -214,16 +215,17 @@ public class UlbotechProtocolDecoder extends BaseProtocolDecoder {
             return null;
         }
 
-        if (deviceSession.getTimeZone() == null) {
-            deviceSession.setTimeZone(getTimeZone(deviceSession.getDeviceId()));
+        if (!deviceSession.contains(DeviceSession.KEY_TIMEZONE)) {
+            deviceSession.set(DeviceSession.KEY_TIMEZONE, getTimeZone(deviceSession.getDeviceId()));
         }
 
         Position position = new Position(getProtocolName());
         position.setDeviceId(deviceSession.getDeviceId());
 
+        TimeZone timeZone = deviceSession.get(DeviceSession.KEY_TIMEZONE);
         long seconds = buf.readUnsignedInt() & 0x7fffffffL;
         seconds += 946684800L; // 2000-01-01 00:00
-        seconds -= deviceSession.getTimeZone().getRawOffset() / 1000;
+        seconds -= timeZone.getRawOffset() / 1000;
         Date time = new Date(seconds * 1000);
 
         boolean hasLocation = false;
diff --git a/src/main/java/org/traccar/protocol/UproProtocol.java b/src/main/java/org/traccar/protocol/UproProtocol.java
index 4e60ffeb6..cbec9777d 100644
--- a/src/main/java/org/traccar/protocol/UproProtocol.java
+++ b/src/main/java/org/traccar/protocol/UproProtocol.java
@@ -20,13 +20,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class UproProtocol extends BaseProtocol {
 
-    public UproProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public UproProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '#'));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new UproProtocolDecoder(UproProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/UproProtocolDecoder.java b/src/main/java/org/traccar/protocol/UproProtocolDecoder.java
index 9f236a7e5..ed714e464 100644
--- a/src/main/java/org/traccar/protocol/UproProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/UproProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
@@ -67,12 +67,11 @@ public class UproProtocolDecoder extends BaseProtocolDecoder {
             DateBuilder dateBuilder = new DateBuilder()
                     .setTime(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0));
 
-            position.setValid(true);
             position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_MIN_MIN));
             position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_MIN_MIN));
 
             int flags = parser.nextInt(0);
-            position.setValid(BitUtil.check(flags, 0));
+            position.setValid(!BitUtil.check(flags, 0));
             if (!BitUtil.check(flags, 1)) {
                 position.setLatitude(-position.getLatitude());
             }
diff --git a/src/main/java/org/traccar/protocol/UuxProtocol.java b/src/main/java/org/traccar/protocol/UuxProtocol.java
index 41b59d829..63727cb94 100644
--- a/src/main/java/org/traccar/protocol/UuxProtocol.java
+++ b/src/main/java/org/traccar/protocol/UuxProtocol.java
@@ -19,13 +19,17 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class UuxProtocol extends BaseProtocol {
 
-    public UuxProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public UuxProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 3, 1));
                 pipeline.addLast(new UuxProtocolDecoder(UuxProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/UuxProtocolDecoder.java b/src/main/java/org/traccar/protocol/UuxProtocolDecoder.java
index 1081fa811..b9065e7f3 100644
--- a/src/main/java/org/traccar/protocol/UuxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/UuxProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/V680Protocol.java b/src/main/java/org/traccar/protocol/V680Protocol.java
index dc0922cd4..587a0c8f7 100644
--- a/src/main/java/org/traccar/protocol/V680Protocol.java
+++ b/src/main/java/org/traccar/protocol/V680Protocol.java
@@ -21,22 +21,26 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class V680Protocol extends BaseProtocol {
 
-    public V680Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public V680Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, "##"));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new V680ProtocolDecoder(V680Protocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new V680ProtocolDecoder(V680Protocol.this));
diff --git a/src/main/java/org/traccar/protocol/V680ProtocolDecoder.java b/src/main/java/org/traccar/protocol/V680ProtocolDecoder.java
index 40267022b..237aea39b 100644
--- a/src/main/java/org/traccar/protocol/V680ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/V680ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/VisiontekProtocol.java b/src/main/java/org/traccar/protocol/VisiontekProtocol.java
index 2c6af45a8..83bcd37ff 100644
--- a/src/main/java/org/traccar/protocol/VisiontekProtocol.java
+++ b/src/main/java/org/traccar/protocol/VisiontekProtocol.java
@@ -21,13 +21,17 @@ import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class VisiontekProtocol extends BaseProtocol {
 
-    public VisiontekProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public VisiontekProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, '#'));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/VisiontekProtocolDecoder.java b/src/main/java/org/traccar/protocol/VisiontekProtocolDecoder.java
index c4787bda2..9ab871bfe 100644
--- a/src/main/java/org/traccar/protocol/VisiontekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/VisiontekProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/VltProtocol.java b/src/main/java/org/traccar/protocol/VltProtocol.java
new file mode 100644
index 000000000..005cd8ffb
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/VltProtocol.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.handler.codec.http.HttpObjectAggregator;
+import io.netty.handler.codec.http.HttpRequestDecoder;
+import io.netty.handler.codec.http.HttpResponseEncoder;
+import org.traccar.BaseProtocol;
+import org.traccar.PipelineBuilder;
+import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
+
+public class VltProtocol extends BaseProtocol {
+
+    @Inject
+    public VltProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
+            @Override
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
+                pipeline.addLast(new HttpResponseEncoder());
+                pipeline.addLast(new HttpRequestDecoder());
+                pipeline.addLast(new HttpObjectAggregator(65535));
+                pipeline.addLast(new VltProtocolDecoder(VltProtocol.this));
+            }
+        });
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/VltProtocolDecoder.java b/src/main/java/org/traccar/protocol/VltProtocolDecoder.java
new file mode 100644
index 000000000..01c0563f5
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/VltProtocolDecoder.java
@@ -0,0 +1,139 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.channel.Channel;
+import io.netty.handler.codec.http.FullHttpRequest;
+import io.netty.handler.codec.http.HttpResponseStatus;
+import io.netty.handler.codec.http.QueryStringDecoder;
+import org.traccar.BaseHttpProtocolDecoder;
+import org.traccar.Protocol;
+import org.traccar.helper.Parser;
+import org.traccar.helper.PatternBuilder;
+import org.traccar.model.CellTower;
+import org.traccar.model.Network;
+import org.traccar.model.Position;
+import org.traccar.session.DeviceSession;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.regex.Pattern;
+
+public class VltProtocolDecoder extends BaseHttpProtocolDecoder {
+
+    public VltProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    private static final Pattern PATTERN = new PatternBuilder()
+            .number("(dd)")                      // alert id
+            .expression("([HL])")                // history
+            .number("([01])")                    // validity
+            .number("(dd)(dd)(dd)")              // date (ddmmyy)
+            .number("(dd)(dd)(dd)")              // time (hhmmss)
+            .number("(d{3}.d{6})([NS])")         // latitude
+            .number("(d{3}.d{6})([EW])")         // longitude
+            .number("(d{3})")                    // mcc
+            .expression("(x*[0-9]+)")            // mnc
+            .number("(x{4})")                    // lac
+            .number("(d{9})")                    // cid
+            .number("(d{3}.d{2})")               // speed
+            .number("(d{3}.d{2})")               // course
+            .number("(d{2})")                    // satellites
+            .number("(d{2})")                    // hdop
+            .number("(d{2})")                    // rssi
+            .number("([01])")                    // ignition
+            .number("([01])")                    // charging
+            .expression("([HMS])")               // vehicle mode
+            .compile();
+
+    private Position decodePosition(DeviceSession deviceSession, String sentence) {
+
+        Parser parser = new Parser(PATTERN, sentence);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        position.set(Position.KEY_EVENT, parser.nextInt());
+        position.set(Position.KEY_ARCHIVE, parser.next().equals("H") ? true : null);
+
+        position.setValid(parser.nextInt() > 0);
+        position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
+        position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
+        position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
+
+        int mcc = parser.nextInt();
+        int mnc = Integer.parseInt(parser.next().replaceAll("x", ""));
+        int lac = parser.nextHexInt();
+        int cid = parser.nextInt();
+
+        position.setSpeed(parser.nextDouble());
+        position.setCourse(parser.nextDouble());
+
+        position.set(Position.KEY_SATELLITES, parser.nextInt());
+        position.set(Position.KEY_HDOP, parser.nextInt());
+
+        position.setNetwork(new Network(CellTower.from(mcc, mnc, lac, cid, parser.nextInt())));
+
+        position.set(Position.KEY_IGNITION, parser.nextInt() > 0);
+        position.set(Position.KEY_CHARGE, parser.nextInt() > 0);
+        position.set(Position.KEY_MOTION, parser.next().equals("M"));
+
+        return position;
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        FullHttpRequest request = (FullHttpRequest) msg;
+        QueryStringDecoder decoder = new QueryStringDecoder(
+                request.content().toString(StandardCharsets.US_ASCII), false);
+        String sentence = decoder.parameters().get("vltdata").iterator().next();
+
+        int index = 0;
+        String type = sentence.substring(index, index += 3);
+        String imei = sentence.substring(index, index += 15);
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
+        if (deviceSession == null) {
+            sendResponse(channel, HttpResponseStatus.BAD_REQUEST);
+            return null;
+        }
+
+        sendResponse(channel, HttpResponseStatus.OK);
+
+        switch (type) {
+            case "NRM":
+                return decodePosition(deviceSession, sentence.substring(3 + 15));
+            case "BTH":
+                List<Position> positions = new LinkedList<>();
+                int count = Integer.parseInt(sentence.substring(index, index += 3));
+                for (int i = 0; i < count; i++) {
+                    positions.add(decodePosition(deviceSession, sentence.substring(index, index += 78)));
+                }
+                return positions;
+            default:
+                return null;
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/VnetProtocol.java b/src/main/java/org/traccar/protocol/VnetProtocol.java
index 0fed30e13..6ccc54483 100644
--- a/src/main/java/org/traccar/protocol/VnetProtocol.java
+++ b/src/main/java/org/traccar/protocol/VnetProtocol.java
@@ -19,15 +19,19 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 
 import java.nio.ByteOrder;
 
+import jakarta.inject.Inject;
+
 public class VnetProtocol extends BaseProtocol {
 
-    public VnetProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public VnetProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(ByteOrder.LITTLE_ENDIAN, 1500, 4, 2, 12, 0, true));
                 pipeline.addLast(new VnetProtocolDecoder(VnetProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/VnetProtocolDecoder.java b/src/main/java/org/traccar/protocol/VnetProtocolDecoder.java
index 1ee00bd3f..048c89e1e 100644
--- a/src/main/java/org/traccar/protocol/VnetProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/VnetProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
diff --git a/src/main/java/org/traccar/protocol/Vt200Protocol.java b/src/main/java/org/traccar/protocol/Vt200Protocol.java
index 2a9ef6ab5..97e64b74f 100644
--- a/src/main/java/org/traccar/protocol/Vt200Protocol.java
+++ b/src/main/java/org/traccar/protocol/Vt200Protocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Vt200Protocol extends BaseProtocol {
 
-    public Vt200Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Vt200Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new Vt200FrameDecoder());
                 pipeline.addLast(new Vt200ProtocolDecoder(Vt200Protocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/Vt200ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Vt200ProtocolDecoder.java
index 84ad09caa..1ad15f39c 100644
--- a/src/main/java/org/traccar/protocol/Vt200ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Vt200ProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
 import org.traccar.helper.BitUtil;
@@ -123,7 +123,7 @@ public class Vt200ProtocolDecoder extends BaseProtocolDecoder {
 
             position.set("tripStart", decodeDate(buf).getTime());
             position.set("tripEnd", decodeDate(buf).getTime());
-            position.set("drivingTime", buf.readUnsignedShort());
+            position.set(Position.KEY_DRIVING_TIME, buf.readUnsignedShort());
 
             position.set(Position.KEY_FUEL_CONSUMPTION, buf.readUnsignedInt());
             position.set(Position.KEY_ODOMETER_TRIP, buf.readUnsignedInt());
diff --git a/src/main/java/org/traccar/protocol/VtfmsProtocol.java b/src/main/java/org/traccar/protocol/VtfmsProtocol.java
index 2826a86e6..91453c413 100644
--- a/src/main/java/org/traccar/protocol/VtfmsProtocol.java
+++ b/src/main/java/org/traccar/protocol/VtfmsProtocol.java
@@ -15,26 +15,29 @@
  */
 package org.traccar.protocol;
 
+import io.netty.handler.codec.string.StringDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 
-import io.netty.handler.codec.string.StringDecoder;
+import jakarta.inject.Inject;
 
 public class VtfmsProtocol extends BaseProtocol {
 
-    public VtfmsProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public VtfmsProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new VtfmsFrameDecoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new VtfmsProtocolDecoder(VtfmsProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new VtfmsProtocolDecoder(VtfmsProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/VtfmsProtocolDecoder.java b/src/main/java/org/traccar/protocol/VtfmsProtocolDecoder.java
index 17fac4311..bf0cdcb51 100644
--- a/src/main/java/org/traccar/protocol/VtfmsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/VtfmsProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/WatchFrameDecoder.java b/src/main/java/org/traccar/protocol/WatchFrameDecoder.java
index f99bd52e2..9dfae8726 100644
--- a/src/main/java/org/traccar/protocol/WatchFrameDecoder.java
+++ b/src/main/java/org/traccar/protocol/WatchFrameDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -27,7 +27,26 @@ public class WatchFrameDecoder extends BaseFrameDecoder {
     protected Object decode(
             ChannelHandlerContext ctx, Channel channel, ByteBuf buf) throws Exception {
 
-        int endIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) ']') + 1;
+        int brackets = 0;
+        int endIndex = -1;
+        for (int i = buf.readerIndex(); i < buf.writerIndex(); i++) {
+            byte b = buf.getByte(i);
+            switch (b) {
+                case '[':
+                    brackets += 1;
+                    break;
+                case ']':
+                    brackets -= 1;
+                    break;
+                default:
+                    break;
+            }
+            if (brackets == 0 && i > buf.readerIndex()) {
+                endIndex = i + 1;
+                break;
+            }
+        }
+
         if (endIndex > 0) {
             ByteBuf frame = Unpooled.buffer();
             while (buf.readerIndex() < endIndex) {
diff --git a/src/main/java/org/traccar/protocol/WatchProtocol.java b/src/main/java/org/traccar/protocol/WatchProtocol.java
index 6dc3bf9fb..aee70b6ec 100644
--- a/src/main/java/org/traccar/protocol/WatchProtocol.java
+++ b/src/main/java/org/traccar/protocol/WatchProtocol.java
@@ -18,11 +18,15 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
+import jakarta.inject.Inject;
+
 public class WatchProtocol extends BaseProtocol {
 
-    public WatchProtocol() {
+    @Inject
+    public WatchProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM,
                 Command.TYPE_POSITION_SINGLE,
@@ -40,9 +44,9 @@ public class WatchProtocol extends BaseProtocol {
                 Command.TYPE_VOICE_MESSAGE,
                 Command.TYPE_SET_TIMEZONE,
                 Command.TYPE_SET_INDICATOR);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new WatchFrameDecoder());
                 pipeline.addLast(new WatchProtocolEncoder(WatchProtocol.this));
                 pipeline.addLast(new WatchProtocolDecoder(WatchProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java b/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java
index 4ab7875b7..b586f4e92 100644
--- a/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,14 +18,13 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.helper.StringUtil;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
+import org.traccar.helper.BufferUtil;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
 import org.traccar.helper.UnitsConverter;
@@ -41,7 +40,7 @@ import java.util.regex.Pattern;
 
 public class WatchProtocolDecoder extends BaseProtocolDecoder {
 
-    private static final Logger LOGGER = LoggerFactory.getLogger(WatchProtocolDecoder.class);
+    private ByteBuf audio;
 
     public WatchProtocolDecoder(Protocol protocol) {
         super(protocol);
@@ -52,7 +51,7 @@ public class WatchProtocolDecoder extends BaseProtocolDecoder {
             .number("(dd)(dd)(dd),")             // time (hhmmss)
             .expression("([AV]),")               // validity
             .number(" *(-?d+.d+),")              // latitude
-            .expression("([NS]),")
+            .expression("([NS])?,")
             .number(" *(-?d+.d+),")              // longitude
             .expression("([EW])?,")
             .number("(d+.?d*),")                 // speed
@@ -141,36 +140,45 @@ public class WatchProtocolDecoder extends BaseProtocolDecoder {
         String[] values = parser.next().split(",");
         int index = 0;
 
-        Network network = new Network();
+        if (values.length < 4 || !StringUtil.containsHex(values[index + 3])) {
 
-        int cellCount = Integer.parseInt(values[index++]);
-        index += 1; // timing advance
-        int mcc = !values[index].isEmpty() ? Integer.parseInt(values[index++]) : 0;
-        int mnc = !values[index].isEmpty() ? Integer.parseInt(values[index++]) : 0;
+            Network network = new Network();
 
-        for (int i = 0; i < cellCount; i++) {
-            int lac = Integer.parseInt(values[index++]);
-            int cid = Integer.parseInt(values[index++]);
-            String rssi = values[index++];
-            if (!rssi.isEmpty()) {
-                network.addCellTower(CellTower.from(mcc, mnc, lac, cid, Integer.parseInt(rssi)));
-            } else {
-                network.addCellTower(CellTower.from(mcc, mnc, lac, cid));
+            int cellCount = Integer.parseInt(values[index++]);
+            if (cellCount > 0) {
+                index += 1; // timing advance
+                int mcc = !values[index].isEmpty() ? Integer.parseInt(values[index++]) : 0;
+                int mnc = !values[index].isEmpty() ? Integer.parseInt(values[index++]) : 0;
+
+                for (int i = 0; i < cellCount; i++) {
+                    int lac = Integer.parseInt(values[index], StringUtil.containsHex(values[index++]) ? 16 : 10);
+                    int cid = Integer.parseInt(values[index], StringUtil.containsHex(values[index++]) ? 16 : 10);
+                    String rssi = values[index++];
+                    if (!rssi.isEmpty()) {
+                        network.addCellTower(CellTower.from(mcc, mnc, lac, cid, Integer.parseInt(rssi)));
+                    } else {
+                        network.addCellTower(CellTower.from(mcc, mnc, lac, cid));
+                    }
+                }
             }
-        }
 
-        if (index < values.length && !values[index].isEmpty()) {
-            int wifiCount = Integer.parseInt(values[index++]);
+            if (index < values.length && !values[index].isEmpty()) {
+                int wifiCount = Integer.parseInt(values[index++]);
 
-            for (int i = 0; i < wifiCount; i++) {
-                index += 1; // wifi name
-                network.addWifiAccessPoint(WifiAccessPoint.from(
-                        values[index++], Integer.parseInt(values[index++])));
+                for (int i = 0; i < wifiCount; i++) {
+                    index += 1; // wifi name
+                    String macAddress = values[index++];
+                    String rssi = values[index++];
+                    if (!macAddress.isEmpty() && !macAddress.equals("0") && !rssi.isEmpty()) {
+                        network.addWifiAccessPoint(WifiAccessPoint.from(macAddress, Integer.parseInt(rssi)));
+                    }
+                }
+            }
+
+            if (network.getCellTowers() != null || network.getWifiAccessPoints() != null) {
+                position.setNetwork(network);
             }
-        }
 
-        if (network.getCellTowers() != null || network.getWifiAccessPoints() != null) {
-            position.setNetwork(network);
         }
 
         return position;
@@ -260,6 +268,9 @@ public class WatchProtocolDecoder extends BaseProtocolDecoder {
             Position position = decodePosition(deviceSession, buf.toString(StandardCharsets.US_ASCII));
 
             if (type.startsWith("AL")) {
+                if (position != null && !position.hasAttribute(Position.KEY_ALARM)) {
+                    position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
+                }
                 sendResponse(channel, id, index, "AL");
             }
 
@@ -273,7 +284,9 @@ public class WatchProtocolDecoder extends BaseProtocolDecoder {
                 || type.equalsIgnoreCase("HEART")
                 || type.equalsIgnoreCase("BLOOD")
                 || type.equalsIgnoreCase("BPHRT")
-                || type.equalsIgnoreCase("btemp2")) {
+                || type.equalsIgnoreCase("TEMP")
+                || type.equalsIgnoreCase("btemp2")
+                || type.equalsIgnoreCase("oxygen")) {
 
             if (buf.isReadable()) {
 
@@ -285,10 +298,14 @@ public class WatchProtocolDecoder extends BaseProtocolDecoder {
                 String[] values = buf.toString(StandardCharsets.US_ASCII).split(",");
                 int valueIndex = 0;
 
-                if (type.equalsIgnoreCase("btemp2")) {
+                if (type.equalsIgnoreCase("TEMP")) {
+                    position.set(Position.PREFIX_TEMP + 1, Double.parseDouble(values[valueIndex]));
+                } else if (type.equalsIgnoreCase("btemp2")) {
                     if (Integer.parseInt(values[valueIndex++]) > 0) {
                         position.set(Position.PREFIX_TEMP + 1, Double.parseDouble(values[valueIndex]));
                     }
+                } else if (type.equalsIgnoreCase("oxygen")) {
+                    position.set("bloodOxygen", Integer.parseInt(values[++valueIndex]));
                 } else {
                     if (type.equalsIgnoreCase("BPHRT") || type.equalsIgnoreCase("BLOOD")) {
                         position.set("pressureHigh", values[valueIndex++]);
@@ -312,17 +329,41 @@ public class WatchProtocolDecoder extends BaseProtocolDecoder {
 
             int timeIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) ',');
             buf.readerIndex(timeIndex + 12 + 2);
-            position.set(Position.KEY_IMAGE, Context.getMediaManager().writeFile(id, buf, "jpg"));
+            position.set(Position.KEY_IMAGE, writeMediaFile(id, buf, "jpg"));
 
             return position;
 
+        } else if (type.equals("JXTK")) {
+
+            int dataIndex = BufferUtil.indexOf(buf, buf.readerIndex(), buf.writerIndex(), (byte) ',', 4) + 1;
+            String[] values = buf.readCharSequence(
+                    dataIndex - buf.readerIndex(), StandardCharsets.US_ASCII).toString().split(",");
+
+            int current = Integer.parseInt(values[2]);
+            int total = Integer.parseInt(values[3]);
+
+            if (audio == null) {
+                audio = Unpooled.buffer();
+            }
+            audio.writeBytes(buf);
+
+            sendResponse(channel, id, index, "JXTKR,1");
+
+            if (current < total) {
+                return null;
+            } else {
+                Position position = new Position(getProtocolName());
+                position.setDeviceId(deviceSession.getDeviceId());
+                getLastLocation(position, null);
+                position.set(Position.KEY_AUDIO, writeMediaFile(id, audio, "amr"));
+                audio.release();
+                audio = null;
+                return position;
+            }
+
         } else if (type.equals("TK")) {
 
             if (buf.readableBytes() == 1) {
-                byte result = buf.readByte();
-                if (result != '1') {
-                    LOGGER.warn(type + "," + result);
-                }
                 return null;
             }
 
@@ -331,7 +372,7 @@ public class WatchProtocolDecoder extends BaseProtocolDecoder {
 
             getLastLocation(position, null);
 
-            position.set(Position.KEY_AUDIO, Context.getMediaManager().writeFile(id, buf, "amr"));
+            position.set(Position.KEY_AUDIO, writeMediaFile(id, buf, "amr"));
 
             return position;
 
diff --git a/src/main/java/org/traccar/protocol/WatchProtocolEncoder.java b/src/main/java/org/traccar/protocol/WatchProtocolEncoder.java
index f1904ea4d..14ebe2852 100644
--- a/src/main/java/org/traccar/protocol/WatchProtocolEncoder.java
+++ b/src/main/java/org/traccar/protocol/WatchProtocolEncoder.java
@@ -67,6 +67,9 @@ public class WatchProtocolEncoder extends StringProtocolEncoder implements Strin
             if (decoder != null) {
                 hasIndex = decoder.getHasIndex();
                 manufacturer = decoder.getManufacturer();
+                if (manufacturer.equals("3G")) {
+                    manufacturer = "SG";
+                }
             }
         }
 
diff --git a/src/main/java/org/traccar/protocol/WialonProtocol.java b/src/main/java/org/traccar/protocol/WialonProtocol.java
index cb6ea5319..84033132d 100644
--- a/src/main/java/org/traccar/protocol/WialonProtocol.java
+++ b/src/main/java/org/traccar/protocol/WialonProtocol.java
@@ -15,32 +15,34 @@
  */
 package org.traccar.protocol;
 
+import io.netty.handler.codec.LineBasedFrameDecoder;
+import io.netty.handler.codec.string.StringDecoder;
+import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
-import org.traccar.Context;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 import org.traccar.model.Command;
 
-import io.netty.handler.codec.LineBasedFrameDecoder;
-import io.netty.handler.codec.string.StringDecoder;
-import io.netty.handler.codec.string.StringEncoder;
-
 import java.nio.charset.StandardCharsets;
 
+import jakarta.inject.Inject;
+
 public class WialonProtocol extends BaseProtocol {
 
-    public WialonProtocol() {
+    @Inject
+    public WialonProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_REBOOT_DEVICE,
                 Command.TYPE_SEND_USSD,
                 Command.TYPE_IDENTIFICATION,
                 Command.TYPE_OUTPUT_CONTROL);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(4 * 1024));
-                boolean utf8 = Context.getConfig().getBoolean(Keys.PROTOCOL_UTF8.withPrefix(getName()));
+                boolean utf8 = config.getBoolean(Keys.PROTOCOL_UTF8.withPrefix(getName()));
                 if (utf8) {
                     pipeline.addLast(new StringEncoder(StandardCharsets.UTF_8));
                     pipeline.addLast(new StringDecoder(StandardCharsets.UTF_8));
@@ -52,11 +54,11 @@ public class WialonProtocol extends BaseProtocol {
                 pipeline.addLast(new WialonProtocolDecoder(WialonProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(4 * 1024));
-                boolean utf8 = Context.getConfig().getBoolean(Keys.PROTOCOL_UTF8.withPrefix(getName()));
+                boolean utf8 = config.getBoolean(Keys.PROTOCOL_UTF8.withPrefix(getName()));
                 if (utf8) {
                     pipeline.addLast(new StringEncoder(StandardCharsets.UTF_8));
                     pipeline.addLast(new StringDecoder(StandardCharsets.UTF_8));
diff --git a/src/main/java/org/traccar/protocol/WialonProtocolDecoder.java b/src/main/java/org/traccar/protocol/WialonProtocolDecoder.java
index 19d9dd6c8..4d1b34dba 100644
--- a/src/main/java/org/traccar/protocol/WialonProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/WialonProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
@@ -39,7 +39,7 @@ public class WialonProtocolDecoder extends BaseProtocolDecoder {
     }
 
     private static final Pattern PATTERN_ANY = new PatternBuilder()
-            .expression("([^#]*)?")              // imei
+            .expression("([^#]+)?")              // imei
             .text("#")                           // start byte
             .expression("([^#]+)")               // type
             .text("#")                           // separator
@@ -63,8 +63,9 @@ public class WialonProtocolDecoder extends BaseProtocolDecoder {
             .number("(?:NA|(d+));")              // outputs
             .expression("(?:NA|([^;]*));")       // adc
             .expression("(?:NA|([^;]*));")       // ibutton
-            .expression("(?:NA|(.*))")           // params
+            .expression("(?:NA|([^;]*))")        // params
             .groupEnd("?")
+            .any()
             .compile();
 
     private void sendResponse(Channel channel, SocketAddress remoteAddress, String type, Integer number) {
@@ -101,7 +102,7 @@ public class WialonProtocolDecoder extends BaseProtocolDecoder {
             position.setTime(new Date());
         }
 
-        if (parser.hasNext(9)) {
+        if (parser.hasNextAny(9)) {
             position.setLatitude(parser.nextCoordinate());
             position.setLongitude(parser.nextCoordinate());
             position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble(0)));
@@ -135,10 +136,22 @@ public class WialonProtocolDecoder extends BaseProtocolDecoder {
             for (String param : values) {
                 Matcher paramParser = Pattern.compile("(.*):[1-3]:(.*)").matcher(param);
                 if (paramParser.matches()) {
+                    String key = paramParser.group(1).toLowerCase();
+                    String value = paramParser.group(2);
                     try {
-                        position.set(paramParser.group(1).toLowerCase(), Double.parseDouble(paramParser.group(2)));
+                        if (key.equals("accuracy")) {
+                            position.setAccuracy(Double.parseDouble(value));
+                        } else {
+                            position.set(key, Double.parseDouble(value));
+                        }
                     } catch (NumberFormatException e) {
-                        position.set(paramParser.group(1).toLowerCase(), paramParser.group(2));
+                        if (value.equalsIgnoreCase("true")) {
+                            position.set(key, true);
+                        } else if (value.equalsIgnoreCase("false")) {
+                            position.set(key, false);
+                        } else {
+                            position.set(key, value);
+                        }
                     }
                 }
             }
diff --git a/src/main/java/org/traccar/protocol/WliProtocol.java b/src/main/java/org/traccar/protocol/WliProtocol.java
index c10ebf505..5b9ebb520 100644
--- a/src/main/java/org/traccar/protocol/WliProtocol.java
+++ b/src/main/java/org/traccar/protocol/WliProtocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class WliProtocol extends BaseProtocol {
 
-    public WliProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public WliProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new WliFrameDecoder());
                 pipeline.addLast(new WliProtocolDecoder(WliProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/WliProtocolDecoder.java b/src/main/java/org/traccar/protocol/WliProtocolDecoder.java
index 0e2a0a65e..ec1c4d17a 100644
--- a/src/main/java/org/traccar/protocol/WliProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/WliProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2020 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,10 +18,12 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.UnitsConverter;
+import org.traccar.model.CellTower;
+import org.traccar.model.Network;
 import org.traccar.model.Position;
 
 import java.net.SocketAddress;
@@ -41,9 +43,9 @@ public class WliProtocolDecoder extends BaseProtocolDecoder {
         ByteBuf buf = (ByteBuf) msg;
 
         buf.readUnsignedByte(); // header
-        int type = buf.readUnsignedByte();
+        int clazz = buf.readUnsignedByte();
 
-        if (type == '1') {
+        if (clazz == '1') {
 
             DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
             if (deviceSession == null) {
@@ -53,11 +55,13 @@ public class WliProtocolDecoder extends BaseProtocolDecoder {
             Position position = new Position(getProtocolName());
             position.setDeviceId(deviceSession.getDeviceId());
 
+            CellTower cellTower = new CellTower();
+
             position.set(Position.KEY_INDEX, buf.readUnsignedShort());
 
             buf.readUnsignedShort(); // length
             buf.readUnsignedShort(); // checksum
-            buf.readUnsignedByte(); // application message type
+            int type = buf.readUnsignedByte();
             buf.readUnsignedByte(); // delimiter
 
             while (buf.readableBytes() > 1) {
@@ -95,18 +99,56 @@ public class WliProtocolDecoder extends BaseProtocolDecoder {
                     String value = buf.readCharSequence(
                             endIndex - buf.readerIndex(), StandardCharsets.US_ASCII).toString();
 
-                    switch (fieldNumber) {
-                        case 246:
-                            String[] values = value.split(",");
-                            position.set(Position.KEY_POWER, Integer.parseInt(values[2]) * 0.01);
-                            position.set(Position.KEY_BATTERY, Integer.parseInt(values[3]) * 0.01);
+                    int networkFieldsOffset;
+                    switch (type) {
+                        case 0xE4:
+                            networkFieldsOffset = 10;
+                            break;
+                        case 0xCB:
+                            networkFieldsOffset = 80;
                             break;
-                        case 255:
-                            position.setDeviceTime(new Date(Long.parseLong(value) * 1000));
+                        case 0x1E:
+                            networkFieldsOffset = 182;
                             break;
+                        case 0xC9:
                         default:
+                            networkFieldsOffset = 35;
                             break;
                     }
+                    if (fieldNumber - networkFieldsOffset >= 0 && fieldNumber - networkFieldsOffset < 10) {
+                        switch (fieldNumber - networkFieldsOffset) {
+                            case 0:
+                                cellTower.setMobileCountryCode(Integer.parseInt(value));
+                                break;
+                            case 1:
+                                cellTower.setMobileNetworkCode(Integer.parseInt(value));
+                                break;
+                            case 2:
+                                cellTower.setLocationAreaCode(Integer.parseInt(value));
+                                break;
+                            case 3:
+                                cellTower.setCellId(Long.parseLong(value));
+                                break;
+                            case 4:
+                                cellTower.setSignalStrength(Integer.parseInt(value));
+                                break;
+                            default:
+                                break;
+                        }
+                    } else {
+                        switch (fieldNumber) {
+                            case 246:
+                                String[] values = value.split(",");
+                                position.set(Position.KEY_POWER, Integer.parseInt(values[2]) * 0.01);
+                                position.set(Position.KEY_BATTERY, Integer.parseInt(values[3]) * 0.01);
+                                break;
+                            case 255:
+                                position.setDeviceTime(new Date(Long.parseLong(value) * 1000));
+                                break;
+                            default:
+                                break;
+                        }
+                    }
 
                 }
 
@@ -114,13 +156,21 @@ public class WliProtocolDecoder extends BaseProtocolDecoder {
 
             }
 
+            if (type == 0xE4) {
+                getLastLocation(position, position.getDeviceTime());
+            }
+
+            if (cellTower.getCellId() != null) {
+                position.setNetwork(new Network(cellTower));
+            }
+
             if (!position.getValid()) {
                 getLastLocation(position, position.getDeviceTime());
             }
 
             return position;
 
-        } else if (type == '2') {
+        } else if (clazz == '2') {
 
             String id = buf.toString(buf.readerIndex(), buf.readableBytes() - 1, StandardCharsets.US_ASCII);
             getDeviceSession(channel, remoteAddress, id.substring("wli:".length()));
diff --git a/src/main/java/org/traccar/protocol/WondexProtocol.java b/src/main/java/org/traccar/protocol/WondexProtocol.java
index 6401fde85..e27b8e2bb 100644
--- a/src/main/java/org/traccar/protocol/WondexProtocol.java
+++ b/src/main/java/org/traccar/protocol/WondexProtocol.java
@@ -15,16 +15,19 @@
  */
 package org.traccar.protocol;
 
+import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
-import io.netty.handler.codec.string.StringEncoder;
+import jakarta.inject.Inject;
 
 public class WondexProtocol extends BaseProtocol {
 
-    public WondexProtocol() {
+    @Inject
+    public WondexProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_GET_DEVICE_STATUS,
                 Command.TYPE_GET_MODEM_STATUS,
@@ -40,18 +43,18 @@ public class WondexProtocol extends BaseProtocol {
                 Command.TYPE_POSITION_SINGLE,
                 Command.TYPE_GET_VERSION,
                 Command.TYPE_IDENTIFICATION);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new WondexFrameDecoder());
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new WondexProtocolEncoder(WondexProtocol.this));
                 pipeline.addLast(new WondexProtocolDecoder(WondexProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new WondexProtocolEncoder(WondexProtocol.this));
                 pipeline.addLast(new WondexProtocolDecoder(WondexProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/WondexProtocolDecoder.java b/src/main/java/org/traccar/protocol/WondexProtocolDecoder.java
index b85ae2656..46aa65a5d 100644
--- a/src/main/java/org/traccar/protocol/WondexProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/WondexProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2013 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
@@ -74,6 +74,9 @@ public class WondexProtocolDecoder extends BaseProtocolDecoder {
                 || buf.toString(StandardCharsets.US_ASCII).startsWith("$MSG:")) {
 
             DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+            if (deviceSession == null) {
+                return null;
+            }
 
             Position position = new Position(getProtocolName());
             position.setDeviceId(deviceSession.getDeviceId());
@@ -89,12 +92,12 @@ public class WondexProtocolDecoder extends BaseProtocolDecoder {
                 return null;
             }
 
-            Position position = new Position(getProtocolName());
-
             DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
             if (deviceSession == null) {
                 return null;
             }
+
+            Position position = new Position(getProtocolName());
             position.setDeviceId(deviceSession.getDeviceId());
 
             position.setTime(parser.nextDateTime());
diff --git a/src/main/java/org/traccar/protocol/WristbandProtocol.java b/src/main/java/org/traccar/protocol/WristbandProtocol.java
index 1e5ef2c01..117daf8cf 100644
--- a/src/main/java/org/traccar/protocol/WristbandProtocol.java
+++ b/src/main/java/org/traccar/protocol/WristbandProtocol.java
@@ -19,13 +19,17 @@ import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class WristbandProtocol extends BaseProtocol {
 
-    public WristbandProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public WristbandProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LengthFieldBasedFrameDecoder(1024, 3, 2, 3, 0));
                 pipeline.addLast(new WristbandProtocolDecoder(WristbandProtocol.this));
             }
diff --git a/src/main/java/org/traccar/protocol/WristbandProtocolDecoder.java b/src/main/java/org/traccar/protocol/WristbandProtocolDecoder.java
index 58b5784d0..323992ddd 100644
--- a/src/main/java/org/traccar/protocol/WristbandProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/WristbandProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/Xexun2FrameEncoder.java b/src/main/java/org/traccar/protocol/Xexun2FrameEncoder.java
new file mode 100644
index 000000000..52d43c36c
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/Xexun2FrameEncoder.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2022 Stefan Clark (stefan@stefanclark.co.uk)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.handler.codec.MessageToByteEncoder;
+
+public class Xexun2FrameEncoder extends MessageToByteEncoder<ByteBuf> {
+
+    @Override
+    protected void encode(ChannelHandlerContext ctx, ByteBuf msg, ByteBuf out) {
+        out.writeBytes(msg.readBytes(2));
+
+        while (msg.readableBytes() > 2) {
+            int b = msg.readUnsignedByte();
+            if (b == 0xfa && msg.isReadable() && msg.getUnsignedByte(msg.readerIndex()) == 0xaf) {
+                msg.readUnsignedByte();
+                out.writeByte(0xfb);
+                out.writeByte(0xbf);
+                out.writeByte(0x01);
+            } else if (b == 0xfb && msg.isReadable() && msg.getUnsignedByte(msg.readerIndex()) == 0xbf) {
+                msg.readUnsignedByte();
+                out.writeByte(0xfb);
+                out.writeByte(0xbf);
+                out.writeByte(0x02);
+            } else {
+                out.writeByte(b);
+            }
+        }
+
+        out.writeBytes(msg.readBytes(2));
+
+    }
+}
diff --git a/src/main/java/org/traccar/protocol/Xexun2Protocol.java b/src/main/java/org/traccar/protocol/Xexun2Protocol.java
index 265841c77..9dd517cfa 100644
--- a/src/main/java/org/traccar/protocol/Xexun2Protocol.java
+++ b/src/main/java/org/traccar/protocol/Xexun2Protocol.java
@@ -18,15 +18,27 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+import org.traccar.model.Command;
+
+import jakarta.inject.Inject;
 
 public class Xexun2Protocol extends BaseProtocol {
 
-    public Xexun2Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Xexun2Protocol(Config config) {
+        setSupportedDataCommands(
+                Command.TYPE_CUSTOM,
+                Command.TYPE_POSITION_PERIODIC,
+                Command.TYPE_POWER_OFF,
+                Command.TYPE_REBOOT_DEVICE);
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
+                pipeline.addLast(new Xexun2FrameEncoder());
                 pipeline.addLast(new Xexun2FrameDecoder());
                 pipeline.addLast(new Xexun2ProtocolDecoder(Xexun2Protocol.this));
+                pipeline.addLast(new Xexun2ProtocolEncoder(Xexun2Protocol.this));
             }
         });
     }
diff --git a/src/main/java/org/traccar/protocol/Xexun2ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Xexun2ProtocolDecoder.java
index 766a3f05b..0e3c44e12 100644
--- a/src/main/java/org/traccar/protocol/Xexun2ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Xexun2ProtocolDecoder.java
@@ -20,10 +20,11 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
+import org.traccar.helper.Checksum;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.CellTower;
 import org.traccar.model.Network;
@@ -41,13 +42,14 @@ public class Xexun2ProtocolDecoder extends BaseProtocolDecoder {
         super(protocol);
     }
 
+    public static final int FLAG = 0xfaaf;
+    public static final int MSG_COMMAND = 0x07;
     public static final int MSG_POSITION = 0x14;
 
     private void sendResponse(Channel channel, int type, int index, ByteBuf imei) {
         if (channel != null) {
             ByteBuf response = Unpooled.buffer();
-            response.writeByte(0xfa);
-            response.writeByte(0xaf);
+            response.writeShort(FLAG);
 
             response.writeShort(type);
             response.writeShort(index);
@@ -56,8 +58,7 @@ public class Xexun2ProtocolDecoder extends BaseProtocolDecoder {
             response.writeShort(0xfffe); // checksum
             response.writeByte(1); // response
 
-            response.writeByte(0xfa);
-            response.writeByte(0xaf);
+            response.writeShort(FLAG);
 
             channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress()));
         }
@@ -67,6 +68,9 @@ public class Xexun2ProtocolDecoder extends BaseProtocolDecoder {
         if (BitUtil.check(value, 0)) {
             return Position.ALARM_SOS;
         }
+        if (BitUtil.check(value, 1)) {
+            return Position.ALARM_REMOVING;
+        }
         if (BitUtil.check(value, 15)) {
             return Position.ALARM_FALL_DOWN;
         }
@@ -96,10 +100,16 @@ public class Xexun2ProtocolDecoder extends BaseProtocolDecoder {
             return null;
         }
 
-        sendResponse(channel, type, index, imei);
+        int payloadSize = buf.readUnsignedShort() & 0x03ff;
+        int checksum = buf.readUnsignedShort();
+
+        if (checksum != Checksum.ip(buf.nioBuffer(buf.readerIndex(), payloadSize))) {
+            return null;
+        }
 
-        buf.readUnsignedShort(); // attributes
-        buf.readUnsignedShort(); // checksum
+        if (type != MSG_COMMAND) {
+            sendResponse(channel, type, index, imei);
+        }
 
         if (type == MSG_POSITION) {
             List<Integer> lengths = new ArrayList<>();
@@ -146,7 +156,7 @@ public class Xexun2ProtocolDecoder extends BaseProtocolDecoder {
                         for (int j = 0; j < wifiCount; j++) {
                             String mac = ByteBufUtil.hexDump(buf.readSlice(6)).replaceAll("(..)", "$1:");
                             network.addWifiAccessPoint(WifiAccessPoint.from(
-                                    mac.substring(0, mac.length() - 1), buf.readUnsignedByte()));
+                                    mac.substring(0, mac.length() - 1), buf.readByte()));
                         }
                     }
                     if (BitUtil.check(positionMask, 2)) {
@@ -154,7 +164,7 @@ public class Xexun2ProtocolDecoder extends BaseProtocolDecoder {
                         for (int j = 0; j < cellCount; j++) {
                             network.addCellTower(CellTower.from(
                                     buf.readUnsignedShort(), buf.readUnsignedShort(),
-                                    buf.readInt(), buf.readUnsignedInt(), buf.readUnsignedByte()));
+                                    buf.readInt(), buf.readUnsignedInt(), buf.readByte()));
                         }
                     }
                     if (network.getWifiAccessPoints() != null || network.getCellTowers() != null) {
@@ -173,7 +183,25 @@ public class Xexun2ProtocolDecoder extends BaseProtocolDecoder {
                         position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
                         position.setLongitude(convertCoordinate(buf.readDouble()));
                         position.setLatitude(convertCoordinate(buf.readDouble()));
-
+                    }
+                    if (BitUtil.check(positionMask, 7)) {
+                        int dataLength = buf.readUnsignedShort();
+                        if (dataLength > 0) {
+                            int dataType = buf.readUnsignedByte();
+                            int dataEndIndex = buf.readerIndex() + buf.readUnsignedShort();
+                            if (dataType == 'G') {
+                                position.setFixTime(position.getDeviceTime());
+                                position.setLongitude(convertCoordinate(buf.readDouble()));
+                                position.setLatitude(convertCoordinate(buf.readDouble()));
+                                position.setValid(buf.readUnsignedByte() > 0);
+                                position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+                                buf.readUnsignedByte(); // satellite signal-to-noise ratio
+                                position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShort() * 0.1));
+                                position.setCourse(buf.readUnsignedShort() * 0.1);
+                                position.setAltitude(buf.readFloat());
+                            }
+                            buf.readerIndex(dataEndIndex);
+                        }
                     }
                 }
                 if (BitUtil.check(mask, 3)) {
diff --git a/src/main/java/org/traccar/protocol/Xexun2ProtocolEncoder.java b/src/main/java/org/traccar/protocol/Xexun2ProtocolEncoder.java
new file mode 100644
index 000000000..8f3fa5672
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/Xexun2ProtocolEncoder.java
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2022 Stefan Clark (stefan@stefanclark.co.uk)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import org.traccar.BaseProtocolEncoder;
+import org.traccar.helper.Checksum;
+import org.traccar.helper.DataConverter;
+import org.traccar.model.Command;
+import org.traccar.Protocol;
+
+import java.nio.charset.StandardCharsets;
+
+public class Xexun2ProtocolEncoder extends BaseProtocolEncoder {
+
+    public Xexun2ProtocolEncoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    private static ByteBuf encodeContent(String uniqueId, String content) {
+        ByteBuf buf = Unpooled.buffer();
+
+        ByteBuf message = Unpooled.copiedBuffer(content.getBytes(StandardCharsets.US_ASCII));
+
+        buf.writeShort(Xexun2ProtocolDecoder.FLAG);
+        buf.writeShort(Xexun2ProtocolDecoder.MSG_COMMAND);
+        buf.writeShort(1); // index
+        buf.writeBytes(DataConverter.parseHex(uniqueId + "0"));
+        buf.writeShort(message.readableBytes());
+        buf.writeShort(Checksum.ip(message.nioBuffer()));
+        buf.writeBytes(message);
+        buf.writeShort(Xexun2ProtocolDecoder.FLAG);
+
+        return buf;
+    }
+
+    @Override
+    protected Object encodeCommand(Command command) {
+        String uniqueId = getUniqueId(command.getDeviceId());
+
+        switch (command.getType()) {
+            case Command.TYPE_CUSTOM:
+                return encodeContent(uniqueId, command.getString(Command.KEY_DATA));
+            case Command.TYPE_POSITION_PERIODIC:
+                return encodeContent(uniqueId,
+                    String.format("tracking_send=%1$d,%1$d", command.getInteger(Command.KEY_FREQUENCY)));
+            case Command.TYPE_POWER_OFF:
+                return encodeContent(uniqueId, "of=1");
+            case Command.TYPE_REBOOT_DEVICE:
+                return encodeContent(uniqueId, "reset");
+            default:
+                return null;
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/protocol/XexunProtocol.java b/src/main/java/org/traccar/protocol/XexunProtocol.java
index b83c4e445..e76e47d19 100644
--- a/src/main/java/org/traccar/protocol/XexunProtocol.java
+++ b/src/main/java/org/traccar/protocol/XexunProtocol.java
@@ -15,27 +15,29 @@
  */
 package org.traccar.protocol;
 
+import io.netty.handler.codec.LineBasedFrameDecoder;
+import io.netty.handler.codec.string.StringDecoder;
+import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
-import org.traccar.Context;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 import org.traccar.model.Command;
 
-import io.netty.handler.codec.LineBasedFrameDecoder;
-import io.netty.handler.codec.string.StringDecoder;
-import io.netty.handler.codec.string.StringEncoder;
+import jakarta.inject.Inject;
 
 public class XexunProtocol extends BaseProtocol {
 
-    public XexunProtocol() {
+    @Inject
+    public XexunProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_ENGINE_STOP,
                 Command.TYPE_ENGINE_RESUME);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
-                boolean full = Context.getConfig().getBoolean(Keys.PROTOCOL_EXTENDED.withPrefix(getName()));
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
+                boolean full = config.getBoolean(Keys.PROTOCOL_EXTENDED.withPrefix(getName()));
                 if (full) {
                     pipeline.addLast(new LineBasedFrameDecoder(1024)); // tracker bug \n\r
                 } else {
diff --git a/src/main/java/org/traccar/protocol/XexunProtocolDecoder.java b/src/main/java/org/traccar/protocol/XexunProtocolDecoder.java
index 73d386477..e41d467d5 100644
--- a/src/main/java/org/traccar/protocol/XexunProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/XexunProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/XirgoProtocol.java b/src/main/java/org/traccar/protocol/XirgoProtocol.java
index 1be5b6c4b..7e14c6842 100644
--- a/src/main/java/org/traccar/protocol/XirgoProtocol.java
+++ b/src/main/java/org/traccar/protocol/XirgoProtocol.java
@@ -15,23 +15,26 @@
  */
 package org.traccar.protocol;
 
+import io.netty.handler.codec.string.StringDecoder;
+import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.CharacterDelimiterFrameDecoder;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
-import io.netty.handler.codec.string.StringDecoder;
-import io.netty.handler.codec.string.StringEncoder;
+import jakarta.inject.Inject;
 
 public class XirgoProtocol extends BaseProtocol {
 
-    public XirgoProtocol() {
+    @Inject
+    public XirgoProtocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_OUTPUT_CONTROL);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new CharacterDelimiterFrameDecoder(1024, "##"));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
@@ -39,9 +42,9 @@ public class XirgoProtocol extends BaseProtocol {
                 pipeline.addLast(new XirgoProtocolDecoder(XirgoProtocol.this));
             }
         });
-        addServer(new TrackerServer(true, getName()) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new XirgoProtocolEncoder(XirgoProtocol.this));
diff --git a/src/main/java/org/traccar/protocol/XirgoProtocolDecoder.java b/src/main/java/org/traccar/protocol/XirgoProtocolDecoder.java
index 630fe5aed..220c28054 100644
--- a/src/main/java/org/traccar/protocol/XirgoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/XirgoProtocolDecoder.java
@@ -18,8 +18,7 @@ package org.traccar.protocol;
 import io.netty.channel.Channel;
 import io.netty.channel.socket.nio.NioDatagramChannel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
@@ -40,7 +39,11 @@ public class XirgoProtocolDecoder extends BaseProtocolDecoder {
 
     public XirgoProtocolDecoder(Protocol protocol) {
         super(protocol);
-        form = Context.getConfig().getString(Keys.PROTOCOL_FORM.withPrefix(getProtocolName()));
+    }
+
+    @Override
+    protected void init() {
+        form = getConfig().getString(Keys.PROTOCOL_FORM.withPrefix(getProtocolName()));
     }
 
     public void setForm(String form) {
diff --git a/src/main/java/org/traccar/protocol/Xrb28Protocol.java b/src/main/java/org/traccar/protocol/Xrb28Protocol.java
index 5d8af418b..135fb0928 100644
--- a/src/main/java/org/traccar/protocol/Xrb28Protocol.java
+++ b/src/main/java/org/traccar/protocol/Xrb28Protocol.java
@@ -21,22 +21,26 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 import org.traccar.model.Command;
 
 import java.nio.charset.StandardCharsets;
 
+import jakarta.inject.Inject;
+
 public class Xrb28Protocol extends BaseProtocol {
 
-    public Xrb28Protocol() {
+    @Inject
+    public Xrb28Protocol(Config config) {
         setSupportedDataCommands(
                 Command.TYPE_CUSTOM,
                 Command.TYPE_POSITION_SINGLE,
                 Command.TYPE_POSITION_PERIODIC,
                 Command.TYPE_ALARM_ARM,
                 Command.TYPE_ALARM_DISARM);
-        addServer(new TrackerServer(false, getName()) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder(StandardCharsets.ISO_8859_1));
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/Xrb28ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Xrb28ProtocolDecoder.java
index 69e5b7372..88f2d07e5 100644
--- a/src/main/java/org/traccar/protocol/Xrb28ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Xrb28ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/Xt013Protocol.java b/src/main/java/org/traccar/protocol/Xt013Protocol.java
index ebb3c123f..25809463a 100644
--- a/src/main/java/org/traccar/protocol/Xt013Protocol.java
+++ b/src/main/java/org/traccar/protocol/Xt013Protocol.java
@@ -15,20 +15,23 @@
  */
 package org.traccar.protocol;
 
+import io.netty.handler.codec.LineBasedFrameDecoder;
+import io.netty.handler.codec.string.StringDecoder;
+import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
 
-import io.netty.handler.codec.LineBasedFrameDecoder;
-import io.netty.handler.codec.string.StringDecoder;
-import io.netty.handler.codec.string.StringEncoder;
+import jakarta.inject.Inject;
 
 public class Xt013Protocol extends BaseProtocol {
 
-    public Xt013Protocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public Xt013Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringDecoder());
                 pipeline.addLast(new StringEncoder());
diff --git a/src/main/java/org/traccar/protocol/Xt013ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Xt013ProtocolDecoder.java
index f49fb9563..ab0b2cdaa 100644
--- a/src/main/java/org/traccar/protocol/Xt013ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Xt013ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/Xt2400Protocol.java b/src/main/java/org/traccar/protocol/Xt2400Protocol.java
index 9427876c8..1b7fc840b 100644
--- a/src/main/java/org/traccar/protocol/Xt2400Protocol.java
+++ b/src/main/java/org/traccar/protocol/Xt2400Protocol.java
@@ -18,13 +18,17 @@ package org.traccar.protocol;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class Xt2400Protocol extends BaseProtocol {
 
-    public Xt2400Protocol() {
-        addServer(new TrackerServer(true, getName()) {
+    @Inject
+    public Xt2400Protocol(Config config) {
+        addServer(new TrackerServer(config, getName(), true) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new Xt2400ProtocolDecoder(Xt2400Protocol.this));
             }
         });
diff --git a/src/main/java/org/traccar/protocol/Xt2400ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Xt2400ProtocolDecoder.java
index 85e8e140f..edcb3f535 100644
--- a/src/main/java/org/traccar/protocol/Xt2400ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Xt2400ProtocolDecoder.java
@@ -18,8 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
 import org.traccar.helper.DataConverter;
@@ -38,8 +37,11 @@ public class Xt2400ProtocolDecoder extends BaseProtocolDecoder {
 
     public Xt2400ProtocolDecoder(Protocol protocol) {
         super(protocol);
+    }
 
-        String config = Context.getConfig().getString(Keys.PROTOCOL_CONFIG.withPrefix(getProtocolName()));
+    @Override
+    protected void init() {
+        String config = getConfig().getString(Keys.PROTOCOL_CONFIG.withPrefix(getProtocolName()));
         if (config != null) {
             setConfig(config);
         }
diff --git a/src/main/java/org/traccar/protocol/YwtProtocol.java b/src/main/java/org/traccar/protocol/YwtProtocol.java
index c525b75cf..27c71cfa8 100644
--- a/src/main/java/org/traccar/protocol/YwtProtocol.java
+++ b/src/main/java/org/traccar/protocol/YwtProtocol.java
@@ -21,13 +21,17 @@ import io.netty.handler.codec.string.StringEncoder;
 import org.traccar.BaseProtocol;
 import org.traccar.PipelineBuilder;
 import org.traccar.TrackerServer;
+import org.traccar.config.Config;
+
+import jakarta.inject.Inject;
 
 public class YwtProtocol extends BaseProtocol {
 
-    public YwtProtocol() {
-        addServer(new TrackerServer(false, getName()) {
+    @Inject
+    public YwtProtocol(Config config) {
+        addServer(new TrackerServer(config, getName(), false) {
             @Override
-            protected void addProtocolHandlers(PipelineBuilder pipeline) {
+            protected void addProtocolHandlers(PipelineBuilder pipeline, Config config) {
                 pipeline.addLast(new LineBasedFrameDecoder(1024));
                 pipeline.addLast(new StringEncoder());
                 pipeline.addLast(new StringDecoder());
diff --git a/src/main/java/org/traccar/protocol/YwtProtocolDecoder.java b/src/main/java/org/traccar/protocol/YwtProtocolDecoder.java
index bf5a23fa7..fd050bee9 100644
--- a/src/main/java/org/traccar/protocol/YwtProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/YwtProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/reports/CombinedReportProvider.java b/src/main/java/org/traccar/reports/CombinedReportProvider.java
new file mode 100644
index 000000000..bad3a61b3
--- /dev/null
+++ b/src/main/java/org/traccar/reports/CombinedReportProvider.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.reports;
+
+import org.traccar.helper.model.DeviceUtil;
+import org.traccar.helper.model.PositionUtil;
+import org.traccar.model.Device;
+import org.traccar.model.Event;
+import org.traccar.reports.common.ReportUtils;
+import org.traccar.reports.model.CombinedReportItem;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Order;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Date;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+public class CombinedReportProvider {
+
+    private static final Set<String> EXCLUDE_TYPES = Set.of(Event.TYPE_DEVICE_MOVING);
+
+    private final ReportUtils reportUtils;
+    private final Storage storage;
+
+    @Inject
+    public CombinedReportProvider(ReportUtils reportUtils, Storage storage) {
+        this.reportUtils = reportUtils;
+        this.storage = storage;
+    }
+
+    public Collection<CombinedReportItem> getObjects(
+            long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
+            Date from, Date to) throws StorageException {
+        reportUtils.checkPeriodLimit(from, to);
+
+        ArrayList<CombinedReportItem> result = new ArrayList<>();
+        for (Device device: DeviceUtil.getAccessibleDevices(storage, userId, deviceIds, groupIds)) {
+            CombinedReportItem item = new CombinedReportItem();
+            item.setDeviceId(device.getId());
+            var positions = PositionUtil.getPositions(storage, device.getId(), from, to);
+            item.setRoute(positions.stream()
+                    .map(p -> new double[] {p.getLongitude(), p.getLatitude()})
+                    .collect(Collectors.toList()));
+            var events = storage.getObjects(Event.class, new Request(
+                    new Columns.All(),
+                    new Condition.And(
+                            new Condition.Equals("deviceId", device.getId()),
+                            new Condition.Between("eventTime", "from", from, "to", to)),
+                    new Order("eventTime")));
+            item.setEvents(events.stream()
+                    .filter(e -> e.getPositionId() > 0 && !EXCLUDE_TYPES.contains(e.getType()))
+                    .collect(Collectors.toList()));
+            var eventPositions = events.stream()
+                    .map(Event::getPositionId)
+                    .collect(Collectors.toSet());
+            item.setPositions(positions.stream()
+                    .filter(p -> eventPositions.contains(p.getId()))
+                    .collect(Collectors.toList()));
+            result.add(item);
+        }
+        return result;
+    }
+}
diff --git a/src/main/java/org/traccar/reports/CsvExportProvider.java b/src/main/java/org/traccar/reports/CsvExportProvider.java
new file mode 100644
index 000000000..521dc120a
--- /dev/null
+++ b/src/main/java/org/traccar/reports/CsvExportProvider.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.reports;
+
+import org.traccar.helper.DateUtil;
+import org.traccar.helper.model.PositionUtil;
+import org.traccar.model.Position;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+
+import jakarta.inject.Inject;
+import java.io.OutputStream;
+import java.io.PrintWriter;
+import java.util.Date;
+import java.util.LinkedHashMap;
+import java.util.Objects;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+public class CsvExportProvider {
+
+    private final Storage storage;
+
+    @Inject
+    public CsvExportProvider(Storage storage) {
+        this.storage = storage;
+    }
+
+    public void generate(
+            OutputStream outputStream, long deviceId, Date from, Date to) throws StorageException {
+
+        var positions = PositionUtil.getPositions(storage, deviceId, from, to);
+
+        var attributes = positions.stream()
+                .flatMap((position -> position.getAttributes().keySet().stream()))
+                .collect(Collectors.toUnmodifiableSet());
+
+        var properties = new LinkedHashMap<String, Function<Position, Object>>();
+        properties.put("id", Position::getId);
+        properties.put("deviceId", Position::getDeviceId);
+        properties.put("protocol", Position::getProtocol);
+        properties.put("serverTime", position -> DateUtil.formatDate(position.getServerTime()));
+        properties.put("deviceTime", position -> DateUtil.formatDate(position.getDeviceTime()));
+        properties.put("fixTime", position -> DateUtil.formatDate(position.getFixTime()));
+        properties.put("valid", Position::getValid);
+        properties.put("latitude", Position::getLatitude);
+        properties.put("longitude", Position::getLongitude);
+        properties.put("altitude", Position::getAltitude);
+        properties.put("speed", Position::getSpeed);
+        properties.put("course", Position::getCourse);
+        properties.put("address", Position::getAddress);
+        properties.put("accuracy", Position::getAccuracy);
+        attributes.forEach(key -> properties.put(key, position -> position.getAttributes().get(key)));
+
+        try (PrintWriter writer = new PrintWriter(outputStream)) {
+            writer.println(String.join(",", properties.keySet()));
+            positions.forEach(position -> writer.println(properties.values().stream()
+                    .map(f -> Objects.toString(f.apply(position), ""))
+                    .collect(Collectors.joining(","))));
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/reports/Events.java b/src/main/java/org/traccar/reports/Events.java
deleted file mode 100644
index e4b905702..000000000
--- a/src/main/java/org/traccar/reports/Events.java
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * Copyright 2016 - 2018 Anton Tananaev (anton@traccar.org)
- * Copyright 2016 - 2018 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.reports;
-
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Date;
-import java.util.HashMap;
-import java.util.Iterator;
-
-import org.apache.poi.ss.util.WorkbookUtil;
-import org.traccar.Context;
-import org.traccar.model.Device;
-import org.traccar.model.Event;
-import org.traccar.model.Geofence;
-import org.traccar.model.Group;
-import org.traccar.model.Maintenance;
-import org.traccar.reports.model.DeviceReport;
-import org.traccar.storage.StorageException;
-
-public final class Events {
-
-    private Events() {
-    }
-
-    public static Collection<Event> getObjects(long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
-            Collection<String> types, Date from, Date to) throws StorageException {
-        ReportUtils.checkPeriodLimit(from, to);
-        ArrayList<Event> result = new ArrayList<>();
-        for (long deviceId: ReportUtils.getDeviceList(deviceIds, groupIds)) {
-            Context.getPermissionsManager().checkDevice(userId, deviceId);
-            Collection<Event> events = Context.getDataManager().getEvents(deviceId, from, to);
-            boolean all = types.isEmpty() || types.contains(Event.ALL_EVENTS);
-            for (Event event : events) {
-                if (all || types.contains(event.getType())) {
-                    long geofenceId = event.getGeofenceId();
-                    long maintenanceId = event.getMaintenanceId();
-                    if ((geofenceId == 0 || Context.getGeofenceManager().checkItemPermission(userId, geofenceId))
-                            && (maintenanceId == 0
-                            || Context.getMaintenancesManager().checkItemPermission(userId, maintenanceId))) {
-                       result.add(event);
-                    }
-                }
-            }
-        }
-        return result;
-    }
-
-    public static void getExcel(OutputStream outputStream,
-            long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
-            Collection<String> types, Date from, Date to) throws StorageException, IOException {
-        ReportUtils.checkPeriodLimit(from, to);
-        ArrayList<DeviceReport> devicesEvents = new ArrayList<>();
-        ArrayList<String> sheetNames = new ArrayList<>();
-        HashMap<Long, String> geofenceNames = new HashMap<>();
-        HashMap<Long, String> maintenanceNames = new HashMap<>();
-        for (long deviceId: ReportUtils.getDeviceList(deviceIds, groupIds)) {
-            Context.getPermissionsManager().checkDevice(userId, deviceId);
-            Collection<Event> events = Context.getDataManager().getEvents(deviceId, from, to);
-            boolean all = types.isEmpty() || types.contains(Event.ALL_EVENTS);
-            for (Iterator<Event> iterator = events.iterator(); iterator.hasNext();) {
-                Event event = iterator.next();
-                if (all || types.contains(event.getType())) {
-                    long geofenceId = event.getGeofenceId();
-                    long maintenanceId = event.getMaintenanceId();
-                    if (geofenceId != 0) {
-                        if (Context.getGeofenceManager().checkItemPermission(userId, geofenceId)) {
-                            Geofence geofence = Context.getGeofenceManager().getById(geofenceId);
-                            if (geofence != null) {
-                                geofenceNames.put(geofenceId, geofence.getName());
-                            }
-                        } else {
-                            iterator.remove();
-                        }
-                    } else if (maintenanceId != 0) {
-                        if (Context.getMaintenancesManager().checkItemPermission(userId, maintenanceId)) {
-                            Maintenance maintenance = Context.getMaintenancesManager().getById(maintenanceId);
-                            if (maintenance != null) {
-                                maintenanceNames.put(maintenanceId, maintenance.getName());
-                            }
-                        } else {
-                            iterator.remove();
-                        }
-                    }
-                } else {
-                    iterator.remove();
-                }
-            }
-            DeviceReport deviceEvents = new DeviceReport();
-            Device device = Context.getIdentityManager().getById(deviceId);
-            deviceEvents.setDeviceName(device.getName());
-            sheetNames.add(WorkbookUtil.createSafeSheetName(deviceEvents.getDeviceName()));
-            if (device.getGroupId() != 0) {
-                Group group = Context.getGroupsManager().getById(device.getGroupId());
-                if (group != null) {
-                    deviceEvents.setGroupName(group.getName());
-                }
-            }
-            deviceEvents.setObjects(events);
-            devicesEvents.add(deviceEvents);
-        }
-        String templatePath = Context.getConfig().getString("report.templatesPath",
-                "templates/export/");
-        try (InputStream inputStream = new FileInputStream(templatePath + "/events.xlsx")) {
-            org.jxls.common.Context jxlsContext = ReportUtils.initializeContext(userId);
-            jxlsContext.putVar("devices", devicesEvents);
-            jxlsContext.putVar("sheetNames", sheetNames);
-            jxlsContext.putVar("geofenceNames", geofenceNames);
-            jxlsContext.putVar("maintenanceNames", maintenanceNames);
-            jxlsContext.putVar("from", from);
-            jxlsContext.putVar("to", to);
-            ReportUtils.processTemplateWithSheets(inputStream, outputStream, jxlsContext);
-        }
-    }
-}
diff --git a/src/main/java/org/traccar/reports/EventsReportProvider.java b/src/main/java/org/traccar/reports/EventsReportProvider.java
new file mode 100644
index 000000000..f252f28cc
--- /dev/null
+++ b/src/main/java/org/traccar/reports/EventsReportProvider.java
@@ -0,0 +1,170 @@
+/*
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2018 Andrey Kunitsyn (andrey@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.reports;
+
+import org.apache.poi.ss.util.WorkbookUtil;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.helper.model.DeviceUtil;
+import org.traccar.model.Device;
+import org.traccar.model.Event;
+import org.traccar.model.Geofence;
+import org.traccar.model.Group;
+import org.traccar.model.Maintenance;
+import org.traccar.model.Position;
+import org.traccar.reports.common.ReportUtils;
+import org.traccar.reports.model.DeviceReportSection;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Order;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+
+public class EventsReportProvider {
+
+    private final Config config;
+    private final ReportUtils reportUtils;
+    private final Storage storage;
+
+    @Inject
+    public EventsReportProvider(Config config, ReportUtils reportUtils, Storage storage) {
+        this.config = config;
+        this.reportUtils = reportUtils;
+        this.storage = storage;
+    }
+
+    private List<Event> getEvents(long deviceId, Date from, Date to) throws StorageException {
+        return storage.getObjects(Event.class, new Request(
+                new Columns.All(),
+                new Condition.And(
+                        new Condition.Equals("deviceId", deviceId),
+                        new Condition.Between("eventTime", "from", from, "to", to)),
+                new Order("eventTime")));
+    }
+
+    public Collection<Event> getObjects(
+            long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
+            Collection<String> types, Date from, Date to) throws StorageException {
+        reportUtils.checkPeriodLimit(from, to);
+
+        ArrayList<Event> result = new ArrayList<>();
+        for (Device device: DeviceUtil.getAccessibleDevices(storage, userId, deviceIds, groupIds)) {
+            Collection<Event> events = getEvents(device.getId(), from, to);
+            boolean all = types.isEmpty() || types.contains(Event.ALL_EVENTS);
+            for (Event event : events) {
+                if (all || types.contains(event.getType())) {
+                    long geofenceId = event.getGeofenceId();
+                    long maintenanceId = event.getMaintenanceId();
+                    if ((geofenceId == 0 || reportUtils.getObject(userId, Geofence.class, geofenceId) != null)
+                            && (maintenanceId == 0
+                            || reportUtils.getObject(userId, Maintenance.class, maintenanceId) != null)) {
+                       result.add(event);
+                    }
+                }
+            }
+        }
+        return result;
+    }
+
+    public void getExcel(
+            OutputStream outputStream, long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
+            Collection<String> types, Date from, Date to) throws StorageException, IOException {
+        reportUtils.checkPeriodLimit(from, to);
+
+        ArrayList<DeviceReportSection> devicesEvents = new ArrayList<>();
+        ArrayList<String> sheetNames = new ArrayList<>();
+        HashMap<Long, String> geofenceNames = new HashMap<>();
+        HashMap<Long, String> maintenanceNames = new HashMap<>();
+        HashMap<Long, Position> positions = new HashMap<>();
+        for (Device device: DeviceUtil.getAccessibleDevices(storage, userId, deviceIds, groupIds)) {
+            Collection<Event> events = getEvents(device.getId(), from, to);
+            boolean all = types.isEmpty() || types.contains(Event.ALL_EVENTS);
+            for (Iterator<Event> iterator = events.iterator(); iterator.hasNext();) {
+                Event event = iterator.next();
+                if (all || types.contains(event.getType())) {
+                    long geofenceId = event.getGeofenceId();
+                    long maintenanceId = event.getMaintenanceId();
+                    if (geofenceId != 0) {
+                        Geofence geofence = reportUtils.getObject(userId, Geofence.class, geofenceId);
+                        if (geofence != null) {
+                            geofenceNames.put(geofenceId, geofence.getName());
+                        } else {
+                            iterator.remove();
+                        }
+                    } else if (maintenanceId != 0) {
+                        Maintenance maintenance = reportUtils.getObject(userId, Maintenance.class, maintenanceId);
+                        if (maintenance != null) {
+                            maintenanceNames.put(maintenanceId, maintenance.getName());
+                        } else {
+                            iterator.remove();
+                        }
+                    }
+                } else {
+                    iterator.remove();
+                }
+            }
+            for (Event event : events) {
+                long positionId = event.getPositionId();
+                if (positionId > 0) {
+                    Position position = storage.getObject(Position.class, new Request(
+                            new Columns.All(), new Condition.Equals("id", positionId)));
+                    positions.put(positionId, position);
+                }
+            }
+            DeviceReportSection deviceEvents = new DeviceReportSection();
+            deviceEvents.setDeviceName(device.getName());
+            sheetNames.add(WorkbookUtil.createSafeSheetName(deviceEvents.getDeviceName()));
+            if (device.getGroupId() > 0) {
+                Group group = storage.getObject(Group.class, new Request(
+                        new Columns.All(), new Condition.Equals("id", device.getGroupId())));
+                if (group != null) {
+                    deviceEvents.setGroupName(group.getName());
+                }
+            }
+            deviceEvents.setObjects(events);
+            devicesEvents.add(deviceEvents);
+        }
+
+        File file = Paths.get(config.getString(Keys.TEMPLATES_ROOT), "export", "events.xlsx").toFile();
+        try (InputStream inputStream = new FileInputStream(file)) {
+            var context = reportUtils.initializeContext(userId);
+            context.putVar("devices", devicesEvents);
+            context.putVar("sheetNames", sheetNames);
+            context.putVar("geofenceNames", geofenceNames);
+            context.putVar("maintenanceNames", maintenanceNames);
+            context.putVar("positions", positions);
+            context.putVar("from", from);
+            context.putVar("to", to);
+            reportUtils.processTemplateWithSheets(inputStream, outputStream, context);
+        }
+    }
+}
diff --git a/src/main/java/org/traccar/reports/GpxExportProvider.java b/src/main/java/org/traccar/reports/GpxExportProvider.java
new file mode 100644
index 000000000..1c45b6416
--- /dev/null
+++ b/src/main/java/org/traccar/reports/GpxExportProvider.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.reports;
+
+import org.traccar.helper.DateUtil;
+import org.traccar.helper.model.PositionUtil;
+import org.traccar.model.Device;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import java.io.OutputStream;
+import java.io.PrintWriter;
+import java.util.Date;
+
+public class GpxExportProvider {
+
+    private final Storage storage;
+
+    @Inject
+    public GpxExportProvider(Storage storage) {
+        this.storage = storage;
+    }
+
+    public void generate(
+            OutputStream outputStream, long deviceId, Date from, Date to) throws StorageException {
+
+        var device = storage.getObject(Device.class, new Request(
+                new Columns.All(), new Condition.Equals("id", deviceId)));
+        var positions = PositionUtil.getPositions(storage, deviceId, from, to);
+
+        try (PrintWriter writer = new PrintWriter(outputStream)) {
+            writer.print("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
+            writer.print("<gpx version=\"1.0\">");
+            writer.print("<trk>");
+            writer.print("<name>");
+            writer.print(device.getName());
+            writer.print("</name>");
+            writer.print("<trkseg>");
+            positions.forEach(position -> {
+                writer.print("<trkpt lat=\"");
+                writer.print(position.getLatitude());
+                writer.print("\" lon=\"");
+                writer.print(position.getLongitude());
+                writer.print("\">");
+                writer.print("<ele>");
+                writer.print(position.getAltitude());
+                writer.print("</ele>");
+                writer.print("<time>");
+                writer.print(DateUtil.formatDate(position.getFixTime()));
+                writer.print("</time>");
+                writer.print("</trkpt>");
+            });
+            writer.print("</trkseg>");
+            writer.print("</trk>");
+            writer.print("</gpx>");
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/reports/KmlExportProvider.java b/src/main/java/org/traccar/reports/KmlExportProvider.java
new file mode 100644
index 000000000..24dca018c
--- /dev/null
+++ b/src/main/java/org/traccar/reports/KmlExportProvider.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.reports;
+
+import org.traccar.helper.model.PositionUtil;
+import org.traccar.model.Device;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import java.io.OutputStream;
+import java.io.PrintWriter;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.stream.Collectors;
+
+public class KmlExportProvider {
+
+    private final Storage storage;
+
+    @Inject
+    public KmlExportProvider(Storage storage) {
+        this.storage = storage;
+    }
+
+    public void generate(
+            OutputStream outputStream, long deviceId, Date from, Date to) throws StorageException {
+
+        var device = storage.getObject(Device.class, new Request(
+                new Columns.All(), new Condition.Equals("id", deviceId)));
+        var positions = PositionUtil.getPositions(storage, deviceId, from, to);
+
+        var dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm");
+
+        try (PrintWriter writer = new PrintWriter(outputStream)) {
+            writer.print("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
+            writer.print("<kml xmlns=\"http://www.opengis.net/kml/2.2\">");
+            writer.print("<Document>");
+            writer.print("<name>");
+            writer.print(device.getName());
+            writer.print("</name>");
+            writer.print("<Placemark>");
+            writer.print("<name>");
+            writer.print(dateFormat.format(from));
+            writer.print(" - ");
+            writer.print(dateFormat.format(to));
+            writer.print("</name>");
+            writer.print("<LineString>");
+            writer.print("<extrude>1</extrude>");
+            writer.print("<tessellate>1</tessellate>");
+            writer.print("<altitudeMode>absolute</altitudeMode>");
+            writer.print("<coordinates>");
+            writer.print(positions.stream()
+                    .map((p -> String.format("%f,%f,%f", p.getLongitude(), p.getLatitude(), p.getAltitude())))
+                    .collect(Collectors.joining(" ")));
+            writer.print("</coordinates>");
+            writer.print("</LineString>");
+            writer.print("</Placemark>");
+            writer.print("</Document>");
+            writer.print("</kml>");
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/reports/ReportUtils.java b/src/main/java/org/traccar/reports/ReportUtils.java
deleted file mode 100644
index 58674beae..000000000
--- a/src/main/java/org/traccar/reports/ReportUtils.java
+++ /dev/null
@@ -1,368 +0,0 @@
-/*
- * Copyright 2016 - 2020 Anton Tananaev (anton@traccar.org)
- * Copyright 2016 - 2017 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.reports;
-
-import org.apache.velocity.tools.generic.DateTool;
-import org.apache.velocity.tools.generic.NumberTool;
-import org.jxls.area.Area;
-import org.jxls.builder.xls.XlsCommentAreaBuilder;
-import org.jxls.common.CellRef;
-import org.jxls.formula.StandardFormulaProcessor;
-import org.jxls.transform.Transformer;
-import org.jxls.transform.poi.PoiTransformer;
-import org.jxls.util.TransformerFactory;
-import org.traccar.Context;
-import org.traccar.config.Keys;
-import org.traccar.database.DeviceManager;
-import org.traccar.database.IdentityManager;
-import org.traccar.handler.events.MotionEventHandler;
-import org.traccar.helper.UnitsConverter;
-import org.traccar.model.DeviceState;
-import org.traccar.model.Driver;
-import org.traccar.model.Event;
-import org.traccar.model.Position;
-import org.traccar.reports.model.BaseReport;
-import org.traccar.reports.model.StopReport;
-import org.traccar.reports.model.TripReport;
-import org.traccar.reports.model.TripsConfig;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.math.BigDecimal;
-import java.math.RoundingMode;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Date;
-import java.util.List;
-import java.util.Locale;
-import java.util.Map;
-import java.util.TimeZone;
-
-public final class ReportUtils {
-
-    private ReportUtils() {
-    }
-
-    public static void checkPeriodLimit(Date from, Date to) {
-        long limit = Context.getConfig().getLong(Keys.REPORT_PERIOD_LIMIT) * 1000;
-        if (limit > 0 && to.getTime() - from.getTime() > limit) {
-            throw new IllegalArgumentException("Time period exceeds the limit");
-        }
-    }
-
-    public static String getDistanceUnit(long userId) {
-        return (String) Context.getPermissionsManager().lookupAttribute(userId, "distanceUnit", "km");
-    }
-
-    public static String getSpeedUnit(long userId) {
-        return (String) Context.getPermissionsManager().lookupAttribute(userId, "speedUnit", "kn");
-    }
-
-    public static String getVolumeUnit(long userId) {
-        return (String) Context.getPermissionsManager().lookupAttribute(userId, "volumeUnit", "ltr");
-    }
-
-    public static TimeZone getTimezone(long userId) {
-        String timezone = (String) Context.getPermissionsManager().lookupAttribute(userId, "timezone", null);
-        return timezone != null ? TimeZone.getTimeZone(timezone) : TimeZone.getDefault();
-    }
-
-    public static Collection<Long> getDeviceList(Collection<Long> deviceIds, Collection<Long> groupIds) {
-        Collection<Long> result = new ArrayList<>(deviceIds);
-        for (long groupId : groupIds) {
-            result.addAll(Context.getPermissionsManager().getGroupDevices(groupId));
-        }
-        return result;
-    }
-
-    public static double calculateDistance(Position firstPosition, Position lastPosition) {
-        return calculateDistance(firstPosition, lastPosition, true);
-    }
-
-    public static double calculateDistance(Position firstPosition, Position lastPosition, boolean useOdometer) {
-        double distance = 0.0;
-        double firstOdometer = firstPosition.getDouble(Position.KEY_ODOMETER);
-        double lastOdometer = lastPosition.getDouble(Position.KEY_ODOMETER);
-
-        if (useOdometer && firstOdometer != 0.0 && lastOdometer != 0.0) {
-            distance = lastOdometer - firstOdometer;
-        } else if (firstPosition.getAttributes().containsKey(Position.KEY_TOTAL_DISTANCE)
-                && lastPosition.getAttributes().containsKey(Position.KEY_TOTAL_DISTANCE)) {
-            distance = lastPosition.getDouble(Position.KEY_TOTAL_DISTANCE)
-                    - firstPosition.getDouble(Position.KEY_TOTAL_DISTANCE);
-        }
-        return distance;
-    }
-
-    public static double calculateFuel(Position firstPosition, Position lastPosition) {
-
-        if (firstPosition.getAttributes().get(Position.KEY_FUEL_LEVEL) != null
-                && lastPosition.getAttributes().get(Position.KEY_FUEL_LEVEL) != null) {
-
-            BigDecimal value = BigDecimal.valueOf(firstPosition.getDouble(Position.KEY_FUEL_LEVEL)
-                    - lastPosition.getDouble(Position.KEY_FUEL_LEVEL));
-            return value.setScale(1, RoundingMode.HALF_EVEN).doubleValue();
-        }
-        return 0;
-    }
-
-    public static String findDriver(Position firstPosition, Position lastPosition) {
-        if (firstPosition.getAttributes().containsKey(Position.KEY_DRIVER_UNIQUE_ID)) {
-            return firstPosition.getString(Position.KEY_DRIVER_UNIQUE_ID);
-        } else if (lastPosition.getAttributes().containsKey(Position.KEY_DRIVER_UNIQUE_ID)) {
-            return lastPosition.getString(Position.KEY_DRIVER_UNIQUE_ID);
-        }
-        return null;
-    }
-
-    public static String findDriverName(String driverUniqueId) {
-        if (driverUniqueId != null && Context.getDriversManager() != null) {
-            Driver driver = Context.getDriversManager().getDriverByUniqueId(driverUniqueId);
-            if (driver != null) {
-                return driver.getName();
-            }
-        }
-        return null;
-    }
-
-    public static org.jxls.common.Context initializeContext(long userId) {
-        org.jxls.common.Context jxlsContext = PoiTransformer.createInitialContext();
-        jxlsContext.putVar("distanceUnit", getDistanceUnit(userId));
-        jxlsContext.putVar("speedUnit", getSpeedUnit(userId));
-        jxlsContext.putVar("volumeUnit", getVolumeUnit(userId));
-        jxlsContext.putVar("webUrl", Context.getVelocityEngine().getProperty("web.url"));
-        jxlsContext.putVar("dateTool", new DateTool());
-        jxlsContext.putVar("numberTool", new NumberTool());
-        jxlsContext.putVar("timezone", getTimezone(userId));
-        jxlsContext.putVar("locale", Locale.getDefault());
-        jxlsContext.putVar("bracketsRegex", "[\\{\\}\"]");
-        return jxlsContext;
-    }
-
-    public static void processTemplateWithSheets(
-            InputStream templateStream, OutputStream targetStream,
-            org.jxls.common.Context jxlsContext) throws IOException {
-
-        Transformer transformer = TransformerFactory.createTransformer(templateStream, targetStream);
-        List<Area> xlsAreas = new XlsCommentAreaBuilder(transformer).build();
-        for (Area xlsArea : xlsAreas) {
-            xlsArea.applyAt(new CellRef(xlsArea.getStartCellRef().getCellName()), jxlsContext);
-            xlsArea.setFormulaProcessor(new StandardFormulaProcessor());
-            xlsArea.processFormulas();
-        }
-        transformer.deleteSheet(xlsAreas.get(0).getStartCellRef().getSheetName());
-        transformer.write();
-    }
-
-    private static TripReport calculateTrip(
-            ArrayList<Position> positions, int startIndex, int endIndex, boolean ignoreOdometer) {
-
-        Position startTrip = positions.get(startIndex);
-        Position endTrip = positions.get(endIndex);
-
-        double speedMax = 0;
-        for (int i = startIndex; i <= endIndex; i++) {
-            double speed = positions.get(i).getSpeed();
-            if (speed > speedMax) {
-                speedMax = speed;
-            }
-        }
-
-        TripReport trip = new TripReport();
-
-        long tripDuration = endTrip.getFixTime().getTime() - startTrip.getFixTime().getTime();
-        long deviceId = startTrip.getDeviceId();
-        trip.setDeviceId(deviceId);
-        trip.setDeviceName(Context.getIdentityManager().getById(deviceId).getName());
-
-        trip.setStartPositionId(startTrip.getId());
-        trip.setStartLat(startTrip.getLatitude());
-        trip.setStartLon(startTrip.getLongitude());
-        trip.setStartTime(startTrip.getFixTime());
-        String startAddress = startTrip.getAddress();
-        if (startAddress == null && Context.getGeocoder() != null
-                && Context.getConfig().getBoolean(Keys.GEOCODER_ON_REQUEST)) {
-            startAddress = Context.getGeocoder().getAddress(startTrip.getLatitude(), startTrip.getLongitude(), null);
-        }
-        trip.setStartAddress(startAddress);
-
-        trip.setEndPositionId(endTrip.getId());
-        trip.setEndLat(endTrip.getLatitude());
-        trip.setEndLon(endTrip.getLongitude());
-        trip.setEndTime(endTrip.getFixTime());
-        String endAddress = endTrip.getAddress();
-        if (endAddress == null && Context.getGeocoder() != null
-                && Context.getConfig().getBoolean(Keys.GEOCODER_ON_REQUEST)) {
-            endAddress = Context.getGeocoder().getAddress(endTrip.getLatitude(), endTrip.getLongitude(), null);
-        }
-        trip.setEndAddress(endAddress);
-
-        trip.setDistance(calculateDistance(startTrip, endTrip, !ignoreOdometer));
-        trip.setDuration(tripDuration);
-        if (tripDuration > 0) {
-            trip.setAverageSpeed(UnitsConverter.knotsFromMps(trip.getDistance() * 1000 / tripDuration));
-        }
-        trip.setMaxSpeed(speedMax);
-        trip.setSpentFuel(calculateFuel(startTrip, endTrip));
-
-        trip.setDriverUniqueId(findDriver(startTrip, endTrip));
-        trip.setDriverName(findDriverName(trip.getDriverUniqueId()));
-
-        if (!ignoreOdometer
-                && startTrip.getDouble(Position.KEY_ODOMETER) != 0
-                && endTrip.getDouble(Position.KEY_ODOMETER) != 0) {
-            trip.setStartOdometer(startTrip.getDouble(Position.KEY_ODOMETER));
-            trip.setEndOdometer(endTrip.getDouble(Position.KEY_ODOMETER));
-        } else {
-            trip.setStartOdometer(startTrip.getDouble(Position.KEY_TOTAL_DISTANCE));
-            trip.setEndOdometer(endTrip.getDouble(Position.KEY_TOTAL_DISTANCE));
-        }
-
-        return trip;
-    }
-
-    private static StopReport calculateStop(
-            ArrayList<Position> positions, int startIndex, int endIndex, boolean ignoreOdometer) {
-
-        Position startStop = positions.get(startIndex);
-        Position endStop = positions.get(endIndex);
-
-        StopReport stop = new StopReport();
-
-        long deviceId = startStop.getDeviceId();
-        stop.setDeviceId(deviceId);
-        stop.setDeviceName(Context.getIdentityManager().getById(deviceId).getName());
-
-        stop.setPositionId(startStop.getId());
-        stop.setLatitude(startStop.getLatitude());
-        stop.setLongitude(startStop.getLongitude());
-        stop.setStartTime(startStop.getFixTime());
-        String address = startStop.getAddress();
-        if (address == null && Context.getGeocoder() != null
-                && Context.getConfig().getBoolean(Keys.GEOCODER_ON_REQUEST)) {
-            address = Context.getGeocoder().getAddress(stop.getLatitude(), stop.getLongitude(), null);
-        }
-        stop.setAddress(address);
-
-        stop.setEndTime(endStop.getFixTime());
-
-        long stopDuration = endStop.getFixTime().getTime() - startStop.getFixTime().getTime();
-        stop.setDuration(stopDuration);
-        stop.setSpentFuel(calculateFuel(startStop, endStop));
-
-        if (startStop.getAttributes().containsKey(Position.KEY_HOURS)
-                && endStop.getAttributes().containsKey(Position.KEY_HOURS)) {
-            stop.setEngineHours(endStop.getLong(Position.KEY_HOURS) - startStop.getLong(Position.KEY_HOURS));
-        }
-
-        if (!ignoreOdometer
-                && startStop.getDouble(Position.KEY_ODOMETER) != 0
-                && endStop.getDouble(Position.KEY_ODOMETER) != 0) {
-            stop.setStartOdometer(startStop.getDouble(Position.KEY_ODOMETER));
-            stop.setEndOdometer(endStop.getDouble(Position.KEY_ODOMETER));
-        } else {
-            stop.setStartOdometer(startStop.getDouble(Position.KEY_TOTAL_DISTANCE));
-            stop.setEndOdometer(endStop.getDouble(Position.KEY_TOTAL_DISTANCE));
-        }
-
-        return stop;
-
-    }
-
-    private static <T extends BaseReport> T calculateTripOrStop(
-            ArrayList<Position> positions, int startIndex, int endIndex, boolean ignoreOdometer, Class<T> reportClass) {
-
-        if (reportClass.equals(TripReport.class)) {
-            return (T) calculateTrip(positions, startIndex, endIndex, ignoreOdometer);
-        } else {
-            return (T) calculateStop(positions, startIndex, endIndex, ignoreOdometer);
-        }
-    }
-
-    private static boolean isMoving(ArrayList<Position> positions, int index, TripsConfig tripsConfig) {
-        if (tripsConfig.getMinimalNoDataDuration() > 0) {
-            boolean beforeGap = index < positions.size() - 1
-                    && positions.get(index + 1).getFixTime().getTime() - positions.get(index).getFixTime().getTime()
-                    >= tripsConfig.getMinimalNoDataDuration();
-            boolean afterGap = index > 0
-                    && positions.get(index).getFixTime().getTime() - positions.get(index - 1).getFixTime().getTime()
-                    >= tripsConfig.getMinimalNoDataDuration();
-            if (beforeGap || afterGap) {
-                return false;
-            }
-        }
-        if (positions.get(index).getAttributes().containsKey(Position.KEY_MOTION)
-                && positions.get(index).getAttributes().get(Position.KEY_MOTION) instanceof Boolean) {
-            return positions.get(index).getBoolean(Position.KEY_MOTION);
-        } else {
-            return positions.get(index).getSpeed() > tripsConfig.getSpeedThreshold();
-        }
-    }
-
-    public static <T extends BaseReport> Collection<T> detectTripsAndStops(
-            IdentityManager identityManager, DeviceManager deviceManager,
-            Collection<Position> positionCollection,
-            TripsConfig tripsConfig, boolean ignoreOdometer, Class<T> reportClass) {
-
-        Collection<T> result = new ArrayList<>();
-
-        ArrayList<Position> positions = new ArrayList<>(positionCollection);
-        if (!positions.isEmpty()) {
-            boolean trips = reportClass.equals(TripReport.class);
-            MotionEventHandler  motionHandler = new MotionEventHandler(identityManager, deviceManager, tripsConfig);
-            DeviceState deviceState = new DeviceState();
-            deviceState.setMotionState(isMoving(positions, 0, tripsConfig));
-            int startEventIndex = trips == deviceState.getMotionState() ? 0 : -1;
-            int startNoEventIndex = -1;
-            for (int i = 0; i < positions.size(); i++) {
-                Map<Event, Position> event = motionHandler.updateMotionState(deviceState, positions.get(i),
-                        isMoving(positions, i, tripsConfig));
-                if (startEventIndex == -1
-                        && (trips != deviceState.getMotionState() && deviceState.getMotionPosition() != null
-                        || trips == deviceState.getMotionState() && event != null)) {
-                    startEventIndex = i;
-                    startNoEventIndex = -1;
-                } else if (trips != deviceState.getMotionState() && startEventIndex != -1
-                        && deviceState.getMotionPosition() == null && event == null) {
-                    startEventIndex = -1;
-                }
-                if (startNoEventIndex == -1
-                        && (trips == deviceState.getMotionState() && deviceState.getMotionPosition() != null
-                        || trips != deviceState.getMotionState() && event != null)) {
-                    startNoEventIndex = i;
-                } else if (startNoEventIndex != -1 && deviceState.getMotionPosition() == null && event == null) {
-                    startNoEventIndex = -1;
-                }
-                if (startEventIndex != -1 && startNoEventIndex != -1 && event != null
-                        && trips != deviceState.getMotionState()) {
-                    result.add(calculateTripOrStop(positions, startEventIndex, startNoEventIndex,
-                            ignoreOdometer, reportClass));
-                    startEventIndex = -1;
-                }
-            }
-            if (startEventIndex != -1 && (startNoEventIndex != -1 || !trips)) {
-                result.add(calculateTripOrStop(positions, startEventIndex,
-                            startNoEventIndex != -1 ? startNoEventIndex : positions.size() - 1,
-                            ignoreOdometer, reportClass));
-            }
-        }
-
-        return result;
-    }
-
-}
diff --git a/src/main/java/org/traccar/reports/Route.java b/src/main/java/org/traccar/reports/Route.java
deleted file mode 100644
index 4a5edd295..000000000
--- a/src/main/java/org/traccar/reports/Route.java
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * Copyright 2016 Anton Tananaev (anton@traccar.org)
- * Copyright 2016 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.reports;
-
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Date;
-
-import org.apache.poi.ss.util.WorkbookUtil;
-import org.traccar.Context;
-import org.traccar.model.Device;
-import org.traccar.model.Group;
-import org.traccar.model.Position;
-import org.traccar.reports.model.DeviceReport;
-import org.traccar.storage.StorageException;
-
-public final class Route {
-
-    private Route() {
-    }
-
-    public static Collection<Position> getObjects(long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
-            Date from, Date to) throws StorageException {
-        ReportUtils.checkPeriodLimit(from, to);
-        ArrayList<Position> result = new ArrayList<>();
-        for (long deviceId: ReportUtils.getDeviceList(deviceIds, groupIds)) {
-            Context.getPermissionsManager().checkDevice(userId, deviceId);
-            result.addAll(Context.getDataManager().getPositions(deviceId, from, to));
-        }
-        return result;
-    }
-
-    public static void getExcel(OutputStream outputStream,
-            long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
-            Date from, Date to) throws StorageException, IOException {
-        ReportUtils.checkPeriodLimit(from, to);
-        ArrayList<DeviceReport> devicesRoutes = new ArrayList<>();
-        ArrayList<String> sheetNames = new ArrayList<>();
-        for (long deviceId: ReportUtils.getDeviceList(deviceIds, groupIds)) {
-            Context.getPermissionsManager().checkDevice(userId, deviceId);
-            Collection<Position> positions = Context.getDataManager()
-                    .getPositions(deviceId, from, to);
-            DeviceReport deviceRoutes = new DeviceReport();
-            Device device = Context.getIdentityManager().getById(deviceId);
-            deviceRoutes.setDeviceName(device.getName());
-            sheetNames.add(WorkbookUtil.createSafeSheetName(deviceRoutes.getDeviceName()));
-            if (device.getGroupId() != 0) {
-                Group group = Context.getGroupsManager().getById(device.getGroupId());
-                if (group != null) {
-                    deviceRoutes.setGroupName(group.getName());
-                }
-            }
-            deviceRoutes.setObjects(positions);
-            devicesRoutes.add(deviceRoutes);
-        }
-        String templatePath = Context.getConfig().getString("report.templatesPath",
-                "templates/export/");
-        try (InputStream inputStream = new FileInputStream(templatePath + "/route.xlsx")) {
-            org.jxls.common.Context jxlsContext = ReportUtils.initializeContext(userId);
-            jxlsContext.putVar("devices", devicesRoutes);
-            jxlsContext.putVar("sheetNames", sheetNames);
-            jxlsContext.putVar("from", from);
-            jxlsContext.putVar("to", to);
-            ReportUtils.processTemplateWithSheets(inputStream, outputStream, jxlsContext);
-        }
-    }
-}
diff --git a/src/main/java/org/traccar/reports/RouteReportProvider.java b/src/main/java/org/traccar/reports/RouteReportProvider.java
new file mode 100644
index 000000000..d761fe1e5
--- /dev/null
+++ b/src/main/java/org/traccar/reports/RouteReportProvider.java
@@ -0,0 +1,113 @@
+/*
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 Andrey Kunitsyn (andrey@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.reports;
+
+import org.apache.poi.ss.util.WorkbookUtil;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.helper.model.DeviceUtil;
+import org.traccar.helper.model.PositionUtil;
+import org.traccar.model.Device;
+import org.traccar.model.Group;
+import org.traccar.model.Position;
+import org.traccar.reports.common.ReportUtils;
+import org.traccar.reports.model.DeviceReportSection;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Date;
+import java.util.Map;
+import java.util.HashMap;
+
+public class RouteReportProvider {
+
+    private final Config config;
+    private final ReportUtils reportUtils;
+    private final Storage storage;
+
+    private final Map<String, Integer> namesCount = new HashMap<>();
+
+    @Inject
+    public RouteReportProvider(Config config, ReportUtils reportUtils, Storage storage) {
+        this.config = config;
+        this.reportUtils = reportUtils;
+        this.storage = storage;
+    }
+
+    public Collection<Position> getObjects(long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
+            Date from, Date to) throws StorageException {
+        reportUtils.checkPeriodLimit(from, to);
+
+        ArrayList<Position> result = new ArrayList<>();
+        for (Device device: DeviceUtil.getAccessibleDevices(storage, userId, deviceIds, groupIds)) {
+            result.addAll(PositionUtil.getPositions(storage, device.getId(), from, to));
+        }
+        return result;
+    }
+
+
+    private String getUniqueSheetName(String key) {
+        namesCount.compute(key, (k, value) -> value == null ? 1 : (value + 1));
+        return namesCount.get(key) > 1 ? key + '-' + namesCount.get(key) : key;
+    }
+
+    public void getExcel(OutputStream outputStream,
+            long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
+            Date from, Date to) throws StorageException, IOException {
+        reportUtils.checkPeriodLimit(from, to);
+
+        ArrayList<DeviceReportSection> devicesRoutes = new ArrayList<>();
+        ArrayList<String> sheetNames = new ArrayList<>();
+        for (Device device: DeviceUtil.getAccessibleDevices(storage, userId, deviceIds, groupIds)) {
+            var positions = PositionUtil.getPositions(storage, device.getId(), from, to);
+            DeviceReportSection deviceRoutes = new DeviceReportSection();
+            deviceRoutes.setDeviceName(device.getName());
+            sheetNames.add(WorkbookUtil.createSafeSheetName(getUniqueSheetName(deviceRoutes.getDeviceName())));
+            if (device.getGroupId() > 0) {
+                Group group = storage.getObject(Group.class, new Request(
+                        new Columns.All(), new Condition.Equals("id", device.getGroupId())));
+                if (group != null) {
+                    deviceRoutes.setGroupName(group.getName());
+                }
+            }
+            deviceRoutes.setObjects(positions);
+            devicesRoutes.add(deviceRoutes);
+        }
+
+        File file = Paths.get(config.getString(Keys.TEMPLATES_ROOT), "export", "route.xlsx").toFile();
+        try (InputStream inputStream = new FileInputStream(file)) {
+            var context = reportUtils.initializeContext(userId);
+            context.putVar("devices", devicesRoutes);
+            context.putVar("sheetNames", sheetNames);
+            context.putVar("from", from);
+            context.putVar("to", to);
+            reportUtils.processTemplateWithSheets(inputStream, outputStream, context);
+        }
+    }
+}
diff --git a/src/main/java/org/traccar/reports/Stops.java b/src/main/java/org/traccar/reports/Stops.java
deleted file mode 100644
index 36a4a7549..000000000
--- a/src/main/java/org/traccar/reports/Stops.java
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * Copyright 2017 Anton Tananaev (anton@traccar.org)
- * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.traccar.reports;
-
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Date;
-
-import org.apache.poi.ss.util.WorkbookUtil;
-import org.traccar.Context;
-import org.traccar.Main;
-import org.traccar.database.DeviceManager;
-import org.traccar.database.IdentityManager;
-import org.traccar.model.Device;
-import org.traccar.model.Group;
-import org.traccar.reports.model.DeviceReport;
-import org.traccar.reports.model.StopReport;
-import org.traccar.storage.StorageException;
-
-public final class Stops {
-
-    private Stops() {
-    }
-
-    private static Collection<StopReport> detectStops(long deviceId, Date from, Date to) throws StorageException {
-        boolean ignoreOdometer = Context.getDeviceManager()
-                .lookupAttributeBoolean(deviceId, "report.ignoreOdometer", false, false, true);
-
-        IdentityManager identityManager = Main.getInjector().getInstance(IdentityManager.class);
-        DeviceManager deviceManager = Main.getInjector().getInstance(DeviceManager.class);
-
-        return ReportUtils.detectTripsAndStops(
-                identityManager, deviceManager, Context.getDataManager().getPositions(deviceId, from, to),
-                Context.getTripsConfig(), ignoreOdometer, StopReport.class);
-    }
-
-    public static Collection<StopReport> getObjects(
-            long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
-            Date from, Date to) throws StorageException {
-        ReportUtils.checkPeriodLimit(from, to);
-        ArrayList<StopReport> result = new ArrayList<>();
-        for (long deviceId: ReportUtils.getDeviceList(deviceIds, groupIds)) {
-            Context.getPermissionsManager().checkDevice(userId, deviceId);
-            result.addAll(detectStops(deviceId, from, to));
-        }
-        return result;
-    }
-
-    public static void getExcel(
-            OutputStream outputStream, long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
-            Date from, Date to) throws StorageException, IOException {
-        ReportUtils.checkPeriodLimit(from, to);
-        ArrayList<DeviceReport> devicesStops = new ArrayList<>();
-        ArrayList<String> sheetNames = new ArrayList<>();
-        for (long deviceId: ReportUtils.getDeviceList(deviceIds, groupIds)) {
-            Context.getPermissionsManager().checkDevice(userId, deviceId);
-            Collection<StopReport> stops = detectStops(deviceId, from, to);
-            DeviceReport deviceStops = new DeviceReport();
-            Device device = Context.getIdentityManager().getById(deviceId);
-            deviceStops.setDeviceName(device.getName());
-            sheetNames.add(WorkbookUtil.createSafeSheetName(deviceStops.getDeviceName()));
-            if (device.getGroupId() != 0) {
-                Group group = Context.getGroupsManager().getById(device.getGroupId());
-                if (group != null) {
-                    deviceStops.setGroupName(group.getName());
-                }
-            }
-            deviceStops.setObjects(stops);
-            devicesStops.add(deviceStops);
-        }
-        String templatePath = Context.getConfig().getString("report.templatesPath",
-                "templates/export/");
-        try (InputStream inputStream = new FileInputStream(templatePath + "/stops.xlsx")) {
-            org.jxls.common.Context jxlsContext = ReportUtils.initializeContext(userId);
-            jxlsContext.putVar("devices", devicesStops);
-            jxlsContext.putVar("sheetNames", sheetNames);
-            jxlsContext.putVar("from", from);
-            jxlsContext.putVar("to", to);
-            ReportUtils.processTemplateWithSheets(inputStream, outputStream, jxlsContext);
-        }
-    }
-
-}
diff --git a/src/main/java/org/traccar/reports/StopsReportProvider.java b/src/main/java/org/traccar/reports/StopsReportProvider.java
new file mode 100644
index 000000000..2160fec0e
--- /dev/null
+++ b/src/main/java/org/traccar/reports/StopsReportProvider.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2017 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.reports;
+
+import org.apache.poi.ss.util.WorkbookUtil;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.helper.model.DeviceUtil;
+import org.traccar.model.Device;
+import org.traccar.model.Group;
+import org.traccar.reports.common.ReportUtils;
+import org.traccar.reports.model.DeviceReportSection;
+import org.traccar.reports.model.StopReportItem;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Date;
+
+public class StopsReportProvider {
+
+    private final Config config;
+    private final ReportUtils reportUtils;
+    private final Storage storage;
+
+    @Inject
+    public StopsReportProvider(Config config, ReportUtils reportUtils, Storage storage) {
+        this.config = config;
+        this.reportUtils = reportUtils;
+        this.storage = storage;
+    }
+
+    public Collection<StopReportItem> getObjects(
+            long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
+            Date from, Date to) throws StorageException {
+        reportUtils.checkPeriodLimit(from, to);
+
+        ArrayList<StopReportItem> result = new ArrayList<>();
+        for (Device device: DeviceUtil.getAccessibleDevices(storage, userId, deviceIds, groupIds)) {
+            result.addAll(reportUtils.detectTripsAndStops(device, from, to, StopReportItem.class));
+        }
+        return result;
+    }
+
+    public void getExcel(
+            OutputStream outputStream, long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
+            Date from, Date to) throws StorageException, IOException {
+        reportUtils.checkPeriodLimit(from, to);
+
+        ArrayList<DeviceReportSection> devicesStops = new ArrayList<>();
+        ArrayList<String> sheetNames = new ArrayList<>();
+        for (Device device: DeviceUtil.getAccessibleDevices(storage, userId, deviceIds, groupIds)) {
+            Collection<StopReportItem> stops = reportUtils.detectTripsAndStops(device, from, to, StopReportItem.class);
+            DeviceReportSection deviceStops = new DeviceReportSection();
+            deviceStops.setDeviceName(device.getName());
+            sheetNames.add(WorkbookUtil.createSafeSheetName(deviceStops.getDeviceName()));
+            if (device.getGroupId() > 0) {
+                Group group = storage.getObject(Group.class, new Request(
+                        new Columns.All(), new Condition.Equals("id", device.getGroupId())));
+                if (group != null) {
+                    deviceStops.setGroupName(group.getName());
+                }
+            }
+            deviceStops.setObjects(stops);
+            devicesStops.add(deviceStops);
+        }
+
+        File file = Paths.get(config.getString(Keys.TEMPLATES_ROOT), "export", "stops.xlsx").toFile();
+        try (InputStream inputStream = new FileInputStream(file)) {
+            var context = reportUtils.initializeContext(userId);
+            context.putVar("devices", devicesStops);
+            context.putVar("sheetNames", sheetNames);
+            context.putVar("from", from);
+            context.putVar("to", to);
+            reportUtils.processTemplateWithSheets(inputStream, outputStream, context);
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/reports/Summary.java b/src/main/java/org/traccar/reports/Summary.java
deleted file mode 100644
index 4924af062..000000000
--- a/src/main/java/org/traccar/reports/Summary.java
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
- * Copyright 2016 - 2020 Anton Tananaev (anton@traccar.org)
- * Copyright 2016 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.reports;
-
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.util.ArrayList;
-import java.util.Calendar;
-import java.util.Collection;
-import java.util.Date;
-
-import org.jxls.util.JxlsHelper;
-import org.traccar.Context;
-import org.traccar.helper.UnitsConverter;
-import org.traccar.model.Position;
-import org.traccar.reports.model.SummaryReport;
-import org.traccar.storage.StorageException;
-
-public final class Summary {
-
-    private Summary() {
-    }
-
-    private static SummaryReport calculateSummaryResult(long deviceId, Collection<Position> positions) {
-        SummaryReport result = new SummaryReport();
-        result.setDeviceId(deviceId);
-        result.setDeviceName(Context.getIdentityManager().getById(deviceId).getName());
-        if (positions != null && !positions.isEmpty()) {
-            Position firstPosition = null;
-            Position previousPosition = null;
-            for (Position position : positions) {
-                if (firstPosition == null) {
-                    firstPosition = position;
-                }
-                previousPosition = position;
-                if (position.getSpeed() > result.getMaxSpeed()) {
-                    result.setMaxSpeed(position.getSpeed());
-                }
-            }
-            boolean ignoreOdometer = Context.getDeviceManager()
-                    .lookupAttributeBoolean(deviceId, "report.ignoreOdometer", false, false, true);
-            result.setDistance(ReportUtils.calculateDistance(firstPosition, previousPosition, !ignoreOdometer));
-            result.setSpentFuel(ReportUtils.calculateFuel(firstPosition, previousPosition));
-
-            long durationMilliseconds;
-            if (firstPosition.getAttributes().containsKey(Position.KEY_HOURS)
-                    && previousPosition.getAttributes().containsKey(Position.KEY_HOURS)) {
-                durationMilliseconds =
-                        previousPosition.getLong(Position.KEY_HOURS) - firstPosition.getLong(Position.KEY_HOURS);
-                result.setEngineHours(durationMilliseconds);
-            } else {
-                durationMilliseconds =
-                        previousPosition.getFixTime().getTime() - firstPosition.getFixTime().getTime();
-            }
-
-            if (durationMilliseconds > 0) {
-                result.setAverageSpeed(
-                        UnitsConverter.knotsFromMps(result.getDistance() * 1000 / durationMilliseconds));
-            }
-
-            if (!ignoreOdometer
-                    && firstPosition.getDouble(Position.KEY_ODOMETER) != 0
-                    && previousPosition.getDouble(Position.KEY_ODOMETER) != 0) {
-                result.setStartOdometer(firstPosition.getDouble(Position.KEY_ODOMETER));
-                result.setEndOdometer(previousPosition.getDouble(Position.KEY_ODOMETER));
-            } else {
-                result.setStartOdometer(firstPosition.getDouble(Position.KEY_TOTAL_DISTANCE));
-                result.setEndOdometer(previousPosition.getDouble(Position.KEY_TOTAL_DISTANCE));
-            }
-
-            result.setStartTime(firstPosition.getFixTime());
-            result.setEndTime(previousPosition.getFixTime());
-        }
-        return result;
-    }
-
-    private static int getDay(long userId, Date date) {
-        Calendar calendar = Calendar.getInstance(ReportUtils.getTimezone(userId));
-        calendar.setTime(date);
-        return calendar.get(Calendar.DAY_OF_MONTH);
-    }
-
-    private static Collection<SummaryReport> calculateSummaryResults(
-            long userId, long deviceId, Date from, Date to, boolean daily) throws StorageException {
-
-        ArrayList<Position> positions = new ArrayList<>(Context.getDataManager().getPositions(deviceId, from, to));
-
-        ArrayList<SummaryReport> results = new ArrayList<>();
-        if (daily && !positions.isEmpty()) {
-            int startIndex = 0;
-            int startDay = getDay(userId, positions.iterator().next().getFixTime());
-            for (int i = 0; i < positions.size(); i++) {
-                int currentDay = getDay(userId, positions.get(i).getFixTime());
-                if (currentDay != startDay) {
-                    results.add(calculateSummaryResult(deviceId, positions.subList(startIndex, i)));
-                    startIndex = i;
-                    startDay = currentDay;
-                }
-            }
-            results.add(calculateSummaryResult(deviceId, positions.subList(startIndex, positions.size())));
-        } else {
-            results.add(calculateSummaryResult(deviceId, positions));
-        }
-
-        return results;
-    }
-
-    public static Collection<SummaryReport> getObjects(long userId, Collection<Long> deviceIds,
-            Collection<Long> groupIds, Date from, Date to, boolean daily) throws StorageException {
-        ReportUtils.checkPeriodLimit(from, to);
-        ArrayList<SummaryReport> result = new ArrayList<>();
-        for (long deviceId: ReportUtils.getDeviceList(deviceIds, groupIds)) {
-            Context.getPermissionsManager().checkDevice(userId, deviceId);
-            result.addAll(calculateSummaryResults(userId, deviceId, from, to, daily));
-        }
-        return result;
-    }
-
-    public static void getExcel(OutputStream outputStream,
-            long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
-            Date from, Date to, boolean daily) throws StorageException, IOException {
-        ReportUtils.checkPeriodLimit(from, to);
-        Collection<SummaryReport> summaries = getObjects(userId, deviceIds, groupIds, from, to, daily);
-        String templatePath = Context.getConfig().getString("report.templatesPath",
-                "templates/export/");
-        try (InputStream inputStream = new FileInputStream(templatePath + "/summary.xlsx")) {
-            org.jxls.common.Context jxlsContext = ReportUtils.initializeContext(userId);
-            jxlsContext.putVar("summaries", summaries);
-            jxlsContext.putVar("from", from);
-            jxlsContext.putVar("to", to);
-            JxlsHelper.getInstance().setUseFastFormulaProcessor(false)
-                    .processTemplate(inputStream, outputStream, jxlsContext);
-        }
-    }
-}
diff --git a/src/main/java/org/traccar/reports/SummaryReportProvider.java b/src/main/java/org/traccar/reports/SummaryReportProvider.java
new file mode 100644
index 000000000..ffde0b067
--- /dev/null
+++ b/src/main/java/org/traccar/reports/SummaryReportProvider.java
@@ -0,0 +1,192 @@
+/*
+ * Copyright 2016 - 2023 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 Andrey Kunitsyn (andrey@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.reports;
+
+import org.jxls.util.JxlsHelper;
+import org.traccar.api.security.PermissionsService;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.helper.model.DeviceUtil;
+import org.traccar.helper.model.PositionUtil;
+import org.traccar.helper.model.UserUtil;
+import org.traccar.model.Device;
+import org.traccar.model.Position;
+import org.traccar.reports.common.ReportUtils;
+import org.traccar.reports.model.SummaryReportItem;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Order;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.file.Paths;
+import java.time.Duration;
+import java.time.ZonedDateTime;
+import java.time.temporal.ChronoUnit;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Date;
+import java.util.List;
+
+public class SummaryReportProvider {
+
+    private final Config config;
+    private final ReportUtils reportUtils;
+    private final PermissionsService permissionsService;
+    private final Storage storage;
+
+    @Inject
+    public SummaryReportProvider(
+            Config config, ReportUtils reportUtils, PermissionsService permissionsService, Storage storage) {
+        this.config = config;
+        this.reportUtils = reportUtils;
+        this.permissionsService = permissionsService;
+        this.storage = storage;
+    }
+
+    private Position getEdgePosition(long deviceId, Date from, Date to, boolean end) throws StorageException {
+        return storage.getObject(Position.class, new Request(
+                new Columns.All(),
+                new Condition.And(
+                        new Condition.Equals("deviceId", deviceId),
+                        new Condition.Between("fixTime", "from", from, "to", to)),
+                new Order("fixTime", end, 1)));
+    }
+
+    private Collection<SummaryReportItem> calculateDeviceResult(
+            Device device, Date from, Date to, boolean fast) throws StorageException {
+
+        SummaryReportItem result = new SummaryReportItem();
+        result.setDeviceId(device.getId());
+        result.setDeviceName(device.getName());
+
+        Position first = null;
+        Position last = null;
+        if (fast) {
+            first = getEdgePosition(device.getId(), from, to, false);
+            last = getEdgePosition(device.getId(), from, to, true);
+        } else {
+            var positions = PositionUtil.getPositions(storage, device.getId(), from, to);
+            for (Position position : positions) {
+                if (first == null) {
+                    first = position;
+                }
+                if (position.getSpeed() > result.getMaxSpeed()) {
+                    result.setMaxSpeed(position.getSpeed());
+                }
+                last = position;
+            }
+        }
+
+        if (first != null && last != null) {
+            boolean ignoreOdometer = config.getBoolean(Keys.REPORT_IGNORE_ODOMETER);
+            result.setDistance(PositionUtil.calculateDistance(first, last, !ignoreOdometer));
+            result.setSpentFuel(reportUtils.calculateFuel(first, last));
+
+            long durationMilliseconds;
+            if (first.hasAttribute(Position.KEY_HOURS) && last.hasAttribute(Position.KEY_HOURS)) {
+                durationMilliseconds = last.getLong(Position.KEY_HOURS) - first.getLong(Position.KEY_HOURS);
+                result.setEngineHours(durationMilliseconds);
+            } else {
+                durationMilliseconds = last.getFixTime().getTime() - first.getFixTime().getTime();
+            }
+
+            if (durationMilliseconds > 0) {
+                result.setAverageSpeed(UnitsConverter.knotsFromMps(result.getDistance() * 1000 / durationMilliseconds));
+            }
+
+            if (!ignoreOdometer
+                    && first.getDouble(Position.KEY_ODOMETER) != 0 && last.getDouble(Position.KEY_ODOMETER) != 0) {
+                result.setStartOdometer(first.getDouble(Position.KEY_ODOMETER));
+                result.setEndOdometer(last.getDouble(Position.KEY_ODOMETER));
+            } else {
+                result.setStartOdometer(first.getDouble(Position.KEY_TOTAL_DISTANCE));
+                result.setEndOdometer(last.getDouble(Position.KEY_TOTAL_DISTANCE));
+            }
+
+            result.setStartTime(first.getFixTime());
+            result.setEndTime(last.getFixTime());
+            return List.of(result);
+        }
+
+        return List.of();
+    }
+
+    private Collection<SummaryReportItem> calculateDeviceResults(
+            Device device, ZonedDateTime from, ZonedDateTime to, boolean daily) throws StorageException {
+
+        boolean fast = Duration.between(from, to).toSeconds() > config.getLong(Keys.REPORT_FAST_THRESHOLD);
+        var results = new ArrayList<SummaryReportItem>();
+        if (daily) {
+            while (from.truncatedTo(ChronoUnit.DAYS).isBefore(to.truncatedTo(ChronoUnit.DAYS))) {
+                ZonedDateTime fromDay = from.truncatedTo(ChronoUnit.DAYS);
+                ZonedDateTime nextDay = fromDay.plus(1, ChronoUnit.DAYS);
+                results.addAll(calculateDeviceResult(
+                        device, Date.from(from.toInstant()), Date.from(nextDay.toInstant()), fast));
+                from = nextDay;
+            }
+            results.addAll(calculateDeviceResult(device, Date.from(from.toInstant()), Date.from(to.toInstant()), fast));
+        } else {
+            results.addAll(calculateDeviceResult(device, Date.from(from.toInstant()), Date.from(to.toInstant()), fast));
+        }
+        return results;
+    }
+
+    public Collection<SummaryReportItem> getObjects(
+            long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
+            Date from, Date to, boolean daily) throws StorageException {
+        reportUtils.checkPeriodLimit(from, to);
+
+        var tz = UserUtil.getTimezone(permissionsService.getServer(), permissionsService.getUser(userId)).toZoneId();
+
+        ArrayList<SummaryReportItem> result = new ArrayList<>();
+        for (Device device: DeviceUtil.getAccessibleDevices(storage, userId, deviceIds, groupIds)) {
+            var deviceResults = calculateDeviceResults(
+                    device, from.toInstant().atZone(tz), to.toInstant().atZone(tz), daily);
+            for (SummaryReportItem summaryReport : deviceResults) {
+                if (summaryReport.getStartTime() != null && summaryReport.getEndTime() != null) {
+                    result.add(summaryReport);
+                }
+            }
+        }
+        return result;
+    }
+
+    public void getExcel(OutputStream outputStream,
+            long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
+            Date from, Date to, boolean daily) throws StorageException, IOException {
+        Collection<SummaryReportItem> summaries = getObjects(userId, deviceIds, groupIds, from, to, daily);
+
+        File file = Paths.get(config.getString(Keys.TEMPLATES_ROOT), "export", "summary.xlsx").toFile();
+        try (InputStream inputStream = new FileInputStream(file)) {
+            var context = reportUtils.initializeContext(userId);
+            context.putVar("summaries", summaries);
+            context.putVar("from", from);
+            context.putVar("to", to);
+            JxlsHelper.getInstance().setUseFastFormulaProcessor(false)
+                    .processTemplate(inputStream, outputStream, context);
+        }
+    }
+}
diff --git a/src/main/java/org/traccar/reports/Trips.java b/src/main/java/org/traccar/reports/Trips.java
deleted file mode 100644
index 1461b869e..000000000
--- a/src/main/java/org/traccar/reports/Trips.java
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Copyright 2016 Anton Tananaev (anton@traccar.org)
- * Copyright 2016 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.reports;
-
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Date;
-
-import org.apache.poi.ss.util.WorkbookUtil;
-import org.traccar.Context;
-import org.traccar.Main;
-import org.traccar.database.DeviceManager;
-import org.traccar.database.IdentityManager;
-import org.traccar.model.Device;
-import org.traccar.model.Group;
-import org.traccar.reports.model.DeviceReport;
-import org.traccar.reports.model.TripReport;
-import org.traccar.storage.StorageException;
-
-public final class Trips {
-
-    private Trips() {
-    }
-
-    private static Collection<TripReport> detectTrips(long deviceId, Date from, Date to) throws StorageException {
-        boolean ignoreOdometer = Context.getDeviceManager()
-                .lookupAttributeBoolean(deviceId, "report.ignoreOdometer", false, false, true);
-
-        IdentityManager identityManager = Main.getInjector().getInstance(IdentityManager.class);
-        DeviceManager deviceManager = Main.getInjector().getInstance(DeviceManager.class);
-
-        return ReportUtils.detectTripsAndStops(
-                identityManager, deviceManager, Context.getDataManager().getPositions(deviceId, from, to),
-                Context.getTripsConfig(), ignoreOdometer, TripReport.class);
-    }
-
-    public static Collection<TripReport> getObjects(long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
-            Date from, Date to) throws StorageException {
-        ReportUtils.checkPeriodLimit(from, to);
-        ArrayList<TripReport> result = new ArrayList<>();
-        for (long deviceId: ReportUtils.getDeviceList(deviceIds, groupIds)) {
-            Context.getPermissionsManager().checkDevice(userId, deviceId);
-            result.addAll(detectTrips(deviceId, from, to));
-        }
-        return result;
-    }
-
-    public static void getExcel(OutputStream outputStream,
-            long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
-            Date from, Date to) throws StorageException, IOException {
-        ReportUtils.checkPeriodLimit(from, to);
-        ArrayList<DeviceReport> devicesTrips = new ArrayList<>();
-        ArrayList<String> sheetNames = new ArrayList<>();
-        for (long deviceId: ReportUtils.getDeviceList(deviceIds, groupIds)) {
-            Context.getPermissionsManager().checkDevice(userId, deviceId);
-            Collection<TripReport> trips = detectTrips(deviceId, from, to);
-            DeviceReport deviceTrips = new DeviceReport();
-            Device device = Context.getIdentityManager().getById(deviceId);
-            deviceTrips.setDeviceName(device.getName());
-            sheetNames.add(WorkbookUtil.createSafeSheetName(deviceTrips.getDeviceName()));
-            if (device.getGroupId() != 0) {
-                Group group = Context.getGroupsManager().getById(device.getGroupId());
-                if (group != null) {
-                    deviceTrips.setGroupName(group.getName());
-                }
-            }
-            deviceTrips.setObjects(trips);
-            devicesTrips.add(deviceTrips);
-        }
-        String templatePath = Context.getConfig().getString("report.templatesPath",
-                "templates/export/");
-        try (InputStream inputStream = new FileInputStream(templatePath + "/trips.xlsx")) {
-            org.jxls.common.Context jxlsContext = ReportUtils.initializeContext(userId);
-            jxlsContext.putVar("devices", devicesTrips);
-            jxlsContext.putVar("sheetNames", sheetNames);
-            jxlsContext.putVar("from", from);
-            jxlsContext.putVar("to", to);
-            ReportUtils.processTemplateWithSheets(inputStream, outputStream, jxlsContext);
-        }
-    }
-
-}
diff --git a/src/main/java/org/traccar/reports/TripsReportProvider.java b/src/main/java/org/traccar/reports/TripsReportProvider.java
new file mode 100644
index 000000000..9ff7232af
--- /dev/null
+++ b/src/main/java/org/traccar/reports/TripsReportProvider.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 Andrey Kunitsyn (andrey@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.reports;
+
+import org.apache.poi.ss.util.WorkbookUtil;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.helper.model.DeviceUtil;
+import org.traccar.model.Device;
+import org.traccar.model.Group;
+import org.traccar.reports.common.ReportUtils;
+import org.traccar.reports.model.DeviceReportSection;
+import org.traccar.reports.model.TripReportItem;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Date;
+
+public class TripsReportProvider {
+
+    private final Config config;
+    private final ReportUtils reportUtils;
+    private final Storage storage;
+
+    @Inject
+    public TripsReportProvider(Config config, ReportUtils reportUtils, Storage storage) {
+        this.config = config;
+        this.reportUtils = reportUtils;
+        this.storage = storage;
+    }
+
+    public Collection<TripReportItem> getObjects(
+            long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
+            Date from, Date to) throws StorageException {
+        reportUtils.checkPeriodLimit(from, to);
+
+        ArrayList<TripReportItem> result = new ArrayList<>();
+        for (Device device: DeviceUtil.getAccessibleDevices(storage, userId, deviceIds, groupIds)) {
+            result.addAll(reportUtils.detectTripsAndStops(device, from, to, TripReportItem.class));
+        }
+        return result;
+    }
+
+    public void getExcel(OutputStream outputStream,
+            long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
+            Date from, Date to) throws StorageException, IOException {
+        reportUtils.checkPeriodLimit(from, to);
+
+        ArrayList<DeviceReportSection> devicesTrips = new ArrayList<>();
+        ArrayList<String> sheetNames = new ArrayList<>();
+        for (Device device: DeviceUtil.getAccessibleDevices(storage, userId, deviceIds, groupIds)) {
+            Collection<TripReportItem> trips = reportUtils.detectTripsAndStops(device, from, to, TripReportItem.class);
+            DeviceReportSection deviceTrips = new DeviceReportSection();
+            deviceTrips.setDeviceName(device.getName());
+            sheetNames.add(WorkbookUtil.createSafeSheetName(deviceTrips.getDeviceName()));
+            if (device.getGroupId() > 0) {
+                Group group = storage.getObject(Group.class, new Request(
+                        new Columns.All(), new Condition.Equals("id", device.getGroupId())));
+                if (group != null) {
+                    deviceTrips.setGroupName(group.getName());
+                }
+            }
+            deviceTrips.setObjects(trips);
+            devicesTrips.add(deviceTrips);
+        }
+
+        File file = Paths.get(config.getString(Keys.TEMPLATES_ROOT), "export", "trips.xlsx").toFile();
+        try (InputStream inputStream = new FileInputStream(file)) {
+            var context = reportUtils.initializeContext(userId);
+            context.putVar("devices", devicesTrips);
+            context.putVar("sheetNames", sheetNames);
+            context.putVar("from", from);
+            context.putVar("to", to);
+            reportUtils.processTemplateWithSheets(inputStream, outputStream, context);
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/reports/common/ExpressionEvaluatorFactory.java b/src/main/java/org/traccar/reports/common/ExpressionEvaluatorFactory.java
new file mode 100644
index 000000000..8b139a572
--- /dev/null
+++ b/src/main/java/org/traccar/reports/common/ExpressionEvaluatorFactory.java
@@ -0,0 +1,58 @@
+package org.traccar.reports.common;
+
+import org.apache.commons.jexl3.JexlBuilder;
+import org.apache.commons.jexl3.introspection.JexlPermissions;
+import org.jxls.expression.ExpressionEvaluator;
+import org.jxls.expression.JexlExpressionEvaluator;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+
+public class ExpressionEvaluatorFactory implements org.jxls.expression.ExpressionEvaluatorFactory {
+
+    private final JexlPermissions permissions = new JexlPermissions() {
+        @Override
+        public boolean allow(Package pack) {
+            return true;
+        }
+
+        @Override
+        public boolean allow(Class<?> clazz) {
+            return true;
+        }
+
+        @Override
+        public boolean allow(Constructor<?> ctor) {
+            return true;
+        }
+
+        @Override
+        public boolean allow(Method method) {
+            return true;
+        }
+
+        @Override
+        public boolean allow(Field field) {
+            return true;
+        }
+
+        @Override
+        public JexlPermissions compose(String... src) {
+            return this;
+        }
+    };
+
+    @Override
+    public ExpressionEvaluator createExpressionEvaluator(String expression) {
+        JexlExpressionEvaluator expressionEvaluator = expression == null
+                ? new JexlExpressionEvaluator()
+                : new JexlExpressionEvaluator(expression);
+        expressionEvaluator.setJexlEngine(new JexlBuilder()
+                .silent(true)
+                .strict(false)
+                .permissions(permissions)
+                .create());
+        return expressionEvaluator;
+    }
+}
diff --git a/src/main/java/org/traccar/reports/common/ReportExecutor.java b/src/main/java/org/traccar/reports/common/ReportExecutor.java
new file mode 100644
index 000000000..aed4b8c23
--- /dev/null
+++ b/src/main/java/org/traccar/reports/common/ReportExecutor.java
@@ -0,0 +1,25 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.reports.common;
+
+import org.traccar.storage.StorageException;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+public interface ReportExecutor {
+    void execute(OutputStream stream) throws StorageException, IOException;
+}
diff --git a/src/main/java/org/traccar/reports/common/ReportMailer.java b/src/main/java/org/traccar/reports/common/ReportMailer.java
new file mode 100644
index 000000000..9fb30fe9f
--- /dev/null
+++ b/src/main/java/org/traccar/reports/common/ReportMailer.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.reports.common;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.api.security.PermissionsService;
+import org.traccar.mail.MailManager;
+import org.traccar.model.User;
+import org.traccar.storage.StorageException;
+
+import jakarta.activation.DataHandler;
+import jakarta.inject.Inject;
+import jakarta.mail.MessagingException;
+import jakarta.mail.internet.MimeBodyPart;
+import jakarta.mail.util.ByteArrayDataSource;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+public class ReportMailer {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(ReportMailer.class);
+
+    private final PermissionsService permissionsService;
+    private final MailManager mailManager;
+
+    @Inject
+    public ReportMailer(PermissionsService permissionsService, MailManager mailManager) {
+        this.permissionsService = permissionsService;
+        this.mailManager = mailManager;
+    }
+
+    public void sendAsync(long userId, ReportExecutor executor) {
+        new Thread(() -> {
+            try {
+                var stream = new ByteArrayOutputStream();
+                executor.execute(stream);
+
+                MimeBodyPart attachment = new MimeBodyPart();
+                attachment.setFileName("report.xlsx");
+                attachment.setDataHandler(new DataHandler(new ByteArrayDataSource(
+                        stream.toByteArray(), "application/octet-stream")));
+
+                User user = permissionsService.getUser(userId);
+                mailManager.sendMessage(user, false, "Report", "The report is in the attachment.", attachment);
+            } catch (StorageException | IOException | MessagingException e) {
+                LOGGER.warn("Email report failed", e);
+            }
+        }).start();
+    }
+
+}
diff --git a/src/main/java/org/traccar/reports/common/ReportUtils.java b/src/main/java/org/traccar/reports/common/ReportUtils.java
new file mode 100644
index 000000000..43db82708
--- /dev/null
+++ b/src/main/java/org/traccar/reports/common/ReportUtils.java
@@ -0,0 +1,406 @@
+/*
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2017 Andrey Kunitsyn (andrey@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.reports.common;
+
+import org.apache.velocity.app.VelocityEngine;
+import org.apache.velocity.tools.generic.DateTool;
+import org.apache.velocity.tools.generic.NumberTool;
+import org.jxls.area.Area;
+import org.jxls.builder.xls.XlsCommentAreaBuilder;
+import org.jxls.common.CellRef;
+import org.jxls.formula.StandardFormulaProcessor;
+import org.jxls.transform.Transformer;
+import org.jxls.transform.poi.PoiTransformer;
+import org.jxls.util.TransformerFactory;
+import org.traccar.api.security.PermissionsService;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.geocoder.Geocoder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.helper.model.AttributeUtil;
+import org.traccar.helper.model.PositionUtil;
+import org.traccar.helper.model.UserUtil;
+import org.traccar.model.BaseModel;
+import org.traccar.model.Device;
+import org.traccar.model.Driver;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+import org.traccar.model.User;
+import org.traccar.reports.model.BaseReportItem;
+import org.traccar.reports.model.StopReportItem;
+import org.traccar.reports.model.TripReportItem;
+import org.traccar.session.state.MotionProcessor;
+import org.traccar.session.state.MotionState;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Order;
+import org.traccar.storage.query.Request;
+
+import jakarta.annotation.Nullable;
+import jakarta.inject.Inject;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import java.time.Duration;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.Locale;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+public class ReportUtils {
+
+    private final Config config;
+    private final Storage storage;
+    private final PermissionsService permissionsService;
+    private final VelocityEngine velocityEngine;
+    private final Geocoder geocoder;
+
+    @Inject
+    public ReportUtils(
+            Config config, Storage storage, PermissionsService permissionsService,
+            VelocityEngine velocityEngine, @Nullable Geocoder geocoder) {
+        this.config = config;
+        this.storage = storage;
+        this.permissionsService = permissionsService;
+        this.velocityEngine = velocityEngine;
+        this.geocoder = geocoder;
+    }
+
+    public <T extends BaseModel> T getObject(
+            long userId, Class<T> clazz, long objectId) throws StorageException, SecurityException {
+        return storage.getObject(clazz, new Request(
+                new Columns.All(),
+                new Condition.And(
+                        new Condition.Equals("id", objectId),
+                        new Condition.Permission(User.class, userId, clazz))));
+    }
+
+    public void checkPeriodLimit(Date from, Date to) {
+        long limit = config.getLong(Keys.REPORT_PERIOD_LIMIT) * 1000;
+        if (limit > 0 && to.getTime() - from.getTime() > limit) {
+            throw new IllegalArgumentException("Time period exceeds the limit");
+        }
+    }
+
+    public double calculateFuel(Position firstPosition, Position lastPosition) {
+
+        if (firstPosition.getAttributes().get(Position.KEY_FUEL_LEVEL) != null
+                && lastPosition.getAttributes().get(Position.KEY_FUEL_LEVEL) != null) {
+
+            BigDecimal value = BigDecimal.valueOf(firstPosition.getDouble(Position.KEY_FUEL_LEVEL)
+                    - lastPosition.getDouble(Position.KEY_FUEL_LEVEL));
+            return value.setScale(1, RoundingMode.HALF_EVEN).doubleValue();
+        }
+        return 0;
+    }
+
+    public String findDriver(Position firstPosition, Position lastPosition) {
+        if (firstPosition.hasAttribute(Position.KEY_DRIVER_UNIQUE_ID)) {
+            return firstPosition.getString(Position.KEY_DRIVER_UNIQUE_ID);
+        } else if (lastPosition.hasAttribute(Position.KEY_DRIVER_UNIQUE_ID)) {
+            return lastPosition.getString(Position.KEY_DRIVER_UNIQUE_ID);
+        }
+        return null;
+    }
+
+    public String findDriverName(String driverUniqueId) throws StorageException {
+        if (driverUniqueId != null) {
+            Driver driver = storage.getObject(Driver.class, new Request(
+                    new Columns.All(),
+                    new Condition.Equals("uniqueId", driverUniqueId)));
+            if (driver != null) {
+                return driver.getName();
+            }
+        }
+        return null;
+    }
+
+    public org.jxls.common.Context initializeContext(long userId) throws StorageException {
+        var server = permissionsService.getServer();
+        var user = permissionsService.getUser(userId);
+        var context = PoiTransformer.createInitialContext();
+        context.putVar("distanceUnit", UserUtil.getDistanceUnit(server, user));
+        context.putVar("speedUnit", UserUtil.getSpeedUnit(server, user));
+        context.putVar("volumeUnit", UserUtil.getVolumeUnit(server, user));
+        context.putVar("webUrl", velocityEngine.getProperty("web.url"));
+        context.putVar("dateTool", new DateTool());
+        context.putVar("numberTool", new NumberTool());
+        context.putVar("timezone", UserUtil.getTimezone(server, user));
+        context.putVar("locale", Locale.getDefault());
+        context.putVar("bracketsRegex", "[\\{\\}\"]");
+        return context;
+    }
+
+    public void processTemplateWithSheets(
+            InputStream templateStream, OutputStream targetStream, org.jxls.common.Context context) throws IOException {
+
+        Transformer transformer = TransformerFactory.createTransformer(templateStream, targetStream);
+        List<Area> xlsAreas = new XlsCommentAreaBuilder(transformer).build();
+        for (Area xlsArea : xlsAreas) {
+            xlsArea.applyAt(new CellRef(xlsArea.getStartCellRef().getCellName()), context);
+            xlsArea.setFormulaProcessor(new StandardFormulaProcessor());
+            xlsArea.processFormulas();
+        }
+        transformer.deleteSheet(xlsAreas.get(0).getStartCellRef().getSheetName());
+        transformer.write();
+    }
+
+    private TripReportItem calculateTrip(
+            Device device, Position startTrip, Position endTrip, double maxSpeed,
+            boolean ignoreOdometer) throws StorageException {
+
+        TripReportItem trip = new TripReportItem();
+
+        long tripDuration = endTrip.getFixTime().getTime() - startTrip.getFixTime().getTime();
+        long deviceId = startTrip.getDeviceId();
+        trip.setDeviceId(deviceId);
+        trip.setDeviceName(device.getName());
+
+        trip.setStartPositionId(startTrip.getId());
+        trip.setStartLat(startTrip.getLatitude());
+        trip.setStartLon(startTrip.getLongitude());
+        trip.setStartTime(startTrip.getFixTime());
+        String startAddress = startTrip.getAddress();
+        if (startAddress == null && geocoder != null && config.getBoolean(Keys.GEOCODER_ON_REQUEST)) {
+            startAddress = geocoder.getAddress(startTrip.getLatitude(), startTrip.getLongitude(), null);
+        }
+        trip.setStartAddress(startAddress);
+
+        trip.setEndPositionId(endTrip.getId());
+        trip.setEndLat(endTrip.getLatitude());
+        trip.setEndLon(endTrip.getLongitude());
+        trip.setEndTime(endTrip.getFixTime());
+        String endAddress = endTrip.getAddress();
+        if (endAddress == null && geocoder != null && config.getBoolean(Keys.GEOCODER_ON_REQUEST)) {
+            endAddress = geocoder.getAddress(endTrip.getLatitude(), endTrip.getLongitude(), null);
+        }
+        trip.setEndAddress(endAddress);
+
+        trip.setDistance(PositionUtil.calculateDistance(startTrip, endTrip, !ignoreOdometer));
+        trip.setDuration(tripDuration);
+        if (tripDuration > 0) {
+            trip.setAverageSpeed(UnitsConverter.knotsFromMps(trip.getDistance() * 1000 / tripDuration));
+        }
+        trip.setMaxSpeed(maxSpeed);
+        trip.setSpentFuel(calculateFuel(startTrip, endTrip));
+
+        trip.setDriverUniqueId(findDriver(startTrip, endTrip));
+        trip.setDriverName(findDriverName(trip.getDriverUniqueId()));
+
+        if (!ignoreOdometer
+                && startTrip.getDouble(Position.KEY_ODOMETER) != 0
+                && endTrip.getDouble(Position.KEY_ODOMETER) != 0) {
+            trip.setStartOdometer(startTrip.getDouble(Position.KEY_ODOMETER));
+            trip.setEndOdometer(endTrip.getDouble(Position.KEY_ODOMETER));
+        } else {
+            trip.setStartOdometer(startTrip.getDouble(Position.KEY_TOTAL_DISTANCE));
+            trip.setEndOdometer(endTrip.getDouble(Position.KEY_TOTAL_DISTANCE));
+        }
+
+        return trip;
+    }
+
+    private StopReportItem calculateStop(
+            Device device, Position startStop, Position endStop, boolean ignoreOdometer) {
+
+        StopReportItem stop = new StopReportItem();
+
+        long deviceId = startStop.getDeviceId();
+        stop.setDeviceId(deviceId);
+        stop.setDeviceName(device.getName());
+
+        stop.setPositionId(startStop.getId());
+        stop.setLatitude(startStop.getLatitude());
+        stop.setLongitude(startStop.getLongitude());
+        stop.setStartTime(startStop.getFixTime());
+        String address = startStop.getAddress();
+        if (address == null && geocoder != null && config.getBoolean(Keys.GEOCODER_ON_REQUEST)) {
+            address = geocoder.getAddress(stop.getLatitude(), stop.getLongitude(), null);
+        }
+        stop.setAddress(address);
+
+        stop.setEndTime(endStop.getFixTime());
+
+        long stopDuration = endStop.getFixTime().getTime() - startStop.getFixTime().getTime();
+        stop.setDuration(stopDuration);
+        stop.setSpentFuel(calculateFuel(startStop, endStop));
+
+        if (startStop.hasAttribute(Position.KEY_HOURS) && endStop.hasAttribute(Position.KEY_HOURS)) {
+            stop.setEngineHours(endStop.getLong(Position.KEY_HOURS) - startStop.getLong(Position.KEY_HOURS));
+        }
+
+        if (!ignoreOdometer
+                && startStop.getDouble(Position.KEY_ODOMETER) != 0
+                && endStop.getDouble(Position.KEY_ODOMETER) != 0) {
+            stop.setStartOdometer(startStop.getDouble(Position.KEY_ODOMETER));
+            stop.setEndOdometer(endStop.getDouble(Position.KEY_ODOMETER));
+        } else {
+            stop.setStartOdometer(startStop.getDouble(Position.KEY_TOTAL_DISTANCE));
+            stop.setEndOdometer(endStop.getDouble(Position.KEY_TOTAL_DISTANCE));
+        }
+
+        return stop;
+
+    }
+
+    @SuppressWarnings("unchecked")
+    private <T extends BaseReportItem> T calculateTripOrStop(
+            Device device, Position startPosition, Position endPosition, double maxSpeed,
+            boolean ignoreOdometer, Class<T> reportClass) throws StorageException {
+
+        if (reportClass.equals(TripReportItem.class)) {
+            return (T) calculateTrip(device, startPosition, endPosition, maxSpeed, ignoreOdometer);
+        } else {
+            return (T) calculateStop(device, startPosition, endPosition, ignoreOdometer);
+        }
+    }
+
+    private boolean isMoving(List<Position> positions, int index, TripsConfig tripsConfig) {
+        if (tripsConfig.getMinimalNoDataDuration() > 0) {
+            boolean beforeGap = index < positions.size() - 1
+                    && positions.get(index + 1).getFixTime().getTime() - positions.get(index).getFixTime().getTime()
+                    >= tripsConfig.getMinimalNoDataDuration();
+            boolean afterGap = index > 0
+                    && positions.get(index).getFixTime().getTime() - positions.get(index - 1).getFixTime().getTime()
+                    >= tripsConfig.getMinimalNoDataDuration();
+            if (beforeGap || afterGap) {
+                return false;
+            }
+        }
+        return positions.get(index).getBoolean(Position.KEY_MOTION);
+    }
+
+    public <T extends BaseReportItem> List<T> detectTripsAndStops(
+            Device device, Date from, Date to, Class<T> reportClass) throws StorageException {
+
+        long threshold = config.getLong(Keys.REPORT_FAST_THRESHOLD);
+        if (Duration.between(from.toInstant(), to.toInstant()).toSeconds() > threshold) {
+            return fastTripsAndStops(device, from, to, reportClass);
+        } else {
+            return slowTripsAndStops(device, from, to, reportClass);
+        }
+    }
+
+    public <T extends BaseReportItem> List<T> slowTripsAndStops(
+            Device device, Date from, Date to, Class<T> reportClass) throws StorageException {
+
+        List<T> result = new ArrayList<>();
+        TripsConfig tripsConfig = new TripsConfig(
+                new AttributeUtil.StorageProvider(config, storage, permissionsService, device));
+        boolean ignoreOdometer = config.getBoolean(Keys.REPORT_IGNORE_ODOMETER);
+
+        var positions = PositionUtil.getPositions(storage, device.getId(), from, to);
+        if (!positions.isEmpty()) {
+            boolean trips = reportClass.equals(TripReportItem.class);
+
+            MotionState motionState = new MotionState();
+            boolean initialValue = isMoving(positions, 0, tripsConfig);
+            motionState.setMotionStreak(initialValue);
+            motionState.setMotionState(initialValue);
+
+            boolean detected = trips == motionState.getMotionState();
+            double maxSpeed = 0;
+            int startEventIndex = detected ? 0 : -1;
+            int startNoEventIndex = -1;
+            for (int i = 0; i < positions.size(); i++) {
+                boolean motion = isMoving(positions, i, tripsConfig);
+                if (motionState.getMotionState() != motion) {
+                    if (motion == trips) {
+                        if (!detected) {
+                            startEventIndex = i;
+                            maxSpeed = positions.get(i).getSpeed();
+                        }
+                        startNoEventIndex = -1;
+                    } else {
+                        startNoEventIndex = i;
+                    }
+                } else {
+                    maxSpeed = Math.max(maxSpeed, positions.get(i).getSpeed());
+                }
+
+                MotionProcessor.updateState(motionState, positions.get(i), motion, tripsConfig);
+                if (motionState.getEvent() != null) {
+                    if (motion == trips) {
+                        detected = true;
+                        startNoEventIndex = -1;
+                    } else if (startEventIndex >= 0 && startNoEventIndex >= 0) {
+                        result.add(calculateTripOrStop(
+                                device, positions.get(startEventIndex), positions.get(startNoEventIndex),
+                                maxSpeed, ignoreOdometer, reportClass));
+                        detected = false;
+                        startEventIndex = -1;
+                        startNoEventIndex = -1;
+                    }
+                }
+            }
+            if (detected & startEventIndex >= 0 && startEventIndex < positions.size() - 1) {
+                int endIndex = startNoEventIndex >= 0 ? startNoEventIndex : positions.size() - 1;
+                result.add(calculateTripOrStop(
+                        device, positions.get(startEventIndex), positions.get(endIndex),
+                        maxSpeed, ignoreOdometer, reportClass));
+            }
+        }
+
+        return result;
+    }
+
+    public <T extends BaseReportItem> List<T> fastTripsAndStops(
+            Device device, Date from, Date to, Class<T> reportClass) throws StorageException {
+
+        List<T> result = new ArrayList<>();
+        boolean ignoreOdometer = config.getBoolean(Keys.REPORT_IGNORE_ODOMETER);
+        boolean trips = reportClass.equals(TripReportItem.class);
+        Set<String> filter = Set.of(Event.TYPE_DEVICE_MOVING, Event.TYPE_DEVICE_STOPPED);
+
+        var events = storage.getObjects(Event.class, new Request(
+                new Columns.All(),
+                new Condition.And(
+                        new Condition.Equals("deviceId", device.getId()),
+                        new Condition.Between("eventTime", "from", from, "to", to)),
+                new Order("eventTime")));
+        var filteredEvents = events.stream()
+                .filter(event -> filter.contains(event.getType()))
+                .collect(Collectors.toList());
+
+        Event startEvent = null;
+        for (Event event : filteredEvents) {
+            boolean motion = event.getType().equals(Event.TYPE_DEVICE_MOVING);
+            if (motion == trips) {
+                startEvent = event;
+            } else if (startEvent != null) {
+                Position startPosition = storage.getObject(Position.class, new Request(
+                        new Columns.All(), new Condition.Equals("id", startEvent.getPositionId())));
+                Position endPosition = storage.getObject(Position.class, new Request(
+                        new Columns.All(), new Condition.Equals("id", event.getPositionId())));
+                if (startPosition != null && endPosition != null) {
+                    result.add(calculateTripOrStop(
+                            device, startPosition, endPosition, 0, ignoreOdometer, reportClass));
+                }
+                startEvent = null;
+            }
+        }
+
+        return result;
+    }
+
+}
diff --git a/src/main/java/org/traccar/reports/common/TripsConfig.java b/src/main/java/org/traccar/reports/common/TripsConfig.java
new file mode 100644
index 000000000..2792114d4
--- /dev/null
+++ b/src/main/java/org/traccar/reports/common/TripsConfig.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2017 - 2023 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.reports.common;
+
+import org.traccar.config.Keys;
+import org.traccar.helper.model.AttributeUtil;
+
+public class TripsConfig {
+
+    public TripsConfig(AttributeUtil.Provider attributeProvider) {
+        this(
+                AttributeUtil.lookup(attributeProvider, Keys.REPORT_TRIP_MINIMAL_TRIP_DISTANCE),
+                AttributeUtil.lookup(attributeProvider, Keys.REPORT_TRIP_MINIMAL_TRIP_DURATION) * 1000,
+                AttributeUtil.lookup(attributeProvider, Keys.REPORT_TRIP_MINIMAL_PARKING_DURATION) * 1000,
+                AttributeUtil.lookup(attributeProvider, Keys.REPORT_TRIP_MINIMAL_NO_DATA_DURATION) * 1000,
+                AttributeUtil.lookup(attributeProvider, Keys.REPORT_TRIP_USE_IGNITION));
+    }
+
+    public TripsConfig(
+            double minimalTripDistance, long minimalTripDuration, long minimalParkingDuration,
+            long minimalNoDataDuration, boolean useIgnition) {
+        this.minimalTripDistance = minimalTripDistance;
+        this.minimalTripDuration = minimalTripDuration;
+        this.minimalParkingDuration = minimalParkingDuration;
+        this.minimalNoDataDuration = minimalNoDataDuration;
+        this.useIgnition = useIgnition;
+    }
+
+    private final double minimalTripDistance;
+
+    public double getMinimalTripDistance() {
+        return minimalTripDistance;
+    }
+
+    private final long minimalTripDuration;
+
+    public long getMinimalTripDuration() {
+        return minimalTripDuration;
+    }
+
+    private final long minimalParkingDuration;
+
+    public long getMinimalParkingDuration() {
+        return minimalParkingDuration;
+    }
+
+    private final long minimalNoDataDuration;
+
+    public long getMinimalNoDataDuration() {
+        return minimalNoDataDuration;
+    }
+
+    private final boolean useIgnition;
+
+    public boolean getUseIgnition() {
+        return useIgnition;
+    }
+
+}
diff --git a/src/main/java/org/traccar/reports/model/BaseReport.java b/src/main/java/org/traccar/reports/model/BaseReportItem.java
index 928c0557d..6e270dfe3 100644
--- a/src/main/java/org/traccar/reports/model/BaseReport.java
+++ b/src/main/java/org/traccar/reports/model/BaseReportItem.java
@@ -18,7 +18,7 @@ package org.traccar.reports.model;
 
 import java.util.Date;
 
-public class BaseReport {
+public class BaseReportItem {
 
     private long deviceId;
 
diff --git a/src/main/java/org/traccar/reports/model/CombinedReportItem.java b/src/main/java/org/traccar/reports/model/CombinedReportItem.java
new file mode 100644
index 000000000..810e00916
--- /dev/null
+++ b/src/main/java/org/traccar/reports/model/CombinedReportItem.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.reports.model;
+
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+
+import java.util.List;
+
+public class CombinedReportItem {
+
+    private long deviceId;
+
+    public long getDeviceId() {
+        return deviceId;
+    }
+
+    public void setDeviceId(long deviceId) {
+        this.deviceId = deviceId;
+    }
+
+    private List<double[]> route;
+
+    public List<double[]> getRoute() {
+        return route;
+    }
+
+    public void setRoute(List<double[]> route) {
+        this.route = route;
+    }
+
+    private List<Event> events;
+
+    public List<Event> getEvents() {
+        return events;
+    }
+
+    public void setEvents(List<Event> events) {
+        this.events = events;
+    }
+
+    private List<Position> positions;
+
+    public List<Position> getPositions() {
+        return positions;
+    }
+
+    public void setPositions(List<Position> positions) {
+        this.positions = positions;
+    }
+
+}
diff --git a/src/main/java/org/traccar/reports/model/DeviceReport.java b/src/main/java/org/traccar/reports/model/DeviceReportSection.java
index 932753d15..ffc4d774f 100644
--- a/src/main/java/org/traccar/reports/model/DeviceReport.java
+++ b/src/main/java/org/traccar/reports/model/DeviceReportSection.java
@@ -20,7 +20,7 @@ import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 
-public class DeviceReport {
+public class DeviceReportSection {
 
     private String deviceName;
 
diff --git a/src/main/java/org/traccar/reports/model/StopReport.java b/src/main/java/org/traccar/reports/model/StopReportItem.java
index e20f2c503..3c35bdc21 100644
--- a/src/main/java/org/traccar/reports/model/StopReport.java
+++ b/src/main/java/org/traccar/reports/model/StopReportItem.java
@@ -16,7 +16,7 @@
  */
 package org.traccar.reports.model;
 
-public class StopReport extends BaseReport  {
+public class StopReportItem extends BaseReportItem {
 
     private long positionId;
 
diff --git a/src/main/java/org/traccar/reports/model/SummaryReport.java b/src/main/java/org/traccar/reports/model/SummaryReportItem.java
index 886f8b9e2..44a15cf1d 100644
--- a/src/main/java/org/traccar/reports/model/SummaryReport.java
+++ b/src/main/java/org/traccar/reports/model/SummaryReportItem.java
@@ -16,7 +16,7 @@
  */
 package org.traccar.reports.model;
 
-public class SummaryReport extends BaseReport {
+public class SummaryReportItem extends BaseReportItem {
 
     private long engineHours; // milliseconds
 
diff --git a/src/main/java/org/traccar/reports/model/TripReport.java b/src/main/java/org/traccar/reports/model/TripReportItem.java
index 151c34bd5..332a34cca 100644
--- a/src/main/java/org/traccar/reports/model/TripReport.java
+++ b/src/main/java/org/traccar/reports/model/TripReportItem.java
@@ -16,7 +16,7 @@
  */
 package org.traccar.reports.model;
 
-public class TripReport extends BaseReport {
+public class TripReportItem extends BaseReportItem {
 
     private long startPositionId;
 
diff --git a/src/main/java/org/traccar/reports/model/TripsConfig.java b/src/main/java/org/traccar/reports/model/TripsConfig.java
deleted file mode 100644
index 0f0c615d3..000000000
--- a/src/main/java/org/traccar/reports/model/TripsConfig.java
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * Copyright 2017 Anton Tananaev (anton@traccar.org)
- * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.reports.model;
-
-public class TripsConfig {
-
-    public TripsConfig() {
-    }
-
-    public TripsConfig(double minimalTripDistance, long minimalTripDuration, long minimalParkingDuration,
-            long minimalNoDataDuration, boolean useIgnition, boolean processInvalidPositions, double speedThreshold) {
-        this.minimalTripDistance = minimalTripDistance;
-        this.minimalTripDuration = minimalTripDuration;
-        this.minimalParkingDuration = minimalParkingDuration;
-        this.minimalNoDataDuration = minimalNoDataDuration;
-        this.useIgnition = useIgnition;
-        this.processInvalidPositions = processInvalidPositions;
-        this.speedThreshold = speedThreshold;
-    }
-
-    private double minimalTripDistance;
-
-    public double getMinimalTripDistance() {
-        return minimalTripDistance;
-    }
-
-    public void setMinimalTripDistance(double minimalTripDistance) {
-        this.minimalTripDistance = minimalTripDistance;
-    }
-
-    private long minimalTripDuration;
-
-    public long getMinimalTripDuration() {
-        return minimalTripDuration;
-    }
-
-    public void setMinimalTripDuration(long minimalTripDuration) {
-        this.minimalTripDuration = minimalTripDuration;
-    }
-
-    private long minimalParkingDuration;
-
-    public long getMinimalParkingDuration() {
-        return minimalParkingDuration;
-    }
-
-    public void setMinimalParkingDuration(long minimalParkingDuration) {
-        this.minimalParkingDuration = minimalParkingDuration;
-    }
-
-    private long minimalNoDataDuration;
-
-    public long getMinimalNoDataDuration() {
-        return minimalNoDataDuration;
-    }
-
-    public void setMinimalNoDataDuration(long minimalNoDataDuration) {
-        this.minimalNoDataDuration = minimalNoDataDuration;
-    }
-
-    private boolean useIgnition;
-
-    public boolean getUseIgnition() {
-        return useIgnition;
-    }
-
-    public void setUseIgnition(boolean useIgnition) {
-        this.useIgnition = useIgnition;
-    }
-
-    private boolean processInvalidPositions;
-
-    public boolean getProcessInvalidPositions() {
-        return processInvalidPositions;
-    }
-
-    public void setProcessInvalidPositions(boolean processInvalidPositions) {
-        this.processInvalidPositions = processInvalidPositions;
-    }
-
-    private double speedThreshold;
-
-    public double getSpeedThreshold() {
-        return speedThreshold;
-    }
-
-    public void setSpeedThreshold(double speedThreshold) {
-        this.speedThreshold = speedThreshold;
-    }
-
-}
diff --git a/src/main/java/org/traccar/schedule/ScheduleManager.java b/src/main/java/org/traccar/schedule/ScheduleManager.java
index 7a3d33b85..07cdb1fe1 100644
--- a/src/main/java/org/traccar/schedule/ScheduleManager.java
+++ b/src/main/java/org/traccar/schedule/ScheduleManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2020 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,22 +15,35 @@
  */
 package org.traccar.schedule;
 
+import com.google.inject.Injector;
 import org.traccar.LifecycleObject;
 
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.util.List;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
 
+@Singleton
 public class ScheduleManager implements LifecycleObject {
 
+    private final Injector injector;
     private ScheduledExecutorService executor;
 
+    @Inject
+    public ScheduleManager(Injector injector) {
+        this.injector = injector;
+    }
+
     @Override
     public void start() {
         executor = Executors.newSingleThreadScheduledExecutor();
-
-        new TaskDeviceInactivityCheck().schedule(executor);
-        new TaskWebSocketKeepalive().schedule(executor);
-        new TaskHealthCheck().schedule(executor);
+        var tasks = List.of(
+                TaskReports.class,
+                TaskDeviceInactivityCheck.class,
+                TaskWebSocketKeepalive.class,
+                TaskHealthCheck.class);
+        tasks.forEach(task -> injector.getInstance(task).schedule(executor));
     }
 
     @Override
diff --git a/src/main/java/org/traccar/database/OrderManager.java b/src/main/java/org/traccar/schedule/ScheduleTask.java
index c3253e52f..1b537213b 100644
--- a/src/main/java/org/traccar/database/OrderManager.java
+++ b/src/main/java/org/traccar/schedule/ScheduleTask.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,14 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.traccar.database;
+package org.traccar.schedule;
 
-import org.traccar.model.Order;
-
-public class OrderManager extends ExtendedObjectManager<Order> {
-
-    public OrderManager(DataManager dataManager) {
-        super(dataManager, Order.class);
-    }
+import java.util.concurrent.ScheduledExecutorService;
 
+public interface ScheduleTask extends Runnable {
+    void schedule(ScheduledExecutorService executor);
 }
diff --git a/src/main/java/org/traccar/schedule/TaskDeviceInactivityCheck.java b/src/main/java/org/traccar/schedule/TaskDeviceInactivityCheck.java
index 80641d7d4..8e45568d5 100644
--- a/src/main/java/org/traccar/schedule/TaskDeviceInactivityCheck.java
+++ b/src/main/java/org/traccar/schedule/TaskDeviceInactivityCheck.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2020 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,17 +15,28 @@
  */
 package org.traccar.schedule;
 
-import org.traccar.Context;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.database.NotificationManager;
 import org.traccar.model.Device;
 import org.traccar.model.Event;
+import org.traccar.model.Group;
 import org.traccar.model.Position;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Request;
 
+import jakarta.inject.Inject;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
 
-public class TaskDeviceInactivityCheck implements Runnable {
+public class TaskDeviceInactivityCheck implements ScheduleTask {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(TaskDeviceInactivityCheck.class);
 
     public static final String ATTRIBUTE_DEVICE_INACTIVITY_START = "deviceInactivityStart";
     public static final String ATTRIBUTE_DEVICE_INACTIVITY_PERIOD = "deviceInactivityPeriod";
@@ -33,6 +44,16 @@ public class TaskDeviceInactivityCheck implements Runnable {
 
     private static final long CHECK_PERIOD_MINUTES = 15;
 
+    private final Storage storage;
+    private final NotificationManager notificationManager;
+
+    @Inject
+    public TaskDeviceInactivityCheck(Storage storage, NotificationManager notificationManager) {
+        this.storage = storage;
+        this.notificationManager = notificationManager;
+    }
+
+    @Override
     public void schedule(ScheduledExecutorService executor) {
         executor.scheduleAtFixedRate(this, CHECK_PERIOD_MINUTES, CHECK_PERIOD_MINUTES, TimeUnit.MINUTES);
     }
@@ -43,19 +64,47 @@ public class TaskDeviceInactivityCheck implements Runnable {
         long checkPeriod = TimeUnit.MINUTES.toMillis(CHECK_PERIOD_MINUTES);
 
         Map<Event, Position> events = new HashMap<>();
-        for (Device device : Context.getDeviceManager().getAllDevices()) {
-            if (device.getLastUpdate() != null && checkDevice(device, currentTime, checkPeriod)) {
-                Event event = new Event(Event.TYPE_DEVICE_INACTIVE, device.getId());
-                event.set(ATTRIBUTE_LAST_UPDATE, device.getLastUpdate().getTime());
-                events.put(event, null);
+
+        try {
+            Map<Long, Group> groups = storage.getObjects(Group.class, new Request(new Columns.All()))
+                    .stream().collect(Collectors.toMap(Group::getId, group -> group));
+            for (Device device : storage.getObjects(Device.class, new Request(new Columns.All()))) {
+                if (device.getLastUpdate() != null && checkDevice(device, groups, currentTime, checkPeriod)) {
+                    Event event = new Event(Event.TYPE_DEVICE_INACTIVE, device.getId());
+                    event.set(ATTRIBUTE_LAST_UPDATE, device.getLastUpdate().getTime());
+                    events.put(event, null);
+                }
             }
+        } catch (StorageException e) {
+            LOGGER.warn("Database error", e);
         }
 
-        Context.getNotificationManager().updateEvents(events);
+        notificationManager.updateEvents(events);
+    }
+
+    private long getAttribute(Device device, Map<Long, Group> groups, String key) {
+        long deviceValue = device.getLong(key);
+        if (deviceValue > 0) {
+            return deviceValue;
+        } else {
+            long groupId = device.getGroupId();
+            while (groupId > 0) {
+                Group group = groups.get(groupId);
+                if (group == null) {
+                    return 0;
+                }
+                long groupValue = group.getLong(key);
+                if (groupValue > 0) {
+                    return groupValue;
+                }
+                groupId = group.getGroupId();
+            }
+            return 0;
+        }
     }
 
-    private boolean checkDevice(Device device, long currentTime, long checkPeriod) {
-        long deviceInactivityStart = device.getLong(ATTRIBUTE_DEVICE_INACTIVITY_START);
+    private boolean checkDevice(Device device, Map<Long, Group> groups, long currentTime, long checkPeriod) {
+        long deviceInactivityStart = getAttribute(device, groups, ATTRIBUTE_DEVICE_INACTIVITY_START);
         if (deviceInactivityStart > 0) {
             long timeThreshold = device.getLastUpdate().getTime() + deviceInactivityStart;
             if (currentTime >= timeThreshold) {
@@ -64,7 +113,7 @@ public class TaskDeviceInactivityCheck implements Runnable {
                     return true;
                 }
 
-                long deviceInactivityPeriod = device.getLong(ATTRIBUTE_DEVICE_INACTIVITY_PERIOD);
+                long deviceInactivityPeriod = getAttribute(device, groups, ATTRIBUTE_DEVICE_INACTIVITY_PERIOD);
                 if (deviceInactivityPeriod > 0) {
                     long count = (currentTime - timeThreshold - 1) / deviceInactivityPeriod;
                     timeThreshold += count * deviceInactivityPeriod;
diff --git a/src/main/java/org/traccar/schedule/TaskHealthCheck.java b/src/main/java/org/traccar/schedule/TaskHealthCheck.java
index 087cd3e63..abdc5af48 100644
--- a/src/main/java/org/traccar/schedule/TaskHealthCheck.java
+++ b/src/main/java/org/traccar/schedule/TaskHealthCheck.java
@@ -19,23 +19,31 @@ import com.sun.jna.Library;
 import com.sun.jna.Native;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.traccar.Context;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 
+import jakarta.inject.Inject;
+import jakarta.ws.rs.client.Client;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.TimeUnit;
 
-public class TaskHealthCheck implements Runnable {
+public class TaskHealthCheck implements ScheduleTask {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(TaskHealthCheck.class);
 
+    private final Config config;
+    private final Client client;
+
     private SystemD systemD;
 
     private boolean enabled;
     private long period;
 
-    public TaskHealthCheck() {
-        if (!Context.getConfig().getBoolean(Keys.WEB_DISABLE_HEALTH_CHECK)
+    @Inject
+    public TaskHealthCheck(Config config, Client client) {
+        this.config = config;
+        this.client = client;
+        if (!config.getBoolean(Keys.WEB_DISABLE_HEALTH_CHECK)
                 && System.getProperty("os.name").toLowerCase().startsWith("linux")) {
             try {
                 systemD = Native.load("systemd", SystemD.class);
@@ -54,11 +62,12 @@ public class TaskHealthCheck implements Runnable {
     }
 
     private String getUrl() {
-        String address = Context.getConfig().getString(Keys.WEB_ADDRESS, "localhost");
-        int port = Context.getConfig().getInteger(Keys.WEB_PORT);
+        String address = config.getString(Keys.WEB_ADDRESS, "localhost");
+        int port = config.getInteger(Keys.WEB_PORT);
         return "http://" + address + ":" + port + "/api/server";
     }
 
+    @Override
     public void schedule(ScheduledExecutorService executor) {
         if (enabled) {
             executor.scheduleAtFixedRate(this, period, period, TimeUnit.MILLISECONDS);
@@ -68,7 +77,7 @@ public class TaskHealthCheck implements Runnable {
     @Override
     public void run() {
         LOGGER.debug("Health check running");
-        int status = Context.getClient().target(getUrl()).request().get().getStatus();
+        int status = client.target(getUrl()).request().get().getStatus();
         if (status == 200) {
             int result = systemD.sd_notify(0, "WATCHDOG=1");
             if (result < 0) {
diff --git a/src/main/java/org/traccar/schedule/TaskReports.java b/src/main/java/org/traccar/schedule/TaskReports.java
new file mode 100644
index 000000000..30f20f437
--- /dev/null
+++ b/src/main/java/org/traccar/schedule/TaskReports.java
@@ -0,0 +1,146 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.schedule;
+
+import com.google.inject.Injector;
+import com.google.inject.servlet.RequestScoper;
+import com.google.inject.servlet.ServletScopes;
+import net.fortuna.ical4j.model.Period;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.model.BaseModel;
+import org.traccar.model.Calendar;
+import org.traccar.model.Device;
+import org.traccar.model.Group;
+import org.traccar.model.Report;
+import org.traccar.model.User;
+import org.traccar.reports.EventsReportProvider;
+import org.traccar.reports.RouteReportProvider;
+import org.traccar.reports.StopsReportProvider;
+import org.traccar.reports.SummaryReportProvider;
+import org.traccar.reports.TripsReportProvider;
+import org.traccar.reports.common.ReportMailer;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import java.util.Collections;
+import java.util.Date;
+import java.util.List;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
+
+public class TaskReports implements ScheduleTask {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(TaskReports.class);
+
+    private static final long CHECK_PERIOD_MINUTES = 1;
+
+    private final Storage storage;
+    private final Injector injector;
+
+    @Inject
+    public TaskReports(Storage storage, Injector injector) {
+        this.storage = storage;
+        this.injector = injector;
+    }
+
+    @Override
+    public void schedule(ScheduledExecutorService executor) {
+        executor.scheduleAtFixedRate(this, CHECK_PERIOD_MINUTES, CHECK_PERIOD_MINUTES, TimeUnit.MINUTES);
+    }
+
+    @Override
+    public void run() {
+        Date currentCheck = new Date();
+        Date lastCheck = new Date(System.currentTimeMillis() - TimeUnit.MINUTES.toMillis(CHECK_PERIOD_MINUTES));
+
+        try {
+            for (Report report : storage.getObjects(Report.class, new Request(new Columns.All()))) {
+                Calendar calendar = storage.getObject(Calendar.class, new Request(
+                        new Columns.All(), new Condition.Equals("id", report.getCalendarId())));
+
+                var lastEvents = calendar.findPeriods(lastCheck);
+                var currentEvents = calendar.findPeriods(currentCheck);
+
+                if (!lastEvents.isEmpty() && currentEvents.isEmpty()) {
+                    Period period = lastEvents.iterator().next();
+                    RequestScoper scope = ServletScopes.scopeRequest(Collections.emptyMap());
+                    try (RequestScoper.CloseableScope ignored = scope.open()) {
+                        executeReport(report, period.getStart(), period.getEnd());
+                    }
+                }
+            }
+        } catch (StorageException e) {
+            LOGGER.warn("Scheduled reports error", e);
+        }
+    }
+
+    private void executeReport(Report report, Date from, Date to) throws StorageException {
+
+        var deviceIds = storage.getObjects(Device.class, new Request(
+                new Columns.Include("id"),
+                new Condition.Permission(Device.class, Report.class, report.getId())))
+                .stream().map(BaseModel::getId).collect(Collectors.toList());
+        var groupIds = storage.getObjects(Group.class, new Request(
+                new Columns.Include("id"),
+                new Condition.Permission(Group.class, Report.class, report.getId())))
+                .stream().map(BaseModel::getId).collect(Collectors.toList());
+        var users = storage.getObjects(User.class, new Request(
+                new Columns.Include("id"),
+                new Condition.Permission(User.class, Report.class, report.getId())));
+
+        ReportMailer reportMailer = injector.getInstance(ReportMailer.class);
+
+        for (User user : users) {
+            switch (report.getType()) {
+                case "events":
+                    var eventsReportProvider = injector.getInstance(EventsReportProvider.class);
+                    reportMailer.sendAsync(user.getId(), stream -> eventsReportProvider.getExcel(
+                            stream, user.getId(), deviceIds, groupIds, List.of(), from, to));
+                    break;
+                case "route":
+                    var routeReportProvider = injector.getInstance(RouteReportProvider.class);
+                    reportMailer.sendAsync(user.getId(), stream -> routeReportProvider.getExcel(
+                            stream, user.getId(), deviceIds, groupIds, from, to));
+                    break;
+                case "summary":
+                    var summaryReportProvider = injector.getInstance(SummaryReportProvider.class);
+                    reportMailer.sendAsync(user.getId(), stream -> summaryReportProvider.getExcel(
+                            stream, user.getId(), deviceIds, groupIds, from, to, false));
+                    break;
+                case "trips":
+                    var tripsReportProvider = injector.getInstance(TripsReportProvider.class);
+                    reportMailer.sendAsync(user.getId(), stream -> tripsReportProvider.getExcel(
+                            stream, user.getId(), deviceIds, groupIds, from, to));
+                    break;
+                case "stops":
+                    var stopsReportProvider = injector.getInstance(StopsReportProvider.class);
+                    reportMailer.sendAsync(user.getId(), stream -> stopsReportProvider.getExcel(
+                            stream, user.getId(), deviceIds, groupIds, from, to));
+                    break;
+                default:
+                    LOGGER.warn("Unsupported report type {}", report.getType());
+                    break;
+            }
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/schedule/TaskWebSocketKeepalive.java b/src/main/java/org/traccar/schedule/TaskWebSocketKeepalive.java
index 953b0efea..d9e0c6f0b 100644
--- a/src/main/java/org/traccar/schedule/TaskWebSocketKeepalive.java
+++ b/src/main/java/org/traccar/schedule/TaskWebSocketKeepalive.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2021 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,22 +15,31 @@
  */
 package org.traccar.schedule;
 
-import org.traccar.Context;
+import org.traccar.session.ConnectionManager;
 
+import jakarta.inject.Inject;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.TimeUnit;
 
-public class TaskWebSocketKeepalive implements Runnable {
+public class TaskWebSocketKeepalive implements ScheduleTask {
 
     private static final long PERIOD_SECONDS = 55;
 
+    private final ConnectionManager connectionManager;
+
+    @Inject
+    public TaskWebSocketKeepalive(ConnectionManager connectionManager) {
+        this.connectionManager = connectionManager;
+    }
+
+    @Override
     public void schedule(ScheduledExecutorService executor) {
         executor.scheduleAtFixedRate(this, PERIOD_SECONDS, PERIOD_SECONDS, TimeUnit.SECONDS);
     }
 
     @Override
     public void run() {
-        Context.getConnectionManager().sendKeepalive();
+        connectionManager.sendKeepalive();
     }
 
 }
diff --git a/src/main/java/org/traccar/session/ConnectionManager.java b/src/main/java/org/traccar/session/ConnectionManager.java
new file mode 100644
index 000000000..28214840d
--- /dev/null
+++ b/src/main/java/org/traccar/session/ConnectionManager.java
@@ -0,0 +1,376 @@
+/*
+ * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.session;
+
+import io.netty.channel.Channel;
+import io.netty.util.Timeout;
+import io.netty.util.Timer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.Protocol;
+import org.traccar.broadcast.BroadcastInterface;
+import org.traccar.broadcast.BroadcastService;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.database.DeviceLookupService;
+import org.traccar.database.NotificationManager;
+import org.traccar.model.BaseModel;
+import org.traccar.model.Device;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+import org.traccar.model.User;
+import org.traccar.session.cache.CacheManager;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.net.InetSocketAddress;
+import java.net.SocketAddress;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
+
+@Singleton
+public class ConnectionManager implements BroadcastInterface {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(ConnectionManager.class);
+
+    private final long deviceTimeout;
+
+    private final Map<Long, DeviceSession> sessionsByDeviceId = new ConcurrentHashMap<>();
+    private final Map<Endpoint, Map<String, DeviceSession>> sessionsByEndpoint = new ConcurrentHashMap<>();
+
+    private final Config config;
+    private final CacheManager cacheManager;
+    private final Storage storage;
+    private final NotificationManager notificationManager;
+    private final Timer timer;
+    private final BroadcastService broadcastService;
+    private final DeviceLookupService deviceLookupService;
+
+    private final Map<Long, Set<UpdateListener>> listeners = new HashMap<>();
+    private final Map<Long, Set<Long>> userDevices = new HashMap<>();
+    private final Map<Long, Set<Long>> deviceUsers = new HashMap<>();
+
+    private final Map<Long, Timeout> timeouts = new ConcurrentHashMap<>();
+
+    @Inject
+    public ConnectionManager(
+            Config config, CacheManager cacheManager, Storage storage,
+            NotificationManager notificationManager, Timer timer, BroadcastService broadcastService,
+            DeviceLookupService deviceLookupService) {
+        this.config = config;
+        this.cacheManager = cacheManager;
+        this.storage = storage;
+        this.notificationManager = notificationManager;
+        this.timer = timer;
+        this.broadcastService = broadcastService;
+        this.deviceLookupService = deviceLookupService;
+        deviceTimeout = config.getLong(Keys.STATUS_TIMEOUT);
+        broadcastService.registerListener(this);
+    }
+
+    public DeviceSession getDeviceSession(long deviceId) {
+        return sessionsByDeviceId.get(deviceId);
+    }
+
+    public DeviceSession getDeviceSession(
+            Protocol protocol, Channel channel, SocketAddress remoteAddress,
+            String... uniqueIds) throws StorageException {
+
+        Endpoint endpoint = new Endpoint(channel, remoteAddress);
+        Map<String, DeviceSession> endpointSessions = sessionsByEndpoint.getOrDefault(
+                endpoint, new ConcurrentHashMap<>());
+
+        uniqueIds = Arrays.stream(uniqueIds).filter(Objects::nonNull).toArray(String[]::new);
+        if (uniqueIds.length > 0) {
+            for (String uniqueId : uniqueIds) {
+                DeviceSession deviceSession = endpointSessions.get(uniqueId);
+                if (deviceSession != null) {
+                    return deviceSession;
+                }
+            }
+        } else {
+            return endpointSessions.values().stream().findAny().orElse(null);
+        }
+
+        Device device = deviceLookupService.lookup(uniqueIds);
+
+        if (device == null && config.getBoolean(Keys.DATABASE_REGISTER_UNKNOWN)) {
+            if (uniqueIds[0].matches(config.getString(Keys.DATABASE_REGISTER_UNKNOWN_REGEX))) {
+                device = addUnknownDevice(uniqueIds[0]);
+            }
+        }
+
+        if (device != null) {
+            device.checkDisabled();
+
+            DeviceSession oldSession = sessionsByDeviceId.remove(device.getId());
+            if (oldSession != null) {
+                Endpoint oldEndpoint = new Endpoint(oldSession.getChannel(), oldSession.getRemoteAddress());
+                Map<String, DeviceSession> oldEndpointSessions = sessionsByEndpoint.get(oldEndpoint);
+                if (oldEndpointSessions != null && oldEndpointSessions.size() > 1) {
+                    oldEndpointSessions.remove(device.getUniqueId());
+                } else {
+                    sessionsByEndpoint.remove(oldEndpoint);
+                }
+            }
+
+            DeviceSession deviceSession = new DeviceSession(
+                    device.getId(), device.getUniqueId(), protocol, channel, remoteAddress);
+            endpointSessions.put(device.getUniqueId(), deviceSession);
+            sessionsByEndpoint.put(endpoint, endpointSessions);
+            sessionsByDeviceId.put(device.getId(), deviceSession);
+
+            if (oldSession == null) {
+                cacheManager.addDevice(device.getId());
+            }
+
+            return deviceSession;
+        } else {
+            LOGGER.warn("Unknown device - " + String.join(" ", uniqueIds)
+                    + " (" + ((InetSocketAddress) remoteAddress).getHostString() + ")");
+            return null;
+        }
+    }
+
+    private Device addUnknownDevice(String uniqueId) {
+        Device device = new Device();
+        device.setName(uniqueId);
+        device.setUniqueId(uniqueId);
+        device.setCategory(config.getString(Keys.DATABASE_REGISTER_UNKNOWN_DEFAULT_CATEGORY));
+
+        long defaultGroupId = config.getLong(Keys.DATABASE_REGISTER_UNKNOWN_DEFAULT_GROUP_ID);
+        if (defaultGroupId != 0) {
+            device.setGroupId(defaultGroupId);
+        }
+
+        try {
+            device.setId(storage.addObject(device, new Request(new Columns.Exclude("id"))));
+            LOGGER.info("Automatically registered " + uniqueId);
+            return device;
+        } catch (StorageException e) {
+            LOGGER.warn("Automatic registration failed", e);
+            return null;
+        }
+    }
+
+    public void deviceDisconnected(Channel channel, boolean supportsOffline) {
+        Endpoint endpoint = new Endpoint(channel, channel.remoteAddress());
+        Map<String, DeviceSession> endpointSessions = sessionsByEndpoint.remove(endpoint);
+        if (endpointSessions != null) {
+            for (DeviceSession deviceSession : endpointSessions.values()) {
+                if (supportsOffline) {
+                    updateDevice(deviceSession.getDeviceId(), Device.STATUS_OFFLINE, null);
+                }
+                sessionsByDeviceId.remove(deviceSession.getDeviceId());
+                cacheManager.removeDevice(deviceSession.getDeviceId());
+            }
+        }
+    }
+
+    public void deviceUnknown(long deviceId) {
+        updateDevice(deviceId, Device.STATUS_UNKNOWN, null);
+        removeDeviceSession(deviceId);
+    }
+
+    private void removeDeviceSession(long deviceId) {
+        DeviceSession deviceSession = sessionsByDeviceId.remove(deviceId);
+        if (deviceSession != null) {
+            cacheManager.removeDevice(deviceId);
+            Endpoint endpoint = new Endpoint(deviceSession.getChannel(), deviceSession.getRemoteAddress());
+            sessionsByEndpoint.computeIfPresent(endpoint, (e, sessions) -> {
+                sessions.remove(deviceSession.getUniqueId());
+                return sessions.isEmpty() ? null : sessions;
+            });
+        }
+    }
+
+    public void updateDevice(long deviceId, String status, Date time) {
+        Device device = cacheManager.getObject(Device.class, deviceId);
+        if (device == null) {
+            try {
+                device = storage.getObject(Device.class, new Request(
+                        new Columns.All(), new Condition.Equals("id", deviceId)));
+            } catch (StorageException e) {
+                LOGGER.warn("Failed to get device", e);
+            }
+            if (device == null) {
+                return;
+            }
+        }
+
+        String oldStatus = device.getStatus();
+        device.setStatus(status);
+
+        if (!status.equals(oldStatus)) {
+            String eventType;
+            Map<Event, Position> events = new HashMap<>();
+            switch (status) {
+                case Device.STATUS_ONLINE:
+                    eventType = Event.TYPE_DEVICE_ONLINE;
+                    break;
+                case Device.STATUS_UNKNOWN:
+                    eventType = Event.TYPE_DEVICE_UNKNOWN;
+                    break;
+                default:
+                    eventType = Event.TYPE_DEVICE_OFFLINE;
+                    break;
+            }
+            events.put(new Event(eventType, deviceId), null);
+            notificationManager.updateEvents(events);
+        }
+
+        if (time != null) {
+            device.setLastUpdate(time);
+        }
+
+        Timeout timeout = timeouts.remove(deviceId);
+        if (timeout != null) {
+            timeout.cancel();
+        }
+
+        if (status.equals(Device.STATUS_ONLINE)) {
+            timeouts.put(deviceId, timer.newTimeout(timeout1 -> {
+                if (!timeout1.isCancelled()) {
+                    deviceUnknown(deviceId);
+                }
+            }, deviceTimeout, TimeUnit.SECONDS));
+        }
+
+        try {
+            storage.updateObject(device, new Request(
+                    new Columns.Include("status", "lastUpdate"),
+                    new Condition.Equals("id", deviceId)));
+        } catch (StorageException e) {
+            LOGGER.warn("Update device status error", e);
+        }
+
+        updateDevice(true, device);
+    }
+
+    public synchronized void sendKeepalive() {
+        for (Set<UpdateListener> userListeners : listeners.values()) {
+            for (UpdateListener listener : userListeners) {
+                listener.onKeepalive();
+            }
+        }
+    }
+
+    @Override
+    public synchronized void updateDevice(boolean local, Device device) {
+        if (local) {
+            broadcastService.updateDevice(true, device);
+        } else if (Device.STATUS_ONLINE.equals(device.getStatus())) {
+            timeouts.remove(device.getId());
+            removeDeviceSession(device.getId());
+        }
+        for (long userId : deviceUsers.getOrDefault(device.getId(), Collections.emptySet())) {
+            if (listeners.containsKey(userId)) {
+                for (UpdateListener listener : listeners.get(userId)) {
+                    listener.onUpdateDevice(device);
+                }
+            }
+        }
+    }
+
+    @Override
+    public synchronized void updatePosition(boolean local, Position position) {
+        if (local) {
+            broadcastService.updatePosition(true, position);
+        }
+        for (long userId : deviceUsers.getOrDefault(position.getDeviceId(), Collections.emptySet())) {
+            if (listeners.containsKey(userId)) {
+                for (UpdateListener listener : listeners.get(userId)) {
+                    listener.onUpdatePosition(position);
+                }
+            }
+        }
+    }
+
+    @Override
+    public synchronized void updateEvent(boolean local, long userId, Event event) {
+        if (local) {
+            broadcastService.updateEvent(true, userId, event);
+        }
+        if (listeners.containsKey(userId)) {
+            for (UpdateListener listener : listeners.get(userId)) {
+                listener.onUpdateEvent(event);
+            }
+        }
+    }
+
+    @Override
+    public synchronized void invalidatePermission(
+            boolean local,
+            Class<? extends BaseModel> clazz1, long id1,
+            Class<? extends BaseModel> clazz2, long id2) {
+        if (clazz1.equals(User.class) && clazz2.equals(Device.class)) {
+            if (listeners.containsKey(id1)) {
+                userDevices.get(id1).add(id2);
+                deviceUsers.put(id2, new HashSet<>(List.of(id1)));
+            }
+        }
+    }
+
+    public interface UpdateListener {
+        void onKeepalive();
+        void onUpdateDevice(Device device);
+        void onUpdatePosition(Position position);
+        void onUpdateEvent(Event event);
+    }
+
+    public synchronized void addListener(long userId, UpdateListener listener) throws StorageException {
+        var set = listeners.get(userId);
+        if (set == null) {
+            set = new HashSet<>();
+            listeners.put(userId, set);
+
+            var devices = storage.getObjects(Device.class, new Request(
+                    new Columns.Include("id"), new Condition.Permission(User.class, userId, Device.class)));
+            userDevices.put(userId, devices.stream().map(BaseModel::getId).collect(Collectors.toSet()));
+            devices.forEach(device -> deviceUsers.computeIfAbsent(device.getId(), id -> new HashSet<>()).add(userId));
+        }
+        set.add(listener);
+    }
+
+    public synchronized void removeListener(long userId, UpdateListener listener) {
+        var set = listeners.get(userId);
+        set.remove(listener);
+        if (set.isEmpty()) {
+            listeners.remove(userId);
+
+            userDevices.remove(userId).forEach(deviceId -> deviceUsers.computeIfPresent(deviceId, (x, userIds) -> {
+                userIds.remove(userId);
+                return userIds.isEmpty() ? null : userIds;
+            }));
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/database/ActiveDevice.java b/src/main/java/org/traccar/session/DeviceSession.java
index c05d56ad2..009f90f5a 100644
--- a/src/main/java/org/traccar/database/ActiveDevice.java
+++ b/src/main/java/org/traccar/session/DeviceSession.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.traccar.database;
+package org.traccar.session;
 
 import io.netty.channel.Channel;
 import io.netty.handler.codec.http.HttpRequestDecoder;
@@ -22,37 +22,69 @@ import org.traccar.Protocol;
 import org.traccar.model.Command;
 
 import java.net.SocketAddress;
+import java.util.HashMap;
+import java.util.Map;
 
-public class ActiveDevice {
+public class DeviceSession {
 
     private final long deviceId;
+    private final String uniqueId;
     private final Protocol protocol;
     private final Channel channel;
     private final SocketAddress remoteAddress;
-    private final boolean supportsLiveCommands;
 
-    public ActiveDevice(long deviceId, Protocol protocol, Channel channel, SocketAddress remoteAddress) {
+    public DeviceSession(
+            long deviceId, String uniqueId, Protocol protocol, Channel channel, SocketAddress remoteAddress) {
         this.deviceId = deviceId;
+        this.uniqueId = uniqueId;
         this.protocol = protocol;
         this.channel = channel;
         this.remoteAddress = remoteAddress;
-        supportsLiveCommands = BasePipelineFactory.getHandler(channel.pipeline(), HttpRequestDecoder.class) == null;
+    }
+
+    public long getDeviceId() {
+        return deviceId;
+    }
+
+    public String getUniqueId() {
+        return uniqueId;
     }
 
     public Channel getChannel() {
         return channel;
     }
 
-    public long getDeviceId() {
-        return deviceId;
+    public SocketAddress getRemoteAddress() {
+        return remoteAddress;
     }
 
     public boolean supportsLiveCommands() {
-        return supportsLiveCommands;
+        return BasePipelineFactory.getHandler(channel.pipeline(), HttpRequestDecoder.class) == null;
     }
 
     public void sendCommand(Command command) {
         protocol.sendDataCommand(channel, remoteAddress, command);
     }
 
+    public static final String KEY_TIMEZONE = "timezone";
+
+    private final Map<String, Object> locals = new HashMap<>();
+
+    public boolean contains(String key) {
+        return locals.containsKey(key);
+    }
+
+    public void set(String key, Object value) {
+        if (value != null) {
+            locals.put(key, value);
+        } else {
+            locals.remove(key);
+        }
+    }
+
+    @SuppressWarnings("unchecked")
+    public <T> T get(String key) {
+        return (T) locals.get(key);
+    }
+
 }
diff --git a/src/main/java/org/traccar/session/Endpoint.java b/src/main/java/org/traccar/session/Endpoint.java
new file mode 100644
index 000000000..76aac3444
--- /dev/null
+++ b/src/main/java/org/traccar/session/Endpoint.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.session;
+
+import io.netty.channel.Channel;
+
+import java.net.SocketAddress;
+import java.util.Objects;
+
+public class Endpoint {
+
+    private final Channel channel;
+    private final SocketAddress remoteAddress;
+
+    public Endpoint(Channel channel, SocketAddress remoteAddress) {
+        this.channel = channel;
+        this.remoteAddress = remoteAddress;
+    }
+
+    public Channel getChannel() {
+        return channel;
+    }
+
+    public SocketAddress getRemoteAddress() {
+        return remoteAddress;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        Endpoint endpoint = (Endpoint) o;
+        return channel.equals(endpoint.channel) && remoteAddress.equals(endpoint.remoteAddress);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(channel, remoteAddress);
+    }
+
+}
diff --git a/src/main/java/org/traccar/session/cache/CacheKey.java b/src/main/java/org/traccar/session/cache/CacheKey.java
new file mode 100644
index 000000000..23145e34b
--- /dev/null
+++ b/src/main/java/org/traccar/session/cache/CacheKey.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.session.cache;
+
+import org.traccar.model.BaseModel;
+
+import java.util.Objects;
+
+class CacheKey {
+
+    private final Class<? extends BaseModel> clazz;
+    private final long id;
+
+    CacheKey(BaseModel object) {
+        this(object.getClass(), object.getId());
+    }
+
+    CacheKey(Class<? extends BaseModel> clazz, long id) {
+        this.clazz = clazz;
+        this.id = id;
+    }
+
+    public boolean classIs(Class<? extends BaseModel> clazz) {
+        return clazz.equals(this.clazz);
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        CacheKey cacheKey = (CacheKey) o;
+        return id == cacheKey.id && Objects.equals(clazz, cacheKey.clazz);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(clazz, id);
+    }
+
+}
diff --git a/src/main/java/org/traccar/session/cache/CacheManager.java b/src/main/java/org/traccar/session/cache/CacheManager.java
new file mode 100644
index 000000000..58320cf29
--- /dev/null
+++ b/src/main/java/org/traccar/session/cache/CacheManager.java
@@ -0,0 +1,428 @@
+/*
+ * Copyright 2022 - 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.session.cache;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.broadcast.BroadcastInterface;
+import org.traccar.broadcast.BroadcastService;
+import org.traccar.config.Config;
+import org.traccar.model.Attribute;
+import org.traccar.model.BaseModel;
+import org.traccar.model.Calendar;
+import org.traccar.model.Device;
+import org.traccar.model.Driver;
+import org.traccar.model.Geofence;
+import org.traccar.model.Group;
+import org.traccar.model.GroupedModel;
+import org.traccar.model.Maintenance;
+import org.traccar.model.Notification;
+import org.traccar.model.Position;
+import org.traccar.model.Schedulable;
+import org.traccar.model.Server;
+import org.traccar.model.User;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Request;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedHashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+import java.util.concurrent.locks.ReadWriteLock;
+import java.util.concurrent.locks.ReentrantReadWriteLock;
+import java.util.stream.Collectors;
+
+@Singleton
+public class CacheManager implements BroadcastInterface {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(CacheManager.class);
+    private static final int GROUP_DEPTH_LIMIT = 3;
+    private static final Collection<Class<? extends BaseModel>> CLASSES = Arrays.asList(
+            Attribute.class, Driver.class, Geofence.class, Maintenance.class, Notification.class);
+
+    private final Config config;
+    private final Storage storage;
+    private final BroadcastService broadcastService;
+
+    private final ReadWriteLock lock = new ReentrantReadWriteLock();
+
+    private final Map<CacheKey, CacheValue> deviceCache = new HashMap<>();
+    private final Map<Long, Integer> deviceReferences = new HashMap<>();
+    private final Map<Long, Map<Class<? extends BaseModel>, Set<Long>>> deviceLinks = new HashMap<>();
+    private final Map<Long, Position> devicePositions = new HashMap<>();
+
+    private Server server;
+    private final Map<Long, List<User>> notificationUsers = new HashMap<>();
+
+    @Inject
+    public CacheManager(Config config, Storage storage, BroadcastService broadcastService) throws StorageException {
+        this.config = config;
+        this.storage = storage;
+        this.broadcastService = broadcastService;
+        invalidateServer();
+        invalidateUsers();
+        broadcastService.registerListener(this);
+    }
+
+    public Config getConfig() {
+        return config;
+    }
+
+    public <T extends BaseModel> T getObject(Class<T> clazz, long id) {
+        try {
+            lock.readLock().lock();
+            var cacheValue = deviceCache.get(new CacheKey(clazz, id));
+            return cacheValue != null ? cacheValue.getValue() : null;
+        } finally {
+            lock.readLock().unlock();
+        }
+    }
+
+    public <T extends BaseModel> List<T> getDeviceObjects(long deviceId, Class<T> clazz) {
+        try {
+            lock.readLock().lock();
+            var links = deviceLinks.get(deviceId);
+            if (links != null) {
+                return links.getOrDefault(clazz, new LinkedHashSet<>()).stream()
+                        .map(id -> {
+                            var cacheValue = deviceCache.get(new CacheKey(clazz, id));
+                            return cacheValue != null ? cacheValue.<T>getValue() : null;
+                        })
+                        .filter(Objects::nonNull)
+                        .collect(Collectors.toList());
+            } else {
+                LOGGER.warn("Device {} cache missing", deviceId);
+                return Collections.emptyList();
+            }
+        } finally {
+            lock.readLock().unlock();
+        }
+    }
+
+    public Position getPosition(long deviceId) {
+        try {
+            lock.readLock().lock();
+            return devicePositions.get(deviceId);
+        } finally {
+            lock.readLock().unlock();
+        }
+    }
+
+    public Server getServer() {
+        try {
+            lock.readLock().lock();
+            return server;
+        } finally {
+            lock.readLock().unlock();
+        }
+    }
+
+    public List<User> getNotificationUsers(long notificationId, long deviceId) {
+        try {
+            lock.readLock().lock();
+            var users = deviceLinks.get(deviceId).get(User.class).stream()
+                    .collect(Collectors.toUnmodifiableSet());
+            return notificationUsers.getOrDefault(notificationId, new LinkedList<>()).stream()
+                    .filter(user -> users.contains(user.getId()))
+                    .collect(Collectors.toUnmodifiableList());
+        } finally {
+            lock.readLock().unlock();
+        }
+    }
+
+    public Driver findDriverByUniqueId(long deviceId, String driverUniqueId) {
+        return getDeviceObjects(deviceId, Driver.class).stream()
+                .filter(driver -> driver.getUniqueId().equals(driverUniqueId))
+                .findFirst()
+                .orElse(null);
+    }
+
+    public void addDevice(long deviceId) throws StorageException {
+        try {
+            lock.writeLock().lock();
+            Integer references = deviceReferences.get(deviceId);
+            if (references != null) {
+                references += 1;
+            } else {
+                unsafeAddDevice(deviceId);
+                references = 1;
+            }
+            deviceReferences.put(deviceId, references);
+        } finally {
+            lock.writeLock().unlock();
+        }
+    }
+
+    public void removeDevice(long deviceId) {
+        try {
+            lock.writeLock().lock();
+            Integer references = deviceReferences.get(deviceId);
+            if (references != null) {
+                references -= 1;
+                if (references <= 0) {
+                    unsafeRemoveDevice(deviceId);
+                    deviceReferences.remove(deviceId);
+                } else {
+                    deviceReferences.put(deviceId, references);
+                }
+            }
+        } finally {
+            lock.writeLock().unlock();
+        }
+    }
+
+    public void updatePosition(Position position) {
+        try {
+            lock.writeLock().lock();
+            if (deviceLinks.containsKey(position.getDeviceId())) {
+                devicePositions.put(position.getDeviceId(), position);
+            }
+        } finally {
+            lock.writeLock().unlock();
+        }
+    }
+
+    @Override
+    public void invalidateObject(boolean local, Class<? extends BaseModel> clazz, long id) {
+        try {
+            var object = storage.getObject(clazz, new Request(
+                    new Columns.All(), new Condition.Equals("id", id)));
+            if (object != null) {
+                updateOrInvalidate(local, object);
+            } else {
+                invalidate(clazz, id);
+            }
+        } catch (StorageException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public <T extends BaseModel> void updateOrInvalidate(boolean local, T object) throws StorageException {
+        if (local) {
+            broadcastService.invalidateObject(true, object.getClass(), object.getId());
+        }
+
+        if (object instanceof Server) {
+            invalidateServer();
+            return;
+        }
+        if (object instanceof User) {
+            invalidateUsers();
+            return;
+        }
+
+        boolean invalidate = false;
+        var before = getObject(object.getClass(), object.getId());
+        if (before == null) {
+            return;
+        } else if (object instanceof GroupedModel) {
+            if (((GroupedModel) before).getGroupId() != ((GroupedModel) object).getGroupId()) {
+                invalidate = true;
+            }
+        } else if (object instanceof Schedulable) {
+            if (((Schedulable) before).getCalendarId() != ((Schedulable) object).getCalendarId()) {
+                invalidate = true;
+            }
+        }
+        if (invalidate) {
+            invalidate(object.getClass(), object.getId());
+        } else {
+            try {
+                lock.writeLock().lock();
+                deviceCache.get(new CacheKey(object.getClass(), object.getId())).setValue(object);
+            } finally {
+                lock.writeLock().unlock();
+            }
+        }
+    }
+
+    public <T extends BaseModel> void invalidate(Class<T> clazz, long id) throws StorageException {
+        invalidate(new CacheKey(clazz, id));
+    }
+
+    @Override
+    public void invalidatePermission(
+            boolean local,
+            Class<? extends BaseModel> clazz1, long id1,
+            Class<? extends BaseModel> clazz2, long id2) {
+        if (local) {
+            broadcastService.invalidatePermission(true, clazz1, id1, clazz2, id2);
+        }
+
+        try {
+            invalidate(new CacheKey(clazz1, id1), new CacheKey(clazz2, id2));
+        } catch (StorageException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private void invalidateServer() throws StorageException {
+        server = storage.getObject(Server.class, new Request(new Columns.All()));
+    }
+
+    private void invalidateUsers() throws StorageException {
+        notificationUsers.clear();
+        Map<Long, User> users = new HashMap<>();
+        storage.getObjects(User.class, new Request(new Columns.All()))
+                .forEach(user -> users.put(user.getId(), user));
+        storage.getPermissions(User.class, Notification.class).forEach(permission -> {
+            long notificationId = permission.getPropertyId();
+            var user = users.get(permission.getOwnerId());
+            notificationUsers.computeIfAbsent(notificationId, k -> new LinkedList<>()).add(user);
+        });
+    }
+
+    private void addObject(long deviceId, BaseModel object) {
+        deviceCache.computeIfAbsent(new CacheKey(object), k -> new CacheValue(object)).retain(deviceId);
+    }
+
+    private void unsafeAddDevice(long deviceId) throws StorageException {
+        Map<Class<? extends BaseModel>, Set<Long>> links = new HashMap<>();
+
+        Device device = storage.getObject(Device.class, new Request(
+                new Columns.All(), new Condition.Equals("id", deviceId)));
+        if (device != null) {
+            addObject(deviceId, device);
+            if (device.getCalendarId() > 0) {
+                var calendar = storage.getObject(Calendar.class, new Request(
+                        new Columns.All(), new Condition.Equals("id", device.getCalendarId())));
+                links.computeIfAbsent(Calendar.class, k -> new LinkedHashSet<>()).add(calendar.getId());
+                addObject(deviceId, calendar);
+            }
+
+            int groupDepth = 0;
+            long groupId = device.getGroupId();
+            while (groupDepth < GROUP_DEPTH_LIMIT && groupId > 0) {
+                Group group = storage.getObject(Group.class, new Request(
+                        new Columns.All(), new Condition.Equals("id", groupId)));
+                links.computeIfAbsent(Group.class, k -> new LinkedHashSet<>()).add(group.getId());
+                addObject(deviceId, group);
+                groupId = group.getGroupId();
+                groupDepth += 1;
+            }
+
+            for (Class<? extends BaseModel> clazz : CLASSES) {
+                var objects = storage.getObjects(clazz, new Request(
+                        new Columns.All(), new Condition.Permission(Device.class, deviceId, clazz)));
+                links.put(clazz, objects.stream().map(BaseModel::getId).collect(Collectors.toSet()));
+                for (var object : objects) {
+                    addObject(deviceId, object);
+                    if (object instanceof Schedulable) {
+                        var scheduled = (Schedulable) object;
+                        if (scheduled.getCalendarId() > 0) {
+                            var calendar = storage.getObject(Calendar.class, new Request(
+                                    new Columns.All(), new Condition.Equals("id", scheduled.getCalendarId())));
+                            links.computeIfAbsent(Calendar.class, k -> new LinkedHashSet<>()).add(calendar.getId());
+                            addObject(deviceId, calendar);
+                        }
+                    }
+                }
+            }
+
+            var users = storage.getObjects(User.class, new Request(
+                    new Columns.All(), new Condition.Permission(User.class, Device.class, deviceId)));
+            links.put(User.class, users.stream().map(BaseModel::getId).collect(Collectors.toSet()));
+            for (var user : users) {
+                addObject(deviceId, user);
+                var notifications = storage.getObjects(Notification.class, new Request(
+                        new Columns.All(),
+                        new Condition.Permission(User.class, user.getId(), Notification.class))).stream()
+                        .filter(Notification::getAlways)
+                        .collect(Collectors.toList());
+                for (var notification : notifications) {
+                    links.computeIfAbsent(Notification.class, k -> new LinkedHashSet<>()).add(notification.getId());
+                    addObject(deviceId, notification);
+                    if (notification.getCalendarId() > 0) {
+                        var calendar = storage.getObject(Calendar.class, new Request(
+                                new Columns.All(), new Condition.Equals("id", notification.getCalendarId())));
+                        links.computeIfAbsent(Calendar.class, k -> new LinkedHashSet<>()).add(calendar.getId());
+                        addObject(deviceId, calendar);
+                    }
+                }
+            }
+
+            deviceLinks.put(deviceId, links);
+
+            if (device.getPositionId() > 0) {
+                devicePositions.put(deviceId, storage.getObject(Position.class, new Request(
+                        new Columns.All(), new Condition.Equals("id", device.getPositionId()))));
+            }
+        }
+    }
+
+    private void unsafeRemoveDevice(long deviceId) {
+        deviceCache.remove(new CacheKey(Device.class, deviceId));
+        deviceLinks.remove(deviceId).forEach((clazz, ids) -> ids.forEach(id -> {
+            var key = new CacheKey(clazz, id);
+            deviceCache.computeIfPresent(key, (k, value) -> {
+                value.release(deviceId);
+                return value.getReferences().size() > 0 ? value : null;
+            });
+        }));
+        devicePositions.remove(deviceId);
+    }
+
+    private void invalidate(CacheKey... keys) throws StorageException {
+        try {
+            lock.writeLock().lock();
+            unsafeInvalidate(keys);
+        } finally {
+            lock.writeLock().unlock();
+        }
+    }
+
+    private void unsafeInvalidate(CacheKey[] keys) throws StorageException {
+        boolean invalidateServer = false;
+        boolean invalidateUsers = false;
+        Set<Long> linkedDevices = new HashSet<>();
+        for (var key : keys) {
+            if (key.classIs(Server.class)) {
+                invalidateServer = true;
+            } else {
+                if (key.classIs(User.class) || key.classIs(Notification.class)) {
+                    invalidateUsers = true;
+                }
+                deviceCache.computeIfPresent(key, (k, value) -> {
+                    linkedDevices.addAll(value.getReferences());
+                    return value;
+                });
+            }
+        }
+        for (long deviceId : linkedDevices) {
+            unsafeRemoveDevice(deviceId);
+            unsafeAddDevice(deviceId);
+        }
+        if (invalidateServer) {
+            invalidateServer();
+        }
+        if (invalidateUsers) {
+            invalidateUsers();
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/session/cache/CacheValue.java b/src/main/java/org/traccar/session/cache/CacheValue.java
new file mode 100644
index 000000000..1f0383ce5
--- /dev/null
+++ b/src/main/java/org/traccar/session/cache/CacheValue.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.session.cache;
+
+import org.traccar.model.BaseModel;
+
+import java.util.HashSet;
+import java.util.Set;
+
+class CacheValue {
+
+    private BaseModel value;
+    private final Set<Long> references = new HashSet<>();
+
+    CacheValue(BaseModel value) {
+        this.value = value;
+    }
+
+    public void retain(long deviceId) {
+        references.add(deviceId);
+    }
+
+    public void release(long deviceId) {
+        references.remove(deviceId);
+    }
+
+    @SuppressWarnings("unchecked")
+    public <T extends BaseModel> T getValue() {
+        return (T) value;
+    }
+
+    public void setValue(BaseModel value) {
+        this.value = value;
+    }
+
+    public Set<Long> getReferences() {
+        return references;
+    }
+
+}
diff --git a/src/main/java/org/traccar/session/state/MotionProcessor.java b/src/main/java/org/traccar/session/state/MotionProcessor.java
new file mode 100644
index 000000000..a1737a739
--- /dev/null
+++ b/src/main/java/org/traccar/session/state/MotionProcessor.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.session.state;
+
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+import org.traccar.reports.common.TripsConfig;
+
+public final class MotionProcessor {
+
+    private MotionProcessor() {
+    }
+
+    public static void updateState(
+            MotionState state, Position position, boolean newState, TripsConfig tripsConfig) {
+
+        state.setEvent(null);
+
+        boolean oldState = state.getMotionState();
+        if (oldState == newState) {
+            if (state.getMotionTime() != null) {
+                long oldTime = state.getMotionTime().getTime();
+                long newTime = position.getFixTime().getTime();
+
+                double distance = position.getDouble(Position.KEY_TOTAL_DISTANCE) - state.getMotionDistance();
+                Boolean ignition = null;
+                if (tripsConfig.getUseIgnition() && position.hasAttribute(Position.KEY_IGNITION)) {
+                    ignition = position.getBoolean(Position.KEY_IGNITION);
+                }
+
+                boolean generateEvent = false;
+                if (newState) {
+                    if (newTime - oldTime >= tripsConfig.getMinimalTripDuration()
+                            || distance >= tripsConfig.getMinimalTripDistance()) {
+                        generateEvent = true;
+                    }
+                } else {
+                    if (newTime - oldTime >= tripsConfig.getMinimalParkingDuration()
+                            || ignition != null && !ignition) {
+                        generateEvent = true;
+                    }
+                }
+
+                if (generateEvent) {
+
+                    String eventType = newState ? Event.TYPE_DEVICE_MOVING : Event.TYPE_DEVICE_STOPPED;
+                    Event event = new Event(eventType, position);
+
+                    state.setMotionStreak(newState);
+                    state.setMotionTime(null);
+                    state.setMotionDistance(0);
+                    state.setEvent(event);
+
+                }
+            }
+        } else {
+            state.setMotionState(newState);
+            if (state.getMotionStreak() == newState) {
+                state.setMotionTime(null);
+                state.setMotionDistance(0);
+            } else {
+                state.setMotionTime(position.getFixTime());
+                state.setMotionDistance(position.getDouble(Position.KEY_TOTAL_DISTANCE));
+            }
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/session/state/MotionState.java b/src/main/java/org/traccar/session/state/MotionState.java
new file mode 100644
index 000000000..6c917ad16
--- /dev/null
+++ b/src/main/java/org/traccar/session/state/MotionState.java
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.session.state;
+
+import org.traccar.model.Device;
+import org.traccar.model.Event;
+
+import java.util.Date;
+
+public class MotionState {
+
+    public static MotionState fromDevice(Device device) {
+        MotionState state = new MotionState();
+        state.motionStreak = device.getMotionStreak();
+        state.motionState = device.getMotionState();
+        state.motionTime = device.getMotionTime();
+        state.motionDistance = device.getMotionDistance();
+        return state;
+    }
+
+    public void toDevice(Device device) {
+        device.setMotionStreak(motionStreak);
+        device.setMotionState(motionState);
+        device.setMotionTime(motionTime);
+        device.setMotionDistance(motionDistance);
+    }
+
+    private boolean changed;
+
+    public boolean isChanged() {
+        return changed;
+    }
+
+    private boolean motionStreak;
+
+    public boolean getMotionStreak() {
+        return motionStreak;
+    }
+
+    public void setMotionStreak(boolean motionStreak) {
+        this.motionStreak = motionStreak;
+        changed = true;
+    }
+
+    private boolean motionState;
+
+    public boolean getMotionState() {
+        return motionState;
+    }
+
+    public void setMotionState(boolean motionState) {
+        this.motionState = motionState;
+        changed = true;
+    }
+
+    private Date motionTime;
+
+    public Date getMotionTime() {
+        return motionTime;
+    }
+
+    public void setMotionTime(Date motionTime) {
+        this.motionTime = motionTime;
+        changed = true;
+    }
+
+    private double motionDistance;
+
+    public double getMotionDistance() {
+        return motionDistance;
+    }
+
+    public void setMotionDistance(double motionDistance) {
+        this.motionDistance = motionDistance;
+        changed = true;
+    }
+
+    private Event event;
+
+    public Event getEvent() {
+        return event;
+    }
+
+    public void setEvent(Event event) {
+        this.event = event;
+    }
+
+}
diff --git a/src/main/java/org/traccar/session/state/OverspeedProcessor.java b/src/main/java/org/traccar/session/state/OverspeedProcessor.java
new file mode 100644
index 000000000..221b51ff5
--- /dev/null
+++ b/src/main/java/org/traccar/session/state/OverspeedProcessor.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.session.state;
+
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+
+public final class OverspeedProcessor {
+
+    public static final String ATTRIBUTE_SPEED = "speed";
+
+    private OverspeedProcessor() {
+    }
+
+    public static void updateState(
+            OverspeedState state, Position position,
+            double speedLimit, double multiplier, long minimalDuration, long geofenceId) {
+
+        state.setEvent(null);
+
+        boolean oldState = state.getOverspeedState();
+        if (oldState) {
+            boolean newState = position.getSpeed() > speedLimit * multiplier;
+            if (newState) {
+                checkEvent(state, position, speedLimit, minimalDuration);
+            } else {
+                state.setOverspeedState(false);
+                state.setOverspeedTime(null);
+                state.setOverspeedGeofenceId(0);
+            }
+        } else if (position != null && position.getSpeed() > speedLimit * multiplier) {
+            state.setOverspeedState(true);
+            state.setOverspeedTime(position.getFixTime());
+            state.setOverspeedGeofenceId(geofenceId);
+
+            checkEvent(state, position, speedLimit, minimalDuration);
+        }
+    }
+
+    private static void checkEvent(OverspeedState state, Position position, double speedLimit, long minimalDuration) {
+        if (state.getOverspeedTime() != null) {
+            long oldTime = state.getOverspeedTime().getTime();
+            long newTime = position.getFixTime().getTime();
+            if (newTime - oldTime >= minimalDuration) {
+
+                Event event = new Event(Event.TYPE_DEVICE_OVERSPEED, position);
+                event.set(ATTRIBUTE_SPEED, position.getSpeed());
+                event.set(Position.KEY_SPEED_LIMIT, speedLimit);
+                event.setGeofenceId(state.getOverspeedGeofenceId());
+
+                state.setOverspeedTime(null);
+                state.setOverspeedGeofenceId(0);
+                state.setEvent(event);
+
+            }
+        }
+    }
+}
diff --git a/src/main/java/org/traccar/session/state/OverspeedState.java b/src/main/java/org/traccar/session/state/OverspeedState.java
new file mode 100644
index 000000000..340ede6d7
--- /dev/null
+++ b/src/main/java/org/traccar/session/state/OverspeedState.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.session.state;
+
+import org.traccar.model.Device;
+import org.traccar.model.Event;
+
+import java.util.Date;
+
+public class OverspeedState {
+
+    public static OverspeedState fromDevice(Device device) {
+        OverspeedState state = new OverspeedState();
+        state.overspeedState = device.getOverspeedState();
+        state.overspeedTime = device.getOverspeedTime();
+        state.overspeedGeofenceId = device.getOverspeedGeofenceId();
+        return state;
+    }
+
+    public void toDevice(Device device) {
+        device.setOverspeedState(overspeedState);
+        device.setOverspeedTime(overspeedTime);
+        device.setOverspeedGeofenceId(overspeedGeofenceId);
+    }
+
+    private boolean changed;
+
+    public boolean isChanged() {
+        return changed;
+    }
+
+    private boolean overspeedState;
+
+    public boolean getOverspeedState() {
+        return overspeedState;
+    }
+
+    public void setOverspeedState(boolean overspeedState) {
+        this.overspeedState = overspeedState;
+        changed = true;
+    }
+
+    private Date overspeedTime;
+
+    public Date getOverspeedTime() {
+        return overspeedTime;
+    }
+
+    public void setOverspeedTime(Date overspeedTime) {
+        this.overspeedTime = overspeedTime;
+        changed = true;
+    }
+
+    private long overspeedGeofenceId;
+
+    public long getOverspeedGeofenceId() {
+        return overspeedGeofenceId;
+    }
+
+    public void setOverspeedGeofenceId(long overspeedGeofenceId) {
+        this.overspeedGeofenceId = overspeedGeofenceId;
+        changed = true;
+    }
+
+    private Event event;
+
+    public Event getEvent() {
+        return event;
+    }
+
+    public void setEvent(Event event) {
+        this.event = event;
+    }
+
+}
diff --git a/src/main/java/org/traccar/sms/HttpSmsClient.java b/src/main/java/org/traccar/sms/HttpSmsClient.java
index 6234eabb8..a2a0dd57f 100644
--- a/src/main/java/org/traccar/sms/HttpSmsClient.java
+++ b/src/main/java/org/traccar/sms/HttpSmsClient.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2018 - 2023 Anton Tananaev (anton@traccar.org)
  * Copyright 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,26 +16,23 @@
  */
 package org.traccar.sms;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.traccar.Context;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 import org.traccar.helper.DataConverter;
 import org.traccar.notification.MessageException;
 
-import javax.ws.rs.client.Entity;
-import javax.ws.rs.client.Invocation;
-import javax.ws.rs.client.InvocationCallback;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
+import jakarta.ws.rs.client.Client;
+import jakarta.ws.rs.client.Entity;
+import jakarta.ws.rs.client.Invocation;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
 import java.io.UnsupportedEncodingException;
 import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
 
 public class HttpSmsClient implements SmsManager {
 
-    private static final Logger LOGGER = LoggerFactory.getLogger(HttpSmsClient.class);
-
+    private final Client client;
     private final String url;
     private final String authorizationHeader;
     private final String authorization;
@@ -43,14 +40,15 @@ public class HttpSmsClient implements SmsManager {
     private final boolean encode;
     private final MediaType mediaType;
 
-    public HttpSmsClient() {
-        url = Context.getConfig().getString(Keys.SMS_HTTP_URL);
-        authorizationHeader = Context.getConfig().getString(Keys.SMS_HTTP_AUTHORIZATION_HEADER);
-        if (Context.getConfig().hasKey(Keys.SMS_HTTP_AUTHORIZATION)) {
-            authorization = Context.getConfig().getString(Keys.SMS_HTTP_AUTHORIZATION);
+    public HttpSmsClient(Config config, Client client) {
+        this.client = client;
+        url = config.getString(Keys.SMS_HTTP_URL);
+        authorizationHeader = config.getString(Keys.SMS_HTTP_AUTHORIZATION_HEADER);
+        if (config.hasKey(Keys.SMS_HTTP_AUTHORIZATION)) {
+            authorization = config.getString(Keys.SMS_HTTP_AUTHORIZATION);
         } else {
-            String user = Context.getConfig().getString(Keys.SMS_HTTP_USER);
-            String password = Context.getConfig().getString(Keys.SMS_HTTP_PASSWORD);
+            String user = config.getString(Keys.SMS_HTTP_USER);
+            String password = config.getString(Keys.SMS_HTTP_PASSWORD);
             if (user != null && password != null) {
                 authorization = "Basic "
                         + DataConverter.printBase64((user + ":" + password).getBytes(StandardCharsets.UTF_8));
@@ -58,8 +56,11 @@ public class HttpSmsClient implements SmsManager {
                 authorization = null;
             }
         }
-        template = Context.getConfig().getString(Keys.SMS_HTTP_TEMPLATE).trim();
-        if (template.charAt(0) == '{' || template.charAt(0) == '[') {
+        template = config.getString(Keys.SMS_HTTP_TEMPLATE).trim();
+        if (template.charAt(0) == '<') {
+            encode = false;
+            mediaType = MediaType.APPLICATION_XML_TYPE;
+        } else if (template.charAt(0) == '{' || template.charAt(0) == '[') {
             encode = false;
             mediaType = MediaType.APPLICATION_JSON_TYPE;
         } else {
@@ -69,7 +70,7 @@ public class HttpSmsClient implements SmsManager {
     }
 
     private String prepareValue(String value) throws UnsupportedEncodingException {
-        return encode ? URLEncoder.encode(value, StandardCharsets.UTF_8.name()) : value;
+        return encode ? URLEncoder.encode(value, StandardCharsets.UTF_8) : value;
     }
 
     private String preparePayload(String destAddress, String message) {
@@ -83,7 +84,7 @@ public class HttpSmsClient implements SmsManager {
     }
 
     private Invocation.Builder getRequestBuilder() {
-        Invocation.Builder builder = Context.getClient().target(url).request();
+        Invocation.Builder builder = client.target(url).request();
         if (authorization != null) {
             builder = builder.header(authorizationHeader, authorization);
         }
@@ -91,26 +92,13 @@ public class HttpSmsClient implements SmsManager {
     }
 
     @Override
-    public void sendMessageSync(String destAddress, String message, boolean command) throws MessageException {
-        Response response = getRequestBuilder().post(Entity.entity(preparePayload(destAddress, message), mediaType));
-        if (response.getStatus() / 100 != 2) {
-            throw new MessageException(response.readEntity(String.class));
-        }
-    }
-
-    @Override
-    public void sendMessageAsync(final String destAddress, final String message, final boolean command) {
-        getRequestBuilder().async().post(
-                Entity.entity(preparePayload(destAddress, message), mediaType), new InvocationCallback<String>() {
-            @Override
-            public void completed(String s) {
-            }
-
-            @Override
-            public void failed(Throwable throwable) {
-                LOGGER.warn("SMS send failed", throwable);
+    public void sendMessage(String destAddress, String message, boolean command) throws MessageException {
+        try (Response response = getRequestBuilder()
+                .post(Entity.entity(preparePayload(destAddress, message), mediaType))) {
+            if (response.getStatus() / 100 != 2) {
+                throw new MessageException(response.readEntity(String.class));
             }
-        });
+        }
     }
 
 }
diff --git a/src/main/java/org/traccar/sms/SmsManager.java b/src/main/java/org/traccar/sms/SmsManager.java
index 3b0cbda7f..8cf99c9e8 100644
--- a/src/main/java/org/traccar/sms/SmsManager.java
+++ b/src/main/java/org/traccar/sms/SmsManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2018 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2018 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -20,10 +20,6 @@ import org.traccar.notification.MessageException;
 
 public interface SmsManager {
 
-    void sendMessageSync(
-            String destAddress, String message, boolean command) throws InterruptedException, MessageException;
-
-    void sendMessageAsync(
-            String destAddress, String message, boolean command);
+    void sendMessage(String destAddress, String message, boolean command) throws MessageException;
 
 }
diff --git a/src/main/java/org/traccar/sms/SnsSmsClient.java b/src/main/java/org/traccar/sms/SnsSmsClient.java
index bdd4104f5..ed5a325cc 100644
--- a/src/main/java/org/traccar/sms/SnsSmsClient.java
+++ b/src/main/java/org/traccar/sms/SnsSmsClient.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 Anton Tananaev (anton@traccar.org)
+ * Copyright 2021 - 2022 Anton Tananaev (anton@traccar.org)
  * Copyright 2021 Subodh Ranadive (subodhranadive3103@gmail.com)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -27,7 +27,7 @@ import com.amazonaws.services.sns.model.PublishRequest;
 import com.amazonaws.services.sns.model.PublishResult;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.traccar.Context;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 
 import java.util.HashMap;
@@ -38,23 +38,16 @@ public class SnsSmsClient implements SmsManager {
 
     private final AmazonSNSAsync snsClient;
 
-    public SnsSmsClient() {
-        if (Context.getConfig().hasKey(Keys.SMS_AWS_REGION)
-                && Context.getConfig().hasKey(Keys.SMS_AWS_ACCESS)
-                && Context.getConfig().hasKey(Keys.SMS_AWS_SECRET)) {
-            BasicAWSCredentials awsCredentials =
-                    new BasicAWSCredentials(Context.getConfig().getString(Keys.SMS_AWS_ACCESS),
-                    Context.getConfig().getString(Keys.SMS_AWS_SECRET));
-            snsClient = AmazonSNSAsyncClientBuilder.standard()
-                    .withRegion(Context.getConfig().getString(Keys.SMS_AWS_REGION))
-                    .withCredentials(new AWSStaticCredentialsProvider(awsCredentials)).build();
-        } else {
-            throw new RuntimeException("SNS Not Configured Properly. Please provide valid config.");
-        }
+    public SnsSmsClient(Config config) {
+        BasicAWSCredentials awsCredentials = new BasicAWSCredentials(
+                config.getString(Keys.SMS_AWS_ACCESS), config.getString(Keys.SMS_AWS_SECRET));
+        snsClient = AmazonSNSAsyncClientBuilder.standard()
+                .withRegion(config.getString(Keys.SMS_AWS_REGION))
+                .withCredentials(new AWSStaticCredentialsProvider(awsCredentials)).build();
     }
 
     @Override
-    public void sendMessageSync(String destAddress, String message, boolean command) {
+    public void sendMessage(String destAddress, String message, boolean command) {
         Map<String, MessageAttributeValue> smsAttributes = new HashMap<>();
         smsAttributes.put("AWS.SNS.SMS.SenderID",
                 new MessageAttributeValue().withStringValue("SNS").withDataType("String"));
@@ -64,19 +57,15 @@ public class SnsSmsClient implements SmsManager {
         PublishRequest publishRequest = new PublishRequest().withMessage(message)
                 .withPhoneNumber(destAddress).withMessageAttributes(smsAttributes);
 
-        snsClient.publishAsync(publishRequest, new AsyncHandler<PublishRequest, PublishResult>() {
+        snsClient.publishAsync(publishRequest, new AsyncHandler<>() {
             @Override
             public void onError(Exception exception) {
                 LOGGER.error("SMS send failed", exception);
             }
+
             @Override
             public void onSuccess(PublishRequest request, PublishResult result) {
             }
         });
     }
-
-    @Override
-    public void sendMessageAsync(String destAddress, String message, boolean command) {
-        sendMessageSync(destAddress, message, command);
-    }
 }
diff --git a/src/main/java/org/traccar/speedlimit/OverpassSpeedLimitProvider.java b/src/main/java/org/traccar/speedlimit/OverpassSpeedLimitProvider.java
index 429a47c76..60ad65f9e 100644
--- a/src/main/java/org/traccar/speedlimit/OverpassSpeedLimitProvider.java
+++ b/src/main/java/org/traccar/speedlimit/OverpassSpeedLimitProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2020 - 2022 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,19 +15,21 @@
  */
 package org.traccar.speedlimit;
 
-import org.traccar.Context;
 import org.traccar.helper.UnitsConverter;
 
-import javax.json.JsonArray;
-import javax.json.JsonObject;
-import javax.ws.rs.client.AsyncInvoker;
-import javax.ws.rs.client.InvocationCallback;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
+import jakarta.ws.rs.client.AsyncInvoker;
+import jakarta.ws.rs.client.Client;
+import jakarta.ws.rs.client.InvocationCallback;
 
 public class OverpassSpeedLimitProvider implements SpeedLimitProvider {
 
+    private final Client client;
     private final String url;
 
-    public OverpassSpeedLimitProvider(String url) {
+    public OverpassSpeedLimitProvider(Client client, String url) {
+        this.client = client;
         this.url = url + "?data=[out:json];way[maxspeed](around:100.0,%f,%f);out%%20tags;";
     }
 
@@ -46,7 +48,7 @@ public class OverpassSpeedLimitProvider implements SpeedLimitProvider {
     @Override
     public void getSpeedLimit(double latitude, double longitude, SpeedLimitProviderCallback callback) {
         String formattedUrl = String.format(url, latitude, longitude);
-        AsyncInvoker invoker = Context.getClient().target(formattedUrl).request().async();
+        AsyncInvoker invoker = client.target(formattedUrl).request().async();
         invoker.get(new InvocationCallback<JsonObject>() {
             @Override
             public void completed(JsonObject json) {
diff --git a/src/main/java/org/traccar/storage/DatabaseModule.java b/src/main/java/org/traccar/storage/DatabaseModule.java
new file mode 100644
index 000000000..9d9e5bd5e
--- /dev/null
+++ b/src/main/java/org/traccar/storage/DatabaseModule.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.storage;
+
+import com.google.inject.AbstractModule;
+import com.google.inject.Provides;
+import com.zaxxer.hikari.HikariConfig;
+import com.zaxxer.hikari.HikariDataSource;
+import liquibase.Contexts;
+import liquibase.Liquibase;
+import liquibase.database.Database;
+import liquibase.database.DatabaseFactory;
+import liquibase.exception.LiquibaseException;
+import liquibase.resource.DirectoryResourceAccessor;
+import liquibase.resource.ResourceAccessor;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+
+import jakarta.inject.Singleton;
+import javax.sql.DataSource;
+import java.io.File;
+import java.io.IOException;
+import java.lang.reflect.Method;
+import java.net.URL;
+
+public class DatabaseModule extends AbstractModule {
+
+    @Singleton
+    @Provides
+    public static DataSource provideDataSource(
+            Config config) throws ReflectiveOperationException, IOException, LiquibaseException {
+
+        String driverFile = config.getString(Keys.DATABASE_DRIVER_FILE);
+        if (driverFile != null) {
+            ClassLoader classLoader = ClassLoader.getSystemClassLoader();
+            try {
+                Method method = classLoader.getClass().getDeclaredMethod("addURL", URL.class);
+                method.setAccessible(true);
+                method.invoke(classLoader, new File(driverFile).toURI().toURL());
+            } catch (NoSuchMethodException e) {
+                Method method = classLoader.getClass()
+                        .getDeclaredMethod("appendToClassPathForInstrumentation", String.class);
+                method.setAccessible(true);
+                method.invoke(classLoader, driverFile);
+            }
+        }
+
+        String driver = config.getString(Keys.DATABASE_DRIVER);
+        if (driver != null) {
+            Class.forName(driver);
+        }
+
+        HikariConfig hikariConfig = new HikariConfig();
+        hikariConfig.setDriverClassName(driver);
+        hikariConfig.setJdbcUrl(config.getString(Keys.DATABASE_URL));
+        hikariConfig.setUsername(config.getString(Keys.DATABASE_USER));
+        hikariConfig.setPassword(config.getString(Keys.DATABASE_PASSWORD));
+        hikariConfig.setConnectionInitSql(config.getString(Keys.DATABASE_CHECK_CONNECTION));
+        hikariConfig.setIdleTimeout(600000);
+
+        int maxPoolSize = config.getInteger(Keys.DATABASE_MAX_POOL_SIZE);
+        if (maxPoolSize != 0) {
+            hikariConfig.setMaximumPoolSize(maxPoolSize);
+        }
+
+        DataSource dataSource = new HikariDataSource(hikariConfig);
+
+        if (config.hasKey(Keys.DATABASE_CHANGELOG)) {
+
+            ResourceAccessor resourceAccessor = new DirectoryResourceAccessor(new File("."));
+
+            Database database = DatabaseFactory.getInstance().openDatabase(
+                    config.getString(Keys.DATABASE_URL),
+                    config.getString(Keys.DATABASE_USER),
+                    config.getString(Keys.DATABASE_PASSWORD),
+                    config.getString(Keys.DATABASE_DRIVER),
+                    null, null, null, resourceAccessor);
+
+            String changelog = config.getString(Keys.DATABASE_CHANGELOG);
+
+            try (Liquibase liquibase = new Liquibase(changelog, resourceAccessor, database)) {
+                liquibase.clearCheckSums();
+                liquibase.update(new Contexts());
+            }
+        }
+
+        return dataSource;
+    }
+
+}
diff --git a/src/main/java/org/traccar/storage/DatabaseStorage.java b/src/main/java/org/traccar/storage/DatabaseStorage.java
index d73dc7b25..d20429319 100644
--- a/src/main/java/org/traccar/storage/DatabaseStorage.java
+++ b/src/main/java/org/traccar/storage/DatabaseStorage.java
@@ -1,15 +1,37 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.traccar.storage;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.traccar.config.Config;
+import org.traccar.model.BaseModel;
+import org.traccar.model.Device;
+import org.traccar.model.Group;
+import org.traccar.model.GroupedModel;
 import org.traccar.model.Permission;
 import org.traccar.storage.query.Columns;
 import org.traccar.storage.query.Condition;
-import org.traccar.storage.query.Limit;
 import org.traccar.storage.query.Order;
 import org.traccar.storage.query.Request;
 
+import jakarta.inject.Inject;
 import javax.sql.DataSource;
 import java.sql.SQLException;
 import java.util.HashMap;
+import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 import java.util.function.Function;
@@ -17,22 +39,37 @@ import java.util.stream.Collectors;
 
 public class DatabaseStorage extends Storage {
 
+    private final Config config;
     private final DataSource dataSource;
+    private final ObjectMapper objectMapper;
+    private final String databaseType;
 
-    public DatabaseStorage(DataSource dataSource) {
+    @Inject
+    public DatabaseStorage(Config config, DataSource dataSource, ObjectMapper objectMapper) {
+        this.config = config;
         this.dataSource = dataSource;
+        this.objectMapper = objectMapper;
+
+        try {
+            databaseType = dataSource.getConnection().getMetaData().getDatabaseProductName();
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
     }
 
     @Override
     public <T> List<T> getObjects(Class<T> clazz, Request request) throws StorageException {
         StringBuilder query = new StringBuilder("SELECT ");
-        query.append(formatColumns(request.getColumns(), clazz, "get", c -> c));
-        query.append(" FROM ").append(getTableName(clazz));
+        if (request.getColumns() instanceof Columns.All) {
+            query.append('*');
+        } else {
+            query.append(formatColumns(request.getColumns().getColumns(clazz, "set"), c -> c));
+        }
+        query.append(" FROM ").append(getStorageName(clazz));
         query.append(formatCondition(request.getCondition()));
         query.append(formatOrder(request.getOrder()));
-        query.append(formatLimit(request.getLimit()));
         try {
-            QueryBuilder builder = QueryBuilder.create(dataSource, query.toString());
+            QueryBuilder builder = QueryBuilder.create(config, dataSource, objectMapper, query.toString());
             for (Map.Entry<String, Object> variable : getConditionVariables(request.getCondition()).entrySet()) {
                 builder.setValue(variable.getKey(), variable.getValue());
             }
@@ -44,16 +81,17 @@ public class DatabaseStorage extends Storage {
 
     @Override
     public <T> long addObject(T entity, Request request) throws StorageException {
+        List<String> columns = request.getColumns().getColumns(entity.getClass(), "get");
         StringBuilder query = new StringBuilder("INSERT INTO ");
-        query.append(getTableName(entity.getClass()));
+        query.append(getStorageName(entity.getClass()));
         query.append("(");
-        query.append(formatColumns(request.getColumns(), entity.getClass(), "set", c -> c));
+        query.append(formatColumns(columns, c -> c));
         query.append(") VALUES (");
-        query.append(formatColumns(request.getColumns(), entity.getClass(), "set", c -> ':' + c));
+        query.append(formatColumns(columns, c -> ':' + c));
         query.append(")");
         try {
-            QueryBuilder builder = QueryBuilder.create(dataSource, query.toString(), true);
-            builder.setObject(entity);
+            QueryBuilder builder = QueryBuilder.create(config, dataSource, objectMapper, query.toString(), true);
+            builder.setObject(entity, columns);
             return builder.executeUpdate();
         } catch (SQLException e) {
             throw new StorageException(e);
@@ -62,14 +100,15 @@ public class DatabaseStorage extends Storage {
 
     @Override
     public <T> void updateObject(T entity, Request request) throws StorageException {
+        List<String> columns = request.getColumns().getColumns(entity.getClass(), "get");
         StringBuilder query = new StringBuilder("UPDATE ");
-        query.append(getTableName(entity.getClass()));
+        query.append(getStorageName(entity.getClass()));
         query.append(" SET ");
-        query.append(formatColumns(request.getColumns(), entity.getClass(), "set", c -> c + " = :" + c));
+        query.append(formatColumns(columns, c -> c + " = :" + c));
         query.append(formatCondition(request.getCondition()));
         try {
-            QueryBuilder builder = QueryBuilder.create(dataSource, query.toString());
-            builder.setObject(entity);
+            QueryBuilder builder = QueryBuilder.create(config, dataSource, objectMapper, query.toString());
+            builder.setObject(entity, columns);
             for (Map.Entry<String, Object> variable : getConditionVariables(request.getCondition()).entrySet()) {
                 builder.setValue(variable.getKey(), variable.getValue());
             }
@@ -82,10 +121,10 @@ public class DatabaseStorage extends Storage {
     @Override
     public void removeObject(Class<?> clazz, Request request) throws StorageException {
         StringBuilder query = new StringBuilder("DELETE FROM ");
-        query.append(getTableName(clazz));
+        query.append(getStorageName(clazz));
         query.append(formatCondition(request.getCondition()));
         try {
-            QueryBuilder builder = QueryBuilder.create(dataSource, query.toString());
+            QueryBuilder builder = QueryBuilder.create(config, dataSource, objectMapper, query.toString());
             for (Map.Entry<String, Object> variable : getConditionVariables(request.getCondition()).entrySet()) {
                 builder.setValue(variable.getKey(), variable.getValue());
             }
@@ -96,11 +135,25 @@ public class DatabaseStorage extends Storage {
     }
 
     @Override
-    public List<Permission> getPermissions(Class<?> ownerClass, Class<?> propertyClass) throws StorageException {
+    public List<Permission> getPermissions(
+            Class<? extends BaseModel> ownerClass, long ownerId,
+            Class<? extends BaseModel> propertyClass, long propertyId) throws StorageException {
         StringBuilder query = new StringBuilder("SELECT * FROM ");
         query.append(Permission.getStorageName(ownerClass, propertyClass));
+        var conditions = new LinkedList<Condition>();
+        if (ownerId > 0) {
+            conditions.add(new Condition.Equals(Permission.getKey(ownerClass), ownerId));
+        }
+        if (propertyId > 0) {
+            conditions.add(new Condition.Equals(Permission.getKey(propertyClass), propertyId));
+        }
+        Condition combinedCondition = Condition.merge(conditions);
+        query.append(formatCondition(combinedCondition));
         try {
-            QueryBuilder builder = QueryBuilder.create(dataSource, query.toString());
+            QueryBuilder builder = QueryBuilder.create(config, dataSource, objectMapper, query.toString());
+            for (Map.Entry<String, Object> variable : getConditionVariables(combinedCondition).entrySet()) {
+                builder.setValue(variable.getKey(), variable.getValue());
+            }
             return builder.executePermissionsQuery();
         } catch (SQLException e) {
             throw new StorageException(e);
@@ -115,7 +168,7 @@ public class DatabaseStorage extends Storage {
         query.append(permission.get().keySet().stream().map(key -> ':' + key).collect(Collectors.joining(", ")));
         query.append(")");
         try {
-            QueryBuilder builder = QueryBuilder.create(dataSource, query.toString(), true);
+            QueryBuilder builder = QueryBuilder.create(config, dataSource, objectMapper, query.toString(), true);
             for (var entry : permission.get().entrySet()) {
                 builder.setLong(entry.getKey(), entry.getValue());
             }
@@ -133,7 +186,7 @@ public class DatabaseStorage extends Storage {
         query.append(permission
                 .get().keySet().stream().map(key -> key + " = :" + key).collect(Collectors.joining(" AND ")));
         try {
-            QueryBuilder builder = QueryBuilder.create(dataSource, query.toString(), true);
+            QueryBuilder builder = QueryBuilder.create(config, dataSource, objectMapper, query.toString(), true);
             for (var entry : permission.get().entrySet()) {
                 builder.setLong(entry.getKey(), entry.getValue());
             }
@@ -143,7 +196,7 @@ public class DatabaseStorage extends Storage {
         }
     }
 
-    private String getTableName(Class<?> clazz) throws StorageException {
+    private String getStorageName(Class<?> clazz) throws StorageException {
         StorageName storageName = clazz.getAnnotation(StorageName.class);
         if (storageName == null) {
             throw new StorageException("StorageName annotation is missing");
@@ -154,32 +207,43 @@ public class DatabaseStorage extends Storage {
     private Map<String, Object> getConditionVariables(Condition genericCondition) {
         Map<String, Object> results = new HashMap<>();
         if (genericCondition instanceof Condition.Compare) {
-            Condition.Compare condition = (Condition.Compare) genericCondition;
+            var condition = (Condition.Compare) genericCondition;
             if (condition.getValue() != null) {
                 results.put(condition.getVariable(), condition.getValue());
             }
         } else if (genericCondition instanceof Condition.Between) {
-            Condition.Between condition = (Condition.Between) genericCondition;
+            var condition = (Condition.Between) genericCondition;
             results.put(condition.getFromVariable(), condition.getFromValue());
             results.put(condition.getToVariable(), condition.getToValue());
         } else if (genericCondition instanceof Condition.Binary) {
-            Condition.Binary condition = (Condition.Binary) genericCondition;
+            var condition = (Condition.Binary) genericCondition;
             results.putAll(getConditionVariables(condition.getFirst()));
             results.putAll(getConditionVariables(condition.getSecond()));
+        } else if (genericCondition instanceof Condition.Permission) {
+            var condition = (Condition.Permission) genericCondition;
+            if (condition.getOwnerId() > 0) {
+                results.put(Permission.getKey(condition.getOwnerClass()), condition.getOwnerId());
+            } else {
+                results.put(Permission.getKey(condition.getPropertyClass()), condition.getPropertyId());
+            }
+        } else if (genericCondition instanceof Condition.LatestPositions) {
+            var condition = (Condition.LatestPositions) genericCondition;
+            if (condition.getDeviceId() > 0) {
+                results.put("deviceId", condition.getDeviceId());
+            }
         }
         return results;
     }
 
-    private String formatColumns(
-            Columns columns, Class<?> clazz, String type, Function<String, String> mapper) {
-        return columns.getColumns(clazz, type).stream().map(mapper).collect(Collectors.joining(", "));
+    private String formatColumns(List<String> columns, Function<String, String> mapper) {
+        return columns.stream().map(mapper).collect(Collectors.joining(", "));
     }
 
-    private String formatCondition(Condition genericCondition) {
+    private String formatCondition(Condition genericCondition) throws StorageException {
         return formatCondition(genericCondition, true);
     }
 
-    private String formatCondition(Condition genericCondition, boolean appendWhere) {
+    private String formatCondition(Condition genericCondition, boolean appendWhere) throws StorageException {
         StringBuilder result = new StringBuilder();
         if (genericCondition != null) {
             if (appendWhere) {
@@ -187,7 +251,7 @@ public class DatabaseStorage extends Storage {
             }
             if (genericCondition instanceof Condition.Compare) {
 
-                Condition.Compare condition = (Condition.Compare) genericCondition;
+                var condition = (Condition.Compare) genericCondition;
                 result.append(condition.getColumn());
                 result.append(" ");
                 result.append(condition.getOperator());
@@ -196,7 +260,7 @@ public class DatabaseStorage extends Storage {
 
             } else if (genericCondition instanceof Condition.Between) {
 
-                Condition.Between condition = (Condition.Between) genericCondition;
+                var condition = (Condition.Between) genericCondition;
                 result.append(condition.getColumn());
                 result.append(" BETWEEN :");
                 result.append(condition.getFromVariable());
@@ -205,13 +269,31 @@ public class DatabaseStorage extends Storage {
 
             } else if (genericCondition instanceof Condition.Binary) {
 
-                Condition.Binary condition = (Condition.Binary) genericCondition;
+                var condition = (Condition.Binary) genericCondition;
                 result.append(formatCondition(condition.getFirst(), false));
                 result.append(" ");
                 result.append(condition.getOperator());
                 result.append(" ");
                 result.append(formatCondition(condition.getSecond(), false));
 
+            } else if (genericCondition instanceof Condition.Permission) {
+
+                var condition = (Condition.Permission) genericCondition;
+                result.append("id IN (");
+                result.append(formatPermissionQuery(condition));
+                result.append(")");
+
+            } else if (genericCondition instanceof Condition.LatestPositions) {
+
+                var condition = (Condition.LatestPositions) genericCondition;
+                result.append("id IN (");
+                result.append("SELECT positionId FROM ");
+                result.append(getStorageName(Device.class));
+                if (condition.getDeviceId() > 0) {
+                    result.append(" WHERE id = :deviceId");
+                }
+                result.append(")");
+
             }
         }
         return result.toString();
@@ -225,16 +307,103 @@ public class DatabaseStorage extends Storage {
             if (order.getDescending()) {
                 result.append(" DESC");
             }
+            if (order.getLimit() > 0) {
+                if (databaseType.equals("Microsoft SQL Server")) {
+                    result.append(" OFFSET 0 ROWS FETCH FIRST ");
+                    result.append(order.getLimit());
+                    result.append(" ROWS ONLY");
+                } else {
+                    result.append(" LIMIT ");
+                    result.append(order.getLimit());
+                }
+            }
         }
         return result.toString();
     }
 
-    private String formatLimit(Limit limit) {
+    private String formatPermissionQuery(Condition.Permission condition) throws StorageException {
         StringBuilder result = new StringBuilder();
-        if (limit != null) {
-            result.append(" LIMIT ");
-            result.append(limit.getValue());
+
+        String outputKey;
+        String conditionKey;
+        if (condition.getOwnerId() > 0) {
+            outputKey = Permission.getKey(condition.getPropertyClass());
+            conditionKey = Permission.getKey(condition.getOwnerClass());
+        } else {
+            outputKey = Permission.getKey(condition.getOwnerClass());
+            conditionKey = Permission.getKey(condition.getPropertyClass());
         }
+
+        String storageName = Permission.getStorageName(condition.getOwnerClass(), condition.getPropertyClass());
+        result.append("SELECT ");
+        result.append(storageName).append('.').append(outputKey);
+        result.append(" FROM ");
+        result.append(storageName);
+        result.append(" WHERE ");
+        result.append(conditionKey);
+        result.append(" = :");
+        result.append(conditionKey);
+
+        if (condition.getIncludeGroups()) {
+
+            boolean expandDevices;
+            String groupStorageName;
+            if (GroupedModel.class.isAssignableFrom(condition.getOwnerClass())) {
+                expandDevices = Device.class.isAssignableFrom(condition.getOwnerClass());
+                groupStorageName = Permission.getStorageName(Group.class, condition.getPropertyClass());
+            } else {
+                expandDevices = Device.class.isAssignableFrom(condition.getPropertyClass());
+                groupStorageName = Permission.getStorageName(condition.getOwnerClass(), Group.class);
+            }
+
+            result.append(" UNION ");
+
+            result.append("SELECT DISTINCT ");
+            if (!expandDevices) {
+                if (outputKey.equals("groupId")) {
+                    result.append("all_groups.");
+                } else {
+                    result.append(groupStorageName).append('.');
+                }
+            }
+            result.append(outputKey);
+            result.append(" FROM ");
+            result.append(groupStorageName);
+
+            result.append(" INNER JOIN (");
+            result.append("SELECT id as parentId, id as groupId FROM ");
+            result.append(getStorageName(Group.class));
+            result.append(" UNION ");
+            result.append("SELECT groupId as parentId, id as groupId FROM ");
+            result.append(getStorageName(Group.class));
+            result.append(" WHERE groupId IS NOT NULL");
+            result.append(" UNION ");
+            result.append("SELECT g2.groupId as parentId, g1.id as groupId FROM ");
+            result.append(getStorageName(Group.class));
+            result.append(" AS g2");
+            result.append(" INNER JOIN ");
+            result.append(getStorageName(Group.class));
+            result.append(" AS g1 ON g2.id = g1.groupId");
+            result.append(" WHERE g2.groupId IS NOT NULL");
+            result.append(") AS all_groups ON ");
+            result.append(groupStorageName);
+            result.append(".groupId = all_groups.parentId");
+
+            if (expandDevices) {
+                result.append(" INNER JOIN (");
+                result.append("SELECT groupId as parentId, id as deviceId FROM ");
+                result.append(getStorageName(Device.class));
+                result.append(" WHERE groupId IS NOT NULL");
+                result.append(") AS devices ON all_groups.groupId = devices.parentId");
+            }
+
+            result.append(" WHERE ");
+            result.append(conditionKey);
+            result.append(" = :");
+            result.append(conditionKey);
+
+        }
+
         return result.toString();
     }
 
diff --git a/src/main/java/org/traccar/storage/MemoryStorage.java b/src/main/java/org/traccar/storage/MemoryStorage.java
index 9cfe30a2b..9b5db1209 100644
--- a/src/main/java/org/traccar/storage/MemoryStorage.java
+++ b/src/main/java/org/traccar/storage/MemoryStorage.java
@@ -1,36 +1,172 @@
+/*
+ * Copyright 2022 - 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.traccar.storage;
 
+import org.traccar.model.BaseModel;
 import org.traccar.model.Pair;
 import org.traccar.model.Permission;
+import org.traccar.model.Server;
+import org.traccar.storage.query.Condition;
 import org.traccar.storage.query.Request;
 
+import java.beans.Introspector;
+import java.lang.reflect.Method;
+import java.util.Collection;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.concurrent.atomic.AtomicLong;
 import java.util.stream.Collectors;
 
 public class MemoryStorage extends Storage {
 
+    private final Map<Class<?>, Map<Long, Object>> objects = new HashMap<>();
     private final Map<Pair<Class<?>, Class<?>>, Set<Pair<Long, Long>>> permissions = new HashMap<>();
 
+    private final AtomicLong increment = new AtomicLong();
+
+    public MemoryStorage() {
+        Server server = new Server();
+        server.setId(1);
+        server.setRegistration(true);
+        objects.put(Server.class, Map.of(server.getId(), server));
+    }
+
     @Override
     public <T> List<T> getObjects(Class<T> clazz, Request request) {
-        return null;
+        return objects.computeIfAbsent(clazz, key -> new HashMap<>()).values().stream()
+                .filter(object -> checkCondition(request.getCondition(), object))
+                .map(object -> (T) object)
+                .collect(Collectors.toList());
+    }
+
+    private boolean checkCondition(Condition genericCondition, Object object) {
+        if (genericCondition == null) {
+            return true;
+        }
+
+        if (genericCondition instanceof Condition.Compare) {
+
+            var condition = (Condition.Compare) genericCondition;
+            Object value = retrieveValue(object, condition.getVariable());
+            int result = ((Comparable) value).compareTo(condition.getValue());
+            switch (condition.getOperator()) {
+                case "<":
+                    return result < 0;
+                case "<=":
+                    return result <= 0;
+                case ">":
+                    return result > 0;
+                case ">=":
+                    return result >= 0;
+                case "=":
+                    return result == 0;
+                default:
+                    throw new RuntimeException("Unsupported comparison condition");
+            }
+
+        } else if (genericCondition instanceof Condition.Between) {
+
+            var condition = (Condition.Between) genericCondition;
+            Object fromValue = retrieveValue(object, condition.getFromVariable());
+            int fromResult = ((Comparable) fromValue).compareTo(condition.getFromValue());
+            Object toValue = retrieveValue(object, condition.getToVariable());
+            int toResult = ((Comparable) toValue).compareTo(condition.getToValue());
+            return fromResult >= 0 && toResult <= 0;
+
+        } else if (genericCondition instanceof Condition.Binary) {
+
+            var condition = (Condition.Binary) genericCondition;
+            if (condition.getOperator().equals("AND")) {
+                return checkCondition(condition.getFirst(), object) && checkCondition(condition.getSecond(), object);
+            } else if (condition.getOperator().equals("OR")) {
+                return checkCondition(condition.getFirst(), object) || checkCondition(condition.getSecond(), object);
+            }
+
+        } else if (genericCondition instanceof Condition.Permission) {
+
+            var condition = (Condition.Permission) genericCondition;
+            long id = (Long) retrieveValue(object, "id");
+            return getPermissionsSet(condition.getOwnerClass(), condition.getPropertyClass()).stream()
+                    .anyMatch(pair -> {
+                        if (condition.getOwnerId() > 0) {
+                            return pair.getFirst() == condition.getOwnerId() && pair.getSecond() == id;
+                        } else {
+                            return pair.getFirst() == id && pair.getSecond() == condition.getPropertyId();
+                        }
+                    });
+
+        } else if (genericCondition instanceof Condition.LatestPositions) {
+
+            return false;
+
+        }
+
+        return false;
+    }
+
+    private Object retrieveValue(Object object, String key) {
+        try {
+            Method method = object.getClass().getMethod(
+                    "get" + Character.toUpperCase(key.charAt(0)) + key.substring(1));
+            return method.invoke(object);
+        } catch (ReflectiveOperationException e) {
+            throw new RuntimeException(e);
+        }
     }
 
     @Override
     public <T> long addObject(T entity, Request request) {
-        return 0;
+        long id = increment.incrementAndGet();
+        objects.computeIfAbsent(entity.getClass(), key -> new HashMap<>()).put(id, entity);
+        return id;
     }
 
     @Override
     public <T> void updateObject(T entity, Request request) {
+        Set<String> columns = new HashSet<>(request.getColumns().getColumns(entity.getClass(), "get"));
+        Collection<Object> items;
+        if (request.getCondition() != null) {
+            long id = (Long) ((Condition.Equals) request.getCondition()).getValue();
+            items = List.of(objects.computeIfAbsent(entity.getClass(), key -> new HashMap<>()).get(id));
+        } else {
+            items = objects.computeIfAbsent(entity.getClass(), key -> new HashMap<>()).values();
+        }
+        for (Method setter : entity.getClass().getMethods()) {
+            if (setter.getName().startsWith("set") && setter.getParameterCount() == 1
+                    && columns.contains(Introspector.decapitalize(setter.getName()))) {
+                try {
+                    Method getter = entity.getClass().getMethod(setter.getName().replaceFirst("set", "get"));
+                    Object value = getter.invoke(entity);
+                    for (Object object : items) {
+                        setter.invoke(object, value);
+                    }
+                } catch (ReflectiveOperationException e) {
+                    throw new RuntimeException(e);
+                }
+            }
+        }
     }
 
     @Override
     public void removeObject(Class<?> clazz, Request request) {
+        long id = (Long) ((Condition.Equals) request.getCondition()).getValue();
+        objects.computeIfAbsent(clazz, key -> new HashMap<>()).remove(id);
     }
 
     private Set<Pair<Long, Long>> getPermissionsSet(Class<?> ownerClass, Class<?> propertyClass) {
@@ -38,8 +174,12 @@ public class MemoryStorage extends Storage {
     }
 
     @Override
-    public List<Permission> getPermissions(Class<?> ownerClass, Class<?> propertyClass) {
+    public List<Permission> getPermissions(
+            Class<? extends BaseModel> ownerClass, long ownerId,
+            Class<? extends BaseModel> propertyClass, long propertyId) {
         return getPermissionsSet(ownerClass, propertyClass).stream()
+                .filter(pair -> ownerId == 0 || pair.getFirst().equals(ownerId))
+                .filter(pair -> propertyId == 0 || pair.getSecond().equals(propertyId))
                 .map(pair -> new Permission(ownerClass, pair.getFirst(), propertyClass, pair.getSecond()))
                 .collect(Collectors.toList());
     }
diff --git a/src/main/java/org/traccar/storage/QueryBuilder.java b/src/main/java/org/traccar/storage/QueryBuilder.java
index da8002f0b..2f4c07406 100644
--- a/src/main/java/org/traccar/storage/QueryBuilder.java
+++ b/src/main/java/org/traccar/storage/QueryBuilder.java
@@ -16,9 +16,11 @@
 package org.traccar.storage;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.traccar.Context;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
 import org.traccar.model.Permission;
 
 import javax.sql.DataSource;
@@ -40,17 +42,25 @@ import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 
+@SuppressWarnings("UnusedReturnValue")
 public final class QueryBuilder {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(QueryBuilder.class);
 
+    private final Config config;
+    private final ObjectMapper objectMapper;
+
     private final Map<String, List<Integer>> indexMap = new HashMap<>();
     private Connection connection;
     private PreparedStatement statement;
     private final String query;
     private final boolean returnGeneratedKeys;
 
-    private QueryBuilder(DataSource dataSource, String query, boolean returnGeneratedKeys) throws SQLException {
+    private QueryBuilder(
+            Config config, DataSource dataSource, ObjectMapper objectMapper,
+            String query, boolean returnGeneratedKeys) throws SQLException {
+        this.config = config;
+        this.objectMapper = objectMapper;
         this.query = query;
         this.returnGeneratedKeys = returnGeneratedKeys;
         if (query != null) {
@@ -125,13 +135,15 @@ public final class QueryBuilder {
         return parsedQuery.toString();
     }
 
-    public static QueryBuilder create(DataSource dataSource, String query) throws SQLException {
-        return new QueryBuilder(dataSource, query, false);
+    public static QueryBuilder create(
+            Config config, DataSource dataSource, ObjectMapper objectMapper, String query) throws SQLException {
+        return new QueryBuilder(config, dataSource, objectMapper, query, false);
     }
 
     public static QueryBuilder create(
-            DataSource dataSource, String query, boolean returnGeneratedKeys) throws SQLException {
-        return new QueryBuilder(dataSource, query, returnGeneratedKeys);
+            Config config, DataSource dataSource, ObjectMapper objectMapper, String query,
+            boolean returnGeneratedKeys) throws SQLException {
+        return new QueryBuilder(config, dataSource, objectMapper, query, returnGeneratedKeys);
     }
 
     private List<Integer> indexes(String name) {
@@ -271,35 +283,32 @@ public final class QueryBuilder {
         return this;
     }
 
-    public QueryBuilder setObject(Object object) throws SQLException {
-
-        Method[] methods = object.getClass().getMethods();
-
-        for (Method method : methods) {
-            if (method.getName().startsWith("get") && method.getParameterTypes().length == 0) {
-                String name = method.getName().substring(3);
-                try {
-                    if (method.getReturnType().equals(boolean.class)) {
-                        setBoolean(name, (Boolean) method.invoke(object));
-                    } else if (method.getReturnType().equals(int.class)) {
-                        setInteger(name, (Integer) method.invoke(object));
-                    } else if (method.getReturnType().equals(long.class)) {
-                        setLong(name, (Long) method.invoke(object), name.endsWith("Id"));
-                    } else if (method.getReturnType().equals(double.class)) {
-                        setDouble(name, (Double) method.invoke(object));
-                    } else if (method.getReturnType().equals(String.class)) {
-                        setString(name, (String) method.invoke(object));
-                    } else if (method.getReturnType().equals(Date.class)) {
-                        setDate(name, (Date) method.invoke(object));
-                    } else if (method.getReturnType().equals(byte[].class)) {
-                        setBlob(name, (byte[]) method.invoke(object));
-                    } else {
-                        setString(name, Context.getObjectMapper().writeValueAsString(method.invoke(object)));
-                    }
-                } catch (IllegalAccessException | InvocationTargetException | JsonProcessingException error) {
-                    LOGGER.warn("Get property error", error);
+    public QueryBuilder setObject(Object object, List<String> columns) throws SQLException {
+
+        try {
+            for (String column : columns) {
+                Method method = object.getClass().getMethod(
+                        "get" + Character.toUpperCase(column.charAt(0)) + column.substring(1));
+                if (method.getReturnType().equals(boolean.class)) {
+                    setBoolean(column, (Boolean) method.invoke(object));
+                } else if (method.getReturnType().equals(int.class)) {
+                    setInteger(column, (Integer) method.invoke(object));
+                } else if (method.getReturnType().equals(long.class)) {
+                    setLong(column, (Long) method.invoke(object), column.endsWith("Id"));
+                } else if (method.getReturnType().equals(double.class)) {
+                    setDouble(column, (Double) method.invoke(object));
+                } else if (method.getReturnType().equals(String.class)) {
+                    setString(column, (String) method.invoke(object));
+                } else if (method.getReturnType().equals(Date.class)) {
+                    setDate(column, (Date) method.invoke(object));
+                } else if (method.getReturnType().equals(byte[].class)) {
+                    setBlob(column, (byte[]) method.invoke(object));
+                } else {
+                    setString(column, objectMapper.writeValueAsString(method.invoke(object)));
                 }
             }
+        } catch (ReflectiveOperationException | JsonProcessingException e) {
+            LOGGER.warn("Set object error", e);
         }
 
         return this;
@@ -309,15 +318,6 @@ public final class QueryBuilder {
         void process(T object, ResultSet resultSet) throws SQLException;
     }
 
-    public <T> T executeQuerySingle(Class<T> clazz) throws SQLException {
-        List<T> result = executeQuery(clazz);
-        if (!result.isEmpty()) {
-            return result.iterator().next();
-        } else {
-            return null;
-        }
-    }
-
     private <T> void addProcessors(
             List<ResultSetProcessor<T>> processors,
             final Class<?> parameterType, final Method method, final String name) {
@@ -386,7 +386,7 @@ public final class QueryBuilder {
                 String value = resultSet.getString(name);
                 if (value != null && !value.isEmpty()) {
                     try {
-                        method.invoke(object, Context.getObjectMapper().readValue(value, parameterType));
+                        method.invoke(object, objectMapper.readValue(value, parameterType));
                     } catch (InvocationTargetException | IllegalAccessException | IOException error) {
                         LOGGER.warn("Set property error", error);
                     }
@@ -395,6 +395,12 @@ public final class QueryBuilder {
         }
     }
 
+    private void logQuery() {
+        if (config.getBoolean(Keys.LOGGER_QUERIES)) {
+            LOGGER.info(query);
+        }
+    }
+
     public <T> List<T> executeQuery(Class<T> clazz) throws SQLException {
         List<T> result = new LinkedList<>();
 
@@ -402,6 +408,8 @@ public final class QueryBuilder {
 
             try {
 
+                logQuery();
+
                 try (ResultSet resultSet = statement.executeQuery()) {
 
                     ResultSetMetaData resultMetaData = resultSet.getMetaData();
@@ -457,6 +465,7 @@ public final class QueryBuilder {
 
         if (query != null) {
             try {
+                logQuery();
                 statement.execute();
                 if (returnGeneratedKeys) {
                     ResultSet resultSet = statement.getGeneratedKeys();
@@ -476,6 +485,7 @@ public final class QueryBuilder {
         List<Permission> result = new LinkedList<>();
         if (query != null) {
             try {
+                logQuery();
                 try (ResultSet resultSet = statement.executeQuery()) {
                     ResultSetMetaData resultMetaData = resultSet.getMetaData();
                     while (resultSet.next()) {
diff --git a/src/main/java/org/traccar/storage/QueryExtended.java b/src/main/java/org/traccar/storage/QueryExtended.java
deleted file mode 100644
index 3796f1f40..000000000
--- a/src/main/java/org/traccar/storage/QueryExtended.java
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright 2017 Anton Tananaev (anton@traccar.org)
- * Copyright 2017 Andrey Kunitsyn (andrey@traccar.org)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.storage;
-
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
-
-@Target(ElementType.METHOD)
-@Retention(RetentionPolicy.RUNTIME)
-public @interface QueryExtended {
-}
diff --git a/src/main/java/org/traccar/storage/Storage.java b/src/main/java/org/traccar/storage/Storage.java
index 22c48cae0..55f5c22c0 100644
--- a/src/main/java/org/traccar/storage/Storage.java
+++ b/src/main/java/org/traccar/storage/Storage.java
@@ -1,5 +1,21 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.traccar.storage;
 
+import org.traccar.model.BaseModel;
 import org.traccar.model.Permission;
 import org.traccar.storage.query.Request;
 
@@ -16,12 +32,19 @@ public abstract class Storage {
     public abstract void removeObject(Class<?> clazz, Request request) throws StorageException;
 
     public abstract List<Permission> getPermissions(
-            Class<?> ownerClass, Class<?> propertyClass) throws StorageException;
+            Class<? extends BaseModel> ownerClass, long ownerId,
+            Class<? extends BaseModel> propertyClass, long propertyId) throws StorageException;
 
     public abstract void addPermission(Permission permission) throws StorageException;
 
     public abstract void removePermission(Permission permission) throws StorageException;
 
+    public List<Permission> getPermissions(
+            Class<? extends BaseModel> ownerClass,
+            Class<? extends BaseModel> propertyClass) throws StorageException {
+        return getPermissions(ownerClass, 0, propertyClass, 0);
+    }
+
     public <T> T getObject(Class<T> clazz, Request request) throws StorageException {
         var objects = getObjects(clazz, request);
         return objects.isEmpty() ? null : objects.get(0);
diff --git a/src/main/java/org/traccar/storage/StorageException.java b/src/main/java/org/traccar/storage/StorageException.java
index 6c1e9c2ff..3f066cae6 100644
--- a/src/main/java/org/traccar/storage/StorageException.java
+++ b/src/main/java/org/traccar/storage/StorageException.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.traccar.storage;
 
 public class StorageException extends Exception {
diff --git a/src/main/java/org/traccar/storage/StorageName.java b/src/main/java/org/traccar/storage/StorageName.java
index b6fa55e02..bf824c333 100644
--- a/src/main/java/org/traccar/storage/StorageName.java
+++ b/src/main/java/org/traccar/storage/StorageName.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.traccar.storage;
 
 import java.lang.annotation.ElementType;
diff --git a/src/main/java/org/traccar/storage/query/Columns.java b/src/main/java/org/traccar/storage/query/Columns.java
index 196d2281c..a00400b36 100644
--- a/src/main/java/org/traccar/storage/query/Columns.java
+++ b/src/main/java/org/traccar/storage/query/Columns.java
@@ -1,8 +1,23 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.traccar.storage.query;
 
-import org.traccar.storage.QueryExtended;
 import org.traccar.storage.QueryIgnore;
 
+import java.beans.Introspector;
 import java.lang.reflect.Method;
 import java.util.Arrays;
 import java.util.LinkedList;
@@ -21,9 +36,8 @@ public abstract class Columns {
             int parameterCount = type.equals("set") ? 1 : 0;
             if (method.getName().startsWith(type) && method.getParameterTypes().length == parameterCount
                     && !method.isAnnotationPresent(QueryIgnore.class)
-                    && !method.isAnnotationPresent(QueryExtended.class)
                     && !method.getName().equals("getClass")) {
-                columns.add(method.getName().substring(3).toLowerCase());
+                columns.add(Introspector.decapitalize(method.getName().substring(3)));
             }
         }
         return columns;
diff --git a/src/main/java/org/traccar/storage/query/Condition.java b/src/main/java/org/traccar/storage/query/Condition.java
index 82c8e8479..08b199052 100644
--- a/src/main/java/org/traccar/storage/query/Condition.java
+++ b/src/main/java/org/traccar/storage/query/Condition.java
@@ -1,14 +1,41 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.traccar.storage.query;
 
+import org.traccar.model.GroupedModel;
+
+import java.util.List;
+
 public interface Condition {
 
-    class Equals extends Compare {
-        public Equals(String column, String variable) {
-            this(column, variable, null);
+    static Condition merge(List<Condition> conditions) {
+        Condition result = null;
+        var iterator = conditions.iterator();
+        if (iterator.hasNext()) {
+            result = iterator.next();
+            while (iterator.hasNext()) {
+                result = new Condition.And(result, iterator.next());
+            }
         }
+        return result;
+    }
 
-        public Equals(String column, String variable, Object value) {
-            super(column, "=", variable, value);
+    class Equals extends Compare {
+        public Equals(String column, Object value) {
+            super(column, "=", column, value);
         }
     }
 
@@ -114,4 +141,71 @@ public interface Condition {
         }
     }
 
+    class Permission implements Condition {
+        private final Class<?> ownerClass;
+        private final long ownerId;
+        private final Class<?> propertyClass;
+        private final long propertyId;
+        private final boolean excludeGroups;
+
+        private Permission(
+                Class<?> ownerClass, long ownerId, Class<?> propertyClass, long propertyId, boolean excludeGroups) {
+            this.ownerClass = ownerClass;
+            this.ownerId = ownerId;
+            this.propertyClass = propertyClass;
+            this.propertyId = propertyId;
+            this.excludeGroups = excludeGroups;
+        }
+
+        public Permission(Class<?> ownerClass, long ownerId, Class<?> propertyClass) {
+            this(ownerClass, ownerId, propertyClass, 0, false);
+        }
+
+        public Permission(Class<?> ownerClass, Class<?> propertyClass, long propertyId) {
+            this(ownerClass, 0, propertyClass, propertyId, false);
+        }
+
+        public Permission excludeGroups() {
+            return new Permission(this.ownerClass, this.ownerId, this.propertyClass, this.propertyId, true);
+        }
+
+        public Class<?> getOwnerClass() {
+            return ownerClass;
+        }
+
+        public long getOwnerId() {
+            return ownerId;
+        }
+
+        public Class<?> getPropertyClass() {
+            return propertyClass;
+        }
+
+        public long getPropertyId() {
+            return propertyId;
+        }
+
+        public boolean getIncludeGroups() {
+            boolean ownerGroupModel = GroupedModel.class.isAssignableFrom(ownerClass);
+            boolean propertyGroupModel = GroupedModel.class.isAssignableFrom(propertyClass);
+            return (ownerGroupModel || propertyGroupModel) && !excludeGroups;
+        }
+    }
+
+    class LatestPositions implements Condition {
+        private final long deviceId;
+
+        public LatestPositions(long deviceId) {
+            this.deviceId = deviceId;
+        }
+
+        public LatestPositions() {
+            this(0);
+        }
+
+        public long getDeviceId() {
+            return deviceId;
+        }
+    }
+
 }
diff --git a/src/main/java/org/traccar/storage/query/Limit.java b/src/main/java/org/traccar/storage/query/Limit.java
index 4a20f0ce2..9673e5426 100644
--- a/src/main/java/org/traccar/storage/query/Limit.java
+++ b/src/main/java/org/traccar/storage/query/Limit.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.traccar.storage.query;
 
 public class Limit {
diff --git a/src/main/java/org/traccar/storage/query/Order.java b/src/main/java/org/traccar/storage/query/Order.java
index 6852c5ba8..f10970381 100644
--- a/src/main/java/org/traccar/storage/query/Order.java
+++ b/src/main/java/org/traccar/storage/query/Order.java
@@ -1,17 +1,34 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.traccar.storage.query;
 
 public class Order {
 
     private final String column;
     private final boolean descending;
+    private final int limit;
 
     public Order(String column) {
-        this(false, column);
+        this(column, false, 0);
     }
 
-    public Order(boolean descending, String column) {
+    public Order(String column, boolean descending, int limit) {
         this.column = column;
         this.descending = descending;
+        this.limit = limit;
     }
 
     public String getColumn() {
@@ -22,4 +39,8 @@ public class Order {
         return descending;
     }
 
+    public int getLimit() {
+        return limit;
+    }
+
 }
diff --git a/src/main/java/org/traccar/storage/query/Request.java b/src/main/java/org/traccar/storage/query/Request.java
index a98dd48f7..b9c2c963c 100644
--- a/src/main/java/org/traccar/storage/query/Request.java
+++ b/src/main/java/org/traccar/storage/query/Request.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.traccar.storage.query;
 
 public class Request {
@@ -5,7 +20,6 @@ public class Request {
     private final Columns columns;
     private final Condition condition;
     private final Order order;
-    private final Limit limit;
 
     public Request(Columns columns) {
         this(columns, null, null);
@@ -19,15 +33,14 @@ public class Request {
         this(columns, condition, null);
     }
 
-    public Request(Columns columns, Condition condition, Order order) {
-        this(columns, condition, order, null);
+    public Request(Columns columns, Order order) {
+        this(columns, null, order);
     }
 
-    public Request(Columns columns, Condition condition, Order order, Limit limit) {
+    public Request(Columns columns, Condition condition, Order order) {
         this.columns = columns;
         this.condition = condition;
         this.order = order;
-        this.limit = limit;
     }
 
     public Columns getColumns() {
@@ -42,8 +55,4 @@ public class Request {
         return order;
     }
 
-    public Limit getLimit() {
-        return limit;
-    }
-
 }
diff --git a/src/main/java/org/traccar/web/ConsoleServlet.java b/src/main/java/org/traccar/web/ConsoleServlet.java
index 0f3dcd8fd..0012ba077 100644
--- a/src/main/java/org/traccar/web/ConsoleServlet.java
+++ b/src/main/java/org/traccar/web/ConsoleServlet.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,33 +16,39 @@
 package org.traccar.web;
 
 import org.h2.server.web.ConnectionInfo;
-import org.h2.server.web.WebServlet;
+import org.h2.server.web.JakartaWebServlet;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.traccar.Context;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
 
 import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 
-public class ConsoleServlet extends WebServlet {
+public class ConsoleServlet extends JakartaWebServlet {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(ConsoleServlet.class);
 
+    private final Config config;
+
+    public ConsoleServlet(Config config) {
+        this.config = config;
+    }
+
     @Override
     public void init() {
         super.init();
 
         try {
-            Field field = WebServlet.class.getDeclaredField("server");
+            Field field = JakartaWebServlet.class.getDeclaredField("server");
             field.setAccessible(true);
             org.h2.server.web.WebServer server = (org.h2.server.web.WebServer) field.get(this);
 
             ConnectionInfo connectionInfo = new ConnectionInfo("Traccar|"
-                    + Context.getConfig().getString(Keys.DATABASE_DRIVER) + "|"
-                    + Context.getConfig().getString(Keys.DATABASE_URL) + "|"
-                    + Context.getConfig().getString(Keys.DATABASE_USER));
+                    + config.getString(Keys.DATABASE_DRIVER) + "|"
+                    + config.getString(Keys.DATABASE_URL) + "|"
+                    + config.getString(Keys.DATABASE_USER));
 
             Method method;
 
diff --git a/src/main/java/org/traccar/web/ModernDefaultServlet.java b/src/main/java/org/traccar/web/ModernDefaultServlet.java
new file mode 100644
index 000000000..a7c8cdb29
--- /dev/null
+++ b/src/main/java/org/traccar/web/ModernDefaultServlet.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.web;
+
+import org.eclipse.jetty.servlet.DefaultServlet;
+import org.eclipse.jetty.util.resource.Resource;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+
+import jakarta.inject.Inject;
+import java.io.File;
+import java.io.IOException;
+
+public class ModernDefaultServlet extends DefaultServlet {
+
+    private Resource overrideResource;
+
+    @Inject
+    public ModernDefaultServlet(Config config) {
+        String override = config.getString(Keys.WEB_OVERRIDE);
+        if (override != null) {
+            overrideResource = Resource.newResource(new File(override));
+        }
+    }
+
+    @Override
+    public Resource getResource(String pathInContext) {
+        if (overrideResource != null) {
+            try {
+                Resource override = overrideResource.addPath(pathInContext);
+                if (override.exists()) {
+                    return override;
+                }
+            } catch (IOException e) {
+                throw new RuntimeException(e);
+            }
+        }
+        return super.getResource(pathInContext.indexOf('.') < 0 ? "/" : pathInContext);
+    }
+
+    @Override
+    public String getWelcomeFile(String pathInContext) {
+        return super.getWelcomeFile("/");
+    }
+
+}
diff --git a/src/main/java/org/traccar/web/OverrideFilter.java b/src/main/java/org/traccar/web/OverrideFilter.java
new file mode 100644
index 000000000..f870c4147
--- /dev/null
+++ b/src/main/java/org/traccar/web/OverrideFilter.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.web;
+
+import com.google.inject.Provider;
+import org.traccar.api.security.PermissionsService;
+import org.traccar.model.Server;
+import org.traccar.storage.StorageException;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import jakarta.servlet.Filter;
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.ServletRequest;
+import jakarta.servlet.ServletResponse;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+@Singleton
+public class OverrideFilter implements Filter {
+
+    private final Provider<PermissionsService> permissionsServiceProvider;
+
+    @Inject
+    public OverrideFilter(Provider<PermissionsService> permissionsServiceProvider) {
+        this.permissionsServiceProvider = permissionsServiceProvider;
+    }
+
+    @Override
+    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
+            throws IOException, ServletException {
+
+        if (((HttpServletRequest) request).getServletPath().startsWith("/api")) {
+            chain.doFilter(request, response);
+            return;
+        }
+
+        ResponseWrapper wrappedResponse = new ResponseWrapper((HttpServletResponse) response);
+
+        chain.doFilter(request, wrappedResponse);
+
+        byte[] bytes = wrappedResponse.getCapture();
+        if (bytes != null) {
+            if (wrappedResponse.getContentType() != null && wrappedResponse.getContentType().contains("text/html")
+                    || ((HttpServletRequest) request).getPathInfo().endsWith("manifest.json")) {
+
+                Server server;
+                try {
+                    server = permissionsServiceProvider.get().getServer();
+                } catch (StorageException e) {
+                    throw new RuntimeException(e);
+                }
+
+                String title = server.getString("title", "Traccar");
+                String description = server.getString("description", "Traccar GPS Tracking System");
+                String colorPrimary = server.getString("colorPrimary", "#1a237e");
+
+                String alteredContent = new String(wrappedResponse.getCapture())
+                        .replace("${title}", title)
+                        .replace("${description}", description)
+                        .replace("${colorPrimary}", colorPrimary);
+
+                response.setContentLength(alteredContent.length());
+                response.getOutputStream().write(alteredContent.getBytes());
+
+            } else {
+                response.getOutputStream().write(bytes);
+            }
+        }
+    }
+
+}
diff --git a/src/main/java/org/traccar/web/ResponseWrapper.java b/src/main/java/org/traccar/web/ResponseWrapper.java
new file mode 100644
index 000000000..a0eaf6788
--- /dev/null
+++ b/src/main/java/org/traccar/web/ResponseWrapper.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.web;
+
+import jakarta.servlet.ServletOutputStream;
+import jakarta.servlet.WriteListener;
+import jakarta.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpServletResponseWrapper;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+public class ResponseWrapper extends HttpServletResponseWrapper {
+
+    private final ByteArrayOutputStream capture;
+    private ServletOutputStream output;
+
+    public ResponseWrapper(HttpServletResponse response) {
+        super(response);
+        capture = new ByteArrayOutputStream(response.getBufferSize());
+    }
+
+    @Override
+    public ServletOutputStream getOutputStream() {
+        if (output == null) {
+            output = new ServletOutputStream() {
+                @Override
+                public boolean isReady() {
+                    return true;
+                }
+
+                @Override
+                public void setWriteListener(WriteListener writeListener) {
+                }
+
+                @Override
+                public void write(int b) {
+                    capture.write(b);
+                }
+
+                @Override
+                public void flush() throws IOException {
+                    capture.flush();
+                }
+
+                @Override
+                public void close() throws IOException {
+                    capture.close();
+                }
+            };
+        }
+        return output;
+    }
+
+    @Override
+    public void flushBuffer() throws IOException {
+        super.flushBuffer();
+        if (output != null) {
+            output.flush();
+        }
+    }
+
+    public byte[] getCapture() throws IOException {
+        if (output != null) {
+            output.close();
+            return capture.toByteArray();
+        }
+        return null;
+    }
+
+}
diff --git a/src/main/java/org/traccar/web/ThrottlingFilter.java b/src/main/java/org/traccar/web/ThrottlingFilter.java
new file mode 100644
index 000000000..1bad33db6
--- /dev/null
+++ b/src/main/java/org/traccar/web/ThrottlingFilter.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2022 - 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.web;
+
+import org.eclipse.jetty.servlets.DoSFilter;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+import jakarta.servlet.FilterConfig;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.ServletRequest;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpSession;
+
+@Singleton
+public class ThrottlingFilter extends DoSFilter {
+
+    @Inject
+    private Config config;
+
+    @Override
+    public void init(FilterConfig filterConfig) throws ServletException {
+        super.init(filterConfig);
+        if (config.hasKey(Keys.WEB_MAX_REQUESTS_PER_SECOND)) {
+            setMaxRequestsPerSec(config.getInteger(Keys.WEB_MAX_REQUESTS_PER_SECOND));
+        }
+        setMaxRequestMs(config.getInteger(Keys.WEB_MAX_REQUEST_SECONDS) * 1000L);
+    }
+
+    @Override
+    protected String extractUserId(ServletRequest request) {
+        HttpSession session = ((HttpServletRequest) request).getSession(false);
+        if (session != null) {
+            var userId = session.getAttribute("userId");
+            return userId != null ? userId.toString() : null;
+        }
+        return null;
+    }
+}
diff --git a/src/main/java/org/traccar/web/WebInjectionManagerFactory.java b/src/main/java/org/traccar/web/WebInjectionManagerFactory.java
new file mode 100644
index 000000000..3e73c41ad
--- /dev/null
+++ b/src/main/java/org/traccar/web/WebInjectionManagerFactory.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.web;
+
+import org.glassfish.hk2.api.ServiceLocator;
+import org.glassfish.jersey.inject.hk2.Hk2InjectionManagerFactory;
+import org.glassfish.jersey.internal.inject.InjectionManager;
+import org.glassfish.jersey.internal.inject.InjectionManagerFactory;
+import org.jvnet.hk2.guice.bridge.api.GuiceBridge;
+import org.jvnet.hk2.guice.bridge.api.GuiceIntoHK2Bridge;
+import org.traccar.Main;
+
+import jakarta.annotation.Priority;
+
+@Priority(20)
+public class WebInjectionManagerFactory implements InjectionManagerFactory {
+
+    private final InjectionManagerFactory originalFactory = new Hk2InjectionManagerFactory();
+
+    private InjectionManager injectGuiceBridge(InjectionManager injectionManager) {
+        var serviceLocator = injectionManager.getInstance(ServiceLocator.class);
+        GuiceBridge.getGuiceBridge().initializeGuiceBridge(serviceLocator);
+        var guiceBridge = serviceLocator.getService(GuiceIntoHK2Bridge.class);
+        guiceBridge.bridgeGuiceInjector(Main.getInjector());
+        return injectionManager;
+    }
+
+    @Override
+    public InjectionManager create() {
+        return injectGuiceBridge(originalFactory.create());
+    }
+
+    @Override
+    public InjectionManager create(Object parent) {
+        return injectGuiceBridge(originalFactory.create(parent));
+    }
+}
diff --git a/src/main/java/org/traccar/web/WebModule.java b/src/main/java/org/traccar/web/WebModule.java
new file mode 100644
index 000000000..a32a6f447
--- /dev/null
+++ b/src/main/java/org/traccar/web/WebModule.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2022 - 2023 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.web;
+
+import com.google.inject.servlet.ServletModule;
+import org.traccar.api.AsyncSocketServlet;
+import org.traccar.api.MediaFilter;
+
+public class WebModule extends ServletModule {
+
+    @Override
+    protected void configureServlets() {
+        filter("/*").through(OverrideFilter.class);
+        filter("/api/*").through(ThrottlingFilter.class);
+        filter("/api/media/*").through(MediaFilter.class);
+        serve("/api/socket").with(AsyncSocketServlet.class);
+    }
+}
diff --git a/src/main/java/org/traccar/web/WebServer.java b/src/main/java/org/traccar/web/WebServer.java
index 0ed5d013e..5f27f7662 100644
--- a/src/main/java/org/traccar/web/WebServer.java
+++ b/src/main/java/org/traccar/web/WebServer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2023 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,6 +15,8 @@
  */
 package org.traccar.web;
 
+import com.google.inject.Injector;
+import com.google.inject.servlet.GuiceFilter;
 import org.eclipse.jetty.http.HttpCookie;
 import org.eclipse.jetty.http.HttpMethod;
 import org.eclipse.jetty.http.HttpStatus;
@@ -35,35 +37,27 @@ import org.eclipse.jetty.servlet.DefaultServlet;
 import org.eclipse.jetty.servlet.ServletContextHandler;
 import org.eclipse.jetty.servlet.ServletHolder;
 import org.eclipse.jetty.websocket.server.config.JettyWebSocketServletContainerInitializer;
-import org.glassfish.jersey.inject.hk2.ImmediateHk2InjectionManager;
 import org.glassfish.jersey.jackson.JacksonFeature;
 import org.glassfish.jersey.server.ResourceConfig;
-import org.glassfish.jersey.server.spi.Container;
-import org.glassfish.jersey.server.spi.ContainerLifecycleListener;
 import org.glassfish.jersey.servlet.ServletContainer;
-import org.jvnet.hk2.guice.bridge.api.GuiceBridge;
-import org.jvnet.hk2.guice.bridge.api.GuiceIntoHK2Bridge;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.traccar.Context;
 import org.traccar.LifecycleObject;
-import org.traccar.Main;
-import org.traccar.api.DateParameterConverterProvider;
-import org.traccar.config.Config;
-import org.traccar.api.AsyncSocketServlet;
 import org.traccar.api.CorsResponseFilter;
-import org.traccar.api.MediaFilter;
-import org.traccar.api.ObjectMapperProvider;
+import org.traccar.api.DateParameterConverterProvider;
 import org.traccar.api.ResourceErrorHandler;
-import org.traccar.api.security.SecurityRequestFilter;
 import org.traccar.api.resource.ServerResource;
+import org.traccar.api.security.SecurityRequestFilter;
+import org.traccar.config.Config;
 import org.traccar.config.Keys;
-
-import javax.servlet.DispatcherType;
-import javax.servlet.ServletException;
-import javax.servlet.SessionCookieConfig;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
+import org.traccar.helper.ObjectMapperContextResolver;
+
+import jakarta.servlet.DispatcherType;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.SessionCookieConfig;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import javax.sql.DataSource;
 import java.io.File;
 import java.io.IOException;
 import java.io.Writer;
@@ -74,10 +68,13 @@ public class WebServer implements LifecycleObject {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(WebServer.class);
 
-    private Server server;
-
-    private void initServer(Config config) {
+    private final Injector injector;
+    private final Config config;
+    private final Server server;
 
+    public WebServer(Injector injector, Config config) {
+        this.injector = injector;
+        this.config = config;
         String address = config.getString(Keys.WEB_ADDRESS);
         int port = config.getInteger(Keys.WEB_PORT);
         if (address == null) {
@@ -85,22 +82,19 @@ public class WebServer implements LifecycleObject {
         } else {
             server = new Server(new InetSocketAddress(address, port));
         }
-    }
-
-    public WebServer(Config config) {
-
-        initServer(config);
 
         ServletContextHandler servletHandler = new ServletContextHandler(ServletContextHandler.SESSIONS);
+        JettyWebSocketServletContainerInitializer.configure(servletHandler, null);
+        servletHandler.addFilter(GuiceFilter.class, "/*", EnumSet.allOf(DispatcherType.class));
 
-        initApi(config, servletHandler);
-        initSessionConfig(config, servletHandler);
+        initApi(servletHandler);
+        initSessionConfig(servletHandler);
 
         if (config.getBoolean(Keys.WEB_CONSOLE)) {
-            servletHandler.addServlet(new ServletHolder(new ConsoleServlet()), "/console/*");
+            servletHandler.addServlet(new ServletHolder(new ConsoleServlet(config)), "/console/*");
         }
 
-        initWebApp(config, servletHandler);
+        initWebApp(servletHandler);
 
         servletHandler.setErrorHandler(new ErrorHandler() {
             @Override
@@ -112,12 +106,12 @@ public class WebServer implements LifecycleObject {
         });
 
         HandlerList handlers = new HandlerList();
-        initClientProxy(config, handlers);
+        initClientProxy(handlers);
         handlers.addHandler(servletHandler);
         handlers.addHandler(new GzipHandler());
         server.setHandler(handlers);
 
-        if (config.getBoolean(Keys.WEB_REQUEST_LOG_ENABLE)) {
+        if (config.hasKey(Keys.WEB_REQUEST_LOG_PATH)) {
             RequestLogWriter logWriter = new RequestLogWriter(config.getString(Keys.WEB_REQUEST_LOG_PATH));
             logWriter.setAppend(true);
             logWriter.setRetainDays(config.getInteger(Keys.WEB_REQUEST_LOG_RETAIN_DAYS));
@@ -126,7 +120,7 @@ public class WebServer implements LifecycleObject {
         }
     }
 
-    private void initClientProxy(Config config, HandlerList handlers) {
+    private void initClientProxy(HandlerList handlers) {
         int port = config.getInteger(Keys.PROTOCOL_PORT.withPrefix("osmand"));
         if (port != 0) {
             ServletContextHandler servletHandler = new ServletContextHandler() {
@@ -139,15 +133,15 @@ public class WebServer implements LifecycleObject {
                     }
                 }
             };
-            ServletHolder servletHolder = new ServletHolder(new AsyncProxyServlet.Transparent());
+            ServletHolder servletHolder = new ServletHolder(AsyncProxyServlet.Transparent.class);
             servletHolder.setInitParameter("proxyTo", "http://localhost:" + port);
             servletHandler.addServlet(servletHolder, "/");
             handlers.addHandler(servletHandler);
         }
     }
 
-    private void initWebApp(Config config, ServletContextHandler servletHandler) {
-        ServletHolder servletHolder = new ServletHolder(DefaultServlet.class);
+    private void initWebApp(ServletContextHandler servletHandler) {
+        ServletHolder servletHolder = new ServletHolder(new ModernDefaultServlet(config));
         servletHolder.setInitParameter("resourceBase", new File(config.getString(Keys.WEB_PATH)).getAbsolutePath());
         servletHolder.setInitParameter("dirAllowed", "false");
         if (config.getBoolean(Keys.WEB_DEBUG)) {
@@ -162,10 +156,7 @@ public class WebServer implements LifecycleObject {
         servletHandler.addServlet(servletHolder, "/*");
     }
 
-    private void initApi(Config config, ServletContextHandler servletHandler) {
-        servletHandler.addServlet(new ServletHolder(new AsyncSocketServlet()), "/api/socket");
-        JettyWebSocketServletContainerInitializer.configure(servletHandler, null);
-
+    private void initApi(ServletContextHandler servletHandler) {
         String mediaPath = config.getString(Keys.MEDIA_PATH);
         if (mediaPath != null) {
             ServletHolder servletHolder = new ServletHolder(DefaultServlet.class);
@@ -173,39 +164,27 @@ public class WebServer implements LifecycleObject {
             servletHolder.setInitParameter("dirAllowed", "false");
             servletHolder.setInitParameter("pathInfoOnly", "true");
             servletHandler.addServlet(servletHolder, "/api/media/*");
-            servletHandler.addFilter(MediaFilter.class, "/api/media/*", EnumSet.allOf(DispatcherType.class));
         }
 
         ResourceConfig resourceConfig = new ResourceConfig();
         resourceConfig.registerClasses(
-                JacksonFeature.class, ObjectMapperProvider.class, ResourceErrorHandler.class,
-                SecurityRequestFilter.class, CorsResponseFilter.class, DateParameterConverterProvider.class);
+                JacksonFeature.class,
+                ObjectMapperContextResolver.class,
+                DateParameterConverterProvider.class,
+                SecurityRequestFilter.class,
+                CorsResponseFilter.class,
+                ResourceErrorHandler.class);
         resourceConfig.packages(ServerResource.class.getPackage().getName());
-        resourceConfig.register(new ContainerLifecycleListener() {
-            @Override
-            public void onStartup(Container container) {
-                var injectionManager = container.getApplicationHandler().getInjectionManager();
-                var serviceLocator = ((ImmediateHk2InjectionManager) injectionManager).getServiceLocator();
-                GuiceBridge.getGuiceBridge().initializeGuiceBridge(serviceLocator);
-                var guiceBridge = serviceLocator.getService(GuiceIntoHK2Bridge.class);
-                guiceBridge.bridgeGuiceInjector(Main.getInjector());
-            }
-
-            @Override
-            public void onReload(Container container) {
-            }
-
-            @Override
-            public void onShutdown(Container container) {
-            }
-        });
+        if (resourceConfig.getClasses().stream().filter(ServerResource.class::equals).findAny().isEmpty()) {
+            LOGGER.warn("Failed to load API resources");
+        }
         servletHandler.addServlet(new ServletHolder(new ServletContainer(resourceConfig)), "/api/*");
     }
 
-    private void initSessionConfig(Config config, ServletContextHandler servletHandler) {
+    private void initSessionConfig(ServletContextHandler servletHandler) {
         if (config.getBoolean(Keys.WEB_PERSIST_SESSION)) {
             DatabaseAdaptor databaseAdaptor = new DatabaseAdaptor();
-            databaseAdaptor.setDatasource(Context.getDataManager().getDataSource());
+            databaseAdaptor.setDatasource(injector.getInstance(DataSource.class));
             JDBCSessionDataStoreFactory jdbcSessionDataStoreFactory = new JDBCSessionDataStoreFactory();
             jdbcSessionDataStoreFactory.setDatabaseAdaptor(databaseAdaptor);
             SessionHandler sessionHandler = servletHandler.getSessionHandler();
@@ -214,14 +193,16 @@ public class WebServer implements LifecycleObject {
             sessionHandler.setSessionCache(sessionCache);
         }
 
+        SessionCookieConfig sessionCookieConfig = servletHandler.getServletContext().getSessionCookieConfig();
+
         int sessionTimeout = config.getInteger(Keys.WEB_SESSION_TIMEOUT);
         if (sessionTimeout > 0) {
             servletHandler.getSessionHandler().setMaxInactiveInterval(sessionTimeout);
+            sessionCookieConfig.setMaxAge(sessionTimeout);
         }
 
         String sameSiteCookie = config.getString(Keys.WEB_SAME_SITE_COOKIE);
         if (sameSiteCookie != null) {
-            SessionCookieConfig sessionCookieConfig = servletHandler.getServletContext().getSessionCookieConfig();
             switch (sameSiteCookie.toLowerCase()) {
                 case "lax":
                     sessionCookieConfig.setComment(HttpCookie.SAME_SITE_LAX_COMMENT);
@@ -240,21 +221,13 @@ public class WebServer implements LifecycleObject {
     }
 
     @Override
-    public void start() {
-        try {
-            server.start();
-        } catch (Exception error) {
-            LOGGER.warn("Web server start failed", error);
-        }
+    public void start() throws Exception {
+        server.start();
     }
 
     @Override
-    public void stop() {
-        try {
-            server.stop();
-        } catch (Exception error) {
-            LOGGER.warn("Web server stop failed", error);
-        }
+    public void stop() throws Exception {
+        server.stop();
     }
 
 }
diff --git a/src/main/resources/META-INF/services/org.glassfish.jersey.internal.inject.InjectionManagerFactory b/src/main/resources/META-INF/services/org.glassfish.jersey.internal.inject.InjectionManagerFactory
new file mode 100644
index 000000000..ce0a70630
--- /dev/null
+++ b/src/main/resources/META-INF/services/org.glassfish.jersey.internal.inject.InjectionManagerFactory
@@ -0,0 +1 @@
+org.traccar.web.WebInjectionManagerFactory
diff --git a/src/main/resources/META-INF/services/org.jxls.expression.ExpressionEvaluatorFactory b/src/main/resources/META-INF/services/org.jxls.expression.ExpressionEvaluatorFactory
new file mode 100644
index 000000000..75d628857
--- /dev/null
+++ b/src/main/resources/META-INF/services/org.jxls.expression.ExpressionEvaluatorFactory
@@ -0,0 +1 @@
+org.traccar.reports.common.ExpressionEvaluatorFactory