Merge branch 'traccar:master' into master

529 files changed, 8248 insertions, 2858 deletions

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;