2 files changed, 10 insertions, 0 deletions

diff --git a/src/org/traccar/protocol/gl100/Gl100ProtocolDecoder.java b/src/org/traccar/protocol/gl100/Gl100ProtocolDecoder.java
index e2c576d69..25ce737fc 100644
--- a/src/org/traccar/protocol/gl100/Gl100ProtocolDecoder.java
+++ b/src/org/traccar/protocol/gl100/Gl100ProtocolDecoder.java
@@ -84,6 +84,14 @@ public class Gl100ProtocolDecoder extends OneToOneDecoder {
 
         String sentence = (String) msg;
         
+        // Send response
+        if (sentence.contains("AT+GTHBD=")) {
+            String response = "+RESP:GTHBD,GPRS ACTIVE,";
+            response += sentence.substring(9, sentence.lastIndexOf(','));
+            response += '\0';
+            channel.write(response);
+        }
+        
         // Parse message
         Matcher parser = pattern.matcher(sentence);
         if (!parser.matches()) {
diff --git a/test/org/traccar/protocol/gl100/Gl100ProtocolDecoderTest.java b/test/org/traccar/protocol/gl100/Gl100ProtocolDecoderTest.java
index 614eb3478..972e849e2 100644
--- a/test/org/traccar/protocol/gl100/Gl100ProtocolDecoderTest.java
+++ b/test/org/traccar/protocol/gl100/Gl100ProtocolDecoderTest.java
@@ -51,6 +51,8 @@ public class Gl100ProtocolDecoderTest {
         assertNotNull(decoder.decode(null, null,
                 "+RESP:GTTRI,359231030000010,2,0,0,1,4.3,92,70.0,1,121.354335,31.222073,20090101000000,0460,0000,18d8,6141,00,0,0,1,-3.6,145,30.0,2,121.354442,31.221940,20090101000100,0460,0000,18d8,6141,00,11F0,0102120204"));
 
+        //assertNotNull(decoder.decode(null, null,
+        //        "AT+GTHBD=HeartBeat,359231030000010,20090101000000,11F0,0102120204"));
         
     }