1 files changed, 1 insertions, 1 deletions
diff --git a/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java b/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
index 903c37a8f..c469be442 100644
--- a/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
@@ -421,7 +421,7 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
 
         String type = values[index++];
 
-        if (!type.equals("STT")) {
+        if (!type.equals("STT") && !type.equals("ALT")) {
             return null;
         }