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-rw-r--r--src/main/java/org/traccar/protocol/VltProtocolDecoder.java4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/main/java/org/traccar/protocol/VltProtocolDecoder.java b/src/main/java/org/traccar/protocol/VltProtocolDecoder.java
index 8890dece1..01c0563f5 100644
--- a/src/main/java/org/traccar/protocol/VltProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/VltProtocolDecoder.java
@@ -124,13 +124,15 @@ public class VltProtocolDecoder extends BaseHttpProtocolDecoder {
switch (type) {
case "NRM":
return decodePosition(deviceSession, sentence.substring(3 + 15));
- default:
+ 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;
}
}