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-rw-r--r--src/main/java/org/traccar/protocol/TaipProtocolDecoder.java9
1 files changed, 7 insertions, 2 deletions
diff --git a/src/main/java/org/traccar/protocol/TaipProtocolDecoder.java b/src/main/java/org/traccar/protocol/TaipProtocolDecoder.java
index 285e68ddd..0878e65af 100644
--- a/src/main/java/org/traccar/protocol/TaipProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TaipProtocolDecoder.java
@@ -307,8 +307,13 @@ public class TaipProtocolDecoder extends BaseProtocolDecoder {
if (deviceSession != null) {
if (channel != null) {
if (messageIndex != null) {
- String response = ">ACK;ID=" + uniqueId + ";" + messageIndex + ";*";
- response += String.format("%02X", Checksum.xor(response)) + "<";
+ String response;
+ if (messageIndex.startsWith("#IP:")) {
+ response = ">SAK;ID=" + uniqueId + ";" + messageIndex + "<";
+ } else {
+ response = ">ACK;ID=" + uniqueId + ";" + messageIndex + ";*";
+ response += String.format("%02X", Checksum.xor(response)) + "<";
+ }
channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
} else {
channel.writeAndFlush(new NetworkMessage(uniqueId, remoteAddress));