From 2c399d684178dc0a22b1c8e50ad6eff000c41062 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Fri, 29 Nov 2019 10:32:02 -0800
Subject: Detect binary messages

---
 src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/main/java')

diff --git a/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java b/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
index 601d127f1..f9fcfe79d 100644
--- a/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
@@ -625,7 +625,7 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
 
         ByteBuf buf = (ByteBuf) msg;
 
-        if (buf.getByte(buf.readerIndex()) == (byte) 0x81) {
+        if (buf.getByte(buf.readerIndex() + 1) == 0) {
 
             return decodeBinary(channel, remoteAddress, buf);
 
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