diff --git a/src/mod/endpoints/mod_h323/changes.txt b/src/mod/endpoints/mod_h323/changes.txt
index 80d9119e4d..0635cd62e8 100644
--- a/src/mod/endpoints/mod_h323/changes.txt
+++ b/src/mod/endpoints/mod_h323/changes.txt
@@ -1,3 +1,4 @@
+remove SWITCH_RTP_FLAG_AUTO_CNG - works incorrectly.
 moves the switch_rtp_request_port() call from the contructor to FSH323Connection::CreateRealTimeLogicalChannel() - fix 
     rtp port leak. tnx to Peter Olsson.
 fix log printing
diff --git a/src/mod/endpoints/mod_h323/mod_h323.cpp b/src/mod/endpoints/mod_h323/mod_h323.cpp
index 26323ddaea..3fe2290e4c 100644
--- a/src/mod/endpoints/mod_h323/mod_h323.cpp
+++ b/src/mod/endpoints/mod_h323/mod_h323.cpp
@@ -2131,7 +2131,7 @@ PBoolean FSH323_ExternalRTPChannel::Start()
 	}
 	
 	if ((!m_conn->m_startRTP)) {			
-		flags = (switch_rtp_flag_t) (SWITCH_RTP_FLAG_DATAWAIT|SWITCH_RTP_FLAG_AUTO_CNG|SWITCH_RTP_FLAG_RAW_WRITE);
+		flags = (switch_rtp_flag_t) (SWITCH_RTP_FLAG_DATAWAIT|SWITCH_RTP_FLAG_RAW_WRITE);
 
 		if (mod_h323_globals.use_rtp_timer) {
 			flags |= SWITCH_RTP_FLAG_USE_TIMER;