From 86ab3c5d1e6e6109fab8e4ecec725e078560f7c9 Mon Sep 17 00:00:00 2001
From: Patrice Fournier <patrice@foipdev2.phl.corp.t38fax.com>
Date: Thu, 30 Jul 2015 22:27:35 -0400
Subject: [PATCH] FS-7942 #comment Fix segfault on T.38 FAX calls

---
 src/switch_rtp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/switch_rtp.c b/src/switch_rtp.c
index 9e427dc821..714ee2ca48 100644
--- a/src/switch_rtp.c
+++ b/src/switch_rtp.c
@@ -6800,7 +6800,7 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_zerocopy_read_frame(switch_rtp_t *rtp
 
 	frame->data = RTP_BODY(rtp_session);
 
-	if (bytes < rtp_header_len || switch_test_flag(frame, SFF_CNG)) {
+	if (!rtp_session->flags[SWITCH_RTP_FLAG_UDPTL] && (bytes < rtp_header_len || switch_test_flag(frame, SFF_CNG))) {
 		frame->packet = NULL;
 		frame->timestamp = 0;
 		frame->seq = 0;