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-rw-r--r--channels/chan_sip.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 162cfb62d..362713293 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -5996,7 +5996,7 @@ static int add_sdp(struct sip_request *resp, struct sip_pvt *p)
if (option_debug > 2)
ast_log(LOG_DEBUG, "-- Done with adding codecs to SDP\n");
- if(!ast_internal_timing_enabled(p->owner))
+ if(!p->owner || !ast_internal_timing_enabled(p->owner))
ast_build_string(&a_audio_next, &a_audio_left, "a=silenceSupp:off - - - -\r\n");
if ((m_audio_left < 2) || (m_video_left < 2) || (a_audio_left == 0) || (a_video_left == 0))