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-rw-r--r--channels/chan_sip.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index f62f77fb4..c39339c91 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -4535,6 +4535,9 @@ static void add_codec_to_sdp(const struct sip_pvt *p, int codec, int sample_rate
if (codec == AST_FORMAT_G729A)
/* Indicate that we don't support VAD (G.729 annex B) */
ast_build_string(a_buf, a_size, "a=fmtp:%d annexb=no\r\n", rtp_code);
+ else if (codec == AST_FORMAT_G723_1)
+ /* Indicate that we don't support VAD (G.723.1 annex A) */
+ ast_build_string(a_buf, a_size, "a=fmtp:%d annexa=no\r\n", rtp_code);
}
static void add_noncodec_to_sdp(const struct sip_pvt *p, int format, int sample_rate,