This fix introduced via bug 8233

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@47176 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 3477d9d96309df71c2756999a729d259a052bfd8..b13a4705590e28f8e1ce6ebeaaca0a8877dcf855 100644 (file)
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -5813,6 +5813,10 @@ static void add_codec_to_sdp(const struct sip_pvt *p, int codec, int sample_rate
 
        if (fmt.cur_ms && (fmt.cur_ms < *min_packet_size))
                *min_packet_size = fmt.cur_ms;
+
+       /* Our first codec packetization processed cannot be less than zero */
+       if ((*min_packet_size) == 0  && fmt.cur_ms)
+               *min_packet_size = fmt.cur_ms;
 }
 
 /*! \brief Get Max T.38 Transmission rate from T38 capabilities */