After i add the v line in the endpoint of pjsip i got this. and I make call it not work at all got status Disconnect all the time. Y? v=0 o=- 3474715288 3474715288 IN IP4 192.168.2.121 s=pjmedia c=IN IP4 192.168.2.121 t=0 0 m=audio 4000 RTP/AVP 103 102 104 113 3 0 8 9 101 a=rtcp:4001 IN IP4 192.168.2.121 a=rtpmap:103 speex/16000 a=rtpmap:102 speex/8000 a=rtpmap:104 speex/32000 a=rtpmap:113 iLBC/8000 a=fmtp:113 mode=30 a=rtpmap:3 GSM/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:8 PCMA/8000 a=rtpmap:9 G722/8000 a=sendrecv a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 m=video 4006 RTP/AVP 98 a=rtpmap:98 H264/90000 a=sendrecv Any idea or what did i do wrong? Thanks,, Raksa,, -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100209/5e561529/attachment.html>