Hi all, I am routing G729 calls from Gateway X to Gateway Z using FREESWITCH Y, I have enabled bypass media for G729 passthrough. my FreeSwitch Y accepts calls from X and when it route to Z it receives "183 Session Progress." from there. Problem comes after that, FS is cancelling the call after getting 183 session progress. Below is the ngrep trace of whole scenario i have mentioned above: ################################################################################ # U xx.xx.xxx.xx:63263 -> yy.yy.yy.yyy:5060 INVITE sip:NUMBER@yy.yy.yy.yyy SIP/2.0. Via: SIP/2.0/UDP xx.xx.xxx.xx:63263;branch=z9hG4bK5c350148;rport. From: "1001" <sip:1001@xx.xx.xxx.xx>;tag=as237d0908. To: <sip:NUMBER@yy.yy.yy.yyy>. Contact: <sip:1001@xx.xx.xxx.xx>. Call-ID: 416b336c14dc309e371459124f947790@xx.xx.xxx.xx. CSeq: 102 INVITE. User-Agent: Asterisk PBX. Max-Forwards: 70. Date: Sun, 19 Oct 2008 12:46:14 GMT. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY. Supported: replaces. Content-Type: application/sdp. Content-Length: 261. . v=0. o=root 6936 6936 IN IP4 xx.xx.xxx.xx. s=session. c=IN IP4 xx.xx.xxx.xx. t=0 0. m=audio 63264 RTP/AVP 18 101. a=rtpmap:18 G729/8000. a=fmtp:18 annexb=no. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=silenceSupp:off - - - -. a=ptime:20. a=sendrecv. # U yy.yy.yy.yyy:5060 -> xx.xx.xxx.xx:63263 SIP/2.0 100 Trying. Via: SIP/2.0/UDP xx.xx.xxx.xx:63263;branch=z9hG4bK5c350148;rport=63263. From: "1001" <sip:1001@xx.xx.xxx.xx>;tag=as237d0908. To: <sip:NUMBER@yy.yy.yy.yyy>. Call-ID: 416b336c14dc309e371459124f947790@xx.xx.xxx.xx. CSeq: 102 INVITE. User-Agent: FreeSWITCH-mod_sofia/1.0.1-exported. Content-Length: 0. . # U yy.yy.yy.yyy:5080 -> zz.zz.zz.zzz:5060 INVITE sip:NUMBER@zz.zz.zz.zzz SIP/2.0. Via: SIP/2.0/UDP yy.yy.yy.yyy:5080;rport;branch=z9hG4bKN0NFB8QrS096F. Max-Forwards: 69. From: "1001" <sip:1001@yy.yy.yy.yyy>;tag=NUZ4UvUv8tKvK. To: <sip:NUMBER@zz.zz.zz.zzz>. Call-ID: eb8148d6-17ab-122c-93b5-003048911494. CSeq: 106046574 INVITE. Contact: <sip:mod_sofia@yy.yy.yy.yyy:5080>. User-Agent: FreeSWITCH-mod_sofia/1.0.1-exported. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE, SUBSCRIBE, NOTIFY, REFER, UPDATE, REGISTER, INFO. Supported: 100rel, timer, precondition, path, replaces. Allow-Events: talk. Min-SE: 120. Content-Type: application/sdp. Content-Disposition: session. Content-Length: 279. Remote-Party-ID: "1001" <sip:1001@yy.yy.yy.yyy>;screen=yes;privacy=off. . v=0. o=FreeSWITCH 1666183455704603611 2165736585687934666 IN IP4 yy.yy.yy.yyy. s=FreeSWITCH. c=IN IP4 yy.yy.yy.yyy. t=0 0. a=sendrecv. m=audio 20094 RTP/AVP 18 101. a=rtpmap:18 G729/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=silenceSupp:off - - - -. a=ptime:20. # U zz.zz.zz.zzz:5060 -> yy.yy.yy.yyy:5080 SIP/2.0 100 Trying. Via: SIP/2.0/UDP yy.yy.yy.yyy:5080;rport;branch=z9hG4bKN0NFB8QrS096F. From: "1001" <sip:1001@yy.yy.yy.yyy>;tag=NUZ4UvUv8tKvK. To: <sip:NUMBER@zz.zz.zz.zzz>. Call-ID: eb8148d6-17ab-122c-93b5-003048911494. CSeq: 106046574 INVITE. Content-Length: 0. . # U zz.zz.zz.zzz:5060 -> yy.yy.yy.yyy:5080 SIP/2.0 183 Session Progress. Require: 100rel. Via: SIP/2.0/UDP yy.yy.yy.yyy:5080;rport;branch=z9hG4bKN0NFB8QrS096F. RSeq: 1. To: <sip:NUMBER@zz.zz.zz.zzz>;tag=3433323190-141009. From: "1001" <sip:1001@yy.yy.yy.yyy>;tag=NUZ4UvUv8tKvK. Call-ID: eb8148d6-17ab-122c-93b5-003048911494. CSeq: 106046574 INVITE. Allow: INVITE, BYE, OPTIONS, CANCEL, ACK, REGISTER, NOTIFY, INFO, REFER, SUBSCRIBE, PRACK, UPDATE. Contact: <sip:NUMBER@zz.zz.zz.zzz:5060>. Call-Info: <sip:zz.zz.zz.zzz>;method="NOTIFY;Event=telephone-event;Duration=1000". Allow-Events: telephone-event. Content-Type: application/sdp. Content-Length: 143. . v=0. o=diamond-msc2 6683 705 IN IP4 zz.zz.zz.zzz. s=sip call. c=IN IP4 213.170.194.56. t=0 0. m=audio 43078 RTP/AVP 101. a=rtpmap:101 /8000. # U yy.yy.yy.yyy:5080 -> zz.zz.zz.zzz:5060 CANCEL sip:NUMBER@zz.zz.zz.zzz SIP/2.0. Via: SIP/2.0/UDP yy.yy.yy.yyy:5080;rport;branch=z9hG4bKN0NFB8QrS096F. Max-Forwards: 69. From: "1001" <sip:1001@yy.yy.yy.yyy>;tag=NUZ4UvUv8tKvK. To: <sip:NUMBER@zz.zz.zz.zzz>. Call-ID: eb8148d6-17ab-122c-93b5-003048911494. CSeq: 106046574 CANCEL. Content-Length: 0. . # U zz.zz.zz.zzz:5060 -> yy.yy.yy.yyy:5080 SIP/2.0 200 OK. Via: SIP/2.0/UDP yy.yy.yy.yyy:5080;rport;branch=z9hG4bKN0NFB8QrS096F. To: <sip:NUMBER@zz.zz.zz.zzz>;tag=3433323190-141009. From: "1001" <sip:1001@yy.yy.yy.yyy>;tag=NUZ4UvUv8tKvK. Call-ID: eb8148d6-17ab-122c-93b5-003048911494. CSeq: 106046574 CANCEL. Allow: INVITE, BYE, OPTIONS, CANCEL, ACK, REGISTER, NOTIFY, INFO, REFER, SUBSCRIBE, PRACK, UPDATE. Contact: <sip:NUMBER@zz.zz.zz.zzz:5060>. Content-Length: 0. . # U zz.zz.zz.zzz:5060 -> yy.yy.yy.yyy:5080 SIP/2.0 487 Request Terminated. Via: SIP/2.0/UDP yy.yy.yy.yyy:5080;rport;branch=z9hG4bKN0NFB8QrS096F. To: <sip:NUMBER@zz.zz.zz.zzz>;tag=3433323190-141009. From: "1001" <sip:1001@yy.yy.yy.yyy>;tag=NUZ4UvUv8tKvK. Reason: Q.850;cause=16. Call-ID: eb8148d6-17ab-122c-93b5-003048911494. CSeq: 106046574 INVITE. Allow: INVITE, BYE, OPTIONS, CANCEL, ACK, REGISTER, NOTIFY, INFO, REFER, SUBSCRIBE, PRACK, UPDATE. Contact: <sip:NUMBER@zz.zz.zz.zzz:5060>. Call-Info: <sip:zz.zz.zz.zzz>;method="NOTIFY;Event=telephone-event;Duration=1000". Content-Length: 0. . # U yy.yy.yy.yyy:5080 -> zz.zz.zz.zzz:5060 ACK sip:NUMBER@zz.zz.zz.zzz SIP/2.0. Via: SIP/2.0/UDP yy.yy.yy.yyy:5080;rport;branch=z9hG4bKN0NFB8QrS096F. Max-Forwards: 69. From: "1001" <sip:1001@yy.yy.yy.yyy>;tag=NUZ4UvUv8tKvK. To: <sip:NUMBER@zz.zz.zz.zzz>;tag=3433323190-141009. Call-ID: eb8148d6-17ab-122c-93b5-003048911494. CSeq: 106046574 ACK. Content-Length: 0. ##################################################################################### Waiting for your reply Thanks MSP -- View this message in context: http://www.nabble.com/Not-passing-G729-calls-tp20047045p20047045.html Sent from the Freeswitch-users mailing list archive at Nabble.com.