INVITE, 100, 183 look good but then the ringing RTP audio is sent to SER/proxy server instead of our media server! The SDP looks accurate... any ideas? Jamie Yukes

---------------------------------------------------------------------- ngrep call trace 64.158.AAA.AAA is our media server 64.158.BBB.BBB is our proxy server ( SER ) 209.247.CCC.CCC is far end proxy server 209.247.DDD.DDD is far end media server -----------------------------------------------------------------------

interface: any filter: ip and ( port 5060 or port 5070 or port 30000 or port 30036 ) # U 64.158.AAA.AAA:5060 -> 64.158.BBB.BBB:5060 INVITE sip:609XXXXXXX@64.158.BBB.BBB:5060 SIP/2.0. Via: SIP/2.0/UDP 64.158.AAA.AAA:5060. From: "609YYYYYYY" sip:609YYYYYYY@64.158.AAA.AAA:5060;user=phone;tag=L9-a4857c4577b880bf. To: sip:609XXXXXXX@64.158.BBB.BBB:5060;user=phone. Call-ID: L9-C8-424dd29dd3cf142d@64.158.AAA.AAA. CSeq: 1 INVITE. Contact: "609YYYYYYY" sip:609YYYYYYY@64.158.AAA.AAA:5060;user=phone. Max-Forwards: 10. User-Agent: ZZZ Gateway. Content-Type: application/sdp. Content-Length: 189. . v=0. o=609YYYYYYY 0 0 IN IP4 64.158.AAA.AAA. s=SIP Call. c=IN IP4 64.158.AAA.AAA. t=0 0. m=audio 30036 RTP/AVP 0 121. a=rtpmap:0 PCMU/8000. a=rtpmap:121 frf-dialed-digit/8000. a=fmtp:121 0-15.

# U 64.158.BBB.BBB:5060 -> 64.158.AAA.AAA:5060 SIP/2.0 100 trying -- your call is important to us. Via: SIP/2.0/UDP 64.158.AAA.AAA:5060. From: "609YYYYYYY" sip:609YYYYYYY@64.158.AAA.AAA:5060;user=phone;tag=L9-a4857c4577b880bf. To: sip:609XXXXXXX@64.158.BBB.BBB:5060;user=phone. Call-ID: L9-C8-424dd29dd3cf142d@64.158.AAA.AAA. CSeq: 1 INVITE. Server: Sip EXpress router (0.8.12 (i386/linux)). Content-Length: 0. Warning: 392 64.158.BBB.BBB:5060 "Noisy feedback tells: pid=21192 req_src_ip=64.158.AAA.AAA req_src_port=5060 in_uri=sip:609XXXXXXX@64.158.BBB.BBB:5060 out_uri=sip:+1609XXXXXXX@209.247.CCC.CCC:5060 via_cnt==1". .

# U 64.158.BBB.BBB:5060 -> 209.247.CCC.CCC:5060 INVITE sip:+1609XXXXXXX@209.247.CCC.CCC:5060 SIP/2.0. Record-Route: sip:609XXXXXXX@64.158.BBB.BBB;ftag=L9-a4857c4577b880bf;lr. Via: SIP/2.0/UDP 64.158.BBB.BBB;branch=z9hG4bKfbcc.e26d4cc7.0. Via: SIP/2.0/UDP 64.158.AAA.AAA:5060. From: sip:+1609YYYYYYY@64.158.AAA.AAA:5060;user=phone;tag=L9-a4857c4577b880bf. To: sip:+1609XXXXXXX@64.158.AAA.AAA:5060;user=phone. Call-ID: L9-C8-424dd29dd3cf142d@64.158.AAA.AAA. CSeq: 1 INVITE. Contact: sip:+1609YYYYYYY@64.158.AAA.AAA:5060;user=phone. Max-Forwards: 9 . User-Agent: ZZZ Gateway. Content-Type: application/sdp. Content-Length: 189. P-to: updated to e164. P-from: updated to e164. P-contact: updated to e164. . v=0. o=609YYYYYYY 0 0 IN IP4 64.158.AAA.AAA. s=SIP Call. c=IN IP4 64.158.AAA.AAA. t=0 0. m=audio 30036 RTP/AVP 0 121. a=rtpmap:0 PCMU/8000. a=rtpmap:121 frf-dialed-digit/8000. a=fmtp:121 0-15.

# U 209.247.CCC.CCC:44660 -> 64.158.BBB.BBB:5060 SIP/2.0 100 Trying. Via: SIP/2.0/UDP 64.158.BBB.BBB:5060;branch=z9hG4bKfbcc.e26d4cc7.0,SIP/2.0/UDP 64.158.AAA.AAA:5060. From: sip:+1609YYYYYYY@64.158.AAA.AAA:5060;user=phone;tag=L9-a4857c4577b880bf. To: sip:+1609XXXXXXX@64.158.AAA.AAA:5060;user=phone. Call-ID: L9-C8-424dd29dd3cf142d@64.158.AAA.AAA. CSeq: 1 INVITE. Content-Length: 0. .

# U 209.247.CCC.CCC:44660 -> 64.158.BBB.BBB:5060 SIP/2.0 183 Session Progress. Via: SIP/2.0/UDP 64.158.BBB.BBB:5060;branch=z9hG4bKfbcc.e26d4cc7.0,SIP/2.0/UDP 64.158.AAA.AAA:5060. Record-Route: sip:609XXXXXXX@64.158.BBB.BBB;ftag=L9-a4857c4577b880bf;lr. From: sip:+1609YYYYYYY@64.158.AAA.AAA:5060;user=phone;tag=L9-a4857c4577b880bf. To: sip:+1609XXXXXXX@64.158.AAA.AAA:5060;user=phone;tag=VPST50603522629633. Call-ID: L9-C8-424dd29dd3cf142d@64.158.AAA.AAA. CSeq: 1 INVITE. Contact: sip:209.247.CCC.CCC:5060;transport=udp. Content-Type: application/sdp. Content-Length: 124. . v=0. o=- 1087411692 1087411693 IN IP4 209.247.DDD.DDD. s=-. c=IN IP4 209.247.DDD.DDD. t=0 0. m=audio 60590 RTP/AVP 0. a=ptime:20.

# U 64.158.BBB.BBB:5060 -> 64.158.AAA.AAA:5060 SIP/2.0 183 Session Progress. Via: SIP/2.0/UDP 64.158.AAA.AAA:5060. Record-Route: sip:609XXXXXXX@64.158.BBB.BBB;ftag=L9-a4857c4577b880bf;lr. From: sip:+1609YYYYYYY@64.158.AAA.AAA:5060;user=phone;tag=L9-a4857c4577b880bf. To: sip:+1609XXXXXXX@64.158.AAA.AAA:5060;user=phone;tag=VPST50603522629633. Call-ID: L9-C8-424dd29dd3cf142d@64.158.AAA.AAA. CSeq: 1 INVITE. Contact: sip:209.247.CCC.CCC:5060;transport=udp. Content-Type: application/sdp. Content-Length: 124. . v=0. o=- 1087411692 1087411693 IN IP4 209.247.DDD.DDD. s=-. c=IN IP4 209.247.DDD.DDD. t=0 0. m=audio 60590 RTP/AVP 0. a=ptime:20.

# U 209.247.DDD.DDD:60590 -> 64.158.BBB.BBB:30036 ....>*.. ..a....._B83238BZ.........O@<9;<FV.........cQJHGKQ\w........}rpu~....xi^YTTW]q.........WJB?>AHZ.........VB:658;Is........bB8///3=T.........F7/+,.6F.........Q:/,+,0 # U 209.247.DDD.DDD:60590 -> 64.158.BBB.BBB:30036 ....>*.o ..a=^........o@3-+,09L.........K:0-..7Dy........_B93038B.........O@<9;=FV.........cPJHGKP\u........|qqu~....xi]XTTV]p.........VKB?>AHY.........VB:657;Is........aC # U 209.247.DDD.DDD:60590 -> 64.158.BBB.BBB:30036 ....>*.. ..a.i..8///3=T.........F7/,,.6F.........R:/,+,0=^........s?3-*-08J.........L:1-./7Cw........_C92038BZ.........OA<9;=GU.........cRJHGKP]t........|qpv.....xi]XTRW\p..... #