Hi All.
I'm using dev12 and I'm interfacing with a company that uses Sonus equipment to terminate to the PSTN. This company is telling me that SER is not performing to RFC3261 because ACK messages are not including all the record-route information as stated in section 12.1.2.
Following is an email I recieved from their network engineers. Attached is also a complete conversation between my SER proxy and their Sonus box. The actual problem is that Sonus disconnects the call after a few seconds because of an ACK routing issue.
Anyhow can someone advise me on weather or not this is truly a SER issue or a Sonus issue?
Regards, Paul
+++++++++EMAIL FROM THE GUYS USING SONUS++++++++++++++
No, this is definitely not a Sonus issue.
The response sent from the Sonus to the SER contains the correct set of Record-Route (every hop that the original INVITE has traversed). When the SER sends back the ACK, the SER if it acts as a UAC, then must include this set of Record-Route as Route in the message per RFC3261 section 12.1.2.
I believe you will have problem with this if you interface the SER with any SIP proxy. I assume that it works with Broadvox because you are connected directly to their gateway and no other proxy is in between. If you were to connect directly with the Sonus, then it would work.
The problem should be fixed on your end. You just need to look into the code where it generates the ACK and follow RFC3261 section 12.1.2 on how to build and send it.
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U 2004/11/17 14:59:50.990562 68.80.200.100:1063 -> 68.80.201.101:5060 INVITE sip:14075551212@sip.mycompany.com;user=phone SIP/2.0. Via: SIP/2.0/UDP 192.168.0.83;branch=z9hG4bKedd18d2af50b4ade. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. To: sip:14075551212@sip.mycompany.com;user=phone. Contact: sip:9990010001@192.168.0.83;user=phone. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12009 INVITE. User-Agent: Grandstream BT100 1.0.5.11. Max-Forwards: 70. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE. Content-Type: application/sdp. Content-Length: 377. . v=0. o=9990010001 8000 8000 IN IP4 192.168.0.83. s=SIP Call. c=IN IP4 192.168.0.83. t=0 0. m=audio 5004 RTP/AVP 98 18 4 15 2 8 9 101. a=rtpmap:98 iLBC/8000. a=fmtp:98 mode=20. a=rtpmap:18 G729/8000. a=rtpmap:4 G723/8000. a=rtpmap:15 G728/8000. a=rtpmap:2 G726-32/8000. a=rtpmap:8 PCMA/8000. a=rtpmap:9 G722/8000. a=ptime:40. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-11.
# U 2004/11/17 14:59:50.991323 68.80.201.101:5060 -> 68.80.200.100:1063 SIP/2.0 407 Proxy Authentication Required. Via: SIP/2.0/UDP 192.168.0.83;branch=z9hG4bKedd18d2af50b4ade;rport=1063;received=68.80.200.100. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. To: sip:14075551212@sip.mycompany.com;user=phone;tag=bf952ed189d8425c881b09485aa0b6f1.3e61. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12009 INVITE. Proxy-Authenticate: Digest realm="sip.mycompany.com", nonce="419baee2139477c22db6d0ec9a47b23003512431". Server: mycompany SIP Router (0.8.99-dev12 (i386/linux)). Content-Length: 0. Warning: 392 68.80.201.101:5060 "Noisy feedback tells: pid=8495 req_src_ip=68.80.200.100 req_src_port=1063 in_uri=sip:14075551212@sip.mycompany.com;user=phone out_uri=sip:14075551212@sip.mycompany.com;user=phone via_cnt==1". .
# U 2004/11/17 14:59:50.997782 68.80.200.100:1063 -> 68.80.201.101:5060 ACK sip:14075551212@sip.mycompany.com;user=phone SIP/2.0. Via: SIP/2.0/UDP 192.168.0.83;branch=z9hG4bKedd18d2af50b4ade. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. To: sip:14075551212@sip.mycompany.com;user=phone;tag=bf952ed189d8425c881b09485aa0b6f1.3e61. Contact: sip:9990010001@192.168.0.83;user=phone. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12009 ACK. User-Agent: Grandstream BT100 1.0.5.11. Max-Forwards: 70. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE. Content-Length: 0. .
# U 2004/11/17 14:59:51.001721 68.80.200.100:1063 -> 68.80.201.101:5060 INVITE sip:14075551212@sip.mycompany.com;user=phone SIP/2.0. Via: SIP/2.0/UDP 192.168.0.83;branch=z9hG4bK20ba9258b87f741d. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. To: sip:14075551212@sip.mycompany.com;user=phone. Contact: sip:9990010001@192.168.0.83;user=phone. Proxy-Authorization: DIGEST username="9990010001", realm="sip.mycompany.com", algorithm=MD5, uri="sip:14075551212@sip.mycompany.com;user=phone", nonce="419baee2139477c22db6d0ec9a47b23003512431", response="239c34ca795c25a403283072aceb469b". Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. User-Agent: Grandstream BT100 1.0.5.11. Max-Forwards: 70. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE. Content-Type: application/sdp. Content-Length: 377. . v=0. o=9990010001 8000 8000 IN IP4 192.168.0.83. s=SIP Call. c=IN IP4 192.168.0.83. t=0 0. m=audio 5004 RTP/AVP 98 18 4 15 2 8 9 101. a=rtpmap:98 iLBC/8000. a=fmtp:98 mode=20. a=rtpmap:18 G729/8000. a=rtpmap:4 G723/8000. a=rtpmap:15 G728/8000. a=rtpmap:2 G726-32/8000. a=rtpmap:8 PCMA/8000. a=rtpmap:9 G722/8000. a=ptime:40. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-11.
# U 2004/11/17 14:59:51.003660 68.80.201.101:5060 -> 68.80.200.100:1063 SIP/2.0 100 trying -- your call is important to us. Via: SIP/2.0/UDP 192.168.0.83;branch=z9hG4bK20ba9258b87f741d;rport=1063;received=68.80.200.100. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. To: sip:14075551212@sip.mycompany.com;user=phone. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. Server: mycompany SIP Router (0.8.99-dev12 (i386/linux)). Content-Length: 0. Warning: 392 68.80.201.101:5060 "Noisy feedback tells: pid=8493 req_src_ip=68.80.200.100 req_src_port=1063 in_uri=sip:14075551212@sip.mycompany.com;user=phone out_uri=sip:4075551212@216.229.127.60;user=phone via_cnt==1". .
# U 2004/11/17 14:59:51.003755 68.80.201.101:5060 -> 216.229.127.60:5060 INVITE sip:4075551212@216.229.127.60;user=phone SIP/2.0. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Via: SIP/2.0/UDP 68.80.201.101;branch=z9hG4bK6628.1a8491a7.0. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK20ba9258b87f741d. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. To: sip:14075551212@sip.mycompany.com;user=phone. Contact: sip:9990010001@68.80.200.100:1063;user=phone. Proxy-Authorization: DIGEST username="9990010001", realm="sip.mycompany.com", algorithm=MD5, uri="sip:14075551212@sip.mycompany.com;user=phone", nonce="419baee2139477c22db6d0ec9a47b23003512431", response="239c34ca795c25a403283072aceb469b". Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. User-Agent: Grandstream BT100 1.0.5.11. Max-Forwards: 16. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE. Content-Type: application/sdp. Content-Length: 417. . v=0. o=9990010001 8000 8000 IN IP4 192.168.0.83. s=SIP Call. c=IN IP4 68.80.201.101. t=0 0. m=audio 35228 RTP/AVP 98 18 4 15 2 8 9 101. a=rtpmap:98 iLBC/8000. a=fmtp:98 mode=20. a=rtpmap:18 G729/8000. a=rtpmap:4 G723/8000. a=rtpmap:15 G728/8000. a=rtpmap:2 G726-32/8000. a=rtpmap:8 PCMA/8000. a=rtpmap:9 G722/8000. a=ptime:40. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-11. a=direction:active. a=nortpproxy:yes.
# U 2004/11/17 14:59:51.052928 216.229.127.60:5060 -> 68.80.201.101:5060 SIP/2.0 100 Try. Via: SIP/2.0/UDP 68.80.201.101;branch=z9hG4bK6628.1a8491a7.0. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK20ba9258b87f741d. To: sip:14075551212@sip.mycompany.com;user=phone. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. Proxy-Authorization: Digest username="9990010001", realm="sip.mycompany.com", algorithm=MD5, uri="sip:14075551212@sip.mycompany.com;user=phone", nonce="419baee2139477c22db6d0ec9a47b23003512431", response="239c34ca795c25a403283072aceb469b". User-Agent: Grandstream BT100 1.0.5.11 . Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, OPTIONS, INFO, SUBSCRIBE. Content-Type: application/sdp. Content-Length: 0. .
##### U 2004/11/17 14:59:54.187710 216.229.127.60:5060 -> 68.80.201.101:5060 SIP/2.0 183 Session Progress. Via: SIP/2.0/UDP 68.80.201.101;branch=z9hG4bK6628.1a8491a7.0. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK20ba9258b87f741d. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. Contact: sip:4075551212@216.229.50.90:4060. Record-Route: sip:216.229.127.60:5060;lr. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO. Content-Disposition: session;handling=required. Content-Type: application/sdp. Content-Length: 225. . v=0. o=Sonus_UAC 57 25508 IN IP4 216.229.50.90. s=SIP Media Capabilities. c=IN IP4 216.229.118.100. t=0 0. m=audio 18212 RTP/AVP 18 101. a=rtpmap:18 G729/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=sendrecv.
# U 2004/11/17 14:59:54.188328 68.80.201.101:5060 -> 68.80.200.100:1063 SIP/2.0 183 Session Progress. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK20ba9258b87f741d. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. Contact: sip:4075551212@216.229.127.60:5060. Record-Route: sip:216.229.127.60:5060;lr. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO. Content-Disposition: session;handling=required. Content-Type: application/sdp. Content-Length: 241. . v=0. o=Sonus_UAC 57 25508 IN IP4 216.229.50.90. s=SIP Media Capabilities. c=IN IP4 68.80.201.101. t=0 0. m=audio 35230 RTP/AVP 18 101. a=rtpmap:18 G729/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=sendrecv. a=nortpproxy:yes.
### U 2004/11/17 14:59:59.215974 216.229.127.60:5060 -> 68.80.201.101:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 68.80.201.101;branch=z9hG4bK6628.1a8491a7.0. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK20ba9258b87f741d. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. Contact: sip:4075551212@216.229.50.90:4060. Record-Route: sip:216.229.127.60:5060;lr. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay. Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO. Supported: timer. Content-Disposition: session;handling=required. Content-Type: application/sdp. Session-Expires: 240;refresher=uas. Content-Length: 225. . v=0. o=Sonus_UAC 57 25508 IN IP4 216.229.50.90. s=SIP Media Capabilities. c=IN IP4 216.229.118.100. t=0 0. m=audio 18212 RTP/AVP 18 101. a=rtpmap:18 G729/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=sendrecv.
# U 2004/11/17 14:59:59.216728 68.80.201.101:5060 -> 68.80.200.100:1063 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK20ba9258b87f741d. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. Contact: sip:4075551212@216.229.127.60:5060. Record-Route: sip:216.229.127.60:5060;lr. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay. Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO. Supported: timer. Content-Disposition: session;handling=required. Content-Type: application/sdp. Session-Expires: 240;refresher=uas. Content-Length: 241. . v=0. o=Sonus_UAC 57 25508 IN IP4 216.229.50.90. s=SIP Media Capabilities. c=IN IP4 68.80.201.101. t=0 0. m=audio 35230 RTP/AVP 18 101. a=rtpmap:18 G729/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=sendrecv. a=nortpproxy:yes.
# U 2004/11/17 14:59:59.255342 68.80.200.100:1063 -> 68.80.201.101:5060 ACK sip:4075551212@216.229.127.60:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.0.83;branch=z9hG4bKe15e695c98bd9cb0. Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Route: sip:216.229.127.60:5060;lr. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. Contact: sip:9990010001@192.168.0.83;user=phone. Proxy-Authorization: DIGEST username="9990010001", realm="sip.mycompany.com", algorithm=MD5, uri="sip:4075551212@216.229.127.60:5060", nonce="419baee2139477c22db6d0ec9a47b23003512431", response="7b83435f78bc60f5ced80304c7d54093". Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 ACK. User-Agent: Grandstream BT100 1.0.5.11. Max-Forwards: 70. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE. Content-Length: 0. . # U 2004/11/17 14:59:59.255737 68.80.201.101:5060 -> 216.229.127.60:5060 ACK sip:216.229.127.60:5060;lr SIP/2.0. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Via: SIP/2.0/UDP 68.80.201.101;branch=0. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bKe15e695c98bd9cb0. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. Contact: sip:9990010001@68.80.200.100:1063;user=phone. Proxy-Authorization: DIGEST username="9990010001", realm="sip.mycompany.com", algorithm=MD5, uri="sip:4075551212@216.229.127.60:5060", nonce="419baee2139477c22db6d0ec9a47b23003512431", response="7b83435f78bc60f5ced80304c7d54093". Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 ACK. User-Agent: Grandstream BT100 1.0.5.11. Max-Forwards: 16. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE. Content-Length: 0. . # U 2004/11/17 14:59:59.704902 216.229.127.60:5060 -> 68.80.201.101:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 68.80.201.101;branch=z9hG4bK6628.1a8491a7.0. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK20ba9258b87f741d. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. From: "Paul (1002)" sip:9990010001@216.229.127.60;user=phone;tag=4edd147cdac0025f. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. Contact: sip:4075551212@216.229.50.90:4060. Record-Route: sip:216.229.127.60:5060;lr. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay. Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO. Supported: timer. Content-Disposition: session;handling=required. Content-Type: application/sdp. Session-Expires: 240;refresher=uas. Content-Length: 225. . v=0. o=Sonus_UAC 57 25508 IN IP4 216.229.50.90. s=SIP Media Capabilities. c=IN IP4 216.229.118.100. t=0 0. m=audio 18212 RTP/AVP 18 101. a=rtpmap:18 G729/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=sendrecv.
# U 2004/11/17 14:59:59.705831 68.80.201.101:5060 -> 68.80.200.100:1063 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK20ba9258b87f741d. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. From: "Paul (1002)" sip:9990010001@216.229.127.60;user=phone;tag=4edd147cdac0025f. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. Contact: sip:4075551212@216.229.127.60:5060. Record-Route: sip:216.229.127.60:5060;lr. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay. Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO. Supported: timer. Content-Disposition: session;handling=required. Content-Type: application/sdp. Session-Expires: 240;refresher=uas. Content-Length: 241. . v=0. o=Sonus_UAC 57 25508 IN IP4 216.229.50.90. s=SIP Media Capabilities. c=IN IP4 68.80.201.101. t=0 0. m=audio 35230 RTP/AVP 18 101. a=rtpmap:18 G729/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=sendrecv. a=nortpproxy:yes.
# U 2004/11/17 14:59:59.715379 68.80.200.100:1063 -> 68.80.201.101:5060 ACK sip:4075551212@216.229.127.60:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.0.83;branch=z9hG4bK5d4c53e96e01ccae. Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Route: sip:216.229.127.60:5060;lr. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. Contact: sip:9990010001@192.168.0.83;user=phone. Proxy-Authorization: DIGEST username="9990010001", realm="sip.mycompany.com", algorithm=MD5, uri="sip:4075551212@216.229.127.60:5060", nonce="419baee2139477c22db6d0ec9a47b23003512431", response="7b83435f78bc60f5ced80304c7d54093". Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 ACK. User-Agent: Grandstream BT100 1.0.5.11. Max-Forwards: 70. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE. Content-Length: 0. .
# U 2004/11/17 14:59:59.716010 68.80.201.101:5060 -> 216.229.127.60:5060 ACK sip:216.229.127.60:5060;lr SIP/2.0. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Via: SIP/2.0/UDP 68.80.201.101;branch=0. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK5d4c53e96e01ccae. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. Contact: sip:9990010001@68.80.200.100:1063;user=phone. Proxy-Authorization: DIGEST username="9990010001", realm="sip.mycompany.com", algorithm=MD5, uri="sip:4075551212@216.229.127.60:5060", nonce="419baee2139477c22db6d0ec9a47b23003512431", response="7b83435f78bc60f5ced80304c7d54093". Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 ACK. User-Agent: Grandstream BT100 1.0.5.11. Max-Forwards: 16. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE. Content-Length: 0. .
# U 2004/11/17 15:00:00.705535 216.229.127.60:5060 -> 68.80.201.101:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 68.80.201.101;branch=z9hG4bK6628.1a8491a7.0. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK20ba9258b87f741d. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. From: "Paul (1002)" sip:9990010001@216.229.127.60;user=phone;tag=4edd147cdac0025f. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. Contact: sip:4075551212@216.229.50.90:4060. Record-Route: sip:216.229.127.60:5060;lr. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay. Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO. Supported: timer. Content-Disposition: session;handling=required. Content-Type: application/sdp. Session-Expires: 240;refresher=uas. Content-Length: 225. . v=0. o=Sonus_UAC 57 25508 IN IP4 216.229.50.90. s=SIP Media Capabilities. c=IN IP4 216.229.118.100. t=0 0. m=audio 18212 RTP/AVP 18 101. a=rtpmap:18 G729/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=sendrecv.
# U 2004/11/17 15:00:00.706510 68.80.201.101:5060 -> 68.80.200.100:1063 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK20ba9258b87f741d. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. From: "Paul (1002)" sip:9990010001@216.229.127.60;user=phone;tag=4edd147cdac0025f. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. Contact: sip:4075551212@216.229.127.60:5060. Record-Route: sip:216.229.127.60:5060;lr. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay. Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO. Supported: timer. Content-Disposition: session;handling=required. Content-Type: application/sdp. Session-Expires: 240;refresher=uas. Content-Length: 241. . v=0. o=Sonus_UAC 57 25508 IN IP4 216.229.50.90. s=SIP Media Capabilities. c=IN IP4 68.80.201.101. t=0 0. m=audio 35230 RTP/AVP 18 101. a=rtpmap:18 G729/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=sendrecv. a=nortpproxy:yes.
# U 2004/11/17 15:00:00.716029 68.80.200.100:1063 -> 68.80.201.101:5060 ACK sip:4075551212@216.229.127.60:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.0.83;branch=z9hG4bK71e568739c660904. Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Route: sip:216.229.127.60:5060;lr. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. Contact: sip:9990010001@192.168.0.83;user=phone. Proxy-Authorization: DIGEST username="9990010001", realm="sip.mycompany.com", algorithm=MD5, uri="sip:4075551212@216.229.127.60:5060", nonce="419baee2139477c22db6d0ec9a47b23003512431", response="7b83435f78bc60f5ced80304c7d54093". Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 ACK. User-Agent: Grandstream BT100 1.0.5.11. Max-Forwards: 70. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE. Content-Length: 0. .
# U 2004/11/17 15:00:00.716669 68.80.201.101:5060 -> 216.229.127.60:5060 ACK sip:216.229.127.60:5060;lr SIP/2.0. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Via: SIP/2.0/UDP 68.80.201.101;branch=0. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK71e568739c660904. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. Contact: sip:9990010001@68.80.200.100:1063;user=phone. Proxy-Authorization: DIGEST username="9990010001", realm="sip.mycompany.com", algorithm=MD5, uri="sip:4075551212@216.229.127.60:5060", nonce="419baee2139477c22db6d0ec9a47b23003512431", response="7b83435f78bc60f5ced80304c7d54093". Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 ACK. User-Agent: Grandstream BT100 1.0.5.11. Max-Forwards: 16. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE. Content-Length: 0. .
# U 2004/11/17 15:00:02.704680 216.229.127.60:5060 -> 68.80.201.101:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 68.80.201.101;branch=z9hG4bK6628.1a8491a7.0. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK20ba9258b87f741d. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. From: "Paul (1002)" sip:9990010001@216.229.127.60;user=phone;tag=4edd147cdac0025f. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. Contact: sip:4075551212@216.229.50.90:4060. Record-Route: sip:216.229.127.60:5060;lr. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay. Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO. Supported: timer. Content-Disposition: session;handling=required. Content-Type: application/sdp. Session-Expires: 240;refresher=uas. Content-Length: 225. . v=0. o=Sonus_UAC 57 25508 IN IP4 216.229.50.90. s=SIP Media Capabilities. c=IN IP4 216.229.118.100. t=0 0. m=audio 18212 RTP/AVP 18 101. a=rtpmap:18 G729/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=sendrecv.
# U 2004/11/17 15:00:02.705726 68.80.201.101:5060 -> 68.80.200.100:1063 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK20ba9258b87f741d. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. From: "Paul (1002)" sip:9990010001@216.229.127.60;user=phone;tag=4edd147cdac0025f. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. Contact: sip:4075551212@216.229.127.60:5060. Record-Route: sip:216.229.127.60:5060;lr. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay. Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO. Supported: timer. Content-Disposition: session;handling=required. Content-Type: application/sdp. Session-Expires: 240;refresher=uas. Content-Length: 241. . v=0. o=Sonus_UAC 57 25508 IN IP4 216.229.50.90. s=SIP Media Capabilities. c=IN IP4 68.80.201.101. t=0 0. m=audio 35230 RTP/AVP 18 101. a=rtpmap:18 G729/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=sendrecv. a=nortpproxy:yes.
# U 2004/11/17 15:00:02.715249 68.80.200.100:1063 -> 68.80.201.101:5060 ACK sip:4075551212@216.229.127.60:5060 SIP/2.0. Via: SIP/2.0/UDP 192.168.0.83;branch=z9hG4bK224b67d8d70043ad. Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Route: sip:216.229.127.60:5060;lr. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. Contact: sip:9990010001@192.168.0.83;user=phone. Proxy-Authorization: DIGEST username="9990010001", realm="sip.mycompany.com", algorithm=MD5, uri="sip:4075551212@216.229.127.60:5060", nonce="419baee2139477c22db6d0ec9a47b23003512431", response="7b83435f78bc60f5ced80304c7d54093". Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 ACK. User-Agent: Grandstream BT100 1.0.5.11. Max-Forwards: 70. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE. Content-Length: 0. .
# U 2004/11/17 15:00:02.715905 68.80.201.101:5060 -> 216.229.127.60:5060 ACK sip:216.229.127.60:5060;lr SIP/2.0. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Via: SIP/2.0/UDP 68.80.201.101;branch=0. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK224b67d8d70043ad. From: "Paul (1002)" sip:9990010001@sip.mycompany.com;user=phone;tag=4edd147cdac0025f. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. Contact: sip:9990010001@68.80.200.100:1063;user=phone. Proxy-Authorization: DIGEST username="9990010001", realm="sip.mycompany.com", algorithm=MD5, uri="sip:4075551212@216.229.127.60:5060", nonce="419baee2139477c22db6d0ec9a47b23003512431", response="7b83435f78bc60f5ced80304c7d54093". Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 ACK. User-Agent: Grandstream BT100 1.0.5.11. Max-Forwards: 16. Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE. Content-Length: 0. .
# U 2004/11/17 15:00:06.705724 216.229.127.60:5060 -> 68.80.201.101:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 68.80.201.101;branch=z9hG4bK6628.1a8491a7.0. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK20ba9258b87f741d. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. From: "Paul (1002)" sip:9990010001@216.229.127.60;user=phone;tag=4edd147cdac0025f. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. Contact: sip:4075551212@216.229.50.90:4060. Record-Route: sip:216.229.127.60:5060;lr. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay. Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO. Supported: timer. Content-Disposition: session;handling=required. Content-Type: application/sdp. Session-Expires: 240;refresher=uas. Content-Length: 225. . v=0. o=Sonus_UAC 57 25508 IN IP4 216.229.50.90. s=SIP Media Capabilities. c=IN IP4 216.229.118.100. t=0 0. m=audio 18212 RTP/AVP 18 101. a=rtpmap:18 G729/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=sendrecv.
# U 2004/11/17 15:00:06.705948 68.80.201.101:5060 -> 68.80.200.100:1063 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK20ba9258b87f741d. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. From: "Paul (1002)" sip:9990010001@216.229.127.60;user=phone;tag=4edd147cdac0025f. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. Contact: sip:4075551212@216.229.50.90:4060. Record-Route: sip:216.229.127.60:5060;lr. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay. Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO. Supported: timer. Content-Disposition: session;handling=required. Content-Type: application/sdp. Session-Expires: 240;refresher=uas. Content-Length: 225. . v=0. o=Sonus_UAC 57 25508 IN IP4 216.229.50.90. s=SIP Media Capabilities. c=IN IP4 216.229.118.100. t=0 0. m=audio 18212 RTP/AVP 18 101. a=rtpmap:18 G729/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=sendrecv.
#
#
#########
# U 2004/11/17 15:00:10.704340 216.229.127.60:5060 -> 68.80.201.101:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 68.80.201.101;branch=z9hG4bK6628.1a8491a7.0. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK20ba9258b87f741d. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. From: "Paul (1002)" sip:9990010001@216.229.127.60;user=phone;tag=4edd147cdac0025f. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. Contact: sip:4075551212@216.229.50.90:4060. Record-Route: sip:216.229.127.60:5060;lr. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay. Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO. Supported: timer. Content-Disposition: session;handling=required. Content-Type: application/sdp. Session-Expires: 240;refresher=uas. Content-Length: 225. . v=0. o=Sonus_UAC 57 25508 IN IP4 216.229.50.90. s=SIP Media Capabilities. c=IN IP4 216.229.118.100. t=0 0. m=audio 18212 RTP/AVP 18 101. a=rtpmap:18 G729/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=sendrecv.
# U 2004/11/17 15:00:10.704547 68.80.201.101:5060 -> 68.80.200.100:1063 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.0.83;rport=1063;received=68.80.200.100;branch=z9hG4bK20ba9258b87f741d. To: sip:14075551212@sip.mycompany.com;user=phone;tag=0bf5212d. From: "Paul (1002)" sip:9990010001@216.229.127.60;user=phone;tag=4edd147cdac0025f. Call-ID: aa31202374f54793@192.168.0.83. CSeq: 12010 INVITE. Contact: sip:4075551212@216.229.50.90:4060. Record-Route: sip:216.229.127.60:5060;lr. Record-Route: sip:68.80.201.101;ftag=4edd147cdac0025f;lr=on. Accept: multipart/mixed, application/sdp, application/isup, application/dtmf, application/dtmf-relay. Allow: OPTIONS, INVITE, CANCEL, ACK, BYE, PRACK, INFO. Supported: timer. Content-Disposition: session;handling=required. Content-Type: application/sdp. Session-Expires: 240;refresher=uas. Content-Length: 225. . v=0. o=Sonus_UAC 57 25508 IN IP4 216.229.50.90. s=SIP Media Capabilities. c=IN IP4 216.229.118.100. t=0 0. m=audio 18212 RTP/AVP 18 101. a=rtpmap:18 G729/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=sendrecv.