# U ata:5060 -> ser:5060 INVITE sip:12345%230312299998@ser:5060 SIP/2.0. Via: SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. Content-Length: 230. To: sip:12345%230312299998@ser:5060. From: victor-sip-line1 ;tag=8cd4af6254d7f35. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. CSeq: 613426530 INVITE. Route: . Supported: timer. Min-SE: 1800. Session-Expires: 3600. Allow: INVITE, ACK, BYE, CANCEL, REFER, NOTIFY. Content-Type: application/sdp. Contact: victor-sip-line1 . Supported: replaces. User-Agent: MxSipApp/5.0.7.59 MxSF/v3.2.7.44. . v=0. o=MxSIP 1161439858835651694 777463051104361766 IN IP4 ata. s=-. c=IN IP4 ata. t=0 0. a=sendrecv. m=audio 5004 RTP/AVP 4 8 111. a=rtpmap:4 G723/8000. a=rtpmap:8 PCMA/8000. a=rtpmap:111 X-nt-inforeq/8000. # U ser:5060 -> ata:5060 SIP/2.0 100 trying -- your call is important to us. Via: SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. To: sip:12345%230312299998@ser:5060. From: victor-sip-line1 ;tag=8cd4af6254d7f35. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. CSeq: 613426530 INVITE. Server: Sip EXpress router (0.9.4 (i386/linux)). Content-Length: 0. Warning: 392 ser:5060 "Noisy feedback tells: pid=18625 req_src_ip=ata req_src_port=5060 in_uri=sip:12345%230312299998@ser:5060 out_uri=sip:12345%230312299998@gateway1:5060 via_cnt==1". . # U ser2:5060 -> gateway1:5060 INVITE sip:12345%230312299998@gateway1:5060 SIP/2.0. Max-Forwards: 10. Record-Route: . Record-Route: . Via: SIP/2.0/UDP ser2;branch=z9hG4bKd333.8a811104.0. Via: SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. Content-Length: 230. To: sip:12345%230312299998@ser:5060. From: victor-sip-line1 ;tag=8cd4af6254d7f35. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. CSeq: 613426530 INVITE. Supported: timer. Min-SE: 1800. Session-Expires: 3600. Allow: INVITE, ACK, BYE, CANCEL, REFER, NOTIFY. Content-Type: application/sdp. Contact: victor-sip-line1 . Supported: replaces. User-Agent: MxSipApp/5.0.7.59 MxSF/v3.2.7.44. P-hint: main PSTN route. . v=0. o=MxSIP 1161439858835651694 777463051104361766 IN IP4 ata. s=-. c=IN IP4 ata. t=0 0. a=sendrecv. m=audio 5004 RTP/AVP 4 8 111. a=rtpmap:4 G723/8000. a=rtpmap:8 PCMA/8000. a=rtpmap:111 X-nt-inforeq/8000. # U gateway1:5060 -> ser2:5060 SIP/2.0 100 Trying. Via: SIP/2.0/UDP ser2;branch=z9hG4bKd333.8a811104.0,SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. From: victor-sip-line1 ;tag=8cd4af6254d7f35. To: sip:12345%230312299998@ser:5060;tag=95509674-1ABE. Date: Thu, 13 Oct 2005 08:37:05 GMT. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. Server: Cisco-SIPGateway/IOS-12.x. CSeq: 613426530 INVITE. Allow-Events: telephone-event. Content-Length: 0. . # U gateway1:5060 -> ser2:5060 SIP/2.0 183 Session Progress. Via: SIP/2.0/UDP ser2;branch=z9hG4bKd333.8a811104.0,SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. From: victor-sip-line1 ;tag=8cd4af6254d7f35. To: sip:12345%230312299998@ser:5060;tag=95509674-1ABE. Date: Thu, 13 Oct 2005 08:37:05 GMT. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. Server: Cisco-SIPGateway/IOS-12.x. CSeq: 613426530 INVITE. Allow-Events: telephone-event. Contact: . Record-Route: ,. Content-Disposition: session;handling=required. Content-Type: application/sdp. Content-Length: 206. . v=0. o=CiscoSystemsSIP-GW-UserAgent 6300 8439 IN IP4 gateway1. s=SIP Call. c=IN IP4 gateway1. t=0 0. m=audio 19264 RTP/AVP 4. c=IN IP4 gateway1. a=rtpmap:4 G723/8000. a=fmtp:4 annexa=yes. # U ser:5060 -> ata:5060 SIP/2.0 183 Session Progress. Via: SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. From: victor-sip-line1 ;tag=8cd4af6254d7f35. To: sip:12345%230312299998@ser:5060;tag=95509674-1ABE. Date: Thu, 13 Oct 2005 08:37:05 GMT. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. Server: Cisco-SIPGateway/IOS-12.x. CSeq: 613426530 INVITE. Allow-Events: telephone-event. Contact: . Record-Route: ,. Content-Disposition: session;handling=required. Content-Type: application/sdp. Content-Length: 206. . v=0. o=CiscoSystemsSIP-GW-UserAgent 6300 8439 IN IP4 gateway1. s=SIP Call. c=IN IP4 gateway1. t=0 0. m=audio 19264 RTP/AVP 4. c=IN IP4 gateway1. a=rtpmap:4 G723/8000. a=fmtp:4 annexa=yes. # U gateway1:5060 -> ser2:5060 SIP/2.0 180 Ringing. Via: SIP/2.0/UDP ser2;branch=z9hG4bKd333.8a811104.0,SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. From: victor-sip-line1 ;tag=8cd4af6254d7f35. To: sip:12345%230312299998@ser:5060;tag=95509674-1ABE. Date: Thu, 13 Oct 2005 08:37:05 GMT. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. Server: Cisco-SIPGateway/IOS-12.x. CSeq: 613426530 INVITE. Allow-Events: telephone-event. Contact: . Record-Route: ,. Content-Length: 0. . # U ser:5060 -> ata:5060 SIP/2.0 180 Ringing. Via: SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. From: victor-sip-line1 ;tag=8cd4af6254d7f35. To: sip:12345%230312299998@ser:5060;tag=95509674-1ABE. Date: Thu, 13 Oct 2005 08:37:05 GMT. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. Server: Cisco-SIPGateway/IOS-12.x. CSeq: 613426530 INVITE. Allow-Events: telephone-event. Contact: . Record-Route: ,. Content-Length: 0. . # U ata:5060 -> ser:5060 CANCEL sip:12345%230312299998@ser:5060 SIP/2.0. Via: SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. Content-Length: 0. To: sip:12345%230312299998@ser:5060. From: victor-sip-line1 ;tag=8cd4af6254d7f35. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. CSeq: 613426530 CANCEL. Route: . Supported: timer. Supported: replaces. User-Agent: MxSipApp/5.0.7.59 MxSF/v3.2.7.44. . # U ser2:5060 -> gateway1:5060 CANCEL sip:12345%230312299998@gateway1:5060 SIP/2.0. Max-Forwards: 10. Record-Route: . Record-Route: . Via: SIP/2.0/UDP ser2;branch=z9hG4bKd333.8a811104.0. Via: SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. Content-Length: 0. To: sip:12345%230312299998@ser:5060. From: victor-sip-line1 ;tag=8cd4af6254d7f35. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. CSeq: 613426530 CANCEL. Supported: timer. Supported: replaces. User-Agent: MxSipApp/5.0.7.59 MxSF/v3.2.7.44. P-hint: main PSTN route. . # U ser:5060 -> ata:5060 SIP/2.0 200 canceling. Via: SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. To: sip:12345%230312299998@ser:5060;tag=a6a1c5f60faecf035a1ae5b6e96e979a-7882. From: victor-sip-line1 ;tag=8cd4af6254d7f35. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. CSeq: 613426530 CANCEL. Server: Sip EXpress router (0.9.4 (i386/linux)). Content-Length: 0. Warning: 392 ser:5060 "Noisy feedback tells: pid=18615 req_src_ip=ata req_src_port=5060 in_uri=sip:12345%230312299998@ser:5060 out_uri=sip:12345%230312299998@gateway1:5060 via_cnt==1". . # U gateway1:5060 -> ser2:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP ser2;branch=z9hG4bKd333.8a811104.0,SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. From: victor-sip-line1 ;tag=8cd4af6254d7f35. To: sip:12345%230312299998@ser:5060. Date: Thu, 13 Oct 2005 08:37:18 GMT. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. Content-Length: 0. CSeq: 613426530 CANCEL. . # U gateway1:5060 -> ser2:5060 SIP/2.0 487 Request Cancelled. Via: SIP/2.0/UDP ser2;branch=z9hG4bKd333.8a811104.0,SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. From: victor-sip-line1 ;tag=8cd4af6254d7f35. To: sip:12345%230312299998@ser:5060;tag=95509674-1ABE. Date: Thu, 13 Oct 2005 08:37:18 GMT. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. Server: Cisco-SIPGateway/IOS-12.x. CSeq: 613426530 INVITE. Allow-Events: telephone-event. Content-Length: 0. . # U ser2:5060 -> gateway1:5060 ACK sip:12345%230312299998@gateway1:5060 SIP/2.0. Via: SIP/2.0/UDP ser2;branch=z9hG4bKd333.8a811104.0. From: victor-sip-line1 ;tag=8cd4af6254d7f35. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. To: sip:12345%230312299998@ser:5060;tag=95509674-1ABE. CSeq: 613426530 ACK. Route: . User-Agent: Sip EXpress router(0.9.4 (i386/linux)). Content-Length: 0. . # U ser2:5060 -> gateway2:5060 INVITE sip:12345%230312299998@gateway2:5060 SIP/2.0. Max-Forwards: 10. Record-Route: . Record-Route: . Via: SIP/2.0/UDP ser2;branch=z9hG4bKd333.8a811104.1. Via: SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. Content-Length: 230. To: sip:12345%230312299998@ser:5060. From: victor-sip-line1 ;tag=8cd4af6254d7f35. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. CSeq: 613426530 INVITE. Supported: timer. Min-SE: 1800. Session-Expires: 3600. Allow: INVITE, ACK, BYE, CANCEL, REFER, NOTIFY. Content-Type: application/sdp. Contact: victor-sip-line1 . Supported: replaces. User-Agent: MxSipApp/5.0.7.59 MxSF/v3.2.7.44. P-hint: main PSTN route. P-hint: backup PSTN route. . v=0. o=MxSIP 1161439858835651694 777463051104361766 IN IP4 ata. s=-. c=IN IP4 ata. t=0 0. a=sendrecv. m=audio 5004 RTP/AVP 4 8 111. a=rtpmap:4 G723/8000. a=rtpmap:8 PCMA/8000. a=rtpmap:111 X-nt-inforeq/8000. # U gateway2:5060 -> ser2:5060 SIP/2.0 100 Trying. Via: SIP/2.0/UDP ser2;branch=z9hG4bKd333.8a811104.1,SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. From: victor-sip-line1 ;tag=8cd4af6254d7f35. To: sip:12345%230312299998@ser:5060;tag=8B304160-442. Date: Thu, 13 Oct 2005 08:37:18 GMT. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. Server: Cisco-SIPGateway/IOS-12.x. CSeq: 613426530 INVITE. Allow-Events: telephone-event. Content-Length: 0. . # U gateway2:5060 -> ser2:5060 SIP/2.0 183 Session Progress. Via: SIP/2.0/UDP ser2;branch=z9hG4bKd333.8a811104.1,SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. From: victor-sip-line1 ;tag=8cd4af6254d7f35. To: sip:12345%230312299998@ser:5060;tag=8B304160-442. Date: Thu, 13 Oct 2005 08:37:18 GMT. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. Server: Cisco-SIPGateway/IOS-12.x. CSeq: 613426530 INVITE. Allow-Events: telephone-event. Contact: . Record-Route: ,. Content-Disposition: session;handling=required. Content-Type: application/sdp. Content-Length: 206. . v=0. o=CiscoSystemsSIP-GW-UserAgent 4972 1735 IN IP4 gateway2. s=SIP Call. c=IN IP4 gateway2. t=0 0. m=audio 17972 RTP/AVP 4. c=IN IP4 gateway2. a=rtpmap:4 G723/8000. a=fmtp:4 annexa=yes. # U ser:5060 -> ata:5060 SIP/2.0 183 Session Progress. Via: SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. From: victor-sip-line1 ;tag=8cd4af6254d7f35. To: sip:12345%230312299998@ser:5060;tag=8B304160-442. Date: Thu, 13 Oct 2005 08:37:18 GMT. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. Server: Cisco-SIPGateway/IOS-12.x. CSeq: 613426530 INVITE. Allow-Events: telephone-event. Contact: . Record-Route: ,. Content-Disposition: session;handling=required. Content-Type: application/sdp. Content-Length: 206. . v=0. o=CiscoSystemsSIP-GW-UserAgent 4972 1735 IN IP4 gateway2. s=SIP Call. c=IN IP4 gateway2. t=0 0. m=audio 17972 RTP/AVP 4. c=IN IP4 gateway2. a=rtpmap:4 G723/8000. a=fmtp:4 annexa=yes. # U gateway2:5060 -> ser2:5060 SIP/2.0 180 Ringing. Via: SIP/2.0/UDP ser2;branch=z9hG4bKd333.8a811104.1,SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. From: victor-sip-line1 ;tag=8cd4af6254d7f35. To: sip:12345%230312299998@ser:5060;tag=8B304160-442. Date: Thu, 13 Oct 2005 08:37:18 GMT. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. Server: Cisco-SIPGateway/IOS-12.x. CSeq: 613426530 INVITE. Allow-Events: telephone-event. Contact: . Record-Route: ,. Content-Length: 0. . # U ser:5060 -> ata:5060 SIP/2.0 180 Ringing. Via: SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. From: victor-sip-line1 ;tag=8cd4af6254d7f35. To: sip:12345%230312299998@ser:5060;tag=8B304160-442. Date: Thu, 13 Oct 2005 08:37:18 GMT. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. Server: Cisco-SIPGateway/IOS-12.x. CSeq: 613426530 INVITE. Allow-Events: telephone-event. Contact: . Record-Route: ,. Content-Length: 0. . # U gateway2:5060 -> ser2:5060 SIP/2.0 486 Busy here. Via: SIP/2.0/UDP ser2;branch=z9hG4bKd333.8a811104.1,SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. From: victor-sip-line1 ;tag=8cd4af6254d7f35. To: sip:12345%230312299998@ser:5060;tag=8B304160-442. Date: Thu, 13 Oct 2005 08:37:18 GMT. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. Server: Cisco-SIPGateway/IOS-12.x. CSeq: 613426530 INVITE. Allow-Events: telephone-event. Content-Length: 0. . # U ser2:5060 -> gateway2:5060 ACK sip:12345%230312299998@gateway2:5060 SIP/2.0. Via: SIP/2.0/UDP ser2;branch=z9hG4bKd333.8a811104.1. From: victor-sip-line1 ;tag=8cd4af6254d7f35. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. To: sip:12345%230312299998@ser:5060;tag=8B304160-442. CSeq: 613426530 ACK. Route: . User-Agent: Sip EXpress router(0.9.4 (i386/linux)). Content-Length: 0. . # U ser:5060 -> ata:5060 SIP/2.0 486 Busy here. Via: SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. From: victor-sip-line1 ;tag=8cd4af6254d7f35. To: sip:12345%230312299998@ser:5060;tag=8B304160-442. Date: Thu, 13 Oct 2005 08:37:18 GMT. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. Server: Cisco-SIPGateway/IOS-12.x. CSeq: 613426530 INVITE. Allow-Events: telephone-event. Content-Length: 0. . # U ata:5060 -> ser:5060 ACK sip:12345%230312299998@ser:5060 SIP/2.0. Via: SIP/2.0/UDP ata:5060;branch=z9hG4bK5ff8a4489. Content-Length: 0. To: sip:12345%230312299998@ser:5060;tag=8B304160-442. From: victor-sip-line1 ;tag=8cd4af6254d7f35. Call-ID: 82e11618a9116e2353f0e5904525db55@ser. CSeq: 613426530 ACK. Route: . User-Agent: MxSipApp/5.0.7.59 MxSF/v3.2.7.44. .