U 2013/09/18 18:09:41.036900 10.3.25.10:5060 -> 10.1.0.19:5060 INVITE sip:echo@10.1.0.19:5060;transport=udp SIP/2.0. Via: SIP/2.0/UDP 10.3.25.10:5060;branch=z9hG4bK250. From: ;tag=24417923471779367133. To: ;. Call-ID: 24@10.3.25.10. CSeq: 2 INVITE. Max-Forwards: 70. Session-Expires: 90;refresher=uac. Min-SE: 90. Supported: timer. Contact: . Content-Type: application/sdp. Content-Length: 209. . v=0. o=111 843670094 843670094 IN IP4 10.3.25.10. s=-. c=IN IP4 10.3.25.10. t=0 0. a=sendrecv. m=audio 6000 RTP/AVP 8 101. a=rtpmap:0 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=ptime:20. U 2013/09/18 18:09:41.039296 10.1.0.19:5060 -> 10.3.25.10:5060 SIP/2.0 100 Trying. Via: SIP/2.0/UDP 10.3.25.10:5060;branch=z9hG4bK250;received=10.3.25.10. From: ;tag=24417923471779367133. To: ;. Call-ID: 24@10.3.25.10. CSeq: 2 INVITE. Server: Asterisk PBX 1.8.23.1. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH. Supported: replaces, timer. Session-Expires: 90;refresher=uac. Contact: . Content-Length: 0. . U 2013/09/18 18:09:41.043531 10.1.0.19:5060 -> 10.3.25.10:5060 SIP/2.0 180 Ringing. Via: SIP/2.0/UDP 10.3.25.10:5060;branch=z9hG4bK250;received=10.3.25.10. From: ;tag=24417923471779367133. To: ;;tag=as731cd300. Call-ID: 24@10.3.25.10. CSeq: 2 INVITE. Server: Asterisk PBX 1.8.23.1. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH. Supported: replaces, timer. Session-Expires: 90;refresher=uac. Contact: . Content-Length: 0. . U 2013/09/18 18:10:01.064892 10.1.0.19:5060 -> 212.79.111.155:5060 INVITE sip:echo@iptel.org SIP/2.0. Via: SIP/2.0/UDP 10.1.0.19:5060;branch=z9hG4bK226e38e9. Max-Forwards: 70. From: "infromclient" ;tag=as1672d8e0. To: . Contact: . Call-ID: 659653691ee49fc173fd87150ca8f446@10.1.0.19:5060. CSeq: 102 INVITE. User-Agent: Asterisk PBX 1.8.23.1. Date: Wed, 18 Sep 2013 16:10:01 GMT. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH. Supported: replaces, timer. Content-Type: application/sdp. Content-Length: 258. . v=0. o=root 1895477727 1895477727 IN IP4 10.1.0.19. s=Asterisk PBX 1.8.23.1. c=IN IP4 10.1.0.19. t=0 0. m=audio 18628 RTP/AVP 8 101. a=rtpmap:8 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=silenceSupp:off - - - -. a=ptime:20. a=sendrecv. U 2013/09/18 18:10:01.091025 212.79.111.155:5060 -> 10.1.0.19:5060 SIP/2.0 100 Connecting. Via: SIP/2.0/UDP 10.1.0.19:5060;branch=z9hG4bK226e38e9;received=1.2.3.4. From: "infromclient" ;tag=as1672d8e0. To: . Call-ID: 659653691ee49fc173fd87150ca8f446@10.1.0.19:5060. CSeq: 102 INVITE. Contact: . Content-Length: 0. . U 2013/09/18 18:10:01.175017 212.79.111.155:5060 -> 10.1.0.19:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 10.1.0.19:5060;branch=z9hG4bK226e38e9;received=1.2.3.4. From: "infromclient" ;tag=as1672d8e0. To: ;tag=08B58658-5239D05900013367-EC64A700. Call-ID: 659653691ee49fc173fd87150ca8f446@10.1.0.19:5060. CSeq: 102 INVITE. Server: Sip Express Media Server (1.4.2-10-ga03278d (x86/linux)). Contact: . Content-Type: application/sdp. Content-Length: 221. . v=0. o=- 88702433 697236295 IN IP4 212.79.111.155. s=-. c=IN IP4 212.79.111.155. t=0 0. m=audio 10710 RTP/AVP 8 101. a=rtpmap:8 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=sendrecv. a=direction:both. U 2013/09/18 18:10:01.175681 10.1.0.19:5060 -> 212.79.111.155:5060 ACK sip:212.79.111.155:5060 SIP/2.0. Via: SIP/2.0/UDP 10.1.0.19:5060;branch=z9hG4bK3a90fe4d. Max-Forwards: 70. From: "infromclient" ;tag=as1672d8e0. To: ;tag=08B58658-5239D05900013367-EC64A700. Contact: . Call-ID: 659653691ee49fc173fd87150ca8f446@10.1.0.19:5060. CSeq: 102 ACK. User-Agent: Asterisk PBX 1.8.23.1. Content-Length: 0. . U 2013/09/18 18:10:01.178600 10.1.0.19:5060 -> 10.3.25.10:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 10.3.25.10:5060;branch=z9hG4bK250;received=10.3.25.10. From: ;tag=24417923471779367133. To: ;;tag=as731cd300. Call-ID: 24@10.3.25.10. CSeq: 2 INVITE. Server: Asterisk PBX 1.8.23.1. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH. Supported: replaces, timer. Session-Expires: 90;refresher=uac. Contact: . Content-Type: application/sdp. Require: timer. Content-Length: 258. . v=0. o=root 1012370596 1012370596 IN IP4 10.1.0.19. s=Asterisk PBX 1.8.23.1. c=IN IP4 10.1.0.19. t=0 0. m=audio 15658 RTP/AVP 0 101. a=rtpmap:0 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=silenceSupp:off - - - -. a=ptime:20. a=sendrecv. U 2013/09/18 18:10:01.182179 10.3.25.10:5060 -> 10.1.0.19:5060 ACK sip:echo@10.1.0.19:5060;transport=udp SIP/2.0. Via: SIP/2.0/UDP 10.3.25.10:5060;branch=z9hG4bK253. From: ;tag=24417923471779367133. To: ;tag=as731cd300. Call-ID: 24@10.3.25.10. CSeq: 2 ACK. Max-Forwards: 70. Contact: . Content-Length: 0. . U 2013/09/18 18:10:41.041159 10.1.0.19:5060 -> 212.79.111.155:5060 BYE sip:212.79.111.155:5060 SIP/2.0. Via: SIP/2.0/UDP 10.1.0.19:5060;branch=z9hG4bK1d8b68a5. Max-Forwards: 70. From: "infromclient" ;tag=as1672d8e0. To: ;tag=08B58658-5239D05900013367-EC64A700. Call-ID: 659653691ee49fc173fd87150ca8f446@10.1.0.19:5060. CSeq: 103 BYE. User-Agent: Asterisk PBX 1.8.23.1. X-Asterisk-HangupCause: Normal Clearing. X-Asterisk-HangupCauseCode: 16. Content-Length: 0. . U 2013/09/18 18:10:41.042030 10.1.0.19:5060 -> 10.3.25.10:5060 BYE sip:infromclient@10.3.25.10:5060;transport=UDP SIP/2.0. Via: SIP/2.0/UDP 10.1.0.19:5060;branch=z9hG4bK322cab2e. Max-Forwards: 70. From: ;;tag=as731cd300. To: ;tag=24417923471779367133. Call-ID: 24@10.3.25.10. CSeq: 102 BYE. User-Agent: Asterisk PBX 1.8.23.1. X-Asterisk-HangupCause: Normal Clearing. X-Asterisk-HangupCauseCode: 16. Content-Length: 0. . U 2013/09/18 18:10:41.045183 10.3.25.10:5060 -> 10.1.0.19:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 10.1.0.19:5060;branch=z9hG4bK322cab2e. From: ;;tag=as731cd300. To: ;tag=24417923471779367133. Call-ID: 24@10.3.25.10. CSeq: 102 BYE. Contact: . Content-Length: 0. . U 2013/09/18 18:10:41.084122 212.79.111.155:5060 -> 10.1.0.19:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 10.1.0.19:5060;branch=z9hG4bK1d8b68a5;received=1.2.3.4. From: "infromclient" ;tag=as1672d8e0. To: ;tag=08B58658-5239D05900013367-EC64A700. Call-ID: 659653691ee49fc173fd87150ca8f446@10.1.0.19:5060. CSeq: 103 BYE. Server: Sip Express Media Server (1.4.2-10-ga03278d (x86/linux)). Content-Length: 0. .