;tag=[call_number] To: Call-ID: [call_id] CSeq: [cseq] REGISTER Contact: sip:[field0]@[local_ip]:[local_port] Max-Forwards: 10 Expires: 120 User-Agent: Cisco-CP7962G/9.4.2 Content-Length: 0 ]]> ;tag=[call_number] To: Call-ID: [call_id] CSeq: [cseq] REGISTER Contact: sip:[field0]@[local_ip]:[local_port] [field2] Max-Forwards: 10 Expires: 120 User-Agent: Cisco-CP7962G/9.4.2 Content-Length: 0 ]]> ;tag=[call_number] To: Call-ID: [call_id] CSeq: [cseq] SUBSCRIBE User-Agent: Cisco-CP7962G/9.4.2 Event: presence Accept: application/xpidf+xml Expires: 3000 Max-Forwards: 70 Contact: Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,REGISTER,UPDATE,SUBSCRIBE Content-Length: 0 ]]> ;tag=[call_number] To: Call-ID: [call_id] CSeq: [cseq] SUBSCRIBE User-Agent: Cisco-CP7962G/9.4.2 Event: presence Accept: application/xpidf+xml Max-Forwards: 70 Contact: [field2] Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,REGISTER,UPDATE,SUBSCRIBE Content-Length: 0 ]]> ;tag=[call_number] To: Call-ID: [call_id] CSeq: 1 INVITE Contact: Content-Type: application/sdp Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER Max-Forwards: 70 User-Agent: SIPp Allow-Events: talk,hold,conference,refer,check-sync Content-Length: [len] v=0 o=- 20102 20102 IN IP[local_ip_type] [local_ip] s=SDP data c=IN IP[media_ip_type] [media_ip] t=0 0 m=audio [media_port] RTP/AVP 0 8 18 9 101 a=rtpmap:0 PCMU/8000 a=rtpmap:8 PCMA/8000 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:9 G722/8000 a=fmtp:101 0-15 a=rtpmap:101 telephone-event/8000 a=ptime:20 a=sendrecv ]]>