;tag=[call_number] To: composition-check Call-ID: [call_id] CSeq: 1 INVITE Contact: sip:sipp@[local_ip]:[local_port] Max-Forwards: 70 Subject: Performance Test Content-Type: application/sdp Accept: application/pidf+xml;q=0.3, application/pidf-diff+xml;q=0.7 Content-Length: [len] v=0 o=user1 53655765 2353687637 IN IP4 127.0.0.1 s=- c=IN IP4 [media_ip] t=0 0 m=audio [media_port] RTP/AVP 0 a=rtpmap:0 PCMU/8000 ]]> ;tag=[call_number] To: sut [peer_tag_param] Call-ID: [call_id] CSeq: 1 ACK [last_Contact] Route: [$2] Max-Forwards: 70 Subject: Performance Test Content-Length: 0 ]]> ;tag=[call_number] To: sut [peer_tag_param] Call-ID: [call_id] CSeq: 2 BYE Contact: sip:sipp@[local_ip]:[local_port] Route: [$2] Max-Forwards: 70 Subject: Performance Test Content-Length: 0 ]]>