;tag=[pid]SIPpTag00[call_number] To: Call-ID: NGCP%[field4 file="callee.csv" line=0]%///[call_id] CSeq: 1 INVITE Contact: sip:[field0 file="caller.csv" line=3]@[local_ip]:[local_port] Max-Forwards: 70 Content-Type: application/sdp Content-Length: [len] v=0 o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip] s=- c=IN IP[media_ip_type] [media_ip] t=0 0 m=audio [media_port] RTP/AVP 8 a=rtpmap:8 PCMA/8000 a=ptime:50 ]]> ;tag=[pid]SIPpTag00[call_number] To: [peer_tag_param] Call-ID: NGCP%[field4 file="callee.csv" line=0]%///[call_id] CSeq: 1 ACK Contact: sip:[field0 file="caller.csv" line=3]@[local_ip]:[local_port] Max-Forwards: 70 Content-Length: 0 ]]> ;tag=[pid]SIPpTag00[call_number] To: Call-ID: NGCP%[field4 file="callee.csv" line=0]%///[call_id] CSeq: 2 INVITE Contact: sip:[field0 file="caller.csv" line=3]@[local_ip]:[local_port] Max-Forwards: 70 [field1 file="caller.csv" line=3] Content-Type: application/sdp Content-Length: [len] v=0 o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip] s=- c=IN IP[media_ip_type] [media_ip] t=0 0 m=audio [media_port] RTP/AVP 8 a=rtpmap:8 PCMA/8000 a=ptime:50 ]]> ;tag=[pid]SIPpTag00[call_number] To: [peer_tag_param] Call-ID: NGCP%[field4 file="callee.csv" line=0]%///[call_id] CSeq: 2 ACK Contact: sip:[field0 file="caller.csv" line=3]@[local_ip]:[local_port] Max-Forwards: 70 Content-Length: 0 ]]>