;tag=[pid]SIPpTag00[call_number] To: Call-ID: NGCP%[field4 file="callee.csv" line=0]_sub%///[call_id] CSeq: 1 SUBSCRIBE Contact: Allow: INVITE,ACK,CANCEL,BYE,PRACK,INFO,UPDATE,OPTIONS,MESSAGE,NOTIFY,REFER Max-Forwards: 70 Expires: 20 Event: call-info Content-Length: [len] ]]> Content-Length: 0 ]]> ;tag=[pid]SIPpTag00[call_number] To: [field1 file="caller.csv" line=0] Call-ID: NGCP%[field4 file="callee.csv" line=0]_sub%///[call_id] CSeq: 2 SUBSCRIBE Contact: Allow: INVITE,ACK,CANCEL,BYE,PRACK,INFO,UPDATE,OPTIONS,MESSAGE,NOTIFY,REFER Max-Forwards: 70 Expires: 20 Event: call-info Content-Length: [len] ]]> Content-Length: 0 ]]> Content-Length: [len] ]]> ;tag=[pid]SIPpTag00[call_number] To: Call-ID: NGCP%[field4 file="callee.csv" line=0]_sub%///[call_id] CSeq: 1 SUBSCRIBE Contact: Allow: INVITE,ACK,CANCEL,BYE,PRACK,INFO,UPDATE,OPTIONS,MESSAGE,NOTIFY,REFER Max-Forwards: 70 Expires: 0 Event: call-info Content-Length: [len] ]]> Max-Forwards: 70 Content-Length: 0 ]]> ;tag=[pid]SIPpTag00[call_number] To: [field1 file="caller.csv" line=0] Call-ID: NGCP%[field4 file="callee.csv" line=0]_sub%///[call_id] CSeq: 2 SUBSCRIBE Contact: Allow: INVITE,ACK,CANCEL,BYE,PRACK,INFO,UPDATE,OPTIONS,MESSAGE,NOTIFY,REFER Max-Forwards: 70 Expires: 0 Event: call-info Content-Length: [len] ]]> Content-Length: 0 ]]>