;tag=[pid]SIPpTag00[call_number] To: Call-ID: NGCP%[field4 file="callee.csv" line=1]_sub%///[call_id] CSeq: 30 SUBSCRIBE Contact: Allow: INVITE,ACK,CANCEL,BYE,PRACK,INFO,UPDATE,OPTIONS,MESSAGE,NOTIFY,REFER Call-Info: ;appearance-index=1 Max-Forwards: 70 Expires: 20 Event: line-seize Content-Length: [len] ]]> Content-Length: 0 ]]> ;tag=[pid]SIPpTag00[call_number] To: [field1 file="caller.csv" line=1] Call-ID: NGCP%[field4 file="callee.csv" line=1]_sub%///[call_id] CSeq: 31 SUBSCRIBE Contact: Allow: INVITE,ACK,CANCEL,BYE,PRACK,INFO,UPDATE,OPTIONS,MESSAGE,NOTIFY,REFER Call-Info: ;appearance-index=1 Max-Forwards: 70 Expires: 20 Event: line-seize Content-Length: [len] ]]> Content-Length: 0 ]]>