Content-Length: 0 ]]> Content-Type: application/sdp Content-Length: [len] v=0 o=OXE 1601361131 1601361131 IN IP[local_ip_type] [local_ip] s=abs c=IN IP[media_ip_type] [media_ip] t=0 0 m=audio [media_port] RTP/AVP 8 101 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=direction:both a=silenceSupp:off - - - - a=ptime:20 a=sendrecv ]]> ;tag=[pid]SIPpTag01[call_number] To: ;tag=[$3] [last_Call-ID:] [routes] CSeq: [cseq] INVITE Contact: Max-Forwards: 70 Content-Type: application/sdp Content-Length: [len] v=0 o=OXE 1601361131 1601361132 IN IP[local_ip_type] [local_ip] s=abs c=IN IP[media_ip_type] [media_ip] t=0 0 m=audio [media_port] RTP/AVP 18 101 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:101 telephone-event/8000 a=sendrecv a=maxptime:40 a=ptime:20 ]]> ;tag=[pid]SIPpTag01[call_number] To: ;tag=[$3] [last_Call-ID:] [routes] CSeq: [cseq] ACK Contact: Max-Forwards: 70 Content-Length: 0 ]]> Content-Length: [len] ]]>