Allow: INVITE,ACK,CANCEL,BYE,REGISTER,REFER,INFO,SUBSCRIBE,NOTIFY,PRACK,UPDATE,OPTIONS Content-Disposition: session; handling=required Content-Type: application/sdp Content-Length: [len] v=0 o=- 833252837 32403 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 8 101 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=maxptime:20 a=sendrecv ]]> Allow: INVITE,ACK,CANCEL,BYE,REGISTER,REFER,INFO,SUBSCRIBE,NOTIFY,PRACK,UPDATE,OPTIONS Supported: replaces Content-Disposition: session; handling=required Content-Type: application/sdp Content-Length: [len] v=0 o=- 833252837 32403 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 8 101 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=maxptime:20 a=sendrecv ]]> ;tag=[pid]SIPpTag01[call_number] To[$remote_from] [last_Call-ID:] CSeq: 31993 INVITE Contact: Content-Type: application/sdp Content-Length: [len] v=0 o=- 833252837 32404 IN IP[local_ip_type] [local_ip] s=- c=IN IP[media_ip_type] [media_ip] t=0 0 m=audio [media_port] RTP/AVP 0 101 a=rtpmap:0 PCMU/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=maxptime:20 a=sendrecv ]]> ;tag=[pid]SIPpTag01[call_number] To[$remote_from] [last_Call-ID:] CSeq: 31993 ACK Contact: Max-Forwards: 70 ]]> ;tag=[pid]SIPpTag01[call_number] To[$remote_from] [last_Call-ID:] CSeq: 31994 INVITE Contact: Content-Type: application/sdp Content-Length: [len] v=0 o=- 833252837 32405 IN IP[local_ip_type] [local_ip] s=- c=IN IP[media_ip_type] [media_ip] t=0 0 m=audio [media_port] RTP/AVP 8 101 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=maxptime:20 a=sendrecv ]]> ;tag=[pid]SIPpTag01[call_number] To[$remote_from] [last_Call-ID:] CSeq: 31994 ACK Contact: Max-Forwards: 70 ]]> Content-Length: 0 ]]>