.C. Maxwell <sip:james.maxwell@kings.cambridge.edu.uk> ;tag=4 To: <sip:faraday@effect.org;user=ip>;tag=1024 Call-ID: mNjdwWjkBfWrd@7.9.18.12 CSeq: 54 INVITE INVITE sip: :faraday@lab.royalsoc.gb SIP/2.0 Via: SIP/2.0/UDP 7.9.18.12:60000; branch=z9hG4bk1 Call Flow Examples Max-Forwards: 70 From: J.C. Maxwell <sip:james.maxwell@kings.cambridge.edu.uk> ;tag=5 To: <sip:faraday@effect.org;user=ip> <Tag is not copied Call-ID: mNjdwWjkBfWrd@7.9.18.12 <Call-ID unchanged CSeq: 55 INVITE <CSeq incremented Contact: <sip:james.maxwell@kings.cambridge.edu.uk> Content-Type: application/sdp Content-Length: 129 o=max 2890844521 2890844521 IN IP4 7.9.18.12 t=0 0 C=IN IP4 7.9.18.12 m=audio 32166 RTP/AVP 4 a=rtpmap: 4 DVI/8000 INVITE sip:+44.555.1212@sip-phone.effect.org;user=phone SIP/2.0 Via: SIP/2.0/UDP 7.9.18.12:60000;branch=z9hG4bk2 Max-Forwards: 70 From: J.C. Maxwell k<sip:james.maxwell@kings.cambridge.edu.uk> ;tag=5 To: <sip:faraday@effect.org;user=ip> Call-ID: mNjdwWjkBfWrd@7.9.18.12 CSeq: 55 INVITE Contact: <sip:james.maxwell@kings.cambridge.edu.uk> Content-Type: application/sdp Content-Length: 129 o=max 2890844521 2890844521 IN IP4 7.9.18.12 t=0 0 C=IN IP4 7.9.18.12 m=audio 32166 RTP/AVP 4 a=rtpmap 4 DVI/8000 INVITE sip:faraday@commonroom.club.gb SIP/2.0 Via: SIP/2.0/UDP 7.9.18.12:60000;branch=z9hG4bk3 Max-Forwards: 70 From: J.C. Maxwell ksip:james.maxwell@kings.cambridge.edu.uk> ;tag=5 To: <sip:faraday@effect.org;user=ip> Call-ID: mNjdwWjkBfWrd@7.9.18.12 CSeq: 55 INVITE Contact: <sip:james.maxwell@kings.cambridge.edu.uk> Content-Type: application/sdp Content-Length: 129 o=max 2890844521 2890844521 IN IP4 7.9.18.12 SIP: Understanding the Session Initiation Protocol t=0 0 C=IN IP4 7.9.18.12 m=audio 32166 RTP/AVP 4 a=rtpmap: 4 DVI/8000 SIP/2.0 404 The member you have requested is not available Via: SIP/2.0/UDP .9.18.12:60000;branch=z9hG4bk1 From: J.C. Maxwell k<sip:james.maxwell@kings.cambridge.edu.uk> ;tag=5 To: <sip:faraday@effect.org;user=ip>;tag=f6 Call-ID: mNjdwWjkBfWrd@7.9.18.12 CSeq: 55 INVITE ACK sip: :faraday@lab.roy