e sip:babbage@analyticalsoc.org>;tag=9382 To: <sip:ada@language.org>;tag=34q4356g Call-ID: E6-32-9a-34-91-e7@analyticalsoc.org CSeq: 1 INVITE Proxy-Authenticate: Digest <Authentication realm="language.org", challenge nonce="9c8e88df84f1cec4341ae6e5a359" opaque=" ", stale=FALSE, algorithm=MD5 ACK sip:ada@language.org SIP/2.0 Via: SIP/2.0/UDP 12.26.17.91:5060;branch=z9hG4bK454 Max-Forwards: 70 From: Charles Babbage sip:babbage@analyticalsoc.org>;tag=9382 To: sip:ada@language.org>;tag=34q4356g Call-ID: f6-32-9a-34-91-e7@analyticalsoc.org CSeq: 1 ACK <CSeq not incremented Method set to ACK INVITE sip:ada@language.org SIP/2.0 <INVITE resent with Via: SIP/2.0/UDP 12.26.17.91:5060;branch=z9hG4bK221 credentials Max-Forwards: 70 From: Charles Babbage <sip:babbage@analyticalsoc.org>;tag=9382 To: sip:ada@language.org SIP: Understanding the Session Initiation Protocol Call-ID:f6-32-9a-34-91-e7@analyticalsoc.or <Call-ID unchanged CSeq: 2 INVITE <CSeq incremented Proxy-Authorization: Digest username="Babbage", <Credentials realm="language.org" nonce="9c8e88df84f1cec4341ae6e5a359", opaque=" ", response="e56131d19580cd833064787ecc Contact: <sip:babbage@client.analyticalsoc.org> Subject: RE: Software User-Agent: Difference Engine 1 Content-Type: application/sdp Content-Length: 137 o=Babbage 2890844534 2890844534 IN IP4 12.26.17.91 C=IN IP4 12.26.17.91 m=audio 49170 RTP/AVP 0 a=rtpmap: 0 PCMU/8000 SIP/2.0 100 Trying <Credentials accepted Via: SIP/2.0/UDP 12.26.17.91:5060;branch=z9hG4bK221 From: Charles Babbage <sip:babbage@analyticalsoc.org>;tag=9382 To: sip:ada@language.org Call-ID: 6-32-9a-34-91-e7@analyticalsoc.org CSeq: 2 INVITE DNS Query: SRV language.org? DNS SRV Record: 10.14.92.1 INVITE sip:ada@language.org SIP/2.0 Via: SIP/2.0/UDP 15.16.17.18:5060;branch=z9hG4bk3f31049. Via: SIP/2.0/UDP 12.26.17.91:5060;branch=z9hG4bK221 Max-Forwards: 69 From: Charles Babbage e<sip:babbage@analyticalsoc.org>;tag=9382 To: sip:ada@language.org Call-ID: 6-32-9a-34-91-e7@analyticalsoc.org CSeq: 2 INVITE Contact: <sip:babbage@client.analytical