Short version: does the address field in the origin line have any particular significance in SIP? I'm thinking no, but would appreciate a second opinion.
Long version: Here's an snippet from a 183 response with SDP answer that I captured: Contact: <sip:[EMAIL PROTECTED]:10000> o=Sonus_UAC 7952 20059 IN IP4 69.59.245.131 c=IN IP4 69.59.245.132 I was explaining to someone what the various addresses in a SIP message mean. For example, one could say that the address in the Contact header specifies where the UA wants to receive SIP messages; and the address in the c= line is where it wants to receive RTP/RTCP packets. Note that the origin address is different from either of these. I couldn't think of any particular use for that address field. And after searching the various specs and mailing lists, I still can't come up with one. So ... I've tentatively concluded that the address has no particular relevance to SIP call setup or the offer/answer exchange (other than the fact that all of the fields in the origin line are used to identify a unique SDP). Would anyone care to comment on that? -- Gary Cote www.awardsolutions.com _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
