Hello, I read the list archives but couldn't find a definite answer on an issue.
A client sends a REGISTER message to a SIP Proxy, which changes the Contact: header to itself, but leaves the From: intact. The message is then forwarded to the REGISTAR. Some questions: *Is this enough to guarantee that inbound messages will be directed to such Proxy? Assuming of course the Registar is queried by other Proxies? * Is it guaranteed that the 200OK for the REGISTER will go through the Proxy? Given that Record-Route is not processed in REGISTER messages I got the impression that the REGISTAR could (at least theoretically) send the 200OK message directly to the endpoint Does this Proxy registration mechanism have any implication in REGISTER call flows where authentication is used? I looked at RFC3327 but it seems in that case the Contact: header isn't changed. Besides it seems to assume that DNS is not used. Finally, how widespread is RFC3327? Thanks, Reinaldo _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
