On Apr 15, 2008, at 12:33 PM, Francois Audet wrote: > I'm not sure about that. > > It's not because it's mandatory that people implement it (TLS, TCP, > SIPS, to name a few). > I think we need instead to explain it is necessary, and what doest > it mean to various components (i.e., UACs, UASs, and Proxies). > > For example: > > - UACs MUST support Tel URIs (and use whatever proxy they have > available to route requests to Tel URIs). Example, recurse on 302.
They don't necessarily have to use a proxy; they might have their own telephony routing tables, be able to make ENUM lookups, etc. AS I've said, we need an RFC 3263 for tel: URIs if we expect people to use tel: > > > - UAs (not sure there are many problems here). UAS might need to be able to return a Tel contact in a 302 if they issue 302 at all. -- Dean _______________________________________________ Sip mailing list https://www.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use [EMAIL PROTECTED] for questions on current sip Use [EMAIL PROTECTED] for new developments on the application of sip
