El Jueves, 18 de Febrero de 2010, Paul Kyzivat escribió: > Iñaki Baz Castillo wrote: > > El Miércoles, 17 de Febrero de 2010, Paul Kyzivat escribió: > >> AFAIK the contents of that To header are to be generated from dialog > >> state information. The URI and the tag are part of that state, but other > >> header parameters from the original INVITE are not, and hence would not > >> be available for the addressing of subsequent messages. > >> > >> Does anyone have a different opinion? > >> If so, can you justify it? > > > > I also expect that keeping the From/To tags are enough while keeping > > other From/To header parameters is not required for an in-dialog request. > > > > If Alice wants to keep more custon info within the dialog she/it could > > add such parameters to Contact URI in the first parameter, right? > > They could be added as Contact URI params, or as From URI params.
Yes, but it's not mandatory From URI to be unchanged within a dialog (the only requeriment is From tag to be the same). In the other side the Contact URI must be unchanged within the dialog (except if a peer changes it in a re-INVITE, but then it could add the same URI custom param). The point is that bob must mirror the alice's Contact (including URI params) for in-dialog requests from bob to alice. -- Iñaki Baz Castillo <[email protected]> _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
