I think it is possible to read it multiple ways: 4.1 "Supported: from-change" is added
- when UAC indicates to UAS that it can HANDLE receiving updated From header different than the one used establishing the dialog. - when UAC indicates to UAS that it may SEND an updated From header different than the one used establishing the dialog. - all of the above. Inaki thinks it is the last one: all of the above. However, as I pointed out in my first mail, section 3 implies only the first one (it can HANDLE receiving updated From header). -volkan On Wed, Mar 31, 2010 at 9:33 AM, Arunachala <[email protected]> wrote: > Isn't this a clear violation of Section 4.1 of RFC 4916 you have quoted above? > > Alice who supports changing of From header MUST put "from-change" in > Supported. > > -Arun > > On Tue, Mar 30, 2010 at 9:53 AM, Volkan Hatem <[email protected]> wrote: >> What about the other direction? Alice sends an invite without >> "Supported: from-change" but response from bob does include it. Would >> it be OK for Alice to change the From header during dialog? >> >> -volkan >> >> On Tue, Mar 30, 2010 at 6:09 PM, Iñaki Baz Castillo <[email protected]> wrote: >>> 2010/3/30 Volkan Hatem <[email protected]>: >>> >>>> Does a UA, which updates "From" header (or conveys an updated "From" >>>> header) >>>> have to include "from-change" option tag in Supported header? >>> >>> I understand that "Supported: from-change" must be include in request >>> and responses. If alice sends an INVITE to bob with "Supported: >>> from-change" but the response from bob doesn't contain such header, >>> then alice shouldn't change the From header during the dialog (this is >>> what it makes sense for me). >>> >>> >>> >>> -- >>> Iñaki Baz Castillo >>> <[email protected]> >>> >> >> _______________________________________________ >> Sip-implementors mailing list >> [email protected] >> https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors >> > > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
