RFC 3261, Table 3 mentions Require header as "conditional" in INVITE request. Therefore it can be present/absent based on the context in which the INVITE is sent.
100rel tag in Require header MANDATES the support of provisional responses from the UA. If the receiving UA does not support the 100rel extension(provisional responses) it needs to take down the call. Any tag present in Supported header is NOT mandatory. Regards Harsha On 19/02/2008, sudhir kumar <[EMAIL PROTECTED]> wrote: > > Hi All, > > Is supported and require methods are required for INVITErequest (RFC 3262) > or any of method(either Supported or require) willsuffice for INVITE for > Provisional ACK. Because I see in one ofINVITE(from server) sending only > require: 100Rel, but there is noSupported Header. > > Should we treat as complete or incomplete request? > > Any response is highly appreciated. > > Thanks in Advance > Sudhir > > > > Unlimited freedom, unlimited storage. Get it now, on > http://help.yahoo.com/l/in/yahoo/mail/yahoomail/tools/tools-08.html/ > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > -- Regards Harsha _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
