If that appears in REGISTER then it's meaning is to de-register all the conacts for that AoR. UAS can't drop that REGISTER request.
-----Original Message----- From: Bala Neelakantan [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 01, 2007 11:53 AM To: Sarkar, Uttam; 'Attila Sipos'; 'Michael Hirschbichler'; [email protected] Subject: RE: [Sip-implementors] Question regarding BNF and Contact:-Header Having Contact: * Expires:0 as a SIP header has a different meaning. In this case, this Expires is associated with the SIP Message. Theoretically, the UAS can drop the request. Thanks, Neel > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:sip-implementors- [EMAIL PROTECTED] On Behalf Of > Sarkar, Uttam > Sent: Tuesday, April 17, 2007 7:25 AM > To: Attila Sipos; Michael Hirschbichler; > [email protected] > Subject: Re: [Sip-implementors] Question regarding BNF and > Contact:-Header > > You can do as follows. > > Contact: * > Expires: 0 > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Attila > Sipos > Sent: Tuesday, April 17, 2007 8:13 AM > To: Michael Hirschbichler; [email protected] > Subject: Re: [Sip-implementors] Question regarding BNF and > Contact:-Header > > > I think your error is that you are trying to create a Contact header > which is not valid. > > If the BNF grammar doesn't permit your header, then you shouldn't try > to construct it. > > >>it is possible to create a > >>"Contact" HCOLON STAR _or_ > >>"Contact" HCOLON ((contact-param *(COMMA contact-param)) > > Correct, but "Contact: *; expires=0" is none of the above so it is not > valid. > > Regards, > Attila > > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Michael > Hirschbichler > Sent: 17 April 2007 10:40 > To: [email protected] > Subject: [Sip-implementors] Question regarding BNF and Contact:-Header > > > Hi, > > I am trying to create the contact-header > Contact: *; expires=0 > but if I use the BNF in RFC 3261, I am not able to reconstruct it: > RFC3261: > ======================================================== > ... > Contact = ("Contact" / "m" ) HCOLON > ( STAR / (contact-param *(COMMA contact-param))) > contact-param = (name-addr / addr-spec) *(SEMI contact-params) > name-addr = [ display-name ] LAQUOT addr-spec RAQUOT > addr-spec = SIP-URI / SIPS-URI / absoluteURI > display-name = *(token LWS)/ quoted-string > > SEMI = SWS ";" SWS ; semicolon > STAR = SWS "*" SWS ; asterisk > HCOLON = *( SP / HTAB ) ":" SWS > RAQUOT = ">" SWS ; right angle quote LAQUOT = SWS "<"; left angle > quote ... > ======================================================== > > Regarding > ("Contact" / "m" ) HCOLON ( STAR / (contact-param *(COMMA > contact-param))) it is possible to create a "Contact" HCOLON STAR _or_ > "Contact" HCOLON ((contact-param *(COMMA contact-param)) > > So, where is my error? > > Best regards > Michael > _______________________________________________ > 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 _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
