Hi, You mean that the original INVITE did not have Supported: 100rel? [Subbu] Yes In that case, the far end is in error when it sends a Require: 100rel. [Subbu] The UAS is behaving incorrectly The right way is to send not supported. One of the 4XX responses. [Subbu] How can a UAC send 4xx response? As far as I know UAC can only send CANCEL for the INVITE it had send.
Regards, Subbu -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Kedar Karmarkar Sent: Thursday, April 06, 2006 12:42 PM To: Sip-Implementors Subject: Re: [Sip-implementors] Query on PRACK You mean that the original INVITE did not have Supported: 100rel? In that case, the far end is in error when it sends a Require: 100rel. The right way is to send not supported. One of the 4XX responses. On 4/5/06, Rajendra, Subbu <[EMAIL PROTECTED]> wrote: > > Hi, > If a UAS tries to send a provisional response reliably (by including > "Require: 100rel" header) to a UAC that does not support the 100rel tag, > what should be the course of action that the UAC should take? Should UAC > ignore this tag and process the provisional response unreliably or should it > cancel the INVITE? Any pointers to this would be helpful. Thanks in advance. > > Regards, > Subbu > > _______________________________________________ > 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
