ok, I believe you are askign about REGISTER'ration --session .. 'The "expires" parameter of a Contact header field value indicates how long the URI is valid. The value of the parameter is a number indicating seconds'. Also, refer to-
10.2.4 Refreshing Bindings Each UA is responsible for refreshing the bindings that it has previously established. A UA SHOULD NOT refresh bindings set up by other UAs. The 200 (OK) response from the registrar contains a list of Contact fields enumerating all current bindings. The UA compares each contact address to see if it created the contact address, using comparison rules in Section 19.1.4. If so, it updates the expiration time interval according to the expires parameter or, if absent, the Expires field value. The UA then issues a REGISTER request for each of its bindings before the expiration interval has elapsed. It MAY combine several updates into one REGISTER request. A UA SHOULD use the same Call-ID for all registrations during a single boot cycle. Registration refreshes SHOULD be sent to the same network address as the original registration, unless redirected. Rama Madhav Bhamidipati <[EMAIL PROTECTED]> wrote: what about in case of refreshing for Session-Expires? Regards, Madhav --------- Original Message -------- From: "Ramachandran Iyer" <[EMAIL PROTECTED]> To: "Madhav Bhamidipati" <[EMAIL PROTECTED]>, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> Subject: Re: [Sip-implementors] Session refreshing Date: Tue 06/29/04 05:36 PM I believe Yes.. B'cos you would specify the needed change of your session, through the SDP (session description). You might intend to change 1 of the session attributes ..say the codec (compression rate) or the port at which media is being received etc.. Rama Madhav Bhamidipati <[EMAIL PROTECTED]> wrote: Is SDP body required in reINVITE for session refresh? _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors --------------------------------- Do you Yahoo!? Yahoo! Mail is new and improved - Check it out! --------------------------------- Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages! _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
