"Ar c'hasour" <[EMAIL PROTECTED]> writes: > On a SIP server (eg: SIP announcement machine), supposed a SIP call > has been started (INVITE received), and that the registration > expires before the BYE has been received. Does the server has to > send a BYE from its own?
No. The purpose of the registration is to maintain routing information that binds an address of record to a particular contact; this allows the INVITE to find the current Contacts for a given address. Once the call is set up (2xx to the INVITE) the proxy need not be involved any longer - the BYE (like any request within the dialog) is sent to the remote target URI (which was returned in the Contact header of the 2xx response to the INVITE), so the routing information maintained through the registrar is not needed; whether or not it has expired is irrelevant. -- Scott Lawrence Pingtel Corp. _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
