Robert Chen wrote: [ Moved to SIP Implementors ] > What should the proxy server do if we never get the BYE message? Depends on what is the statefullness of the proxy; a stateless proxy could care less if it got a BYE or not; ditto for a transaction-stateful proxy. A call-stateful proxy may maintain resources until it gets a BYE, so this is probably the case of interest to you. > If neither UA will end the call with a BYE message, how can the proxy > server know? Call stateful proxies may support the session timer extension (see http://search.ietf.org/internet-drafts/draft-ietf-sip-session-timer-04.txt) > Only SIP gateway contact with Radius server is meanful? A proxy server > contact with Radius server is meanless? Not really; depending on what is it that you want the proxy to do. For instance, if the proxy is executing some services on behalf of the user, it may use RADIUS to authenticate/authorize the user (see http://search.ietf.org/internet-drafts/draft-sterman-sip-radius-00.txt) - vijay -- Vijay K. Gurbani vkg@{lucent.com,research.bell-labs.com,acm.org} Internet Software and eServices Group Lucent Technologies/Bell Labs Innovations 263 Shuman Blvd., Rm 1A-413 Naperville, Illinois 60566 Voice: +1 630 224 0216 Fax: +1 630 713 0184 _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
