> If the UA1 does not support session timer > and initiates invite without supported header. > Proxy adds Session-expiry header to it and > forwards to UA2. > > If session-expires value is below the UA2 Min-SE, > the UA2 will send a 422 which may not be > interpreted correctly by the UA1 since it > does not support Session Timer.
>From section 3: "In the case where the UAC isn't aware of the session timer extension, a proxy that receives a session refresh request with a Session-Expires lower than the configured minimum places the Min-SE header field in the proxied request, and increases the Session-Expires header field value to that minimum." The UAS should basically act the same and increase the Session-Expires. Section 9 and/or section 8.1 should potentially be updated to reflect the situation. _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
