For clarity, your example is using UAC as "session originator" instead of the RFC 3261 definition.
> UAS send re-INVITE without session-expires header to modify > session attribute. (This request has supported header field > with the option tag 'timer') > When UAC receives this request, how does UAC behave? If it wants to keep Session-Expires active, it adds Session-Expires when sending the 200 response. If the 200 response does not contain Session-Expires, the devices have negotiated to no longer use the session timer mechanism on the dialog. _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
