Name: draft-ietf-sip-session-timer-15
Title: Session Timers in the Session Initiation Protocol (SIP)
State: Pending
Authors: Steve Donovan, Jonathan Rosenberg
Group: Session Initiation Protocol (sip)
Date: 2004-08-11
This document defines an extension to the Session Initiation Protocol
(SIP). This extension allows for a periodic refresh of SIP sessions through
a re-INVITE or UPDATE request. The refresh allows both user agents and
proxies to determine if the SIP session is still active. The extension
defines two new header fields, Session-Expires, which conveys the lifetime
of the session, and Min-SE, which conveys the minimum allowed value for the
session timer.
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