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This draft is a work item of the Session Initiation Protocol Working Group of the IETF.
Title : SIP Extensions for supporting Distributed Call State
Author(s) : B. Marshall et al.
Filename : draft-ietf-sip-state-01.txt
Pages : 12
Date : 01-Mar-01
This document describes an extension to the Session Initiation
Protocol (SIP) that enables proxies to distribute call state to user
agents. The state information can be returned to the proxy when the
user agent requests a change in the characteristics of the active
call. By providing the ability to distribute state to the user
agents where it can be securely stored, proxy servers can remain
stateless for the duration of the call. This mechanism allows a
proxy server to provide services that depend on call state, while
still being stateless.
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