RFC 3313 (rfc3313) - Page 1 of 16

Private Session Initiation Protocol (SIP) Extensions for Media Authorization

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Network Working Group                                   W. Marshall, Ed.
Request for Comments: 3313                                          AT&T
Category: Informational                                     January 2003


          Private Session Initiation Protocol (SIP) Extensions
                        for Media Authorization

Status of this Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2003).  All Rights Reserved.

Abstract

   This document describes the need for Quality of Service (QoS) and
   media authorization and defines a Session Initiation Protocol (SIP)
   extension that can be used to integrate QoS admission control with
   call signaling and help guard against denial of service attacks.  The
   use of this extension is only applicable in administrative domains,
   or among federations of administrative domains with previously
   agreed-upon policies, where both the SIP proxy authorizing the QoS,
   and the policy control of the underlying network providing the QoS,
   belong to that administrative domain or federation of domains.






















Marshall, Ed.                Informational

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