A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Media Session Authorization
Author(s) : D. Wing
Filename : draft-wing-session-auth-00.txt
Pages : 15
Date : 2006-2-1
In many VoIP networks today, firewalls and session border controllers
are used at the edge of an administrative domain to allow authorized
UDP media flows to enter or leave the network. This document
introduces a new mechanism to authorize a UDP media flow. This
mechanism works with encrypted hop-by-hop signaling, end-to-end
authenticated signaling, and multihomed networks. The media
authorization is performed using an Interactive Connectivity
Establishment-capable endpoint and a calling signaling device that
authorizes a firewall to permit a flow.
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http://www.ietf.org/internet-drafts/draft-wing-session-auth-00.txt
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