RFC 3054 (rfc3054) - Page 1 of 14

Megaco IP Phone Media Gateway Application Profile

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Network Working Group                            P. Blatherwick (Editor)
Request for Comments: 3054                               Nortel Networks
Category: Informational                                         R. Bell
                                                           Cisco Systems
                                                              P. Holland
                                                    Circa Communications
                                                   (Chair TIA TR-41.3.4)
                                                            January 2001


           Megaco IP Phone Media Gateway Application Profile

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 (2001).  All Rights Reserved.

Abstract

   This document specifies a particular application of the Megaco/H.248
   Protocol for control of Internet telephones and similar appliances:
   the Megaco IP Phone Media Gateway.  The telephone itself is a Media
   Gateway (MG), controlled by the Megaco/H.248 Protocol, with
   application control intelligence located in the Media Gateway
   Controller (MGC).  To achieve a high degree of interoperability and
   design efficiency in such end-user devices, a consistent
   architectural approach, a particular organization of Terminations and
   Packages, and a Protocol Profile are described.  The approach makes
   use of existing Protocol features and user interface related
   Packages, and is thus a straight-forward application of the
   Megaco/H.248 Protocol.

1.  Introduction

   This document represents the current view from the TIA working group
   on VoIP (Voice over IP) telephone specification [1], TIA TR-41.3.4,
   with the intent of using this as part of its "whole device"
   specification as an optional method of device control.

   Industry feedback has made it clear that interoperability and
   acoustic performance of Internet telephones is key to the rapid and
   extensive commercialization of these products.  To facilitate this,
   the TIA has established working group TR-41.3.4 to develop a standard



Blatherwick, et al.          Informational
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