RFC 3054 (rfc3054) - Page 1 of 14
Megaco IP Phone Media Gateway Application Profile
Alternative Format: Original Text Document
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