RFC 2871 (rfc2871) - Page 1 of 25

A Framework for Telephony Routing over IP

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Network Working Group                                       J. Rosenberg
Request for Comments: 2871                                   dynamicsoft
Category: Informational                                   H. Schulzrinne
                                                     Columbia University
                                                               June 2000


               A Framework for Telephony Routing over IP

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 (2000).  All Rights Reserved.

Abstract

   This document serves as a framework for Telephony Routing over IP
   (TRIP), which supports the discovery and exchange of IP telephony
   gateway routing tables between providers. The document defines the
   problem of telephony routing exchange, and motivates the need for the
   protocol. It presents an architectural framework for TRIP, defines
   terminology, specifies the various protocol elements and their
   functions, overviews the services provided by the protocol, and
   discusses how it fits into the broader context of Internet telephony.

Table of Contents

   1      Introduction ........................................    2
   2      Terminology .........................................    2
   3      Motivation and Problem Definition ...................    4
   4      Related Problems ....................................    6
   5      Relationship with BGP ...............................    7
   6      Example Applications of TRIP ........................    8
   6.1    Clearinghouses ......................................    8
   6.2    Confederations ......................................    9
   6.3    Gateway Wholesalers .................................    9
   7      Architecture ........................................   11
   8      Elements ............................................   12
   8.1    IT Administrative Domain ............................   12
   8.2    Gateway .............................................   13
   8.3    End Users ...........................................   14
   8.4    Location Server .....................................   14
   9      Element Interactions ................................   16



Rosenberg & Schulzrinne      Informational
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