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Internet Voice Messaging (IVM) (RFC4239) Disclosure Number: IPCOM000130728D
Original Publication Date: 2005-Nov-01
Included in the Prior Art Database: 2005-Nov-03
Document File: 12 page(s) / 25K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

S. McRae: AUTHOR [+1]


This document describes the carriage of voicemail messages over Internet mail as part of a unified messaging infrastructure.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 11% of the total text.

Network Working Group                                           S. McRae
Request for Comments: 4239                                           IBM
Category: Standards Track                                     G. Parsons
                                                         Nortel Networks
                                                           November 2005

                     Internet Voice Messaging (IVM)

Status of This Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2005).


   This document describes the carriage of voicemail messages over
   Internet mail as part of a unified messaging infrastructure.

   The Internet Voice Messaging (IVM) concept described in this document
   is not a successor format to VPIM v2 (Voice Profile for Internet Mail
   Version 2), but rather an alternative specification for a different

1.  Introduction

   For some forms of communication, people prefer to communicate using
   their voices rather than typing.  By permitting voicemail to be
   implemented in an interoperable way on top of Internet Mail, voice
   messaging and electronic mail no longer need to remain in separate,
   isolated worlds, and users will be able to choose the most
   appropriate form of communication.  This will also enable new types
   of devices, without keyboards, to be used to participate in
   electronic messaging when mobile, in a hostile environment, or in
   spite of disabilities.

   There exist unified messaging systems that will transmit voicemail
   messages over the Internet using SMTP/MIME, but these systems suffer
   from a lack of interoperability because various aspects of such a
   message have not hitherto been standardized.  In addition, voicemail
   systems can now conform to the Voice Profile for Internet Messaging

McRae & Parsons             Standards Track                     [Page 1]
RFC 4239                Internet Voice Messaging           November 2005

   (VPIM v2 as defined in RFC 2421 [VPIMV2] and revised in RFC 3801,
   Draft Standard [VPIMV2R2]) when forwarding messages to remote
   voicemail systems.  VPIM v2 was designed to allow two voicemail
   systems to exchange messages, not to allow a voicemail system to
   interoperate with a desktop e-m...