Internet Voice Messaging (IVM) (RFC4239)
Original Publication Date: 2005-Nov-01
Included in the Prior Art Database: 2005-Nov-03
Internet Society Requests For Comment (RFCs)
S. McRae: AUTHOR [+2]
This document describes the carriage of voicemail messages over Internet mail as part of a unified messaging infrastructure.
Network Working Group S.
Request for Comments: 4239 IBM
Category: Standards Track G. Parsons
Internet Voice Messaging (IVM)
Status of This Memo
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 (C) The Internet Society (2005).
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
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.
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...