Real-Time Transport Protocol (RTP) Payload Format for the Variable-Rate Multimode Wideband (VMR-WB) Extension Audio Codec

Document Type Replaced Internet-Draft (individual in gen area)
Author Sassan Ahmadi 
Last updated 2015-10-14 (latest revision 2005-05-26)
Replaced by RFC 4424
Stream IETF
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state (None)
Document shepherd No shepherd assigned
IESG IESG state Replaced by draft-ietf-avt-rtp-vmr-wb-extension
Consensus Boilerplate Unknown
Telechat date
Responsible AD Allison Mankin
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document is an addendum to RFC xxxx, which specifies the real-time transport protocol for the Variable-Rate Multimode Wideband (VMR-WB) speech codec. This document contains the information related to the new operating mode of VMR-WB. All provisions, restrictions, use cases, features, etc. that are specified in RFC xxxx are applicable to the new operating mode without any exception. No new media type registration is included in this document as the new VMR-WB mode, defined in this document, will use the same media type specified in RFC xxxx (i.e., audio/VMR-WB). Note that the RFC xxxx was developed with sufficient flexibility for future extensions and thereby it allows the addition of new operating modes without any impacts on the interoperability of terminals supporting different versions of the VMR-WB standard.


Sassan Ahmadi (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)