A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Audio/Video Transport Working Group of the IETF.
Title : Real-Time Transport Protocol (RTP) Payload Formats for
the Variable-Rate Multimode Wideband (VMR-WB) Audio
Codec
Author(s) : S. Ahmadi
Filename : draft-ietf-avt-rtp-vmr-wb-06.txt
Pages : 29
Date : 2004-12-1
This document specifies a real-time transport protocol (RTP) payload
format to be used for the Variable-Rate Multimode Wideband (VMR-WB)
speech codec. The payload format is designed to be able to
interoperate with existing VMR-WB transport formats on non-IP
networks. A MIME type registration is included for VMR-WB RTP
payload formats.
VMR-WB is a variable-rate multimode wideband speech codec that has a
number of operating modes, one of which is interoperable with AMR-WB
(i.e., RFC 3267) audio codec at certain rates. Therefore, provisions
have been made in this draft to facilitate and simplify data packet
exchange between VMR-WB and AMR-WB in the interoperable mode with no
transcoding function involved.
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http://www.ietf.org/internet-drafts/draft-ietf-avt-rtp-vmr-wb-06.txt
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