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A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : RTP payload format for EFR speech codec
Author(s) : P. Barany, W. Navarro
Filename : draft-barany-avt-efr-00.txt
Pages : 8
Date : 08-Nov-01
This document specifies a Real-Time Transport Protocol (RTP) payload
format for the Global System for Mobile communications (GSM) Enhanced
Full Rate (EFR) speech codec. The EFR speech codec RTP payload format
specified in this document closely resembles the EFR speech codec RTP
payload format defined in TS 101 318 'Using GSM Speech Codecs Within
ITU-T Recommendation H.323'. It is designed specifically to optimally
interoperate with existing (i.e., legacy) GSM circuit-switched
transceiver equipment in the sense that it supports the following
EFR speech codec circuit-switched domain functionality in the packet-
switched domain: error concealment of lost speech frames and SIlence
Descriptor (SID) frames. The EFR speech codec RTP payload format
defined in TS 101 318 does not support this functionality. A MIME
type registration for the EFR speech codec is also included.
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