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Real-time Transport Protocol (RTP) Payload Format for internet Low Bit Rate Codec (iLBC) Speech (RFC3952)

IP.com Disclosure Number: IPCOM000033254D
Original Publication Date: 2004-Dec-01
Included in the Prior Art Database: 2004-Dec-02
Document File: 14 page(s) / 29K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

A. Duric: AUTHOR [+2]

Abstract

This document describes the Real-time Transport Protocol (RTP) payload format for the internet Low Bit Rate Codec (iLBC) Speech developed by Global IP Sound (GIPS). Also, within the document there are included necessary details for the use of iLBC with MIME and Session Description Protocol (SDP).

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 9% of the total text.

Network Working Group                                           A. Duric

Request for Comments: 3952                                         Telio

Category: Experimental                                       S. Andersen

                                                      Aalborg University

                                                           December 2004

           Real-time Transport Protocol (RTP) Payload Format

             for internet Low Bit Rate Codec (iLBC) Speech

Status of this Memo

   This memo defines an Experimental Protocol for the Internet

   community.  It does not specify an Internet standard of any kind.

   Discussion and suggestions for improvement are requested.

   Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2004).

Abstract

   This document describes the Real-time Transport Protocol (RTP)

   payload format for the internet Low Bit Rate Codec (iLBC) Speech

   developed by Global IP Sound (GIPS).  Also, within the document there

   are included necessary details for the use of iLBC with MIME and

   Session Description Protocol (SDP).

Table of Contents

   1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . .  2

   2. Background. . . . . . . . . . . . . . . . . . . . . . . . . . .  2

   3. RTP Payload Format. . . . . . . . . . . . . . . . . . . . . . .  3

      3.1. Bitstream definition . . . . . . . . . . . . . . . . . . .  3

      3.2. Multiple iLBC frames in a RTP packet . . . . . . . . . . .  6

   4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . .  7

      4.1. Storage Mode . . . . . . . . . . . . . . . . . . . . . . .  7

      4.2. MIME registration of iLBC. . . . . . . . . . . . . . . . .  8

   5. Mapping to SDP Parameters . . . . . . . . . . . . . . . . . . .  9

   6. Security Considerations . . . . . . . . . . . . . . . . . . . . 11

   7. References. . . . . . . . . . . . . . . . . . . . . . . . . . . 11

      7.1. Normative References . . . . . . . . . . . . . . . . . . . 11

      7.2. Informative References . . . . . . . . . . . . . . . . . . 12

   8. Acknowledgements. . . . . . . . . . . . . . . . . . . . . . . . 12

   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 12

   Full Copyright Statement . . . . . . . . . . . . . . . . . . . . . 13

Duric & Andersen              Experimental                      [Page 1]

RFC 3952           RTP Payload Format for iLBC Speech      December 2004

1.  Introduction

   This document describes how compressed iLBC speech, as produced by

   the iLBC codec [1], may be formatted for use as an RTP payl...