User Multiplexing in RTP payload between IP Telephony Gateways

Document Type Expired Internet-Draft (avt WG)
Authors Senthil Sengodan  , Barani Subbiah 
Last updated 1998-08-31
Stream Internet Engineering Task Force (IETF)
Expired & archived
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Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This draft proposes a method to multiplex a number of low bit rate audio streams (upto 256) into a single RTP/UDP/IP connection between IP telephony gateways. Audio samples from different users are assem- bled into an RTP payload thus reducing the overhead of RTP/UDP/IP headers. To identify users sharing a single RTP/UDP/IP connection, a 2 byte MINI-Header is proposed. A channel negotiation procedure to assign and release channels on a single UDP connection between gateways is described.


Senthil Sengodan (
Barani Subbiah (

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