Signalling the Ability To Understand Packing of Multiple Telephony Events Into One RTP Packet

Document Type Expired Internet-Draft (individual)
Author Tom Taylor 
Last updated 2007-01-05
Stream (None)
Expired & archived
plain text pdf htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active.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


Section of RFC 4733 specifies how an implementation of the telephony-event payload type can pack multiple short-duration event reports into one RTP packet. Because this capability was added to RFC 4733 in a fashion which is not backward compatible with RFC 2833, it is desirable that a sender have the means to determine whether the receiver understands such packets. This memo specifies a new SDP attribute, a=multev, to indicate that capability.


Tom Taylor (

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