Signalling the Ability To Understand Packing of Multiple Telephony Events Into One RTP Packet
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Section 18.104.22.168 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.
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