[asterisk-dev] RTP trunking - 58% savings on media bandwidth?

[Will]

On Tue, Apr 7, 2009 at 3:56 AM,  <mctiew at yahoo.com> wrote:
> I search the mail archive and come across the idea of reducing RTP overhead :-
>
> http://www.mail-archive.com/asterisk-dev@lists.digium.com/msg35070.html
>
> I would like to mention the idea of muliplexing multiple calls trunking into the same destination thereby saving header, has already been implemented by some commercial entities. Natural Microsystems ( now part of Dialogic Intel ) has implemented such a scheme which they call it Trupacket (?). They never release their spec, but the implementation is only multiplexing the Media streams, and is de-coulpled from call control, meaning one could be using SIP call control but Trupacket media stream. This is contrast with IAX which include both call control and media stream.


Is this method of trunking specified in a RFC somewhere?  IAX does
trunking and has the ability to separate call control and the media
stream in current implementations, IIRC.