Have a look at:
http://search.ietf.org/internet-drafts/draft-rosenberg-sip-3pcc-01.txt
The 'controller' in this draft is a B2BUA.
Cheers,
Neil.
--
Ubiquity Software Corporation, UK http://www.ubiquity.net
Victor Kueh wrote:
>
> Dear all,
>
> I am new to this sip-implementors list. I have come across the
> term 'B2BUA' many times, but am not very sure with the exact
> definition. Can someone please clarify that for me?
>
> Also what is the difference in behaviour of B2BUA with the other types of
> servers (proxy, redirect, registrar)?
>
> Thanks
>
> Victor
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