[Serusers] Re: [Serhelp] third part session control
jiri at iptel.org
Wed Dec 4 13:29:09 CET 2002
[cc: changed to serusers, which is publicly archived]
There is no B2BUA support in SER. You can try to use some
existing B2BUA implementation. You can use SER along with
B2BUA too -- they interact using SIP. You just need to set
SIP routing accordingly to your scenario.
You should be perhaps warned of some side-effect of use
of the B2BUA technology. The root reason is B2BUAs break
the end-to-end model, in which intelligence lives in
end-devices. With B2BUA, you put a fair amount of work
on a network entity. That breaks e2e security, degrades
scalability and robustness -- B2BUA's failure affect
all existing calls.
At 01:18 PM 12/4/2002, Igor Vasiliev wrote:
> I've tryed to read B2BUA's doc that I could find.
>But I did't properly understand how it should works with SER.
>Should SER redirect any INVITE(e.t.c) request to B2BUA,
>and after B2BUA'll try to establish connection with a calee
>on behalf of B2BUA?
> Or B2BUA should be stand alone programm working without
>any SIP proxy server?
> Then how could it find out callee location.
>Could anybody describe me shortly a interaction model
>between caller B2BUA SER and callee.
>Just general example.
>Serhelp mailing list
>serhelp at lists.iptel.org
Jiri Kuthan http://iptel.org/~jiri/
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