The main gain in using a B2BUA is that you take responsibility for terminating the extra call legs, it is as good as your B2BUA will be, by delegating the responsibility upstream you can not always be sure it is handled properly.
I wonder if Kamailio should consider evolving in B2BUA support. I am expecting to receive tomatoes.
On Tue, Apr 21, 2020 at 3:50 AM Nuno Ferreira nferreira@fuze.com wrote:
Hi Alex,
Isn't the option of generating multiple call legs with a B2BUA more subject to dead air/ghost calls than letting kamailio handle parallel forking?
Nuno
On Tue, Apr 21, 2020 at 12:06 AM Alex Balashov abalashov@evaristesys.com wrote:
It should be noted at a rather general level that parallel forking is replete with race conditions, and is a nasty and unwieldy aspect of SIP.
The pain of using parallel forking to implement something like "ring groups", for example, is often not worth the savings in architectural complexity.
If you have some other means of accomplishing what you want to accomplish, e.g. using a B2BUA to generate multiple independent call legs simultaneously ringing multiple destinations, I strongly advise you to go with that instead.
-- Alex
-- Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
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