On Mon, 2012-07-23 at 12:27 +0530, Kannan wrote:The number of registered users is not that big, the 1000 concurrent
> Thanks SamyGo and Mitul for your prompt responses.
> I have been vested with the responsibility to evaluate Asterisk for a
> VOIP solution. I was just going through couple of documents and got
> impressed by the features it has to offer. Our user base is around
> 15000 and the system should support 1000 concurrent calls, with BHCA
> projected at 16000.
calls means multiple asterisk boxes load balanced and that can be tricky
If you use transcoding at the asterisk side then 200-300 concurrent
calls is what to expect per box (depending on codec used)
You can, but usually for virtual/hosted pbx's you need an additional
> I plan to use OpenSER for SIP registrations and Asterisk for media
> processing. RTP Proxy will be used for handling NAT traversal. DNS
> based load balancing/fail over is preferred over Ultramonkey based
> I have quite a few more questions on Asterisk.
> 1. Can we setup virtual private PBX inside Asterisk. I.e. One
> installation of Asterisk will handle many configured hosted PBXs. Each
> virtual private PBX should be able to be configured and managed
layer of management software or a lot of copy paste ;)
Another thing i have seen with hosted/virtual pbx's especially if you
use real-time to configure them is that the resources required on the
box are substantial and thus you get less virtual pbx's per box than if
you used the classical flat-file configs.
Its a trade-off between easy of usage and resources required but if you
have lots of virtual pbx's running on premises it adds up quickly.
If it's T38 pass-through you don't need a license.
> 2. Do we have to buy Fax licence, if Asterisk is to support end-to-end
> Fax. I.e. Asterisk will not be used in Fax media procession, but only
> the SIP signals will be handled by Asterisk.
Have a look here
If asterisk does any processing then Digium offers licenses.
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