[Asterisk-Users] A rather big setup.

[Jan Saell]

Remember that the E1 only gives you a 30 lines from each floor then!

If you use a dedicated 100mbs ethernet and uses IAX trunks you can have 
much more lines from each floor.

Just my 5 cents.

Best regards

--On Saturday, November 26, 2005 12:35:16 PM +0100 Vedran Dakic 
<java at it-review.net> wrote:

>> You mean 240 / 1000 simultaneous calls or 240 outside lines and 1000
>> internal phones ?
>
> I can only guess that I should have the ability to deliver a solution that
> can do some 100/500 simultaneously. The only question is how powerful
> should be a machine (or machines) that could do around 100/500
> simultaneously. And, just for the sake of knowing, what should the setup
> be alike if it was 240/1000 simultaneously?
>
>> In the second case there's no need for a cluster, a good server will do,
>> (obviously a second server for backup is a good idea ). I'm assuming you
>> can use a/ulaw to transmit the data, if bandwidth is a problem and you
>> must compress cpu usage becomes a boottleneck to keep in mind.
>
> A/ulaw? I saw some reports that G.729 uses very little bandwidth and has
> a quality part granted (audio quality). It's not a question of hardware
> and/or CPU power, I have two dual Opteron configurations and could install
> some more, it's just the question of that setup running with quality audio
> and no unwanted events.
>
> I presume that I should have all of the phones using the same codec (so,
> no transcoding), and preferrably the same VoIP protocol. I have a choice
> there so everything's possible. Let's say - IP10s has H.323, SIP and MGCP
> firmwares, although I'd like to leave H.323 out of the story.
>
>> I'm having ~80 concurrent calls from iax/sip to pri  in alaw  from an
>> userbase of ~150 clients and the cpu is around 6% on a dual 2.8 Ghz.
>> 1000 phones are a lot, and sip sometimes is an hassle (mostly nat), I
>> don't know your network topology, but maybe you can consider to connect
>> every group of phones to an asterisk pc and the pcs to the server via
>> iax, which uses a little less bandwidth and most of all works "out of
>> the box". A pentium 400 can handle ~8 calls with ilbc, so every modern
>> pc will do.
>
> Maybe I have a better idea, now that I come to think of it. Maybe I should
> install one Asterisk server per floor (8-9 floors) and use IAX to connect
> to the central server with E1 connections. Does that sound reasonable?
>
>
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