[asterisk-biz] Max concurrent calls?

[Michael Munger]

1. Single server is not a requirement. If we have to use 10 servers,
that would be ok, but I would like to use the most efficient number of
servers possible.

2. Sky's the limit on the hardware. Dual quad-core zeons w/ 8GB of RAM
is what I was thinking initially. HP Prolient DL series, running FC4.

3. 1000 calls will be talking. Individual conversations. 

4. To lessen the load on the server, most of these calls will be using
the same codec, and thus we will try our best to limit the amount of
transcoding that is necessary.

5. Nothing else runs on the machine. It will be dedicated.

We are want to build a private phone network to connect offices and
users around the world using IAXy's and asterisk with servers in
strategic locations that will be governed by a numbering plan.

The initial goal is to be able to support 1,000 concurrent calls / box
with two boxes at our home base, and distribute the IAXy's to an
existing customer base who need to communicate with each other.

Yours,
Michael Munger, dCAP
404-438-2128
michael at highpoweredhelp.com

-----Original Message-----
From: asterisk-biz-bounces at lists.digium.com
[mailto:asterisk-biz-bounces at lists.digium.com] On Behalf Of Michael
Jerris
Sent: Tuesday, April 03, 2007 9:31 AM
To: Commercial and Business-Oriented Asterisk Discussion
Subject: RE: [asterisk-biz] Max concurrent calls?

The full answer to this question greatly depends on quite a few factors,
the most important being:

Is a single server a hard requirement?
What kind of hardware?
What will these 1000 calls be doing?
Will you be transcoding?  If so, what protocols?
What else will be running on the machine?

All those questions aside, with proper hardware for your requirements, I
would generally advise to keep individual instances of asterisk to
around 200-250 calls.  These numbers are anecdotal but somewhat
supported if you search the list archives, or look at the number of
calls that digium will support on business eddition.  Given certain
restrictions and proper hardware it would be possible to do 1000 calls
on single box with multiple instances of asterisk.

That being said, if you can describe your needs and requirements more
fully, it is quite possible that a mixture of solutions (for example
open ser and multiple asterisk instances) could even scale much larger
than that on a single box, if for example your requirements do not
require you to be in the media path for most of the calls.  The biggest
trick is to know clearly what your needs are, and segment in such a way
that you can use the best tool for each job.

Mike

> -----Original Message-----
> From: asterisk-biz-bounces at lists.digium.com [mailto:asterisk-biz-
> bounces at lists.digium.com] On Behalf Of Michael Munger
> Sent: Tuesday, April 03, 2007 2:08 PM
> To: Commercial and Business-Oriented Asterisk Discussion
> Subject: [asterisk-biz] Max concurrent calls?
> 
> What's the max number of concurrent calls a single server can handle?
> 
> I have a request for 1,000 concurrent calls. Can we load balance
between
> multiple servers?
> 
> Yours,
> Michael Munger
> michael at highpoweredhelp.com

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