[asterisk-users] twenty thousands (20, 000) users, which asterisk and how many servers?

[Kevin P. Fleming]

On 05/23/2012 07:16 AM, bilal ghayyad wrote:
> Hi All;
>
> I need to use Asterisk for 20 000 users, so which asterisk version to be used? Is there asterisk version that supports 20,000 users on one hardware machine?
>
> Can I use one strong hardware server i7 with 64 GB RAM and fast hard desk to handle 20 000 users, and concurrent calls 2000? Or I need multiple servers, how much?
>
> If I am going to use multiple servers (until now I do not know how much, and I do not know if the barrier will be the asterisk software or the hardware), then do I have to use special SIP proxy or I have to use load balancer)? In this case, I have to use asterisk Database (so all the servers will read/write from the database)?
>
> What about AsteriskNow, can it support?

AsteriskNOW is a GUI on top of Asterisk; it does not change the ability 
of the system to handle call load.

Modern versions of Asterisk can easily handle 2,000 simultaneous calls, 
even with media (non-transcoded) passing through the server. We have a 
community member who has improved chan_sip in Asterisk 10 (and later) to 
be able to handle 10,000 simultaneous calls.

Handling 20,000 registrations is probably more of a concern for Asterisk 
at this point; I've never heard of anyone attempting to handle that many 
on one system.

In spite of all this, though, the other advice you've received in this 
thread is sound: even if a single system can handle the load, doing so 
is asking for a major problem if that system experiences a failure. 
You'd be much better off to at least split the load across two machines, 
both of which should be large enough to handle the entire load when 
necessary.

-- 
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
Jabber: kfleming at digium.com | SIP: kpfleming at digium.com | Skype: kpfleming
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
Check us out at www.digium.com & www.asterisk.org