[asterisk-users] Maximum number of users

Gareth Blades mailinglist+asterisk at dns99.co.uk
Wed Dec 18 10:08:37 CST 2013

We have a machine with a quad core 'Intel(R) Xeon(R) CPU E5-1410 0 @ 
2.80GHz' running asterisk 11.2-cert with ingress and egress all sip. 
Fastagi running as a daemon (written in perl) performing cdr updates at 
call start, answer and call end together with a query when a call comes 
in to get information on what to do with it. Local Mysql 5.5 database.
With all this we easily handled 450 simultaneous calls with many of them 
also performing call recording. I think we typically had 60% idle on 
each processor so the box could be pushed a lot more.

On 18/12/13 15:46, Tech Support wrote:
>     How did the system behave with 244 calls? I've been able to make 
> 1,024 concurrent faxes (which tend to use more resources than audio 
> calls) in the lab. The problem I had was after the faxes were 
> transmitted, things couldn't keep up and kept dumping core. Two things 
> were going on, (1) the CDR was written to MySQL and (2) a FastAGI 
> script (I use the AGISpeedy PERL package) to write a log entry also to 
> MySQL. I tried switching the CDR's to sqlite and that seemed able to 
> keep up, except that its concurrency issues were a problem. If MySQL 
> is the problem, I could probably optimize it better, but it doesn't 
> explain the Asterisk core dumps. It might be related to the number of 
> FastAGI scripts running, I'm not sure at this point.
> Regards;
> John
> *From:*asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] *On Behalf Of *Keith 
> Sloan
> *Sent:* Wednesday, December 18, 2013 10:10 AM
> *To:* bilal ghayyad; Asterisk Users Mailing List - Non-Commercial 
> Discussion
> *Subject:* Re: [asterisk-users] Maximum number of users
> The better question is,  maximum number of users (IP Phones) can your 
> hardware support. I have * deployments with 300-600 phones. - works 
> fine. though concurrent calls has never seen more then 244. Also at 
> this point I have to ask, for this to be any concern to you, you must 
> either A, Make tons of internal calls. OR B have multiple T1's/lots of 
> sip channels?
> Regards,
> Keith Sloan
> Voice Operations Center
> Vianet
> 705-222-9996 X7203
> 1-800-788-0363 X7203
> keiths at vianet.ca <mailto:keiths at vianet.ca>
> On Wed, Dec 18, 2013 at 9:45 AM, bilal ghayyad <bilmar_gh at yahoo.com 
> <mailto:bilmar_gh at yahoo.com>> wrote:
> Hello;
> Can someone advise me what is the maximum number of users (IP Phones) 
> that can be supported by asterisk 1.8 or later?
> Regards
> Bilal
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