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<div class="moz-cite-prefix">Le 08/03/2013 13:17, Leandro Dardini a
écrit :<br>
</div>
<blockquote
cite="mid:CAOoW2haZ=1PQ3J7H4zNn1u2ZWaZxYqZTS+M_6GRwb5nsY5nM3g@mail.gmail.com"
type="cite"><br>
<br>
<div class="gmail_quote">2013/3/8 nik600 <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:nik600@gmail.com"
target="_blank">nik600@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
Dear all<br>
<br>
i'm planning a migration to asterisk for a high volume IVR
service<br>
(from 1000 to 1500 concurrent call)<br>
<br>
The IVR service is based only on DTMF tones so the features
required is<br>
<br>
- play feature<br>
- dtmf detection<br>
<br>
Asterisk will receive calls via VOIP (SIP with g711 codec)<br>
<br>
The IVR service wil be a static service based on Asterisk
dialplan<br>
with some prompt (from 0 to 5, play of files in the same codec
of the<br>
received call) and some dtmf detections.<br>
<br>
How many simultaneous call can i handle per server? each
server will have:<br>
<br>
4 core 3.0 Ghz<br>
4 GB of RAM<br>
<br>
I need an aproximate sizing:<br>
<br>
0-100 calls per server ?<br>
100-200 calls per server ?<br>
200-300 calls per server ?<br>
300-400 calls per server?<br>
400-500 calls per server?<br>
<br>
Thanks to all in advance<br>
<br>
--<br>
/*************/<br>
nik600<br>
<a moz-do-not-send="true" href="http://www.kumbe.it"
target="_blank">http://www.kumbe.it</a><br>
<br>
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</blockquote>
</div>
<br>
<div>The bigger server I have has 150 max channels during peak
hours and has a max load of 0.5 with 24 cores. When I was using
a 4 cores server with the same number of channels, I get a load
of 3 ... so the load x core relation is valid. I think it will
be good to have a load not over 4 for a 4 core server, so you
can have at least 200 active channels on the server. If you
accept more load, then you can get more channels.</div>
<div><br>
</div>
<div>Leandro</div>
<br>
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</blockquote>
<br>
Hello,<br>
<br>
Although I don't have any figures to show you, I totally agree on
the Leandro load advice. <br>
Basically if you want to keep your system totally real-time (as any
VoIP related server/platform/system), you definitely want to keep
your server load below the total number of core of your physical
machine.<br>
<br>
Also, this might look obvious but unless you test and check it for
real (Asterisk on a host with a setup as said above, 4c 3GHz), you
can't trust at 100 per cent any recommendation. <br>
Every environment is different (either the host and the service
running -IVRs in your case). I'd say 300+ simultaneous calls per
server could be reached with your setup though.<br>
<br>
br,<br>
Florent<br>
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