[asterisk-users] 400 calls at g711 how much cpu power

[Martin]

Asterisk max call estimation doesn't scale linearly ... it might in the future
with some fixes they're adding.

For your application you could use some other open PBX that is known not to have
'Asterisk' limitations.

Anyways most people will tell you to simply buy a box and make a test.
Noone knows
the exact numbers since it's dependant on your kernel version/asterisk
version/CPU/motherboard/ethernet card/
memory speed/hdd speed etc.

Just make sure the "message" is encoded in G711 ulaw/alaw so there's
no transcoding... (use sox)

Martin

On Wed, Apr 1, 2009 at 10:46 PM, Erick Perez <eaperezh at gmail.com> wrote:
> We are planning to run an outbound only campaign. A 20-second voice message
> will be played to callers and our dialer on machine1 will send to
> machine2-asterisk (1.4) instructions to dial 400 calls, play the message and
> hang up. This will be done for about 1 million phones.
>
> The asterisk box will communicate via SIP to a voice carrier. the voice
> carrier will then place the calls on pstn. The codec will be g711. So we
> will never do any transcoding.
>
> I have been calculating the CPU power required to do the calls and in
> previous posting the usual calculation is about 40MHZ per leg when no
> transcoding is involved.
> So if we use the 40MHZ rule, we are talking about 40*400=16000MHZ or 1.6Ghz.
>
> Comments?
>
> --
> ------------------------------------------------------------
> Erick
>
> ------------------------------------------------------------
>
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