[asterisk-users] asterisk sizing for play and dtmf detection

[nik600]

Dear all

i'm planning a migration to asterisk for a high volume IVR service
(from 1000 to 1500 concurrent call)

The IVR service is based only on DTMF tones so the features required is

- play feature
- dtmf detection

Asterisk will receive calls via VOIP (SIP with g711 codec)

The IVR service wil be a static service based on Asterisk dialplan
with some prompt (from 0 to 5, play of files in the same codec of the
received call) and some dtmf detections.

How many simultaneous call can i handle per server? each server will have:

4 core 3.0 Ghz
4 GB of RAM

I need an aproximate sizing:

0-100 calls per server ?
100-200 calls per server ?
200-300 calls per server ?
300-400 calls per server?
400-500 calls per server?

Thanks to all in advance

-- 
/*************/
nik600
http://www.kumbe.it