[Asterisk-Users] Scalable IVR

[Scott Stingel]

Hi Digvijay-

I have done something similar to what you're looking to do, so maybe I can
help you.  I currently have a system that takes up to 600 simultaneous IVR
calls, supplied by a large private DMS-100 PBX over 20 E1 spans.  I think my
load is a little higher than yours however, because the calls typically are
very short (5 seconds).

Here's a summary of what I've found - please contact me directly for more
detail:

I suggest:
* Use 1 processor (example: 2.8Ghz P4) for every 4 E1's (example:  one
TE405P card) when you have that much call setup traffic.

* Try to do as much as possible using the dialplan (extensions.conf). AGI
scripts are very powerful but cost you in performance when you're running
large numbers of lines.

* For the processor to use, see the Wiki for suggestions.  I've used P4 and
Xeon based Tyan and Intel motherboards with success.

* Where you get the hardware depends of course on where you are located.

Good luck!
Scott Stingel



Scott M. Stingel 
Emerging Voice Technology Inc.
Palo Alto, California and London, England

Email:          scott at evtmedia.com  
URL:            www.evtmedia.com  


-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of digvijay singh
Sent: Friday, May 14, 2004 10:37 AM
To: Asterisk-Users at lists.digium.com
Subject: [Asterisk-Users] Scalable IVR

Hi,
I am an asterisk newbie and looking around for information . I wish someone 
could take their valuable time off to answer my query in detail.
I wish to set up an IVR system that can allow user authentication and 
therefter accept 2-3 inputs from users ..generate a key and transmit the 
same in voice back to the user .
The system will intially have small load but if  the whole package in future

may have huge loads .. from 1000 to 10000 simultaneous peak time callers 
with 1 minute duration calls ( just to mention how scalable we would ideally

desire it to be )
At present we would need a maximum of 10 simultaneous users peak load 
capability.
>From what i know so far asterisk is the most cost effective and sound 
option.
Now to my question..
1-) What would be the hardware requirements in these different cases
a-) for a single analog phone line for demo purposes intially to
b-) a peak time 10 simultaneous calls facility and later
c-) going upto 10,000 simultaneous calls scalability
2-) Where can i procure the hardware from
I was thinking of taking  30 access channels of 64 Kbps and 1 signalling 
channel of 64 Kbps (30B + D). for an ISDN compatible EPABX
Kindly let me know of your opinion
Thanks
digvijay

_________________________________________________________________
Easiest Money Transfer to India. Send Money To 6000 Indian Towns. 
http://go.msnserver.com/IN/48198.asp Easiest Way To Send Money Home!

_______________________________________________
Asterisk-Users mailing list
Asterisk-Users at lists.digium.com
http://lists.digium.com/mailman/listinfo/asterisk-users
To UNSUBSCRIBE or update options visit:
   http://lists.digium.com/mailman/listinfo/asterisk-users