PBX In a Flash System and Network Requirements

[kc0tlh]

Background:

I have been using PBX In a Flash for a while now at my workplace to handle a very tiny call volume. I am now considering setting up a server and providing business phone service to small local businesses via VOIP.

Questions:

1. What are recommended system requirements for PBX In a Flash?
2. Do these requirements change significantly based on the call volume?
3. How much bandwidth is required for a SIP or IAX2 call?
4. Does this number stay constant? (For Example: If 20 more calls are taking place do you need 20X the bandwidth?)
5. With the above questions in mind what do you think abut a dedicated hosting service like this:http://www.esecuredata.com/Pricing/Servers.aspx ?
Has anyone tried this?

Thanks a lot for any help.

 

[jroper]

1. That would depend on the number of concurrent calls.
2. Yes it does, up to certain limits, see http://www.voip-info.org/wiki/view/Asterisk+dimensioning as a guide
3. Uncompressed, budget for 100kb/sec (actually about 84Kb/s) per call - see here - http://www.asteriskguru.com/tools/bandwidth_calculator.php
4. See above
5. That would work well.

Also consider looking at A2Billing for terminating your calls, and rating them.

http://www.star2billing.com/Products

Yours

Joe