Number of PRI's needed

[dennislyon]

Is there a tool or a general rule of thumb to help determine the number of PRI's that may be needed based on the number of calls for a company?

Thanks in advance.

 

[pronei]

What is the max amount of simultaneous calls you see on a very regular basis. Take that number and round that up to the nearest half of the last PRI required. That will be how many B channels you'll need. You'll need about 1 D Channel for every 50-70 or so B channels.

 

[LeeMason]

Have a look at this

http://www.erlang.com/calculator/erlb/

and it should provide you with a reasonable estimate.


Lee Mason
Optimal Projects Ltd

http://www.opl.co.uk

http://www.backupsanywhere.com