PRI Question - How many numbers??

[PowerSurger]

Let's say you have approx 600 users and you are looking at rolling out a VOIP system. How many PRI's would you need to accomodate 600 users? Does anyone know how many #'s you can put on a PRI without significantly degrading service for your network.

 

[AuditSimon]

It would depend on the volume and duration of calls that you are expecting for your 600 users. The numbers aren't the problem, it's the amount of channels that you require.

Do a Google search for Erlang Calculator and you'll find lots of useful tools for capacity calculation.