How Many Concurrent Calls will support AsteriskNOW 1.5.0

We want to implement a new VoIP environment with AsteriskNow 1.5.0.

Here I need help for the following questions:

How many concurrent calls will support AsteriskNow 1.5.0?
Is it support for the FAX service?

There is a separate sub-forum for AsteriskNow.

The number of calls depends on your hardware and on the services that Asterisk is providing for the calls.