A private branch exchange (PBX) is a private telephony switch inside your company that allows your employees to communicate between themselves and to the outside world. Asterisk is an open source PBX software platform that can run on all major operating systems.
AXvoice Asterisk VoIP service makes a complete business or carrier-class PBX out of an ordinary Linux computer, integrating with telephony networks and voice over IP.
The original purpose of a PBX was to reduce costs for calls within the company and allow line pooling within an enterprise to take advantage of economies of scale that occur as headcounts rise.
But the new Asterisk platform offers features that used to be available only with expensive PBX systems, including: