Will this be the year open-source PBX and VoIP systems are ready for their close-up? The opportunity is better than ever, argued attendees at January's Digium Asterisk World conference in Miami.

The features, functions, and architecture designs supporting calls across public or private network carrier facilities determine PBX networking capabilities. The two primary objectives of PBX ...

The basic elements of a PBX private network are PBX switch nodes and tie trunks. Tie trunks are telecommunications channels that directly connect two PBXs. The first analog transmission tie trunks ...