Three lines into voice over IP
- By John x_Zyskowski
- Nov 05, 2000
n Gateway. A gateway sits between a telephone system, such as a private
branch exchange (PBX) or a central office switch, and a data network, such
as the Internet, and translates calls from one format to another.
n Internet Protocol PBX. An IP, or software, PBX is a specialized computer
system that replaces a company's traditional voice system. The devices support
IP voice transmissions all the way down to a user's desktop.
n Integrated voice and data system. Such systems treat voice over IP
as just another application on a corporate LAN. These systems often have
a number of functions, such as messaging, in a device geared to handle a
company's data and voice needs.