See Voice over Internet Protocol
Technology that provides a business with voice-over-Internet protocol (VOIP) services. An IPPBX converts analog voice input into digital signals to be sent over the Internet, then converts digital voice input back into analog signals.
(Internet Protocol Private Branch Exchange) - a PBX that has the ability to send a VoIP voice stream over a LAN/WAN circuit.
A Private Branch Exchange (PBX) is an internal telephone system within a company that switches calls between internal lines while allowing all users to share a certain number of external phone lines. The primary role of the PBX is to save the cost of requiring a separate telephone line for each user.
An enterprise-based IP data network device that switches VoIP telephone traffic. Natural MicroSystems
