PBX stands for Private Branch Exchange. A PBX system is a private internal telephone system that enables internal and external communication. PBX phone systems connect multiple extensions within an office to each other—effectively consolidating multiple phone lines into one—as well as to a small number of outside lines. The typical IP PBX can also switch calls between a VoIP user and a traditional telephone user, or between two traditional telephone users in the same way that a conventional PBX does. Netplus provides pioneering telephony systems that address the communication woes of a growing enterprise/business.