This basic PBX IP diagram will help many people see how VoIP actually works. A PBX (Private Branch eXchange) is nothing more that a technology that connects more people and devices to the PSTN network than there are actual outbound phone lines (trunks).

The center of an IP based PBX system is Asterisk. It is an open source software that most commonly runs on Linux. The phones all connect to the same network as the IP PBX, and communicate with it. The PBX in turn connects the devices to the PSTN network either through standard POTS lines with zaptel hardware, or directly to a VoIP provider via SIP trunks that in turn terminates to the PSTN network.

A business VoIP phone system is a perfect solution for your business or small office. These systems are built to help cut the costs of your normal phone bill in half so you can only save money and get more with your service.Since VoIP has become a revolution in the telecom industries, most businesses have started to move toward broadband phone systems called voice over internet protocol. With VOIP technology you will be able to have as many phone lines in your office as you want with unlimited calling features that go above and beyond normal telephone systems.

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