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Will my terminal work with a VOIP connection?

Since the emergence of VOIP phone systems in the business world, this has been a common question.

Most credit card terminals will not work with a VOIP telephone connection. A VOIP connection uses a digital phone network which involves switches and multiplexing to transfer data. Most credit card machines use an analog type connection that is incompatible with a digital circuit.

The easiest way to use a broadband connection is to use a Verifone VX 570 with an ethernet adapter. This terminals will plug directly into your router or switch allowing you to process over your internet connection.

It may be possible to use an analog to digital converter, but since this is a very expensive and technically advanced process it is not documented or recommended.