What is a PBX?
Modified on: Mon, 13 Jan, 2014 at 4:55 PM
A Private Branch Exchange (PBX) is a telephone exchange supporting a particular network of phone systems. This is opposed to a common carrier supporting many companies or residents at the same time. In most cases, the PBX is an IP-based PBX, communicating with all endpoints over IP, but it may just as well be a traditional digital or analog PBX. The sole requirement is that it is an interface that allows for the routing of calls.
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