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What Is IP Telephony?
IP telephony (IPT) allows the combining of separate voice and data
infrastructures onto a single, converged network. The resulting network can
support phone communications with the same quality and reliability as traditional
telephone company-provided circuit-switched voice networks. The biggest bonus
is that IPT also adds support for applications that deliver a richer, sometimes more
streamlined, communications experience to its users.
IPT runs over a local area network (LAN). Therefore, it is well-suited for
communications within a building or between buildings scattered across a
campus. ...