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Internet Telephony and Voice over IP (VoIP) is the name given to the range of technology used to allow telephone calls to be sent over the Internet rather than the normal public telephone network as run by a service provider such as BT. Today it is one of the most important technologies in existence and is being implemented on corporate networks around the world at an unprecedented rate. This one day executive overview explains the technology and jargon behind Internet Telephony/VoIP, as well as the commercial aspects of implementing this technology.
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