Includes new coverage on the advances in signaling protocols,second-generation switching and the development of non-switchedalternatives, and the implementation

Understand how new network technologies impact VoIP! Voice over Internet Protocol (VoIP) is revolutionizing the way people communicate – both in the corporate

More and more businesses today have their receive phone service through Internet instead of local phone company lines. Many businesses are also using their inte

Now that virtually every leading telecommunications service provider has committed to delivering IP-based telephony services, communications professionals face

"A system administrator's guide to VoIP technologies"--Cover.