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

Go under the hood of an operating Voice over IP network, and build your knowledge of the protocols and architectures used by this Internet telephony technology.

Go under the hood of an operating Voice over IP network, and build your knowledge of the protocols and architectures used by this Internet telephony technology.

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

This book presents a review of the latest advances in speech and video compression, computer networking protocols, the assessment and monitoring of VoIP quality