High-speed networking infrastructures have immense potential, but most organizations don't take advantage of it. Voice and Data Internetworking tries to bridge the gap by showing you first of all how to configure your Internet Protocol (IP) networks to handle real-time voice conversations. About half of the book addresses academic (but important) material, including the suitability of IP and Transmission Control Protocol (TCP) to voice and the various approaches to the problem of digitally encoding human speech. When the text digs into specific mechanisms for transporting voice over networks designed for data traffic (Frame Relay and ATM particularly), specific configuration instructions are skimped on in favor of how the protocols work and how they need to be adapted to the special characteristics of voice, in addition to the economics of voice over IP. There are charts that show how the cost-effectiveness of such systems grows with call volume, plus other charts that show how much time typical employees spend on the phone. This material would be useful in a feasibility study of voice over IP for a large enterprise. The book also has lots of information (and opinions) on specific products and services. --David Wall
Topics covered: The business case for voice over IP, operational details of the TCP/IP protocol suite, IPv4 and IPv6 packet structure, voice and technologies for digitally encoding it, Frame Relay, and Asynchronous Transfer Mode (ATM).
Book Description
Move real-time voice conversations over data networks NOW! Gateways that can transmit voices over data-intensive IP networks will soon give way to translation software that can send voice, fax and video over the Internet. Get a head start on this revolutionary technology with Gilbert Held's Voice & Data Internetworking. Learn how to take advantage of your existing network to make voice calls to and from multimedia-capable PCs, and how to use videoconferencing over existing data networks. You get hands-on guidelines for voice compression and making your transmissions secure from internal and external intruders. Explanations of bandwidth allocation and its importance in voice transmission, the discussion of Voice-Over Frame Relay and Voice-Over IP, and recommendations on equipment available from major vendors round out this up-to-the-minute field report on one of today's most momentous communications trends.
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