VoIP Service Quality (McGraw-Hill Networking Professional) - Hardcover

Hardy, William

9780071410762: VoIP Service Quality (McGraw-Hill Networking Professional)

Hardcover

ISBN 10: 0071410767 ISBN 13: 9780071410762

Publisher: McGraw-Hill Education, 2003

VoIP is the next big advance in telecommunications, but it is exceptionally hard to implement. The very things that make our telephones so comfortable to use--instant connections, strong clear signals, and no downtime--are the things data networks sacrificed for speed and flexibility. As we begin to replace traditional phone service with voice over data networks, quality assurance has to be re-invented. Telecom managers didn't design VoIP, but they're the ones responsible for quality and they have to come up to speed fast on the measurements, tools, and utilities in the IP environment that can help to get the job done.

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From the Back Cover:

VoIP SAVINGS AND FLEXIBILITY! TELEPHONE-LINE QUALITY?

Despite the features that make Voice over IP so attractive from the standpoint of cost and flexibility of telephone services, businesses will only adopt it once they’ve determined whether, and under what circumstances, the quality of VoIP will be satisfactory to users. In these pages you’ll find everything you need to know to answer those questions, both now and in the future as other packet-switched voice services emerge.

This in-the-trenches guide supplies you with all the tools you need for VoIP service quality analysis, including explicit directions for:
* designing subjective tests and interpreting results
* selecting, extending, and applying speech distortion and multiple effects models
* examining call set-up times for IP telephony
* determining requirements for multimedia exchanges.

Without hokum, hype, or obscure tech talk, Hardy delivers solid information on means of measuring, assessing, and improving VoIP quality. He gives you expert information and hands-on specifics, showing you:
* The factors that can create a negative caller experience and how packet switching affects them
* What to look for in assessing VoIP quality
* How to elicit and interpret user evaluations of voice quality
* How to estimate likely user perception of voice quality by objective test and analysis
* When and how to apply alternative quality measurement techniques to overcome quality shortfalls.

Get wireline quality from VoIP service with clear guidance from a world-class expert in analysis of service quality.

About the Author:

William C. Chris Hardy, Ph.D., was for more than 10 years Executive Staff Analyst for Measures and Analyses at MCI, responsible for evaluating user perception of the quality of telephone services. He has 35 years experience in communications analysis, holds 10 patents for communications test and analysis technology, and is an internationally recognized expert in measurement and analysis of communications service quality. He lives in Dallas, Texas.

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