Wi-Fi Telephony: Challenges and Solutions for Voice over WLANs

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Overview

Wi-Fi telephony is the latest, most cost effective, and clearest way of carrying voice data wirelessly. The great news is that it can be integrated seamlessly into the same infrastructures as currently used for computer and telephone data.The digital quality is far above current cellular technologies.

This book will be among the first to discuss Session Initiation Protocol (SIP), Quality of Service (QoS), and interoperability in connection with Wi-Fi telephony. Security challenges are also presented and solved along these malleable wireless boundaries. In short, this book provides all the information necessary for effective, reliable, crystal clear Wi-Fi telephony service and implementation.

• Using current telephone and computer infrastructure this technology can be implemented at low cost
• The importance of Quality of Service (QoS) and security of Wi-Fi telephony is considered
• Enhances the clarity of a call beyond a basic cellular phone using digital data transfer

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Product Details

  • ISBN-13: 9780750679718
  • Publisher: Elsevier Science
  • Publication date: 11/8/2006
  • Series: Communications Engineering Series
  • Pages: 288
  • Product dimensions: 7.50 (w) x 9.25 (h) x 0.61 (d)

Meet the Author

David A. Lide currently is a Senior Member of the Technical Staff at Texas Instruments and has worked on various aspects of Voice over IP for the past nine years. Prior to that, he has worked on Cable Modem design and on weather satellite ground systems. He lives with his family in Rockville, Maryland.

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Table of Contents

Chapter 1: The Basics
Chapter 2: The Data World
Chapter 3: Voice over IP
Chapter 4: Wireless Local Area Networks
Chapter 5: VoWLAN Challenges
Chapter 6: QoS & System Capacity
Chapter 7: Security
Chapter 8: Roaming
Chapter 9: Power Management
Chapter 10: Voice over WiFi and other Wireless
Technologies

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  • Anonymous

    Posted January 14, 2007

    CAN YOU HEAR ME NOW?

    Are you an experienced WLAN engineer and administrator? If you are, then this book is for you. Authors Praphul Chandra and David Lide, have done an outstanding job of writing a book about using wireless local area networks to carry human speech and voice. Chandra and Lide, begin by looking at how voice has traditionally been carried over networks. In addition, the authors briefly introduce the packet-based data networks: the Internet. They also take a look at how VoIP works. Then, they discuss the challenges of Voice-over-802.11b networks. The authors then focus on the solutions of the challenges of system capacity and QoS in some detail. Next, they look at WEP, why it fails and what is being done to close these loopholes. Then, they look at some of the issues with roaming in Wi-Fi networks. The authors continue by discussing why a good power-management scheme requires a systems solution to be successful. Finally, they take a look at voice over Wi-Fi in conjunction with other wireless technologies, including proposed 802.11extendsions, cellular, WiMax, Bluetooth, and conventional cordless phone systems. This most excellent book is a very thorough guide to voice over WLANs. Perhaps more importantly, this book will give you the theoretical backgrounds and practical details necessary to design, implement, and maintain the new generation of voice-over-WLAN telephony systems!

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