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Voice Over WLANS: The Complete Guide

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Overview

For networking and RF/wireless engineers, and graduate students who want a solid overview of voice over WLANs/VoIP technology (wireless local area networks / voice over internet protocol), this book covers voice coding, packet loss, delay and 'jitter', and 'echo' control, and shows how to combine both WLAN and VoIP technology to create effective voice over WLAN systems. Finneran also describes how to integrate voice over WLAN systems with cellular networks.

This is not just another WLAN-only book nor a VoIP-only book; instead, it integrates both topics into a coherent whole.

• Gives complete details on integrating voice and data services on WLANs, including wide area networks
• Explores quality of service (QoS) and security issues
• Step-by-step descriptions of how to plan and implement voice over WLAN networks

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Product Details

  • ISBN-13: 9780750682992
  • Publisher: Elsevier Science
  • Publication date: 12/10/2007
  • Series: Communications Engineering Series
  • Pages: 400
  • Product dimensions: 7.50 (w) x 9.25 (h) x 0.86 (d)

Table of Contents

The Convergence of Wireless LANs and VoIP; Wireless LAN Switches; 802.11 Radio Link Specifications; Media Access Control Protocol; Privacy and Security Issues in WLANs; Voice Over IP; Quality Issues in IP Telephony; Telephone System Design/Voice Traffic Engineering; WLAN Voice Configuration; Technical Requirements for WLAN Voice; Designing a Wireless LAN for Voice; Network Management Issues in Wireless LANs; WLAN/Cellular Integration: Products and Strategies

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  • Posted December 30, 2008

    Absolutely Essential

    The subject of Voice over WLAN (VoWLAN) is a tough one to get your mind around as it involves the convergence of two evolving technologies, Voice over Internet Protocol (VoIP) and Wireless Local Area Networks (WLANs). VoIP is rapidly replacing circuit-switched voice in the public switched telephone network (PSTN), where most of the kinks have been worked out. VoIP also is making inroads into the premises. While there remain considerable kinks in this domain, LAN-based IPBXs now are gaining serious ground against conventional PBXs, hybrids and key systems, many of which are past retirement age. WLANs have become almost ubiquitous and 802.11n promises much increased bandwidth and range due in considerable measure to MIMO antenna technology. Putting it all together involves converting the most demanding stream-oriented application of all (i.e., analog voice) to a digital data format, compressing it, packetizing the resulting data stream using a connectionless network protocol (IP), switching it through an Ethernet LAN that was never intended for such nonsense and adding the uncertainty of wireless (radio) transmission links just to make it a little more challenging. This is not an endeavor for the uneducated or faint of heart, which is where Michael Finneran and this book come in. <BR/><BR/>Voice over WLANs: The Complete Guide is an apt title, for the book is a thorough treatment of the subject that will guide just about anyone through the background, underlying technologies, planning processes and managerial issues associated with VoWLANs. Finneran begins with an insightful overview on the convergence of WLANs and VoIP. He then patiently and thoroughly builds the necessary technical foundation in radio transmission, WLAN components, media access control protocols, and privacy and security issues. His explanation of the IP protocol suite and its application in voice routing and QoS management is at just the right level. Drilling deeper into the subject, he guides the reader through network design, traffic engineering, VoWLAN configuration, fixed-mobile convergence (FMC), and network management, all of which is pretty technical fare, but Finneran presents it in such a way that it goes down easily. <BR/><BR/>Finneran has a well deserved reputation as a master communicator, both in person and in print. He avoids the temptation to impress us with his considerable intellect, preferring to exercise his unique ability to translate highly technical subject matter into plain-English, absolutely understandable and even friendly terms. Those of us who know Mike Finneran or are familiar with his work have come to expect nothing but the best from him. This book does not disappoint. Voice over WLANs: The Compete Guide is absolutely essential for anyone with a need to know about VoWLANs at a practical level.

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