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Voice Over 802.11

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Book Description

Wi-Fi can further enhance your organization’s productivity and savings by increasing portability and eliminating charges for PBX maintenance and for wire-line and cellular phone service. However, concerns about the QoS of Wi-Fi and VoIP prevent many organizations from realizing the full savings and productivity improvements that Wi-Fi can deliver. This guide to deploying Wi-Fi telephony helps you overcome these concerns by showing in detail how to engineer each component of Wi-Fi for reliable, high- quality voice transmission.

Thisinformative reference reveals how Voice over Wi-Fi is a scalable, securenetworking solution that supports today’s demanding application needs. The bookexplains the ins and outs of the 802.11 standard, Softswitch architecture andapplications, and related transport network technology so you can deployfull-featured Wi-Fi that has optimum range and signaling. You also learn theeconomics of 802.11 and Softswitch so you can measure the cost savings andreturn on investment of deploying Wi-Fi.

Contents:

ThePSTN Today - Access. Switching. Transport.

AlternativeAccess-802.11 - What is 802.11b and How Does It Work? Wireless NetworkArchitecture. 802.11b and Associated Protocols. Voice over IP (VoIP).

Switching - TDMSwitching. Softswitch Architecture. Applications for Softswitch. PerformanceMetrics for Class 4 and 5 Switches versus Softswitch. SIP as SoftswitchSolutions. Conclusion: Softswitch Bypasses PSTN Switching.

Objectionsto Vo802.11 - Quality of Service (QoS) on 802.11 Networks. Objections toSoftswitch and VoIP.

Transportfor a Vo802.11 Network - Introduction to the Internet Protocol. Introduction toIP Backbones. SONET. DWDM. QoS on IP Networks. Availability. Bandwidth andMarketing Challenges. Alternatives to Fiber Optic. Conclusion.

EconomicAspects of Vo802.11 - Enterprise Applications. Public Networks. Economics ofSoftswitching in Vo802.11 Networks. Regulatory Implications.

Conclusion - PSTNInfrastructure is Aging. PSTN Infrastructure Cannot Economically Offer RealBroadband. Carriers Abandoning 3G for 802.11. The Time for a NetworkAlternative.

Frank Ohrtman is director of MannazConsulting, which specializes in sales, marketing and engineering oftelecommunications systems. The author of several books on telecommunications,he holds an M.S. in telecommunications from the University of Colorado.

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