Frank Ohrtman eBooks

Independent of 2.5G, 3G, or any other G, WiFi gives organizations a chance to selectively deploy the converged services not yet available from their carriers. This book, written for network engineers by highly experienced wireless and Ethernet experts, is one of the very first to provide the know-how for enterprise implementations. It drills down to the nuts and bolts of designing and building WiFi networks of scale. It covers all wireless environments that can be built with today's technology. It includes in-depth explanations of regulatory, security, and economic issues, and extended case studies to illustrate implementation advice....

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. This informative reference reveals how Voice over Wi-Fi is a scalable, secure networking solution that supports today's demanding application needs. The book explains the ins and outs of the 802.11 standard, Softswitch architec...