VoIP eBooks

"This book covers a wide spectrum of topics relevant to implementing and managing a modern data center. The chapters are comprehensive and the flow of concepts is easy to understand."-Cisco reviewerGain a practical knowledge of data center conceptsTo create a well-designed data center (including storage and network architecture, VoIP implementation, and server consolidation) you must understand a variety of key concepts and technologies. This book explains those factors in a way that smoothes the path to implementation and management. Whether you need an introduction to the technologies, a refresher course for IT managers and data center personnel, or an additional resource for advanced study, you'll find these guidelines and solutions prov...

Learn how to set up and use TrixBox (formally known as Asterisk@Home) as a traditional and Internet telephone system. The book is written in an easy to follow walk-through style, building up concepts step by step, before guiding you carefully through the planning, deployment, and management of your telephone system. Because the book covers the concepts and practices of both telephony and Asterisk, it is suitable for both professional and home users with no prior telecom experience. It's ideal for any user wishing to set up a telephony system for individual or small business usage. No previous knowledge of Trixbox or networking is required, although some basic knowledge of PBX and Linux would be an advantage....

More and more businesses today have their receive phone service through Internet instead of local phone company lines. Many businesses are also using their internal local and wide-area network infrastructure to replace legacy enterprise telephone networks. This migration to a single network carrying voice and data is called convergence, and it's revolutionizing the world of telecommunications by slashing costs and empowering users. The technology of families driving this convergence is called VoIP, or Voice over IP.VoIP has advanced Internet-based telephony to a viable solution, piquing the interest of companies small and large. The primary reason for migrating to VoIP is cost, as it equalizes the costs of long distance calls, local calls, and e-mail...

Sidestep VoIP Catastrophe the Foolproof Hacking Exposed WayThis book illuminates how remote users can probe, sniff, and modify your phones, phone switches, and networks that offer VoIP services. Most importantly, the authors offer solutions to mitigate the risk of deploying VoIP technologies. --Ron Gula, CTO of Tenable Network SecurityBlock debilitating VoIP attacks by learning how to look at your network and devices through the eyes of the malicious intruder. Hacking Exposed VoIP shows you, step-by-step, how online criminals perform reconnaissance, gain access, steal data, and penetrate vulnerable systems. All hardware-specific and network-centered security issues are covered alongside detailed countermeasures, in-depth examples, and hands-on implem...