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Nationwide and around the world, instant messaging use is growing, with more than 7 billion instant messages being sent every day worldwide, according to IDC. comScore Media Metrix reports that there are 250 million people across the globe--and nearly 80 million Americans--who regularly use instant messaging as a quick and convenient communications tool. Google Talking takes communication to the next level, combining the awesome power of Text and Voice! This book teaches readers how to blow the lid off of Instant Messaging and Phone calls over the Internet.This book will cover

Instant messaging. --- Internet telephony. --- Google.

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Voice Over Internet Protocol Security has been designed to help the reader fully understand, prepare for and mediate current security and QoS risks in today's complex and ever changing converged network environment and it will help you secure your VoIP network whether you are at the planning, implementation, or post-implementation phase of your VoIP infrastructure.* This book will teach you how to plan for and implement VoIP security solutions in converged network infrastructures. Whether you have picked up this book out of curiosity or professional interest . . . it is not too late t

Internet telephony --- Working (Telecommunication) --- Security measures. --- orking (Telecommunication)

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Voice Over IP (VoIP) phone lines now represent over 50% of all new phone line installations. Every one of these new VoIP phone lines and handsets must now be protected from malicious hackers because these devices now reside on the network and are accessible from the Internet just like any server or workstation.This book will cover a wide variety of the publicly available exploit tools and how they can be used specifically against VoIP (Voice over IP) Telephony systems. The book will cover the attack methodologies that are used against the SIP and H.323 protocols as well as VoIP network

Internet telephony --- Telecommunication. --- Security measures. --- Information Technology --- General and Others

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Asterisk Hacking shows readers about a hacking technique they may not be aware of. It teaches the secrets the bad guys already know about stealing personal information through the most common, seemingly innocuous, highway into computer networks: the phone system. The book also comes with an Asterisk Live CD (SLAST) containing all the tools discussed in the book and ready to boot!This book shows readers what they can do to protect themselves, their families, their clients, and their network from this invisible threat. Power tips show how to make the most out of the phone system a

Internet telephony. --- Internet telephony --- Electrical & Computer Engineering --- Engineering & Applied Sciences --- Telecommunications --- Internet-based telephony --- Internet phone --- Internet telephone --- IP telephony --- Voice over IP networks --- Telephone systems

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Today's businesses, big and small, are faced with the large scale restructuring concerning daily communications. Enterprises are moving from the standard wired telephony to wired and wireless communication via internet protocol (IP), Wi-Fi, and cellular services. With the stabilization of these networks and the availability of dual-mode handsets multimodal voice mobility networks are becoming low cost and highly effective. This book provides practical advice on breaking down implementation and deployment. Scalable voice mobility solutions are analyzed and optimized dependent upon avail

Mass communications --- English language --- Engineering --- Information Technology --- Electronics --- General and Others --- Wireless communication systems. --- Internet telephony.