"Tips & tools for cheap, fun, innovative phone service"--Cover.

This useful book gives Windows power users everything they need to get the most out of their operating system, its related applications, and its hardware.

Voice over Internet Protocol is gaining a lot of attention these days. Both practical and fun, this text provides technology enthusiasts and voice professionals with dozens of hands-on projects for building a VoIP network, including a softPBX.

Presents Linux's multimedia tools with step-by-step instructions to maximize entertainment capabilities for images, audio, and video.

Sidestep VoIP Catastrophe the Foolproof Hacking Exposed Way "This 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 Security Block 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 implementation techniques. Inside, you'll learn how to defend against the latest DoS, man-in-the-middle, call flooding, eavesdropping, VoIP fuzzing, signaling and audio manipulation, Voice SPAM/SPIT, and voice phishing attacks. Find out how hackers footprint, scan, enumerate, and pilfer VoIP networks and hardware Fortify Cisco, Avaya, and Asterisk systems Prevent DNS poisoning, DHCP exhaustion, and ARP table manipulation Thwart number harvesting, call pattern tracking, and conversation eavesdropping Measure and maintain VoIP network quality of service and VoIP conversation quality Stop DoS and packet flood-based attacks from disrupting SIP proxies and phones Counter REGISTER hijacking, INVITE flooding, and BYE call teardown attacks Avoid insertion/mixing of malicious audio Learn about voice SPAM/SPIT and how to prevent it Defend against voice phishing and identity theft scams

The Ability Hacks is the story of two Microsoft hackathon teams, one in the summer of 2014 and one the following summer of 2015. The first would pioneer new software to revolutionize the mobility of tens of thousands of people who live with severe paralysis caused by ALS, Parkinson's, cerebral palsy and traumatic neurological injuries. The second team would pioneer software to help kids with dyslexia read and love learning for the first time in their lives. This is the story of two small groups of driven, focused and passionate software engineers, program managers, marketers and advocates. It's the story of realizing the transformative power of technology for people with disabilities, not just for traditional consumer and industrial markets. It's the story of doing something truly great -- improving outcomes for everyone, discovering a design ethos and blazing a new trail for accessibility. Read more:More than one billion people around the world live with a disability of some kind, and it's estimated two-thirds of us know someone with a disability. Almost everyone will be temporarily or permanently impaired at some point in life, and those who survive to old age will experience increasing difficulties in functioning, according to the World Health Organization. This book explores an optimistic belief that computer software and hardware can empower people with disabilities in a multitude of scenarios. As one engineer interviewed for The Ability Hacks said, "It's not about the technology. It's about the people."