The number of worldwide VoIP customers is well over 38 million. Thanks to the popularity of inexpensive, high-quality services, it's projected to increase to nearly 250 million within the next three years. The VoIP Handbook: Applications, Technologies, Reliability, and Security captures the state of the art in VoIP technology and serves as the comprehensive reference on this soon-to-be ubiquitous technology. It provides: A step-by-step methodology to evaluate VoIP performance prior to network implementation An invaluable overview of implementation challenges and several VoIP multipoint conference systems Unparalleled coverage of design and engineering issues such VoIP traffic, QoS requirements, and VoIP flow As this promising technologyas popularity increases, new demands for improved quality, reduced cost, and seamless operation will continue to increase. Edited by preeminent wireless communications experts Ahson and Illyas, the VoIP Handbook guides you to successful deployment.Botnets are normally controlled through Internet relay chat (IRC) channels where bot-infected machines listen for ... VoIP applications such as Vonage and Skype could provide better opportunities to attackers for controlling their ... 20.3.5 Spam over VoIP Another latent problem is spam (i.e., unsolicited bunk messages).
|Author||:||Syed A. Ahson, Mohammad Ilyas|
|Publisher||:||CRC Press - 2008-12-18|