دانلود کتاب VoIP Handbook: Applications, Technologies, Reliability, and Security

The number of worldwide VoIP customers is well over 38 million and thanks to popularity of inexpensive, high quality services such as skype is projected to increase to nearly 250 million within the next three years. The future of voice transport has officially arrived. The VoIP Handbook: Applications, Technologies, Reliability, and Security captures the current state of the art in VoIP technology and serves as the comprehensive reference on this soon-to-be ubiquitous technology. It also 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 technology’s popularity increases, new demands for improved quality, reduced cost, and seamless operation will only increase. Edited by preeminent wireless communications experts Ahson and Illyas, the VoIP Handbook guides you to successful deployment.