دانلود کتاب Voice over Internet protocol (VoIP) technologies

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Your complete guide to Voice over Internet Protocol Looking for a reference on Voice over Internet Protocol (VoIP)? VoIP Technologies, your complete guide to Voice over Internet Protocol (VoIP), provides a comprehensive foundation of VoIP technology, as well as the knowledge necessary to successfully support any VoIP product. Designed for those who have a working knowledge of data, this guide examines the major components of VoIP networks, the incorporation of VoIP into a data network, packaging and transmitting voice, maintaining voice quality, and addressing traffic issues. Many other topics are also discussed in this section, including VoIP standards, protocols, and configuring networks for VoIP. The second half of the guide focuses on designing and supporting complex VoIP solutions encountered in Wide and Local Area Networks (WAN and LAN). This guide will also help to prepare you for the Technology Standards and Protocols for IP Telephony Solutions (920-803) and Technology Standards and Protocols for Converged Networks (920-804). Nortel Professional Certification exams. Key Topics: - Major components of the VoIP network - Voice packetization - Voice quality - Bandwidth - Quality of Service (QoS) - Traffic convergence issues - VoIP standardization and signaling protocols - Managing VoIP networks - Security in the VoIP environment - Emergency services in the VoIP environment - Technology standards and protocols for converged networks - Network assessment Today an understanding of VoIP is essential, because it allows network operators to lower operations costs and take advantage of advanced applications. The VoIP Technologies guide will provide you with the knowledge you need to understand VoIP, support a wide-variety of VoIP products, and prepare for Nortel Professional Certification exams