Voice and Video Conferencing Fundamentals
March 14th, 2010 | 
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Voice and Video Conferencing Fundamentals Design, development, selection, deployment and support of advanced IP-based audio and video conferencing systems Scott Firestone, Thiya Ramalingam, Steve Fry As audio and video conferencing move rapidly into the mainstream, customers and end users demand unprecedented performance, reliability, scalability and security. In Voice and Video Conferencing Fundamentals, three leading experts systematically introduce the princ. . . more>>
Voice and Video Conferencing Fundamentals
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Here is a technical proposal from Cisco, said that voice and video conferencing. Perhaps the best aspect that the thick, voluminous-encoding standards that are almost in their original documents are not readable summary. The book is aimed at programmers addressed. It explains the ideas in the coding for video compression algorithms used. Very sophisticated and computationally intensive steps to squeeze out as much redundant information in two consecutive frames as possible.
This is too easy to encode and decode video. Then, the book also deals with the Realtime Transport Protocol and the Session Initiation Protocol. The basis for VoIP. Though perhaps not surprisingly, VoIP does not seem to mention Garner.
The book is useful, and not limited to Cisco products. The descriptions are Germane products for branches in this area. Because Cisco leadership in Internet routing, it is commendable that it provides an authoritative text like this book.
Rating: 4 / 5
Are you a network or system administrator? If you are, then this book is for you. Authors Scott Firestone, Thiya Ramalingam and Steve Fry, have outstanding work to write a book for those who are involved in the design, development, deployment and support of audio and video conferencing products performed.
< br /> Firestone, Ramalingam and Fry, begin with the review of basic concepts of the conference, describes the various types of conferences and the features found in each. As the authors review conferencing system design and the underlying components used in their construction. Next, they discuss the basics of video compression algorithms that are used by four major codecs: H. 261, H. 263, H. 264 and MPEG-4 Part 2. The authors also discuss the basics of Real-time Transport Protocol (RTP) and Real-time Transport Control Protocol and their usage in conferencing systems. Proceed with the discussion of the foundations of the Session Initiation Protocol (SIP) and its relevance to audio and video conferencing. Then the authors provide a brief overview of the H.323 protocol, with an emphasis on conferencing systems. First, they analyze the end-to-end data pipeline, a video conferencing system and discuss the process of achieving lip synchronization in an RTP-based video conferencing product. Finally, the authors go into depth on many aspects of video conferencing security, including encryption, authentication, attack prevention, firewall traversal and network-level hardening.
The goal of most excellent book is to provide an understanding of different video conferencing deployment models, including centralized and distributed architectures, using concrete examples. Perhaps more importantly, this book provides a comparison of the most commonly used video codecs, in a concise reference format.
Rating: 5 / 5