Ebook Free Voice & Data Internetworking, by Gilbert Held
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Voice & Data Internetworking, by Gilbert Held
Ebook Free Voice & Data Internetworking, by Gilbert Held
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Amazon.com Review
High-speed networking infrastructures have immense potential, but most organizations don't take advantage of it. Voice and Data Internetworking tries to bridge the gap by showing you first of all how to configure your Internet Protocol (IP) networks to handle real-time voice conversations. About half of the book addresses academic (but important) material, including the suitability of IP and Transmission Control Protocol (TCP) to voice and the various approaches to the problem of digitally encoding human speech. When the text digs into specific mechanisms for transporting voice over networks designed for data traffic (Frame Relay and ATM particularly), specific configuration instructions are skimped on in favor of how the protocols work and how they need to be adapted to the special characteristics of voice, in addition to the economics of voice over IP. There are charts that show how the cost-effectiveness of such systems grows with call volume, plus other charts that show how much time typical employees spend on the phone. This material would be useful in a feasibility study of voice over IP for a large enterprise. The book also has lots of information (and opinions) on specific products and services. --David Wall Topics covered: The business case for voice over IP, operational details of the TCP/IP protocol suite, IPv4 and IPv6 packet structure, voice and technologies for digitally encoding it, Frame Relay, and Asynchronous Transfer Mode (ATM).
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Product details
Series: McGraw-Hill Series on Computer Communications
Paperback: 452 pages
Publisher: McGraw-Hill Companies (September 17, 1999)
Language: English
ISBN-10: 9780072122169
ISBN-13: 978-0072122169
ASIN: 0072122161
Product Dimensions:
9.2 x 7.3 x 0.9 inches
Shipping Weight: 1.5 pounds (View shipping rates and policies)
Average Customer Review:
3.5 out of 5 stars
2 customer reviews
Amazon Best Sellers Rank:
#2,170,588 in Books (See Top 100 in Books)
The author's background explanation of IP was a nightmare.His insistance that UDP is a member of the TCP/IP protocol suite is such a skewed perspective that it made me wonder if he had any competence with IP at all and made me suspicious of the remainder of the material. If he held this viewpoint for some reason (historical, or otherwise and not simply complete ignorance of the subject matter) I somehow missed that.The editing was atrocious, which didn't help at all.The author provides his e-mail to give comments and feedback, which I tried to do when I found that I had so many notes and errata that I was having trouble writing them all down in the book's jacket. However the e-mail addresses given for the author are no longer working. (Perhaps wisely!)The first 3 chapters were a garbled intro to IP.The sections on speech production and digitization in Chapter 4 were very good. Chapter 5 on telephony was a good chapter. Chapter 6 included a nice simple explanation of SIP.Chapter 7 was about VoIP equipment which is probably OBE.Chapter 8 was a complete joke. Explaining ping and traceroute, which should probably have been covered in the beginning sections on IP, but which most likely was boiler plate from other publications by this author.I got this book free from Cisco and it was worth every penny.
I normally do not write reviews but when I noted a person said this book was for a 'housewife' and gave it one star I thought something was amiss. I found this book to be very practical, with numerous examples that show 'how to do it.' I purchased other books on this topic and found them to be filled with standards literature from the ITU. Thus, I was perplexed how someone could rate this book with one star when its significantly better that the others that spend most pages repeating ITU specifications.
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