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Building Telephony Systems with OpenSIPS 1.6

by Flavio E. Goncalves (Author)
4.8 out of 5 stars 4 customer reviews
ISBN-13: 978-1849510745
ISBN-10: 1849510741
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Product Details

  • Paperback: 284 pages
  • Publisher: Packt Publishing (January 20, 2010)
  • Language: English
  • ISBN-10: 1849510741
  • ISBN-13: 978-1849510745
  • Product Dimensions: 7.5 x 0.6 x 9.2 inches
  • Shipping Weight: 1.4 pounds (View shipping rates and policies)
  • Average Customer Review: 4.8 out of 5 stars  See all reviews (4 customer reviews)
  • Amazon Best Sellers Rank: #1,891,793 in Books (See Top 100 in Books)

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Top Customer Reviews

4.0 out of 5 starsGreat Book on OpenSIPS, But Needs Heavy Editing
By Randall Degges on July 29, 2010
Format: Paperback Verified Purchase
I've been working in the telephony industry for several years now, mainly with Asterisk based systems.

My company is currently in need of a SIP proxy to handle load balancing, and least cost routing, so I decided to go with OpenSIPS (which is the most active version of the original OpenSER project today).

This book is the best reference on OpenSIPS available (the official documentation on their website is lacking in many regards), and is worth purchasing if you need to learn how to setup and configure OpenSIPS.

I'll try to give an honest breakdown of my thoughts on the book.

PROS

- Contains extremely detailed configuration file directives. This is probably the bulk of the book (snippets of code from the configuration files). This makes the book worth its purchase price.

- A great introduction to SIP, which discusses the protocol in an unusually simple manner.

- Contains a section on managing OpenSIPS through two different web panels, which is nice for IT people who may need to handle configuration changes from time to time.

- Contains a section on LCR, which is obviously extremely important for modern SIP proxies.

- Contains a section on billing, which is equally important. Most people setting up SIP proxies are VoIP providers, and need to charge for access.

CONS

- Lots of typos and grammatical errors. It is obvious that the author is not a native English speaker. While the text was well written, it should have been heavily edited. A lot of the sentences / paragraphs don't make sense, aren't clear, and are confusing.

- There is not a good explanation of why configuration directives work the way they do.Read more ›
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5.0 out of 5 starsAwesome book. Worth the money.
By Edgar Landivar Ch on November 27, 2011
Format: Kindle Edition Verified Purchase
Easy to read. The author begins by explaining in detail the SIP protocol, abstracting the reader of the always painful RFCs. Then he takes us into the world of OpenSIPS together with a number of practical examples.

The book also covers some aspects of the integration of OpenSIPS with Asterisk, which was precisely what I was looking for.

I highly recommend this book. Worth the money.
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5.0 out of 5 starsOutstanding Reference Material
By Gordon S on June 15, 2014
Format: Kindle Edition Verified Purchase
Its a great read, but more importantly, when your stuck trying to figure something out with the config, you can go back to this and find what you need .
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5.0 out of 5 starsthe best OpenSIPS book I've seen
By Chunky Style on June 9, 2014
Format: Paperback Verified Purchase
It explains the principles of OpenSIPS pretty well. The thing I wish it would do is give examples of full configurations for a variety of scenarios, but there's always the "osipsconfig" utility that installs with OpenSIPS, so maybe we don't need the book to go through it.

I guess it's kind of the norm with software books that they don't quite tell you the thing you want to know, or show you the example you want to see. Maybe the authors know something I don't, and there's no such thing as one-size-fits-all examples.
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