Practical Voip Using Vocal: Mgcp, H.323, Sip, Rtp, Cops, Radius, and More...

by Cullen Jennings, Luan Dang, David Kelly

While many books describe the theory behind Voice over IP, only Practical VoIP Using VOCAL describes how such a phone system was actually built, and how you too can acquire the source code, install it onto a system, connect phones, and make calls.

VOCAL (the Vovida Open Communication Application Library) is an open source software project that provides call control, routing, media, policy, billing information and provisioning on...

• Format: Paperback
• Language: English
• ISBN: 0596000782
• ISBN13: 9780596000783
• Release Date: August 2002
• Publisher: O'Reilly Media
• Length: 528 Pages
• Weight: 1.90 lbs.
• Dimensions: 1.1" x 7.0" x 9.1"

Customer Reviews

a credible open source implementation

VoIP usage is surging amongst many users worldwide. A pack of startups has been established; each trying to dominate this field. And ATT and other large phone companies are also starting to jump in. With all this, the average VoIP user expects it to be virtually indistinguishable from an traditional phone experience. Well, that is where this book and you come into the scene. To make that simple user experience requires a huge amount of technical work. The book gives you a detailed appreciation of what that involves. This VOCAL is "only" one VoIP implementation. But it may be attractive, because it is open source. The book's authors were instrumental in designing VOCAL and offer the book as the definitive text on it. They give a lot of functionality, with the added promise that it is very scalable. I cannot discern from the book how VOCAL will fare against well funded proprietary VoIP solutions. But at least VOCAL seems to give them serious opposition, as a credible and free alternative.