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There are 1,000-page books about telephone systems, and there are 50-page reference pamphlets about a single protocol, like SIP. When writing a book like this, it's a challenge to strike a balance between the unwieldy tome that's filled with countless details of trivial import and a crash-course FAQ that
To address this, the book is rather detailed on certain subjects and rather brief and
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My first noncurricular writing was a short science
More recently, my reading and writing have been of an entirely different sortthe vocational
When given the opportunity to write about Voice over IP for O'Reilly, it was an easy decision. I had just completed the first phase of an ambitious telephony conversion on a large construction contractor's network, and I was looking for standards-advocating documentation to help me architect the
I learned a lot about VoIP while writing this book, and I hope it engages you in the subject as much as the writing process engaged me in it. VoIP is a technology family that I feel very passionately about. It has the
Switching to VoIP was made possible only with the efforts of quite a few contributors, from editorial supervision to illustrators to technical reviewers. In particular, Mike Loukides, this book's editor, kept me focused like a laser on the things that mattered and steered me away from the things that didn't (such as my original proposal for a detailed description of the telegraph). Interestingsure. But not at all useful. The technical reviewers who participated were outstanding as well. Every one of them a master of gracious criticism, the review team improved this book immensely, fixing my technical faux pas, and offering ideas I hadn't even thought of. The review team included these immensely talented networking pros: Bernard Hayes, Ryan Courtnage, Jason Becker, Rich Adamson, Jim Van Meggelen, Jason Gintert, Jared Smith, and Todd Nathan.
A number of corporate
My son Jacob,