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Preface
|
xix
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Acknowledgments from Jim Van Meggelen
To David Duffett, thanks for the chapter on internationalization, which properly
looks at this technology from a more global perspective.
Thanks to Leif Madsen, Jared Smith, and Russell Bryant, for your contributions to the
previous editions of this book. It was fun flying solo, but I can’t deny I missed you
guys!
Specific thanks to Matt Fredrickson and Matt Jordan of Digium, who generously
shared their time and knowledge with me, and without whom I would have been lost.
Thanks guys!
Thanks to my editor, Jeff Bleiel, for keeping me on track and helping me make impor‐
tant decisions about the content and pacing of the book.
Also thanks to the rest of the unsung heroes in O’Reilly’s production department.
These are the folks that take a book and make it an O’Reilly book.
Thanks especially to Joyce Wilmot and Dan Jenkins, my technical review team, for
taking the time to work through the book and provide essential feedback.
Thomas Cameron of RedHat generously shared his knowledge of Selinux with me,
and helped to demystify a Linux component that is too often left disabled.
Everyone in the Asterisk community also needs to thank the late Jim Dixon for creat‐
ing the first open source telephony hardware interfaces, starting the revolution, and
giving his creations to the community at large.
Finally, and most importantly, thanks go to Mark Spencer, the original author of
Asterisk and founder of Digium, for Asterisk, for Pidgin, and for contributing his
creations to the open source community. Asterisk is your legacy!
xx
| Preface
CHAPTER 1
A Telephony Revolution
We are what they grow beyond. That is the true burden of all masters.
—Jedi Master Yoda
When we first set out in 2004 to write a book about Asterisk (15 years ago as of this
edition!), we confidently predicted that Asterisk would fundamentally change the
telecommunications industry. Today, the revolution we predicted is a part of history.
Asterisk has been the most successful private branch exchange (PBX) in the world for
several years now, and is an accepted technology within the telecommunications
industry.
The revolution—as necessary as it was to the telecommunications industry of that
time—has tailed off significantly simply because the methods by which people like to