Asterisk NOW.pdf

AsteriskNOW

A practical guide for deploying and managing

an Asterisk-based telephony system using the

AsteriskNOW software appliance

Nir Simionovich

BIRMINGHAM - MUMBAI

AsteriskNOW

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Every effort has been made in the preparation of this book to ensure the accuracy of

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without warranty, either express or implied. Neither the author, Packt Publishing,

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However, Packt Publishing cannot guarantee the accuracy of this information.

First published: March 2008

Production Reference: 1290208

Published by Packt Publishing Ltd.

32 Lincoln Road

Olton

Birmingham, B27 6PA, UK.

ISBN 978-1-847192-88-2

www.packtpub.com

Cover Image by Vinayak Chittar ( vinayak.chittar@gmail.com )

Credits

Author

Project Coordinator

Nir Simionovich

Aboli Mendhe

Reviewers

Indexer

Kimberly Collins

Kristian Kielhofner

Hemangini Bari

Proofreader

Acquisition Editor

Chris Smith

Viraj Joshi

Technical Editor

Production Coordinator

Shantanu Zagade

Akshara Aware

Cover Work

Editorial Team Leader

Shantanu Zagade

Mithil Kulkarni

Project Manager

Abhijeet Deobhakta

Foreword

Asterisk® has grown from the very humble beginnings of being my own PBX

since I couldn't afford to buy one, and has grown into a world-wide phenomenon,

becoming successful due to both the ideas behind it as well as the open-source

development model. The usability and usefulness of Asterisk as part of an IP PBX or

other telephony system versus a proprietary phone system can be compared in part

to the difference between the Betamax and VHS video standards (except, of course

that Asterisk is both the open system *and* the best quality system). Betamax, while

of an initial high quality, was a proprietary system whose technology could only be

advanced by the original creators of the standard. The VHS standard, on the other

hand, was made available to a larger development base and thus resulted in more

innovation and development. The end result was that the open standard surpassed

the proprietary standard in quality, usability, and value. The results are similar

as Asterisk has been adopted by a large development community, and resulted in

innovation and ease of use that has surpassed traditional technologies.

Every business (and for that matter, pretty much every home) needs a phone system

of some level. How to create a system, however, has historically been left to very

technical people (even originally in the case of Asterisk). AsteriskNOW™, a software

appliance which includes Asterisk as well as the AsteriskGUI™, was created in order

to lower the barrier to use and make setting up one's own phone system much less

daunting. In a world of GUI-oriented applications, it made sense to create a GUI

which could also be useful as well as inspire innovation and creativity.

The AsteriskGUI™, and the code beneath it, is unique compared to other GUIs used

in conjunction with Asterisk because the all important Asterisk coniguration iles

can be edited in both the GUI and the command line. Changes made to your IP PBX

via the GUI are relected in the Asterisk coniguration iles, and vice versa. Thus a

novice user, as well as an experienced Asterisk programmer, can use AsteriskNOW

in ways that best suit their needs.

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