Building Telephony Systems with OpenSER
A step-by-step guide to building a high-performance telephony system
Flavio E. Goncalves
BIRMINGHAM - MUMBAI
Building Telephony Systems with OpenSER Copyright © 2008 Packt Publishing
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First published: April 2008
Production Reference: 1140408
Published by Packt Publishing Ltd. 32 Lincoln Road Olton Birmingham, B27 6PA, UK. ISBN 978-1-847193-73-5 www.packtpub.com
Cover Image by Raghuram Ashok (
[email protected])
Credits Author Flavio E. Goncalves Reviewers Bogdan-Andrei Iancu
Project Manager Abhijeet Deobhakta Indexer Hemangini Bari
Daniel-Constantin Mierla Proofreader Development Editor
Chris Smith
Swapna V. Verlekar Production Coordinator Technical Editor
Shantanu Zagade
Bhupali Khule Cover Work Editorial Team Leader Mithil Kulkarni
Shantanu Zagade
About the Author Flavio E. Goncalves was born in 1966 in Minas Gerais, Brazil. Having always had a strong interest in computers, he got his first personal computer in 1983 and since then it has been almost an addiction. He received his degree in Engineering in 1989 with focus in computer aided design and computer aided manufacturing.
He is also CEO of V.Office Networks in Brazil, a consulting company dedicated to the areas of Networks, Security, Telecom, and Operating Systems and a training center since its foundation in 1996. Since 1993, he has participated in a series of certification programs having being certificated as Novell MCNE/MCNI, Microsoft MCSE/MCT, Cisco CCSP/CCNP/CCDP, Asterisk dCAP, and some others. He started writing about open-source software because he thinks the way certification programs were organized in the past was very good to help learners. Some books today are written by strictly technical people, who, sometimes, do not have a clear idea on how people learn. He tried to use his 15-year experience as instructor to help people learn open-source telephony software. His experience with networks, protocol analyzers, and IP telephony, combined with his teaching skills, gave him an edge to write this book. This is the second book he has written; the first one was The Configuration Guide for Asterisk PBX. As the CEO of V.Office, Flavio E. Goncalves balances his time between family, work, and fun. He is the father of two children and liv