IP TELEPHONY UNVEILED
Kevin Brown
Cisco Press
800 East 96th Street
Indianapolis, Indiana 46240 USA
(ii)
IP Telephony Unveiled
Kevin Brown
Copyright© 2004 Cisco Systems, Inc.
Published by:
Cisco Press
800 East 96th Street
Indianapolis, IN 46240 USA
All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic
or mechanical, including photocopying, recording, or by any information storage and retrieval system, without
written permission from the publisher, except for the inclusion of brief quotations in a review.
Printed in the United States of America 6 7 8 9 10 11 12
Sixth Printing August 2005
Library of Congress Cataloging-in-Publication Number: 2002114471
ISBN: 1-58720-075-9
Trademark Acknowledgments
All terms mentioned in this book that are known to be trademarks or service marks have been
appropriately capitalized. Cisco Press or Cisco Systems, Inc. cannot attest to the accuracy of this information.
Use of a term in this book should not be regarded as affecting the validity of any trademark or service mark.
Warning and Disclaimer
This book is designed to provide information about IP telephony. Every effort has been made to make
this book as complete and as accurate as possible, but no warranty or fitness is implied.
The information is provided on an “as is” basis. The author, Cisco Press, and Cisco Systems, Inc. shall
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Publisher John Wait
Editor-in-Chief John Kane
Cisco Representative Anthony Wolfenden
Cisco Press Program Manager Nannette M. Noble
Production Manager Patrick Kanouse
Development Editor Jennifer Foster
Senior Project Editor Sheri Cain
Copy Editor Marianne Madeiros
Technical Editors Mark Gallo, David Lovell, Anne Smith
Editorial Assistant Tammi Barnett
Cover and Book Designer Louisa Adair
Composition Mark Shirar
Indexer Tim Wright
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About the Author
Kevin Brown is the president and CEO of IPCELERATE, Inc., a software developer
of convergence applications. Prior to IPCELERATE, Kevin was VP for the Convergence
Development Group at Norstan. Kevin has more than 25 years of experience in the voice
and data telecommunications industry, including positions held with ROLM, VMX, and
Intecom between 1985[nd]1995. Kevin was VP sales and marketing for Selsius Systems in
the late 1990s and worked in the voice business unit for Cisco Systems after its acquisition
of Selsius Systems in 1998.
Kevin works on two nonprofit foundations: as a cofounder of the First Things
Foundation, a Dallas-based foundation that helps single mothers and their children; and as
an advisor for the Ivan and Sam Foundation in Georgia, focusing on helping victims and
families touched by pediatric cancer. He speaks at numerous industry and company events
and lives in Texas with his wife, Georgina, and their six children.

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