Publisher: Robert Ipsen
Editor: Margaret Eldridge
Assistant Editor: Adaobi Obi
Managing Editor: Angela Smith
New Media Editor: Brian Snapp
Text Design & Composition: North Market Street Graphics
Designations used by companies to distinguish their products are often claimed as trade-
marks. In all instances where John Wiley & Sons, Inc., is aware of a claim, the product names
appear in initial capital or
ALL CAPITAL LETTERS. Readers, however, should contact the appro-
priate companies for more complete information regarding trademarks and registration.
This text is printed on acid-free paper.
∞∞
Copyright © 2002 by Dan Minoli, Emmanuelle Minoli. All rights reserved.
Published by Wiley Publishing, Inc., Indianapolis, Indiana
Published simultaneously in Canada.
No part of this publication may be reproduced, stored in a retrieval system or transmitted in
any form or by any means, electronic, mechanical, photocopying, recording, scanning or
otherwise, except as permitted under Sections 107 or 108 of the 1976 United States Copy-
right Act, without either the prior written permission of the Publisher, or authorization
through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222
Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 750-4744. Requests to
the Publisher for permission should be addressed to the Legal Department, Wiley Publishing,
Inc., 10475 Crosspointe Blvd., Indianapolis, IN 46256, (317) 572-3447, fax (317) 572-4447,
E-mail:
[email protected].
This publication is designed to provide accurate and authoritative information in regard to
the subject matter covered. It is sold with the understanding that the publisher is not
engaged in professional services. If professional advice or other expert assistance is required,
the services of a competent professional person should be sought.
Library of Congress Cataloging-in-Publication Data:
Minoli, Daniel
Delivering voice over IP networks / Dan Minoli, Emma Minoli.— 2nd ed.
p. cm.
ISBN 0-471-38606-5
1. Internet telephony. 2. TCP/IP (Computer network protocol). 3. Digital telephone
systems. 4. Computer networks. 5. Data transmission sytems. I. Minoli, Emma. II. Title.
TK5105.8865 .M57 2002
621.385—dc21
2002071368
Wiley also publishes its books in a variety of electronic formats. Some content that appears in
print may not be available in electronic versions. For more information about Wiley products,
visit our web site at www.wiley.com.
Printed in the United States of America.
10987654321