Copyright

CCNA Voice 640-461 Official Cert Guide

Jeremy Cioara, CCIE No. 11727; Mike Valentine, CCNA, CCNP, CCVP

Copyright© 2012 Pearson Education, 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

Third Printing: March 2012

Library of Congress Cataloging-in-Publication Data

Cioara, Jeremy.
 CCNA voice official exam certification guide / Jeremy Cioara, Mike Valentine.
       p. cm.
 “CCNA voice 640-461.”
 ISBN 978-1-58720-417-3 (hardcover w/cd)  1.  Internet telephony—Examinations—Study guides.  I.
Valentine, Michael, 1966- II. Title.

 TK5105.8865.C523 2012
 004.69’5076—dc23
                                                                      2011024500

ISBN-13: 978-1-58720-417-3

Warning and Disclaimer

This book is designed to provide information about the 640-461 ICOMM exam certification exam. 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 authors, Cisco Press, and Cisco Systems, Inc., shall have neither liability nor responsibility to any person or entity with respect to any loss or damages arising from the information contained in this book or from the use of the discs or programs that may accompany it.

The opinions expressed in this book belong to the authors and are not necessarily those of Cisco Systems, Inc.

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.

Corporate and Government Sales

The publisher offers excellent discounts on this book when ordered in quantity for bulk purchases or special sales, which may include electronic versions and/or custom covers and content particular to your business, training goals, marketing focus, and branding interests. For more information, please contact:

U.S. Corporate and Government Sales
1-800-382-3419  corpsales@pearsontechgroup.com

For sales outside the United States, please contact:
International Sales
international@pearsoned.com
Feedback Information

At Cisco Press, our goal is to create in-depth technical books of the highest quality and value. Each book is crafted with care and precision, undergoing rigorous development that involves the unique expertise of members from the professional technical community.

Readers’ feedback is a natural continuation of this process. If you have any comments regarding how we could improve the quality of this book, or otherwise alter it to better suit your needs, you can contact us through e-mail at feedback@ciscopress.com. Please make sure to include the book title and ISBN in your message.

We greatly appreciate your assistance.

Publisher: Paul Boger
Cisco Representative: Anthony Wolfenden
Executive Editor: Brett Bartow
Development Editor: Deadline Driven Publishing
Copy Editor: Sheri Cain
Editorial Assistant: Vanessa Evans
Composition: Mark Shirar
Proofreader: Water Crest Publishing
Associate Publisher: Dave Dusthimer
Cisco Press Program Manager: Jeff Brady
Managing Editor: Sandra Schroeder
Project Editor: Mandie Frank
Technical Editors: Brion Washington, John Swartz
Designer: Gary Adair
Indexer: Brad Herriman

Dedication

From Jeremy D. Cioara:

This book is dedicated to you. Yes...the person reading this right now. No, I’m not being cheesy, I’m serious! The only real way people are truly successful and fulfilled in this career is to love what they’re doing. Because of that, I put much effort (within grammatical boundaries) into not just communicating technical mumbo jumbo—hey! Microsoft Word didn’t correct that! Who knew “mumbo jumbo” was a real word?—but making it fun and interesting to read. I hope this book sparks something in you that blooms into an interesting, fun, and fulfilling career.

(In case you’re curious, dictionary.com defines “mumbo jumbo” as senseless or pretentious language, usually designed to obscure an issue, confuse a listener, or the like. It also says that mumbo jumbo is a masked man who combats evil in the western Sudan. I don’t think either of these was my intention...)

From Mike Valentine:

This book is dedicated to my wife Liana, without whose unflinching support, it might never have happened. You and me, love.

In memory of my Dad.