Sip Trunking

SIP Trunking Christina Hattingh Darryl Sladden ATM Zakaria Swapan Cisco Press 800 East 96th Street Indianapolis, IN 46240 ii SIP Trunking SIP Trunking Christina Hattingh, Darryl Sladden, and ATM Zakaria Swapan Copyright © 2010 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 First Printing March 2010 Library of Congress Cataloging-in-Publication Data is on file. ISBN-13: 978-1-58705-944-5 ISBN-10: 1-58705-944-4 Warning and Disclaimer This book is designed to provide information about Session Initiation Protocol (SIP) networking technology. 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. iii 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 [email protected] For sales outside the United States please contact: International Sales [email protected] 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 email at [email protected] Please make sure to include the book title and ISBN in your message. We greatly appreciate your assistance. Publisher: Paul Boger Business Operation Manager, Cisco Press: Anand Sundaram Associate Publisher: Dave Dusthimer Manager Global Certification: Erik Ullanderson Executive Editor: Brett Bartow Development Editor: Deadline Driven Managing Editor: Patrick Kanouse Copy Editor: Apostrophe Editing Services Project Editor: Mandie Frank Techni