tailieunhanh - Telecommunications Survival Guide

Telecommunications Survival Guide will help any professional understand all of today's most important new telecommunications, networking, and high-speed Internet technologies-and how to profit from them! Leading author and consultant Peter Moulton explains today's telecom revolution in straightforward, easy-to-follow language—with plenty of pictures, diagrams, and business examples. From wireless to LANs, DSL to satellite communications, you'll learn how it works, why it matters, and how you can use it to save money and reach new customers | PETE MOULTON with the assistance of Jason Moulton Telecommunications Survival Guide PH PTR Prentice Hall PTR Upper Saddle River NJ 07458 Library of Congress Cataloging-in-Publication Data CIP data available. Editorial Production Supervision Kathleen M. Caren Acquisitions Editor Mary Franz Editorial Assistant Noreen Regina Marketing Manager Dan DePasquale Development Editor Jim Markham Manufacturing Manager Alexis R. Heydt Cover Design Direction Jerry Votta Cover Design Talar Agasyan Cover Illustration Tom Post Series Design Gail Cocker-Bogusz PH PTR 2001 Prentice Hall PTR Prentice-Hall Inc. Upper Saddle River NJ 07458 Prentice Hall books are widely used by corporations and government agencies for training marketing and resale. The publisher offers discounts on this book when ordered in bulk quantities. For more information contact Corporate Sales Department Phone 800-382-3419 fax 201-236-714 email corpsales@ or write Corporate Sales Department Prentice Hall PTR One Lake Street Upper Saddle River NJ 07458. All rights reserved. No part of this book may be reproduced in any form or by any means without permission in writing from the publisher. Printed in the United States of America 10 9 8 7 6 5 4 3 2 1 ISBN 0-13-028136-0 Prentice-Hall International UK Limited London Prentice-Hall of Australia Pty. Limited Sydney Prentice-Hall Canada Inc. Toronto Prentice-Hall Hispanoamericana . Mexico Prentice-Hall of India Private Limited New Delhi Prentice-Hall of Japan Inc. Tokyo Simon Schuster Asia Pte. Ltd. Singapore Editora Prentice-Hall do Brasil Ltda. Rio de Janeiro This book is dedicated to the people at the Moulton Company and my immediate family. Jason Moulton Phil Lowry Phil Crouse Melissa Clawson Ellen Jona Mayes and Colby John Smith Herb Brooks and Matt Baker have all traveled extensively to permit me to sit and write. Susan Joe and Jenna Witkowski have put me up in my travels. Jeremy Moulton contributed to some of the best stories. Better .