Library of Congress Cataloging-in-Publication Data

Schaphorst, Richard.

Videoconferencing and videotelephony: technology and standards

/ Richard Schaphorst. 2nd ed.

p. cm. (Artech House telecommunications library)

Includes bibliographical references and index.

1. Interactive multimedia. 2. Videoconferencing. 3. Digital communications. I. Title. II. Series.

QA76.76.I59 S33 1999

621.39'9 dc21

99-17753

CIP

British Library Cataloguing in Publication Data

Schaphorst, Richard

Videoconferencing and videotelephony: technology and standards. 2nd ed.

1. Videoconferencing 2. Video telephone 3. Videoconferencing Standards

4. Video telephone Standards

I. Title

621.3'85

Cover design by Lynda Fishbourne

All rights reserved. Printed and bound in the United States of America. No part of this book may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without permission in writing from the publisher.

All terms mentioned in this book that are known to be trademarks or service marks have been appropriately capitalized. Artech House 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.

International Standard Book Number: 0-89006-997-2

Library of Congress Catalog Card Number: 99-17753

10 9 8 7 6 5 4 3 2 1

Acknowledgments

This book frequently references telecommunication standards...