Essay Voice, Video, Network

125379 Words Feb 16th, 2015 502 Pages
VOICE, VIDEO, AND DATA NETWORK CONVERGENCE

VOICE, VIDEO, AND DATA NETWORK CONVERGENCE
ARCHITECTURE
AND

DESIGN, FROM VOIP

TO

WIRELESS

JUANITA ELLIS CHARLES PURSELL JOY RAHMAN

Amsterdam Boston London New York Oxford San Francisco Singapore Sydney Tokyo

Paris

San Diego

This book is printed on acid-free paper. Copyright 2003, Elsevier Science (USA). All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permissions may be sought directly from Elsevier’s Science & Technology Rights Department in Oxford,
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—Joy Rahman To my mother, and the rest of my family, who gave me support, encouragement, perspective, and the occasional constructive needling; and to the memory of Herbert Pursell, who started me out on this journey. —Charles Pursell

CONTENTS

Preface List of Acronyms CHAPTER 1 Differences in Data and Voice Traffic
Packet Switching versus Circuit Switching Data Traffic Characteristics Voice Traffic Characteristics The Addition of Data TDM Architectures Convergent Technologies

xi xvii 1
2 8 13 16 17 19

CHAPTER 2

Networks Supported—Keeping Existing Infrastructures in Place
Vice Networking Basic Telephony Time Division Multiplexing (TDM) Voice over ATM Voice over Frame Relay Voice over Internet Protocol (VoIP)

21
22 22 24 25 40 49

CHAPTER 3

The IP-Based Converged Network Elements
Managed IP Infrastructure Media Gateways Signaling Gateways Media Controllers Multipoint Control Units Adjunct Processors Terminals

63
65 66 68 70 76 76 79

viii

Voice, Video, and Data Network Convergence

CHAPTER 4

VoIP Technology
Voice Traffic Needs in an IP Network IP Network Protocols to Support Voice Other Elements that Affect VoIP Network Design Recommendations

81
81 90 97 99

CHAPTER 5

Approaches to Implementing VoIP Architectures
PBX/KTS-based Architectures Router-Based Arcitectures PC-Based Architecture Specialized Gateways Converged IP Network Evolution

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