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Preface xi
Part I Technology 1
Introduction 1
1 Circuit Switched Technologies 3
1.1 The evolution of circuit switching 3
1.2 Signalling communicating between switching points 10
2 The Transmission Infrastructure 19
2.1 Introduction 19
2.2 Voice Digitisation 20
2.3 Plesiochronous Digital Hierarchy 25
2.4 Synchronous Digital Hierarchy & Synchronous Optical
Networks 27
2.5 Dynamic Synchronous Transfer Mode (DTM) 29
2.6 Wave Division Multiplex 30
3 Intelligent Networks 33
3.1 Introduction 33
3.2 Functional components 35
4 Mobile Networks 41
4.1 Introduction 41
4.2 Mobile network architecture and components 44
4.3 Beyond GSM, the path to UMTS 48
5 Packet Switched Technologies 53
5.1 Introduction 53
5.2 Basic Internet Protocol 56
5.3 Mobile IP 62
5.4 Transmission Control Protocol 63
5.5 User Datagram Protocol 64
5.6 Multimedia Transport 65
5.7 IP Application signalling protocols 68
6 Access Technologies 85
6.1 Introduction 85
6.2 Integrated Services Digital access 86
6.3 Digital Subscriber Line 88
6.4 Leased Lines and other fixed line services 91
7 Voice and Data Convergence 93
7.1 Introduction 93
7.2 Asynchronous Transfer Mode 94
8 Representing Information 99
8.1 Introduction 99
8.2 (X)HTML 100
8.3 XML 101
8.4 VoiceXML 105
8.5 SOAP, UDDI and WSDL 106
8.6 IPDR 110
8.7 Call Processing Language (CPL) 111
9 Directories - More Than Just Information Storage 115
9.1 Introduction 115
9.2 Domain Name System (DNS) 116
9.3 X.500 and LDAP 118
9.4 The Meta-Directory 119
9.5 Other directory technologies and ideas 119
Part II Services, Architectures and Applications 121
Introduction 121
10 Intelligent Network Services 123
10.1 Introduction 123
10.2 Example existing services and how they work 124
10.3 Softswitches and application servers 126
10.4 The future of IN 128
10.5 Voice based services 135
CONTENTS viii
11 Call Centres 145
11.1 Introduction 145
11.2 Computer Telephony Integration (CTI) 146
11.3 The future for CTI 151
12 Internet Based Services 155
12.1 Introduction - the move to hosted services 155
12.2 Presence 157
12.3 Application Frameworks 159
13 Bringing it all Together - the New Network Architecture 167
13.1 Introduction 167
13.2 The next-generation network architecture 168
13.3 A service example 170
Part III Implications 173
Introduction 173
14 Expectation and Realisation 175
14.1 Too much too soon? 175
14.2 Where to now? 176
14.3 Strategies for making it happen 179
14.4 How long and How much? 182
References and Further Reading 187
Glossary 189
Index 193
CONTENTS ix |
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发表于 2004-12-5 11:54:52
