Foreword The Authors Acknowledgements List of Abbreviations and Symbols 1 Introduction 1.1 The Evolution ofInternet Telephony 1.2 Problem Statement 1.3 Solutions 2 Internet Telephony：The Evolution to a Service-Oriented Architecture 2.1 Introduction 2.2 Service Architecture for Traditional Telephone Network 2.3 Intemet Services Architecture 2.4 Requirements ofa Telecommunications SOA 2.5 Conclusion 3 Background：Providing Telephony Service 3.1 Service Architecture for the Wireline Public Switched Telephone Network 3.2 Service Architecture for the Cellular Public Switched Telephone Network 3.3 Service Architecture for Internet Telephony 4 Comparative Analysis of Signaling Protocols 4.1 Desirable Properties of a Candidate Protocol 4.2 Protocols Evaluated 4.3 Comparative Analysis 4.4 The Novel SIP-Based Approach 5 Crossover Services Originating on the Internet 5.1 Introduction 5.2 Motivation 5.3 Call Model Mapping with State Sharing 5.4 Implementing CMM/SS 5.5 Results from CMM/SS 5.6 Performance ofCMM/SS 5.7 CMM/SS：A General Solution 5.8 Limitations of CMM/SS 5.9 Related Work 5.10 Conclusion 6 Crossover Services Originating on the Public Switched Telephone Network 6.1 Introduction 6.2 Architecture for PSTN-Originated Crossover Services 6.4 An XML Schema to Represent Events in the PSTN 6.5 Proposed Extensions to SIP 6.6 Examples 6.7 A Taxonomy of PSTN-Originated Crossover Services 6.8 SIP：The Distributed Middleware 6.9 Related Work 6.10 Conclusion 7 Smart Spaces in the Telecommunications Domain 7.1 Introduction 7.2 Research Thrusts ofPervasive Computing 7.3 Implementing a Telecommunications Smart Space 7.4 Design and Implementation ofthe Event Manager 7.5 Performance Analysis ofthe Event Manager 7.6 Related Work 7.7 Conclusion 8 Conclusions Appendix A The SPIRITS(Services in PSTN Requesting Internet Services)Protocol Appendix B Interworking SIP and Intelligent Network Applications Appendix C XML Schema for PSTN Events Appendix D XML Schema for SMS to IM Appendix E Raw Data for Event Manager Performance Analysis Bibliography
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