Service Provision -- Contents -- List of Contributors -- Preface -- Part I: Network Support for Services -- 1 Introduction and Context -- 1.1 Communications Services -- 1.2 Network Support for Services -- 1.3 Building and Analyzing Services -- 1.4 The Future of Services -- 2 Multimedia Technology in a Telecommunications Setting -- 2.1 Definition of Multimedia -- 2.2 Market Drivers for Multimedia -- 2.2.1 User expectations -- 2.2.2 Need for new revenue streams -- 2.2.3 Effect of the Internet -- 2.2.4 Content -- 2.2.5 Increasing mobility -- 2.2.6 Converged networks -- 2.2.7 Charging for multimedia services -- 2.2.8 Public network performance -- 2.2.9 Ensuring Quality of Service (QoS) -- 2.3 Standards for Multimedia Services -- 2.3.1 International Telecommunications Union (ITU) -- 2.3.2 Internet Engineering Task Force (IETF) -- 2.3.3 International Organization for Standardization (ISO) -- 2.3.4 The Open Mobile Alliance (OMA) -- 2.3.5 Proprietary standards -- 2.4 Multimedia Services and their Constituent Media Components -- 2.4.1 Media components -- 2.4.2 Attributes of a multimedia connection -- 2.4.3 Examples of multimedia services -- 2.5 Interworking between Multimedia and Traditional Voice -- 2.6 Terminal Equipment and User Interfaces -- 2.7 The Future -- 3 Call Processing -- 3.1 The Beginnings of Call Processing -- 3.2 Key Attributes of Call Processing Systems -- 3.2.1 User and network interfaces -- 3.2.2 Number translation and route selection -- 3.2.3 User subscription data -- 3.2.4 Resource and switch control -- 3.2.5 Generation of call recording data -- 3.3 Switch Architectures and Call Models -- 3.3.1 Half call model -- 3.3.2 Three segment model -- 3.3.3 Multi-segment model -- 3.3.4 Mobile switches -- 3.3.5 Implementation of call models -- 3.4 Switch-Based Services -- 3.4.1 PSTN services -- 3.4.2 ISDN services -- 3.4.3 Feature interaction.

3.5 Call Processing for Intelligent Networks -- 3.5.1 Triggering -- 3.5.2 Service switching -- 3.5.3 The IN and feature interaction -- 3.5.4 The IN and mobility -- 3.6 Softswitches -- 3.6.1 Softswitch definition -- 3.6.2 Capabilities -- 3.6.3 Developments -- 3.7Future -- 4 Advanced Intelligent Networks -- 4.1 History of the Intelligent Network (IN/AIN) -- 4.2 Intelligent Network Architecture -- 4.2.1 AIN and ITU-T IN architectures -- 4.2.2 Differences between AIN (USA) and ITU-T (International) Intelligent Network architectures -- 4.3 Components of IN Service Delivery -- 4.3.1 Service Switching Point -- 4.3.2 Service Control Point -- 4.3.3 Intelligent Peripherals (Specialized Resource Points) -- 4.4 Intelligent Network Services -- 4.4.1 Service examples -- 4.4.2 ITU-T CS 1 services -- 4.5 Assessment of Intelligent Networks -- 4.6 Future of Intelligent Networks -- 5 Basic Internet Technology in Support of Communication Services -- 5.1 Introduction -- 5.1.1 Overview -- 5.1.2 The Internet standardization process -- 5.2 Transport Service Quality in the Internet -- 5.2.1 Plain old IP -- 5.2.2 Integrated Services -- 5.2.3 Differentiated Services -- 5.2.4 Multi-Protocol Label Switching (MPLS) -- 5.3 Internet Telephony -- 5.3.1 PSTN versus Internet -- 5.3.2 Session Initiation Protocol (SIP) -- 5.3.3 Media transport protocols (RTP, RTCP) -- 5.3.4 SIP services -- 5.4 Directory-Enabled Networks (DEN) -- 5.5 Open Services Gateway Initiative -- 5.6 Active Networks -- 5.7 Conclusion -- 6 Wireless Technology -- 6.1 Introduction -- 6.2 Cellular Systems -- 6.2.1 Introduction - the cellular principle -- 6.2.2 2G systems -- 6.2.3 Early data services -- 6.2.4 2.5G systems -- 6.2.5 3G services -- 6.2.6 3G technologies -- 6.2.7 Handover and location management -- 6.2.8 Mobile networks -- 6.2.9 Location technologies -- 6.2.10 Mobile satellite systems.

6.2.11 Market trends -- 6.3 Private Mobile Radio -- 6.4 Broadcast -- 6.5 Local wireless -- 6.5.1 Introduction -- 6.5.2 Bluetooth and ZigBee -- 6.5.3 Cordless technologies -- 6.5.4 WLL -- 6.5.5 Fixed Broadband Wireless Access or WiMax -- 6.5.6 WLAN -- 6.5.7 Public access WLAN or Wi-Fi -- 6.5.8 Ultra-Wide Band -- 6.6 The Future of Wireless -- Part II: Building and Analyzing Services -- 7 Service Management and Quality of Service -- 7.1 Overview -- 7.2 What is Service Management? -- 7.2.1 Service Management historically -- 7.2.2 Service Management evolution -- 7.3 Service Level Agreements -- 7.4 Quality of Service -- 7.4.1 What is Quality of Service? -- 7.4.2 QoS attributes -- 7.4.3 Typical QoS trade-offs -- 7.4.4 Human factors and QoS -- 7.4.5 Service types as a function of QoS -- 7.4.6 QoS targets summarized -- 7.4.7 QoS in overload -- 7.4.8 QoS in failure conditions -- 7.4.9 QoS exceptions -- 7.4.10 QoS trends -- 7.5 Further Reading -- 8 Securing Communication Systems -- 8.1 Introduction -- 8.2 Cryptosystems -- 8.2.1 Symmetric key ciphers -- 8.2.2 Public key ciphers -- 8.2.3 Key management -- 8.2.4 Hashes -- 8.3 Authentication -- 8.3.1 Passwords -- 8.3.2 One-time passwords -- 8.3.3 Encryption key pairs -- 8.3.4 Biometrics -- 8.3.5 Digital signatures -- 8.3.6 Anonymity -- 8.4 Access Control -- 8.4.1 IP network permissions -- 8.4.2 Symmetric key encryption -- 8.4.3 Public key encryption -- 8.5 Security in Practice - Digital Cash -- 8.5.1 Design requirements -- 8.5.2 Purchasing protocol -- 8.5.3 Coin validity -- 8.5.4 Anonymity -- 8.5.5 Transferability -- 8.5.6 Divisibility -- 8.5.7 Revocability -- 8.6 Future -- 8.7 Further Reading -- 9 Service Creation -- 9.1 Overview -- 9.2 Introduction -- 9.2.1 What is service creation? -- 9.2.2 Historical perspective -- 9.2.3 Simplifying service creation -- 9.2.4 Service creation in multiple networks.

9.3 Services in the Public Switched Telephone Network -- 9.3.1 Example services -- 9.3.2 Intelligent Network architecture -- 9.3.3 Telephony creation environments -- 9.3.4 Integrated services -- 9.4 Internet-Based Data and Communication Services -- 9.4.1 Service architecture -- 9.4.2 The World Wide Web as a service platform -- 9.4.3 Service integration -- 9.4.4 Web services -- 9.5 Integrated Services -- 9.5.1 Challenges for an integrated network -- 9.5.2 Research trends -- 9.6 Service Introduction -- 9.6.1 Service support infrastructure -- 9.7 Conclusion -- 9.8 Further Reading -- 10 Service Architectures -- 10.1 Introduction and Motivation -- 10.2 Early Developments -- 10.3 Current Architectures -- 10.3.1 RM-ODP - a meta-framework for distributed computing -- 10.3.2 Specific distributed object technologies -- 10.3.3 From objects to components -- 10.4 Applying the Technologies -- 10.4.1 The OMG's Telecommunications Domain Task Force -- 10.4.2 Middleware technology in open service provision -- 10.4.3 Middleware technology in programmable networking environments -- 10.5 Meeting Future Challenges -- 10.5.1 Emerging challenges -- 10.5.2 Emerging solutions -- 10.6 Conclusion -- 11 Service Capability APIs -- 11.1 Introduction -- 11.2 Telecommunications Information Network Architecture -- 11.2.1 The TINA architecture -- 11.2.2 TINA and the service capability APIs -- 11.3 Java APIs for The Integrated Network -- 11.3.1 Call control in JAIN -- 11.3.2 Hands-on -- 11.4 The Parlay APIs -- 11.4.1 History -- 11.4.2 Motivation -- 11.4.3 Architecture -- 11.4.4 Procedure -- 11.4.5 Overview of Parlay APIs -- 11.4.6 Hands-on -- 11.5 Parlay X Web Services -- 11.5.1 Motivation -- 11.5.2 Architecture -- 11.5.3 Framework -- 11.5.4 The Parlay X Web services -- 11.5.5 Observations -- 11.6 Conclusion -- 11.7 Further Reading -- 12 Formal Methods for Services.

12.1 What is a Formal Method? -- 12.1.1 Nature -- 12.1.2 Benefits and costs -- 12.1.3 Concepts and terminology -- 12.2 Classification of Formal Methods -- 12.2.1 Model-based -- 12.2.2 Logic -- 12.2.3 State-based -- 12.2.4 Algebraic -- 12.2.5 Structural -- 12.3 Formal Methods for Communications Services -- 12.3.1 OSI (Open Systems Interconnection) -- 12.3.2 ODP (Open Distributed Processing) -- 12.3.3 Other kinds of service -- 12.4 Formal Methods for Telecommunications Services -- 12.4.1 Model-based -- 12.4.2 Logic -- 12.4.3 State-based -- 12.4.4 Algebraic -- 12.4.5 Structural -- 12.5 Evaluation of Formal Methods for Services -- 12.5.1 Results -- 12.5.2 Prospects -- 13 Feature Interaction: Old Hat or Deadly New Menace? -- 13.1 Overview -- 13.2 Introduction -- 13.3 Feature Interaction in POTS -- 13.4 Response of the Communications Community -- 13.4.1 Response of researchers -- 13.4.2 Response of operators -- 13.4.3 Response of vendors -- 13.5 Regulatory Changes -- 13.6 Technological Changes -- 13.7 Future Services, Old Interactions -- 13.8 Future Services, Future Interactions -- 13.9 Future Services, More Complex Interactions -- 13.10 New Challenges, New Opportunities -- 13.11 Summary -- Part III: The Future of Services -- 14 Advances in Services -- 14.1 Introduction -- 14.2 Service Convergence -- 14.2.1 Metcalfe's Law -- 14.2.2 Sustaining service convergence -- 14.2.3 Disruptive service convergence -- 14.2.4 Finding common ground -- 14.3 Context: Putting Communications in Perspective -- 14.3.1 One simple example -- 14.3.2 Where is this thing called context? -- 14.3.3 A context logistics problem -- 14.3.4 Context management: the basics -- 14.3.5 Context management: a historical perspective -- 14.3.6 The end game: converged services through context -- 14.4 Context: the next killer service feature -- 14.4.1 Presence: personalized context management.

14.4.2 Wireless meets presence management.