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| Foreword. | |
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| Preface. | |
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| Acknowledgements. | |
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| List of Figures. | |
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| List of Tables. | |
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| IMS ARCHITECTURE AND CONCEPTS. | |
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| Introduction. | |
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| What is the Internet Protocol Multimedia Subsystem (IMS)? | |
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| Fixed and Mobile Convergence | |
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| Example of IMS Services | |
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| Where did it come from? | |
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| Why a SIP Solution Based on 3GPP Standards? | |
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| IP Multimedia Subsystem Architecture. | |
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| Architectural Requirements | |
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| Description of IMS-related Entities and Functionalities | |
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| IMS Reference Points | |
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| IMS Concepts | |
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| Overview | |
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| Registration | |
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| Mechanism to Register Multiple User Identities at a Go | |
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| Session Initiation | |
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| Identification | |
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| IP Multimedia Services Identity Module (ISIM) | |
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| Sharing a Single User Identity between Multiple Devices | |
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| Discovering the IMS Entry Point | |
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| S-CSCF Assignment | |
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| Mechanism for Controlling Bearer Traffic | |
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| Charging | |
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| User Profile | |
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| Service Provision | |
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| Connectivity between Traditional CS Users and IMS Users | |
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| IMS Transit | |
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| Support for Local Dialling Plans | |
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| IMS Emergency Sessions | |
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| SIP Compression | |
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| Combination of CS and IMS Services � Combinational Services | |
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| Voice Call Continuity | |
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| Security Services in the IMS | |
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| Interworking between IPv4 and IPv6 in the IMS | |
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| IMS SERVICES | |
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| Presence. | |
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| Who will use the Presence Service? | |
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| Presence-Enhanced Services | |
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| Presence Contributing to Business | |
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| What is Presence? | |
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| Presence Service in IMS | |
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| Publishing Presence | |
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| Subscribing Presence | |
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| Watcher Information | |
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| Setting Presence Authorization | |
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| Group Management. | |
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| Group Management�s Contribution to Business | |
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| What is Group Management? | |
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| What is XML Configuration Access Protocol? | |
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| What is Common Policy? | |
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| Resource List | |
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| XCAP Usage for Resource Lists | |
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| Open Mobile Alliance Solution for Group Management | |
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| Multimedia Telephony and Service Management | |
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| Push to Talk Over Cellular | |
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| PoC Architecture | |
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| PoC Features | |
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| User Plane | |
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| PoC Service Settings | |
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| Messaging. | |
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| Overview of IMS Messaging | |
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| Immediate Messaging | |
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| Session-Based Messaging | |
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| Messaging Interworking | |
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| Instant Messaging by Open Mobile Alliance | |
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| Conferencing | |
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| IMS Conferencing Architecture and Principles | |
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| IMS Conferencing Procedures | |
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| Multimedia Telephony | |
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| Introduction | |
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| Multimedia Telephony Communication | |
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| Supplementary Services | |
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| DETAILED PROCEDURES | |
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| Introduction to Detailed Procedures. | |
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| The Example Scenario | |
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| Base Standards | |
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| An Example of IMS Registration. | |
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| Overview | |
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| Initial Parameters and IMS Management Object | |
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| Signalling PDP Context Establishment | |
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| P-CSCF Discovery | |
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| SIP Registration and Registration Routing Aspects | |
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| Authentication | |
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| Access Security � IPsec SAs | |
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| SIP Security Mechanism Agreement | |
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| IMS Communication Service Identification and other Callee Capabilities | |
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| Compression Negotiation | |
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| Access and Location Information | |
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| Charging-Related Information During Registration | |
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| User Identities | |
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| Re-Registration and Re-Authentication | |
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| De-Registration | |
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| GPRS-IMS-Bundled Authentication (GIBA) | |
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| An Example IMS Multimedia Telephony Session | |
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| Overview | |
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| Caller and Callee Identities | |
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| Routing | |
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| Compression Negotiation | |
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| Media Negotiation | |
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| Resource Reservation | |
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| Charging-Related Procedures During Session Establishment for Sessions | |
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| Release of a Session | |
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| Alternative IMS Session Establishment Procedures | |
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| Routing of GRUUs | |
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| Routing of PSIs | |
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| A Short Introduction to GPRS | |
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| An example IMS Voice Call Continuity Procedures | |
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| Overview | |
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| Configuring the Clients with Communication Continuity Configuration Parameters | |
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| Setting up the Initial Call and Call Anchoring | |
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| Domain Transfer: CS to IMS | |
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| Theresa adds Video to the Call | |
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| Domain Transfer: IMS to CS | |
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| Related Standards | |
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| References. | |
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| List of Abbreviations. | |
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| Index | |