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| Foreword | |
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| Acknowledgments | |
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| Introduction | |
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| Architecture of the IMS | |
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| IMS Concepts | |
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| The Intelligent Network and Signaling System #7 | |
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| Entities in an IMS Core Network | |
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| Call Session Control Function (CSCF) | |
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| IMS Reference Points | |
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| Moving from Legacy to Convergence | |
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| Migrating the Backbone to an IP-Based Network | |
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| Deploying VoIP as a Growth Strategy | |
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| Deploying IMS | |
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| Interworking Between the Legacy Network and IMS | |
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| Migrating the OSS/BSS | |
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| Interfacing to the IMS | |
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| Circuit-Switched Domains (CS) | |
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| Packet-Switched Domains (PS) | |
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| VoIP Domain | |
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| General Packet Radio Service (GPRS) | |
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| UMTS and CDMA Domains | |
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| From IMS to IMS | |
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| Session Initiation Protocol (SIP) | |
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| SIP Protocol Structure | |
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| SIP Methods | |
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| SIP Requests | |
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| SIP Responses | |
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| SIP Header Fields | |
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| Session Description Protocol (SDP) | |
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| Session Level Description | |
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| Time Description | |
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| Media Description | |
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| Media Attribute Lines (a=) | |
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| Addressing in the IMS | |
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| Device Identity in the IMS | |
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| SIP Identities in the IMS | |
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| Domain Names and URIs | |
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| User Identities | |
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| Establishing a Session in the IMS | |
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| Accessing the Network | |
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| Locating the P-CSCF | |
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| Registration in the IMS Using SIP | |
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| Basic Session Registration | |
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| Interworking with the PSTN | |
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| Interworking with VoIP | |
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| Establishing Sessions in the IMS Using SIP | |
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| Basic Session Establishment | |
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| Emergency Session Establishment | |
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| Modifying SIP Sessions in the IMS | |
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| Terminating SIP Sessions in the IMS | |
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| Security Procedures in the IMS | |
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| Security Threats in an IP Domain | |
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| Eavesdropping | |
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| Registration Hijacking | |
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| Server Impersonation | |
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| Message Body Tampering | |
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| Session Teardown | |
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| Denial-of-Service Attacks | |
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| Amplification | |
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| Securing the IMS | |
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| Authentication & Authorization | |
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| Confidentiality | |
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| Denial of Service | |
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| Integrity | |
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| Privacy | |
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| Non-Repudiation | |
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| Access Security | |
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| Encryption | |
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| Authentication and Key Agreement | |
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| Network Domain Security | |
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| Online and Offline Charging in the IMS | |
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| Introduction to Charging | |
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| Charging Architecture | |
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| User Profile | |
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| Accounting with DIAMETER | |
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| Charging in the IMS | |
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| 3GPP Documentation | |
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| IMS-Related Documentation | |
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| IETF IMS-Related Documentation | |
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| Bibliography | |
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| Index | |