The IMS : IP multimedia concepts and services

The 3rd edition of this highly successful text builds on the achievement of the first two editions to provide comprehensive coverage of IMS. It continues to explore the concepts, architecture, protocols and functionalities of IMS while providing a wealth of new and updated information. It is written in a manner that allows readers to choose the level of knowledge and understanding they need to gain about the IMS.

With 35% new material, The IMS,IP Multimedia Concepts and Services, 3rd Edition has been completely revised to include updated chapters as well as totally new chapters on IMS multimedia telephony and IMS voice call continuity. Additional new material includes IMS transit, IMS local numbering, emergency sessions, identification of communication services in IMS, new authentication model for fixed access, NAT traversal and globally routable user agents URI. Detailed descriptions of protocol behaviour are provided on a level that can be used for implementation and testing.

Key features of the 3rd edition:

Two new chapters on IMS multimedia telephony service and IMS Voice Call Continuity Updated information on Third Generation Partnership Project (3GPP) Release 7 level, including architecture, reference points and concepts Substantially extended coverage on IMS detailed procedures Completely rewritten and extended chapters on IMS services

Author Notes

Miikka Poikselkä works for Nokia Siemens Networks, Finland.

Georg Mayer works for Nokia Mobile Phones, Finland.

All the authors are involved with Third Generation Partnership Project Agreement (3GPP), Internet Engineering Task Force (IETF) and Open Mobile Alliance (OMA) standardization.

Foreword.

Preface.

Acknowledgements.

List of Figures.

List of Tables.

Part I IMS ARCHITECTURE AND CONCEPTS.

1 Introduction.

1.1 What is the Internet Protocol Multimedia Subsystem (IMS)?

1.2 Fixed and Mobile Convergence

1.3 Example of IMS Services

1.4 Where did it come from?

1.5 Why a SIP Solution Based on 3GPP Standards?

2 IP Multimedia Subsystem Architecture.

2.1 Architectural Requirements

2.2 Description of IMS-related Entities and Functionalities

2.3 IMS Reference Points

3 IMS Concepts

3.1 Overview

3.2 Registration

3.3 Mechanism to Register Multiple User Identities at a Go

3.4 Session Initiation

3.5 Identification

3.6 IP Multimedia Services Identity Module (ISIM)

3.7 Sharing a Single User Identity between Multiple Devices

3.8 Discovering the IMS Entry Point

3.9 S-CSCF Assignment

3.10 Mechanism for Controlling Bearer Traffic

3.11 Charging

3.12 User Profile

3.13 Service Provision

3.14 Connectivity between Traditional CS Users and IMS Users

3.15 IMS Transit

3.16 Support for Local Dialling Plans

3.17 IMS Emergency Sessions

3.18 SIP Compression

3.19 Combination of CS and IMS Services û Combinational Services

3.20 Voice Call Continuity

3.21 Security Services in the IMS

3.22 Interworking between IPv4 and IPv6 in the IMS

Part II IMS SERVICES

4 Presence.

4.1 Who will use the Presence Service?

4.2 Presence-Enhanced Services

4.3 Presence Contributing to Business

4.4 What is Presence?

4.5 Presence Service in IMS

4.6 Publishing Presence

4.7 Subscribing Presence

4.8 Watcher Information

4.9 Setting Presence Authorization

5 Group Management.

5.1 Group ManagementÆs Contribution to Business

5.2 What is Group Management?

5.3 What is XML Configuration Access Protocol?

5.4 What is Common Policy?

5.5 Resource List

5.6 XCAP Usage for Resource Lists

5.7 Open Mobile Alliance Solution for Group Management

5.8 Multimedia Telephony and Service Management

6 Push to Talk Over Cellular

6.1 PoC Architecture

6.2 PoC Features

6.3 User Plane

6.4 PoC Service Settings

7 Messaging.

7.1 Overview of IMS Messaging

7.2 Immediate Messaging

7.3 Session-Based Messaging

7.4 Messaging Interworking

7.5 Instant Messaging by Open Mobile Alliance

8 Conferencing

8.1 IMS Conferencing Architecture and Principles

8.2 IMS Conferencing Procedures

9 Multimedia Telephony

9.1 Introduction

9.2 Multimedia Telephony Communication

9.3 Supplementary Services

Part III DETAILED PROCEDURES

10 Introduction to Detailed Procedures.

10.1 The Example Scenario

10.2 Base Standards

11 An Example of IMS Registration.

11.1 Overview

11.2 Initial Parameters and IMS Management Object

11.3 Signalling PDP Context Establishment

11.4 P-CSCF Discovery

11.5 SIP Registration and Registration Routing Aspects

11.6 Authentication

11.7 Access Security û IPsec SAs

11.8 SIP Security Mechanism Agreement

11.9 IMS Communication Service Identification and other Callee Capabilities

11.10 Compression Negotiation

11.11 Access and Location Information

11.12 Charging-Related Information During Registration

11.13 User Identities

11.14 Re-Registration and Re-Authentication

11.15 De-Registration

11.16 GPRS-IMS-Bundled Authentication (GIBA)

12 An Example IMS Multimedia Telephony Session

12.1 Overview

12.2 Caller and Callee Identities

12.3 Routing

12.4 Compression Negotiation

12.5 Media Negotiation

12.6 Resource Reservation

12.7 Charging-Related Procedures During Session Establishment for Sessions

12.8 Release of a Session

12.9 Alternative IMS Session Establishment Procedures

12.10 Routing of GRUUs

12.11 Routing of PSIs

12.12 A Short Introduction to GPRS

13 An example IMS Voice Call Continuity Procedures

13.1 Overview

13.2 Configuring the Clients with Communication Continuity Configuration Parameters

13.3 Setting up the Initial Call and Call Anchoring

13.4 Domain Transfer: CS to IMS

13.5 Theresa adds Video to the Call

13.6 Domain Transfer: IMS to CS

13.7 Related Standards

References.

List of Abbreviations.

Index

Available:*

On Order

Summary

Summary

Author Notes

Table of Contents