IMS Application Developer’s Handbook gives a hands-on view of exactly what needs to be done by IMS application developers to develop an application and take it "live" on an operator’s network. It offers practical guidance on building innovative applications using the features and capabilities of the IMS network, and shows how the rapidly changing development environment is impacting on the business models employed in the industry and how existing network solutions can be moved towards IMS. Elaborating on how IMS applies basic VoIP principles and techniques to realize a true multi-access, and multimedia network, this book ensures that developers know how to use IMS most effectively for applications.

Written by established experts in the IMS core network and IMS service layer, with roots in ISDN and GSM, with experience from working at Ericsson, who have been active in standardisation and technology development and who have been involved in many customer projects for the implementation of fixed mobile converged IMS network and service. The authors of this book bring their in-depth and extensive knowledge in the organizations involved in the IMS standardization and its architecture.

• Clear, concise and comprehensive view of the IMS and Rich Communication Suite (RCS) for developers
• Written by established experts in the IMS services layer, who have been involved in many customer projects for the implementation of fixed mobile converged IMS network and service
• Covers potential service and operator scenarios for the IMS architecture; it is significantly more than merely a description of the IMS standards

Table of Contents

CHAPTER 1 Introduction

CHAPTER 2 Business Modeling for a Digital Planet

CHAPTER 3 Service Deployment Patterns

CHAPTER 4 Applications in the IP Multimedia Subsystem

CHAPTER 5 Service Development

CHAPTER 6 Introduction to IP-Based Real-Time Communications

CHAPTER 7 Introduction to Session Initiation Protocol

CHAPTER 8 Introduction to the IMS Network

CHAPTER 9 MMTel and Other IMS Enablers

CHAPTER 10 Charging

CHAPTER 11 Interworking with Legacy Networks

CHAPTER 12 Rich Communication Suite

CHAPTER 13 Evolved IP Multimedia Architecture and Services

CHAPTER 14 Future Outlook: Market and Technology

About the Authors

Rogier Noldus is expert at Ericsson Telecommunicatie B.V. in Rijen, The Netherlands. He has been involved in Intelligent Networks (IN) standardization and has driven the development of CAMEL within Ericsson. He has subsequently made a switch to IP multimedia system (IMS) and is now focusing on the integration of GSM and IMS networks, covering areas such as Next generation IN, Fixed mobile convergence, Media transmission, Multi access, Value added services (e.g. enterprise service such as IP Centrex) and Next generation networks.

He holds a B.Sc. degree (electronics) from the Institute of Technology in Utrecht (The Netherlands) and a M.Sc. degree (telecommunications) from the University of The Witwatersrand (Johannesburg, South Africa). He joined Ericsson in 1996. Rogier’s telecommunications roots lie in South Africa, where he worked for Siemens, Telkor and Telecommunications Manufacturers of South Africa (TMSA).

Rogier is the author of the book “CAMEL, Intelligent Networks for the GSM, GPRS and UMTS network” (Wiley, 2006) and is the author of various patents / patent applications in the area of Intelligent Networks, IMS and Fixed mobile convergence.

Ulf Olsson is Senior Expert at Ericsson’s Business Unit Multimedia, with a main interest in application architecture. He entered the world of programming forty years ago, working with large scale software system architectures for the past thirty. Initially, these efforts were in the field of distributed high performance systems for shipborne command and control, but as it turned out the principles and experiences from that field were surprisingly applicable also to the design of mobile packet data systems. He has been with Ericsson since 1996, being involved with systems like GPRS, PDC, UMTS, cdma2000 and - of course - IMS. His professional focus has recently shifted to the next level of abstraction: how to support and automate the business processes of a communications service provider.

He holds a M.Sc. in engineering physics from Stockholm’s Royal Institute of Technology, having also spent a scholarship year at Dartmouth College, New Hampshire. He is the co-holder of a number of patents in the mobile communications area, and is a frequent contributor to Ericsson Review.

Cathy Mulligan is a Visiting Researcher at Imperial College and was a founding Co-Director of the ICL Centre for Cryptocurrency Research and Engineering. She is also a Senior Research Associate at University College where she is Chief Technology Officer of the GovTech Lab and DataNet, which focuses on the potential and application of blockchain, AI and advanced communications technologies as a foundational part of the world’s economy. Cathy is an expert and fellow of the World Economic Forum’s Blockchain council and has recently become a member of the United Nations Secretary General’s High Level Panel on Digital Co-Operation. She holds a PhD and MPhil from the University of Cambridge and is the author of several books on telecommunications including EPC and IoT.

Ioannis Fikouras is currently chief architect for Services & Software at Ericsson Research. He joined Ericsson in 2005 to pioneer the application of service composition for IN, IMS and Internet services within Ericsson. His work produced the Ericsson Composition Engine (ECE) and other technologies. Ioannis then made the switch to the real world to work as Strategic Solution Manager for Ericsson Global Services in the area of IMS and Service Delivery Platform (SDP).

He has been active as a technology strategy consultant for the European Commission Directorate General for the Information Society and other national European research organisations since 2001.

Ioannis holds a degree in computer science from the University of Bremen, Germany, where he also earned a doctorate degree on Service Composition. He is the author of numerous papers and book contributions on service composition as well as various patents on service-oriented technologies in the telecommunications domain.

Anders Ryde is expert in network and service architecture within Ericsson AB in Sweden. He joined Ericsson in 1982 and has a background in network and service architecture development for multimedia enabled telecommunication, targeting both enterprise and residential users. He has been working with the evolution of IMS and IMS based services for more than a decade and is currently engaged in the ongoing evolution of mobile telephony service and networks to all IP and IMS. He holds a M.Sc. in electrical engineering from the Royal Institute of Technology, Stockholm.