Many books have been written about IMS, so why do we think another is needed? Most of
the existing books are written from the perspective of those who implement the technology,
either network vendors or operators. There is no such focus for developers. The standards
that form the basis of IMS are complex – as they are designed to solve complex problems –
and require specialized knowledge to understand. Developing services and applications on
IMS requires a different set of skills and knowledge, however, and these are generally overlooked
in existing books. This book covers these aspects, from creating small applications to
utilizing the full features of IMS Communication Services and RCS.
This is a unique IMS book, therefore, written not from the perspective of building an
IMS system, but from using it to create new and interesting services. We base this on many
years of practical engineering experience, pointing out the important bits as we go along so
you can avoid getting lost in the detail. This includes a walk-through of the IMS infrastructure,
but in a novel way: starting from fi rst principles, then gradually introducing the core
concepts. We also provide examples of how services are built: general service composition
principles as well as standard services like Multimedia Telephony, and industry standard
service profi les like Rich Communication Suite (RCS).
Academic Press is an imprint of Elsevier
The Boulevard, Langford Lane, Kidlington, Oxford, OX5 1GB
225 Wyman Street, Waltham, MA 02451, USA
First published 2011
ISBN: 978-0-12-382192-8