The 3G IP Multimedia Subsystem (IMS) (PDF)

The 3G IP Multimedia Subsystem (IMS): Merging the Internet and
the Cellular Worlds, Second Edition is an updated version of
the best-selling guide to this exciting technology that will merge
the Internet with the cellular world, ensuring the availability of
Internet technologies such as the web, email, instant messaging,
presence and videoconferencing nearly everywhere. In this
thoroughly revised overview of the IMS and its technologies, goals,
history, vision, the organizations involved in its standardization
and architecture, the authors first describe how each technology
works on the Internet and then explain how the same technology is
adapted to work in the IMS, enabling readers to take advantage of
any current and future Internet service.

Key features of the Second Edition include:

* New chapter on Next Generation Networks, including an overview
on standardization, the architecture, and PSTN/ISDN simulation
services.

* Fully updated chapter on the Push-to-talk over Cellular (PoC)
service, covering the standardization in the Open Mobile Alliance
(OMA), architecture, PoC session types, user plane, and the Talk
Burst Control Protocol.

* Several expanded sections, including discussion of the role of
the Open Mobile Alliance in the standardization process, IPv4
support in IMS, a description of the IMS Application Layer Gateway
and the Transition Gateway, and a description of the presence data
model.

* Updated material on the presence service, session-based instant
messages with the Message Session Relay Protocol (MSRP), and the
XML Configuration Access Protocol (XCAP).

* Supported by a companion website on which instructors and
lecturers can find electronic versions of the figures.

Engineers, programmers, business managers, marketing
representatives, and technically aware users will all find this to
be an indispensable guide to IMS and the business model behind
it.