IP Multimedia Subsystem (IMS) technology, which merges the Internet with interactive telecommunications, represents the here and now for today’s packet-switched networks. Consequently, anyone working with or around these converging fields needs to possess a fundamental understanding of IMS and how this technology is poised to change the way new applications are designed and deployed.
IMS: A New Model for Blending Applications goes beyond most references in this field. Rather than offer the usual explanation of the standard itself, the authors address how IMS-based services might be deployed in an operator’s network. Leveraging the inside knowledge gained from years of working at the forefront of IMS research, the authors delineate the application layers and the applications that can be implemented using an IMS network. For those unfamiliar with IMS, they provide an overview of its key components and the signaling standards used for the implementation of an end-to-end IMS service.
Significant concepts are conveyed through real-life vignettes that describe how end users might actually use interactive IMS applications in the course of their day. This approach mimics the way an operator’s marketing organization might go about building a business case for IMS application deployment. While technical enough to meet the needs of engineers, this approach will greatly assist marketing, sales, and managerial professionals with gaining a basic understanding of IMS, as well as a sense of the numerous applications driving the field forward.
"Mark Wuthnow, Matt Stafford, and Jerry Shih are well respected within the telecommunications industry and have been at the forefront of IMS for the operator industry for several years. Collectively, they cover many technologies related to IMS or interacting with IMS. Their expertise will provide readers with a unique insight and perspective on IMS."
— Paul Mankiewich, CTO, Alcatel-Lucent America
Components of an IMS Architecture
The Path to IMS – Evolution of the Cellular Switching System to 3G
Standards Organizations for the IMS
IMS Control Plane
IMS Bearer Plane
IMS Application Plane
IMS Signaling Primer
Overview of SIP
Session Description Protocol (SDP)
XML Configuration Access Protocol
Message Session Relay Protocol (MSRP)
IMS/OMA Based Enablers
Presence and Availability
Group List Management
Push-to-Talk over Cellular
Mobile Location Services
Applications and Use Cases
Consumer Market Use Cases
Enterprise Market Use Cases
Converged Market Use Cases