Chapter 13. Evolved IP Multimedia Architecture and Services
13.1. Introduction
This chapter aims to explain the main new concepts and evolution of IMS supporting the mobile telephony evolution. The intent is that it will provide background and create awareness for how value-added service developers need to understand this evolution.
13.2. Overview of the Evolved IMS Architecture
The main driver of the IMS and IMS service standard since 3GPP Release 7 has been to enable and support the evolution and migration of mobile telephony. The IMS architecture and generic service concepts were finalized in 3GPP Release 7 and it coincided with the handover of the MMTel service developed in ETSI TISPAN into 3GPP. These two have been the cornerstones for evolution ...
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