The Research of Evolved Networks for IMS Services Interworking

The IP multimedia subsystem (IMS) is currently expected to provide the basic architecture framework for the next generation network and consolidate both circuit-switched and packet-switched networks into on single network for all services. Specially, the IMS could very well be the best solution for most telecom operators as well as mobile operators. Also, interworking between IMS infrastructures is considered to be a next step. This purpose of this paper is to research of evolved networks for IMS services interworking.