A Uniform Session-Based Media Controlling Framework for IMS Terminal

In this paper we present a uniform session-based media controlling framework for IMS terminal. With this framework rich innovative communication services session-based can be developed conveniently to provide users with novel communication experience in IMS. The author analyzes the creation, modification and termination of the sip session in detail, and studies changes of media stream state along with session. This paper sums up the rules of media operations, and describes a flexible and extensible framework through which one sip signaling stack manages multiple media stacks.