Methods to start a communication subsystem multimu00ecdia IP for a user to operate an application server to operate a control function of state / called Mark.To operate a control function of state / service call and to ensure signal sent between a server function call control / status of a subsystem multimu00ecdia IP and an application server for session initiation protocol

摘要

Methods for initiating a communication subsystem multimu00ecdia IP for a user to operate an application server to operate a control function of state / called Mark.To operate a control function of state / service call and to ensure signal sent between a server function call control / status of a subsystem multimu00ecdia IP and an application server for session initiation protocol method for starting a communication. The action of the subsystem IP multimedia to a user who is not registered beforehand with the IP multimedia subsystem.The method comprises receiving a request for communication of the user in an application server for session initiation protocol, via an interface to an external network, or receives a stimulus generated internally or externally, requiring the establishment of a communication Tion of the multirnu00eddia IP, allocate a function to control the state / call service for the user.A sip redirect request from the application server to the control function of state / service call allocated, and establish the communication required.