IP Multimedia Subsystem
IP multimedia subsystem is a brand-new form of multimedia services, which can meet the needs of terminal customers for more novel and diversified multimedia services. It is an important way to introduce differentiated services such as the triple integration of voice, data, and video, and to implement VoLTE and VoNR high-definition voice services.
The design of IMS architecture and CSCF utilizes the SoftSwitch technology to realize the separation of business and control, and separation of call control and media transmission. Although IMS is a system developed by 3GPP for mobile users to access multimedia services, it is an important part of the solution to the integration of mobile and fixed networks because it fully integrates the technologies of the IP domain.
