Service execution across legacy and internet protocol multimedia subsystem domains

摘要: Systems and methods for service execution across legacy telecommunications networks Internet Protocol Multimedia Subsystem (IMS) domains are described. In one aspect, a convergence gateway is deployed in an IMS network to interface between the circuit-switched (CS) telephony (legacy network). The server extends network-supported services (including voice supplementary services, enhanced messaging) core subscribers. To this end, systems rely on implement supported generate corresponding results. results adapted signaling protocol state model provided or more