SYSTEM AND PROCESS FOR INTERNET PROTOCOL MULTIMEDIA SUBSYSTEM CENTRALIZED SERVICE WITH ENHANCED UNSTRUCTURED SUPPLEMENTARY SERVICE

摘要

A method of handling Service Data initiated by a wireless network for a mobile station, the mobile station configured to operate in a circuit-switched network and a packet-switched network, includes registering a Circuit Switched Access Adaptation Function in the mobile station for Supplementary Service, and sending a Service Data message initiated by the wireless network to applications registered in the mobile station.