INTER-WORKING MOBILE COMMUNICATION SYSTEM AND MOBILE COMMUNICATION TERMINAL CAPABLE OF SERVICE INFORMATION NOTIFYING AND SERVICE INFORMATION NOTIFYING METHOD

摘要

A network interworking mobile communication system capable of supplying service information, a mobile communication terminal, and a service information supply method are provided to guide information on services available in a network where the terminal is currently registered, to a terminal user when the terminal moves between different networks, thus the user can easily check the available services. MSCs(Mobile Switching Centers)(24,34) store supportable service lists in network service tables to manage the stored lists, and search the tables according to a supportable service type confirmation request to notify of service information supportable in the current networks(20,30). A mobile communication terminal(50) demands supportable service type confirmation by using a predetermined message in case of initial location registration or after completing roaming between the networks(20,30), stores/manages service information supportable in the currently located network by updating service lists of a user service table, and checks the service lists to display the currently supported service information on a terminal screen.