MOBILE CENTRALIZATION DEVICE AND WIRELESS DATA SERVICE SYSTEM USING THE SAME AND SERVICE METHOD THEREOF

摘要

PURPOSE: A mobile centralization device is provided to build a wireless modem for interfacing with each mobile communication system without influencing on functions of a mobile communication network and a wireless network, thereby receiving all services supplied from the mobile communication network. CONSTITUTION: A main controller(21) controls/manages an entire system, and performs call controlling and call processing functions. A wireless modem(23) wirelessly interfaced with a mobile communication network simultaneously supplies voice data and wireless service data. A digital switch(25) interfaced with a PSTN and the wireless modem(23) selectively switches a speech path to the PSTN or the wireless modem(23). A subscriber interface(27) interfaced with the digital switch(25) interfaces with a subscriber telephone. A data interface(29) simultaneously supplies voice data and wireless service data, or interfaces data inputted from external equipment.