METHOD FOR CONTROLLING FAX INCOMING CALL OF RADIO DATA COMMUNICATION INTERWORKING APPARATUS IN DIGITAL MOBILE COMMUNICATION NETWORK

摘要

PURPOSE: A method for controlling a fax incoming call of a radio data communication interworking apparatus in a digital mobile communication network is provided to perform a fax transmission service without a fax command or a loss of data by using a transmission hierarchy protocol and a variable fax server mode. CONSTITUTION: A radio data communication interworking device receives fax commands from a mobile terminal(413). The radio data communication interworking device determines whether a fax class is 2 or not(414). The radio data communication interworking device switches a current state to a fax mode and a fax state to a state of A if the fax class is 2(415). The radio data communication interworking device checks a modem response command if the fax class is not 2(416). The radio data communication interworking device switches the fax state to a state of B and transmits the fax commands to the modem if the radio data communication interworking device receives the modem response command(418). The radio data communication interworking device checks whether the fax state is a state of C, or not(423). The radio data communication interworking device receives data from the modem(419). The radio data communication interworking device checks whether the fax state is the state of B and the received data are message carrier signals(420). The radio data communication interworking device switches the fax state to the state of C if the radio data communication interworking device receives the message carrier signals(421). The radio data communication interworking device transmits the received data to the mobile terminal(422). An operating process of a fax server mode is performed if the fax state is the state of C(423).