DATA/TELEPHONE SWITCHING METHOD IN REPEATER STATION

PURPOSE: To allow an FM tone signal detecting function to be unnecessitated by executing switch from data transmission to a telephone call by transmitting a station selection signal at the time of data transmission and executing switch from the telephone call to data transmission by the answer tone detection of a modem. CONSTITUTION: When it becomes necessary to speak with the telephone equipment 23 of a communication terminal station 2 from the telephone equipment 13 of a communication terminal station 1, a communication terminal 11 instructs the terminal 21 of the terminal station 2 to switch by data transmission by way of the communication terminal 31 of a repeater communication station 3. The terminal 21 switches a switching switch 24 to the telephone equipment 23. The communication terminal 31 of the repeater station 3 repeats a response signal from the terminal 21 to the terminal 11 and switches switching switches 34A and 34B to a telephone equipment 33. The terminal 11 switches a switching switch 14 to the terminal equipment 13. At the time of finishing the speech of the telephone equipment 13 and 23, the switching switch is switched to the side of a modem with the signal of a handset. Modems 11 and 22 output an answer tone and a modem 32A, etc., detects it to switch the switch 34A, etc.