Abstract: When a telephone unit in the present invention receives a caller data at incoming call, it provides a new history data or updates a existing history data for storage in memory unit; depending on situation whether or not there exists a history data containing caller's telephone number and incoming date and time indicated in the caller data. It has a caller data voice transmittance processor which transmits via voice processor the stored history data to outside, in response to a reproduction command. Under the above-described configuration, the telephone unit can transmit the caller-related information to the user away from home; either for the entire information, for the latest information alone, or for the whole information received from a certain specific caller, upon optional demand of the user.