To enable a meticulous transfer of a telephone call that arrives by recognizing a received originator's number, converting it into voice, connecting and transferring a recognized 1st originator's number to a previously designated telephone number, also disconnecting the telephone, converting the originator's number into voice and transferring it to a 2nd originator's number recognized by an originator's number recognizing means.

When it is desired to receive at telephone call from a very important specified person when a user is out, the specified person and the telephone number of a transfer destination are inputted as significance A by inputting part 26. When a CPU 21 detects a call in either of two telephone lines, a Caller ID receiving part 27 detects Caller ID information, recognizes the other party that calls and shows it on a displaying part 25. Off-hook is performed, a line is connected and the opposite communication party is confirmed by the caller ID. When it is the significance A, an incoming line is once made to be in a hold state, a hold tone and a message to the effect that a telephone call is transferred are sent to notify a calling person.