PURPOSE: To transmit a rebuffing message to the call for sale or a prank call without going to a ringing mode at the time of recognizing the telephone number of a specific caller.

CONSTITUTION: A caller number being the telephone number of the caller is stored in a calling and incoming number memory 5 at the time of an incoming call, and compared with a registered number registered in a calling number registering memory 7 by a comparator 8. Then, when the number is matched, a response message memory 9 is operated without operating an incoming call ringing part 10. Thus, it is possible to directly receive the call for sale or a prank call by an automatic function without responding to it by a callee.