A communication apparatus includes a main unit and a communication control unit. The communication control unit informs the main unit of an incoming call. The main unit makes a judgement on whether the incoming call should be accepted. In accordance with this judgement, the main unit instructs the communication control unit to respond to the incoming call. The communication control unit responds to the incoming call in accordance with the judgement by the main unit. In accordance with the state of a memory for storing received signals or with the called party number, the main unit makes a judgement on whether the incoming call should be rejected or ignored.