To provide an interruption reporting system, its control method and a control program capable of achieving a comfortable call by drawing the attention of a behind occupant on the call while assuring safety.

The interruption reporting system comprises a front speaker 3 and a front display unit 23 installed at the front seat side including a driver's seat of a vehicle, a rear display unit 5 and a headphone 6 installed at the rear seat side, electronic equipment 100 connected to these equipment and constituted to communicate with the outside through a cellular phone 1, a communication detection part 30a for detecting the communication state of the cellular phone 1, and a voice reporting part 30b and an image reporting part 30c reporting the communication state to the rear display unit 5 and the headphone 6 according to the detected communication state.