CALLER NUMBER NOTIFICATION DEVICE, CALLER NUMBER NOTIFICATION SYSTEM, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To display a caller number of a call originated to an additional dial-in number in a mobile terminal 3 of a transfer destination, and display a call incoming history when the mobile terminal 3 cannot respond.SOLUTION: A caller number notification system of the present invention comprises means for: receiving a caller number and additional dial-in number included in an incoming call signal from a switch 1; storing the received caller number and additional dial-in number with reception time and date as history information; and notifying of the caller number in response to inquiry from a mobile terminal 3. The mobile terminal 3 comprises: means for inquiring of a caller number notification device 2 about a caller number of an incoming call when the incoming call has arrived; and means for displaying the caller number notified of from the caller number notification device 2. The mobile terminal 3 further comprises means for acquiring incoming call history information from the caller number notification device 2 and makes the information be displayed even when the mobile terminal has not been capable of receiving an incoming call signal.