a reception unit receiving incoming signals and obtaining pieces of originator ID information from the received incoming signals, the pieces of originator ID information respectively identifying originators of the received incoming signals;

a judgment unit to judge, for each of the incoming signals received by the reception unit, whether, before reception of said each of the incoming signals ended, a response had been made to said incoming signal;

an ID information storage unit storing the obtained originator ID information in a state, which corresponds to a result of a judgment made by the judgment unit, that is distinguishable for each piece of originator ID information whether a response has been made to said incoming signal from which the piece of originator ID information was obtained;

an image storage unit storing photographic image data corresponding to the pieces of originator ID information respectively identifying originators of received incoming signals;

a not-responded signal notification unit to display notification information for only missed calls after end of reception of the incoming signals of the missed calls, wherein the notification information to be displayed is read out from the ID information storage unit, and the missed calls are calls which ended without being responded to and entering a conversation; and

a screen display unit, when an incoming call from an originator has ended without being responded to and without entering into a conversation, with a user of the device when the user is in an existing call displaying a number of the missed calls and a photographic image of the originator that corresponds to the originator ID information of the originator when the device is set to picture ringer function.