Disclosed is a mobile phone to provide call notification device when stored in a dark place such as in a bag. A sound generated when there is a call incoming to the mobile phone 1, the sound detection sensor 3 is brought into close contact with the vibration sound of the mobile phone 1 the incoming signal transmitter 2 that occurs in the silent mode call to the mobile telephone 1 detects that it is. The signal transmitted from the optical detection sensor 4 sound detection sensor 3, is separated the storage conditions of the mobile phone 1 in brightness, the incoming signal only signal generation circuit 6 when the mobile phone 1 is stored in a dark place me send. Incoming signal to indicate that there is an incoming call to incoming display 14 of the incoming signal receiver 9. Mobile phone 1 is the normal mode, only when the even storage location in case any of the manner mode is in a dark environment, such as in a bag make the incoming display. [Selection Figure] Figure 1
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