Mobile communication terminals and methods are provided. A mobile communication terminal includes a transceiver, audio processing unit, speaker, connecting unit, display unit, input unit, and control unit. The control unit is configured to control to display, while in a silent mode, a user interface for reproduction of a music file, in response to a user input while in the silent mode, control to reproduce the music file and to output audio signals corresponding thereto through the speaker, in response to receiving an incoming call in the silent mode, stop reproduction of a music file, and output an indication of the reception of the incoming call by vibration or without sound according to a setting of the silent mode, and while in the silent mode, control reproduction of a music file depending upon detection of a change of a connection state of an external audio output device.