To provide a portable telephone set capable of selecting sound information without impairing the sensation of utilization of a user, and to provide a method for controlling the portable telephone set.
While shifting to a background execution state of turning a predetermined application relating to the output of the sound information into an inactive state, while maintaining sound output by the application, when a first key is operated, the portable telephone set displays characters corresponding to the first key as a character string at a display section, and also displays numbers corresponding to the first key as a number string at the display part. When a second key is operated, while displaying both the character string and the number string, selection processing for selecting and instructing the sound information which serves as the object of the sound output to the predetermined application on the basis of the character string is performed. When a third key is operated while displaying both the character string and the number string, transmission processing based on the number string is performed.
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Hayashi Ichiyoshi
Toshiyuki Inui