MOBILE PHONE DEVICE

A mobile phone device includes: a display device that switches a display state between first and second display states; a communication unit that executes a call between a first user and a second user who makes a call using another phone device; an image generation unit that generates a first image indicating first information including a phone number of the another phone device based on identification information and generates a second image indicating second information related to the second user based on the identification information; a detection unit that detects a switching operation by the first user to switch the display state of the display device from the first display state to the second display state; and, a display control unit that changes the display state to the second display state and causes the display device to display the second image in a case where the switching operation is detected.