User interface for a radio telephone

摘要

A radiophone comprises a user interface and a controller unit connected to the user interface. The user interface i.e. comprises a display and a keypad having at least one operation key whose function is controlled by the controller nut and is displayed in a predetermined area of the display. The function of said at last one operation key is displayed in a predetermined area of the display. The radiophone is capable of assuming a plurality of states in which a group of predetermined actions associated with the state concerned may be performed by said at least one operation key. The controller unit displays one of said group of actions as a default function in the predetermined area of the display.