Simplification of portable radio telephone's operation

摘要

A portable radio telephone is provided with a body, keypad for entering telephone calling functions and data information and a display for displaying telephone functions and status. The portable radio telephone is also provided with a cover hinged to the telephone body for assuming a closed or open orientation. When closed, the telephone keypad and display are covered. The cover includes a transparent window for enabling the user to visibly observe the display when the cover is in a closed orientation.