Abstract: A multi-function telephone dialer display device which is equipped with a display screen for displaying the use status and the caller identification information, and a dialer for responding to data input and for generating a data signal to the display screen to display the corresponding use status. When dialing with numerical keys, with standard non-numerical keys or when setting up a function, the data signal is coded into a numerical code representing the original digit, coded into a standard non-numerical code representing the original non-numerical keys or coded into a function key code representing the function, respectively.