Document:Q5177
From Rhizome Artbase
The International Directory of Fictitious Telephone Numbers is a comprehensive collection of telephone numbers that are designated never to function; their purpose is to be reserved indefinitely for use within film productions so that unsuspecting people aren't disturbed by inquisitive viewers. The printed directory is displayed with a telephone that has been reprogrammed to automatically call numbers from the directory at random. The sound of the phone cycles between numbers dialed and a dead tone, or a recorded message from a telephone exchange.