My family used a 1-bit missed call signaling system in Brooklyn in the 1950’s. Both -one and -two ring missed calls indicated prearranged messages, generally “a

My family used a 1-bit missed call signaling system in Brooklyn in the 1950’s. Both -one and -two ring missed calls indicated prearranged messages, generally “arrived safely” or “leaving now.” Back then, poorer families had party telephone lines, too.