Your Nokia Was Speaking Morse - The SMS Beep Explained The most-heard sound of the mobile era was a code from 1844. Nokia's classic text alert did not jingle randomly: it spelled out its own name - SMS - in Morse code, billions of times, mostly unnoticed. The beep decoded Dots and dashes: ... -- .... Group them in threes and the rhythm resolves into S, M, S. Nokia chose the alert in the 1990s as an engineer's in-joke that became planetary background music. Why nobody noticed Morse left the school curriculum generations ago, so the code hid in plain hearing. Radio amateurs were the ones writing letters to magazines pointing it out - the last generation for whom beeps were a language. Translate any text to Morse code, play it as sound and download the audio free at: https://morsecodeworks.com/