About this episode
We unpack how touch tone dialing changed communication forever. Join us on a deep, quirky dive into telephone history. We’ll also deconstruct these sounds and reveal their hidden brilliance. Featuring author Annabel Dodd and telephone aficionado Jim Hebbeln of the Telecommunications History Group . Twenty Thousand Hertz is produced by Defacto Sound . Subscribe on YouTube to see our video series. If you know what this week's mystery sound is, tell us at mystery.20k.org . Support the show and get ad-free episodes at 20k.org/plus . Follow Dallas on Instagram , TikTok , Facebook , and LinkedIn . Join our community on Reddit . Check out Pessimists Archive wherever you get your podcasts. Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/phonetones Learn more about your ad choices. Visit megaphone.fm/adchoices