Twenty Thousand Hertz

#63 | Phone Tones

av Twenty Thousand Hertz | Publicerades 3/25/2019

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.  20K is produced out of the studios of Defacto Sound and hosted by Dallas Taylor.  Follow the show on Twitter & Facebook. Our website is  Become a monthly contributor at  If you know what this week's mystery sound is, tell us at  Go to for your $5 complete hair kit.  Check out Pessimists Archive wherever you get your podcasts.  Episode transcript, music, and credits can be found here: 

Om Podcasten

A lovingly crafted podcast that reveals the stories behind the world's most recognizable and interesting sounds.