Joybubbles and Phreaking Tech

 https://en.wikipedia.org/wiki/Joybubbles

https://medium.com/@jessehixxx/the-winding-telephonic-odyssey-of-joybubbles-the-original-phone-phreak-7f28a71eea9f

https://newexplorations.net/podcast/002-rachael-morrison-joybubbles/

https://en.wikipedia.org/wiki/Phreaking#Phone_hacking

Phone Phreaking: A Call From Joybubbles | Joe Engressia https://www.youtube.com/watch?v=pK5pdCRsetY

https://en.wikipedia.org/wiki/Phreaking#In_popular_culture

How Telephone Phreaking Worked https://www.youtube.com/watch?v=4tHyZdtXULw , https://www.youtube.com/@The8BitGuy/videos

Sugarloaf - Don't_Call_Us,_We'll_Call_You - 1974 https://www.youtube.com/watch?v=d6fFI8VQci8

https://thedigitallabyrinth.blogspot.com/search?q=Captain+Crunch