DMS-10: The first phone call!
16:34
Booting up the 3ESS
18:21
Fixing my old noisy copper phone line
17:01
🔌 DMS10 — Power Up! ⚡️
11:43
How & Why Phone Sounds Are Made - Telephone Tuesdays
18:32
Crossbar telephone exchange demo
16:08
Grounding and Wiring our New Switch
17:40
Plugging a Vintage Telephone Exchange Into The Internet So People Can Use It
17:32