What would happen inside an electromechanical central office if you left your phone off hook?
From the channel Connections Museum
What happens if you leave your phone off the hook?
Submitted 4 months ago by DocMcStuffin@lemmy.world to videos@lemmy.world
https://www.youtube.com/watch?v=ZaKGgDaApkM
kalkulat@lemmy.world 3 months ago
Wow. I can’t believe it took me so long to learn about that. Interesting, thanks!