I kinda liked it…
Such a weird sound but same. I wonder what the story is behind it… or maybe some dude just randomly decided to make it that way 🤔
It was literally an audible translation of 1s and 0s. Traditional phonelines were only able to transmit noise - this was the solution for transmitting data.
I think this corroborates your explanation. Regardless, i found it entertaining 😂 https://youtu.be/GCe6xnxdN1Y
Great little animation. Yes, by default, the speaker was active during the handshake for the user to confirm that all was well.