eli5: The “handshake” between dial-up modems and why it made those sounds

Question

eli5: The “handshake” between dial-up modems and why it made those sounds

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Answer 1

Here’s a handy page + chart that talks about the handshake sequence in detail: [https://www.windytan.com/2012/11/the-sound-of-dialup-pictured.html](https://www.windytan.com/2012/11/the-sound-of-dialup-pictured.html)