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How A Dial-up Modem Handshake Works | Hackaday
RetroTech Chris on Twitter: "Testing out my "new" US Robotics 56K Faxmodem. Dialed up the Diamond Mine BBS. Sound on if you like modem sounds. https://t.co/4yoKUNi1ji" / Twitter
56k modem internet connection sound - YouTube
56K Modem Sound PRO – Apps on Google Play
Dial-up internet was defined by a distinct sound
Modem - Wikipedia
How to disable dialing sounds and noise from a modem