Dial-Up Modem Sound | What Was That Dial-Up Internet Sound?
The Mechanics and Meaning of That Ol' Dial-Up Modem Sound - The Atlantic
Back to basics: Decoding Audio Modems with Audacity | by Maxime Leblanc | poka-techblog | Medium
This is what a dial up modem connection looks like on the spectrogram (DTMF handshake and call). : r/interestingasfuck
How to Turn Off (or Customize) Sound Effects in Windows
Sk001 Professional Rechargeable Wav Mp3 Format Sound Recording Device 32gb Flash Long Time Recording Digital Usb Voice Recorder - Buy Digital Voice Recorder User Manua,Record Voice,Recordable Voice Button Product on Alibaba.com
GitHub - quiet/quiet: Transmit data with sound. Includes binaries for soundcards and .wav files.
Dial-Up Modem Sound | What Was That Dial-Up Internet Sound?
Freesound - "alien dial-up modem, or an alien printer.wav" by burning-mir