Using dual-tone multi-frequency (DTMF) technology provided “touch-tone” service that would become the worldwide standard for telecommunication signaling. The system uses audible tones for each of the ...

[poprhythm]’s Touch Tone MIDI Phone is a fantastic conversion of an old touch tone phone into a MIDI instrument complete with intact microphone, but this project isn’t just about showing off the ...

The sheer volume of old telephones was off the hook. When Touch-Tone technology became widespread in the 1980s, the writing was on the wall for the rotary phone. "Now, if you want to see a herd of ...

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or ...