One late night many decades ago, I chanced upon a technical description of the Touch-Tone system ... channels to generate the dual tones, I bet I can dial the phone! I sprang out of bed and ...
One late night many decades ago, I chanced upon a technical description of the Touch-Tone system ... channels to generate the dual tones, I bet I can dial the phone! I sprang out of bed and ...
The dialing technology in an analog telephone. Each digit has a physical button that transmits a different audio tone when depressed. Known as the dual-tone multifrequency (DTMF) system ...
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