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Dual-tone multifrequency (DTMF)
A method used by the telephone system to recognise the keys pressed when dialling. Pressing a key on the phone's keypad generates two simultaneous tones, which are decoded by the exchange to determine which key was pressed.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Mobile communications
- Category: Mobile phones
- Company: Nokia
- Product:
- Acronym-Abbreviation:
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