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Meaning of tone dialing | Babel Free

Noun CEFR B2

Definitions

A system of telephone dialing in which each digit is transmitted as a burst of a single audio frequency.

US, uncountable

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

tone dialling tone hole tone in tone indicator tone mapping tone mark