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What does DUAL+TONE+MULTI+FREQUENCY Stand For?
For DUAL TONE MULTI FREQUENCY we have found 0 definitions.
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What does DUAL+TONE+MULTI+FREQUENCY mean? We know 0 definitions for DUAL+TONE+MULTI+FREQUENCY abbreviation. Possible DUAL+TONE+MULTI+FREQUENCY meaning as an acronym, abbreviation, shorthand or slang term vary from category to category. Please look for them carefully.