What does DTMF stand for?

DTMF stands for "dual tone multifrequency (telephone)"

How to abbreviate "dual tone multifrequency (telephone)"?

"dual tone multifrequency (telephone)" can be abbreviated as DTMF

What is the meaning of DTMF abbreviation?

The meaning of DTMF abbreviation is "dual tone multifrequency (telephone)"

What does DTMF mean?

DTMF as abbreviation means "dual tone multifrequency (telephone)"