What does DTFM stand for?
DTFM stands for "Dual Tone Multifrequency"
How to abbreviate "Dual Tone Multifrequency"?
"Dual Tone Multifrequency" can be abbreviated as DTFM
What is the meaning of DTFM abbreviation?
The meaning of DTFM abbreviation is "Dual Tone Multifrequency"
What does DTFM mean?
DTFM as abbreviation means "Dual Tone Multifrequency"
