What does DDT stand for?
DDT stands for "Detect Dial Tone"
How to abbreviate "Detect Dial Tone"?
"Detect Dial Tone" can be abbreviated as DDT
What is the meaning of DDT abbreviation?
The meaning of DDT abbreviation is "Detect Dial Tone"
What does DDT mean?
DDT as abbreviation means "Detect Dial Tone"
