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