What does TDU stand for?
TDU stands for "Trunk Dial Unit"
How to abbreviate "Trunk Dial Unit"?
"Trunk Dial Unit" can be abbreviated as TDU
What is the meaning of TDU abbreviation?
The meaning of TDU abbreviation is "Trunk Dial Unit"
What does TDU mean?
TDU as abbreviation means "Trunk Dial Unit"
