What does FDT stand for?

FDT stands for "full-duplex teletype"

How to abbreviate "full-duplex teletype"?

"full-duplex teletype" can be abbreviated as FDT

What is the meaning of FDT abbreviation?

The meaning of FDT abbreviation is "full-duplex teletype"

What does FDT mean?

FDT as abbreviation means "full-duplex teletype"