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