What does PBX stand for?
PBX stands for "PBX Flat Rate"
How to abbreviate "PBX Flat Rate"?
"PBX Flat Rate" can be abbreviated as PBX
What is the meaning of PBX abbreviation?
The meaning of PBX abbreviation is "PBX Flat Rate"
What does PBX mean?
PBX as abbreviation means "PBX Flat Rate"
