What does OSTR stand for?
OSTR stands for "Operator Services Trouble Report"
How to abbreviate "Operator Services Trouble Report"?
"Operator Services Trouble Report" can be abbreviated as OSTR
What is the meaning of OSTR abbreviation?
The meaning of OSTR abbreviation is "Operator Services Trouble Report"
What does OSTR mean?
OSTR as abbreviation means "Operator Services Trouble Report"
