What does OIOD stand for?
OIOD stands for "operator identified outward dialing"
How to abbreviate "operator identified outward dialing"?
"operator identified outward dialing" can be abbreviated as OIOD
What is the meaning of OIOD abbreviation?
The meaning of OIOD abbreviation is "operator identified outward dialing"
What does OIOD mean?
OIOD as abbreviation means "operator identified outward dialing"
