What does PSTS stand for?
PSTS stands for "Public Switched Telephone Service"
How to abbreviate "Public Switched Telephone Service"?
"Public Switched Telephone Service" can be abbreviated as PSTS
What is the meaning of PSTS abbreviation?
The meaning of PSTS abbreviation is "Public Switched Telephone Service"
What does PSTS mean?
PSTS as abbreviation means "Public Switched Telephone Service"
