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