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