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