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