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