What does ISDN stand for?
ISDN stands for "Industry Standards Developed by the National"
How to abbreviate "Industry Standards Developed by the National"?
"Industry Standards Developed by the National" can be abbreviated as ISDN
What is the meaning of ISDN abbreviation?
The meaning of ISDN abbreviation is "Industry Standards Developed by the National"
What does ISDN mean?
ISDN as abbreviation means "Industry Standards Developed by the National"
