What does ISDN stand for?
ISDN stands for "Isolated Subscriber Digital Network"
How to abbreviate "Isolated Subscriber Digital Network"?
"Isolated Subscriber Digital Network" can be abbreviated as ISDN
What is the meaning of ISDN abbreviation?
The meaning of ISDN abbreviation is "Isolated Subscriber Digital Network"
What does ISDN mean?
ISDN as abbreviation means "Isolated Subscriber Digital Network"
