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