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