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