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