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