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