What does NI1 stand for?
NI1 stands for "National ISDN 1"
How to abbreviate "National ISDN 1"?
"National ISDN 1" can be abbreviated as NI1
What is the meaning of NI1 abbreviation?
The meaning of NI1 abbreviation is "National ISDN 1"
What does NI1 mean?
NI1 as abbreviation means "National ISDN 1"
