What does ISUP stand for?
ISUP stands for "ISDN Signaling User Part"
How to abbreviate "ISDN Signaling User Part"?
"ISDN Signaling User Part" can be abbreviated as ISUP
What is the meaning of ISUP abbreviation?
The meaning of ISUP abbreviation is "ISDN Signaling User Part"
What does ISUP mean?
ISUP as abbreviation means "ISDN Signaling User Part"