What does CCIS stand for?
CCIS stands for "Common Channel Inter-Office Signaling"
How to abbreviate "Common Channel Inter-Office Signaling"?
"Common Channel Inter-Office Signaling" can be abbreviated as CCIS
What is the meaning of CCIS abbreviation?
The meaning of CCIS abbreviation is "Common Channel Inter-Office Signaling"
What does CCIS mean?
CCIS as abbreviation means "Common Channel Inter-Office Signaling"
