What does CIS stand for?
CIS stands for "Channel Interoffice Signaling"
How to abbreviate "Channel Interoffice Signaling"?
"Channel Interoffice Signaling" can be abbreviated as CIS
What is the meaning of CIS abbreviation?
The meaning of CIS abbreviation is "Channel Interoffice Signaling"
What does CIS mean?
CIS as abbreviation means "Channel Interoffice Signaling"
