What does ITSO stand for?
ITSO stands for "Incoming Trunk Service Observation"
How to abbreviate "Incoming Trunk Service Observation"?
"Incoming Trunk Service Observation" can be abbreviated as ITSO
What is the meaning of ITSO abbreviation?
The meaning of ITSO abbreviation is "Incoming Trunk Service Observation"
What does ITSO mean?
ITSO as abbreviation means "Incoming Trunk Service Observation"
