What does SIR stand for?
SIR stands for "Service Initiation Request"
How to abbreviate "Service Initiation Request"?
"Service Initiation Request" can be abbreviated as SIR
What is the meaning of SIR abbreviation?
The meaning of SIR abbreviation is "Service Initiation Request"
What does SIR mean?
SIR as abbreviation means "Service Initiation Request"
