What does SLB stand for?
SLB stands for "Subscriber Local Busy"
How to abbreviate "Subscriber Local Busy"?
"Subscriber Local Busy" can be abbreviated as SLB
What is the meaning of SLB abbreviation?
The meaning of SLB abbreviation is "Subscriber Local Busy"
What does SLB mean?
SLB as abbreviation means "Subscriber Local Busy"
