What does IST stand for?
IST stands for "integrated system test; interswitch trunk"
How to abbreviate "integrated system test; interswitch trunk"?
"integrated system test; interswitch trunk" can be abbreviated as IST
What is the meaning of IST abbreviation?
The meaning of IST abbreviation is "integrated system test; interswitch trunk"
What does IST mean?
IST as abbreviation means "integrated system test; interswitch trunk"
