What does TTR stand for?
TTR stands for "TCM-ISDN Timing Reference"
How to abbreviate "TCM-ISDN Timing Reference"?
"TCM-ISDN Timing Reference" can be abbreviated as TTR
What is the meaning of TTR abbreviation?
The meaning of TTR abbreviation is "TCM-ISDN Timing Reference"
What does TTR mean?
TTR as abbreviation means "TCM-ISDN Timing Reference"
