What does DTSN stand for?
DTSN stands for "Digital Tandem Switching Network"
How to abbreviate "Digital Tandem Switching Network"?
"Digital Tandem Switching Network" can be abbreviated as DTSN
What is the meaning of DTSN abbreviation?
The meaning of DTSN abbreviation is "Digital Tandem Switching Network"
What does DTSN mean?
DTSN as abbreviation means "Digital Tandem Switching Network"
