What does CSDN stand for?

CSDN stands for "Circuit Switched Data Network"

How to abbreviate "Circuit Switched Data Network"?

"Circuit Switched Data Network" can be abbreviated as CSDN

What is the meaning of CSDN abbreviation?

The meaning of CSDN abbreviation is "Circuit Switched Data Network"

What does CSDN mean?

CSDN as abbreviation means "Circuit Switched Data Network"