What does Q.23 stand for?

Q.23 stands for "Signalling system for PABX"

How to abbreviate "Signalling system for PABX"?

"Signalling system for PABX" can be abbreviated as Q.23

What is the meaning of Q.23 abbreviation?

The meaning of Q.23 abbreviation is "Signalling system for PABX"

What does Q.23 mean?

Q.23 as abbreviation means "Signalling system for PABX"