What does CPTD stand for?
CPTD stands for "Call Progress Tone Detector"
How to abbreviate "Call Progress Tone Detector"?
"Call Progress Tone Detector" can be abbreviated as CPTD
What is the meaning of CPTD abbreviation?
The meaning of CPTD abbreviation is "Call Progress Tone Detector"
What does CPTD mean?
CPTD as abbreviation means "Call Progress Tone Detector"
