What does PTTD stand for?
PTTD stands for "Portable Touch-Tone Decoder"
How to abbreviate "Portable Touch-Tone Decoder"?
"Portable Touch-Tone Decoder" can be abbreviated as PTTD
What is the meaning of PTTD abbreviation?
The meaning of PTTD abbreviation is "Portable Touch-Tone Decoder"
What does PTTD mean?
PTTD as abbreviation means "Portable Touch-Tone Decoder"
