V Phone Number
V: D: Q: And pne number? 3
At the end of my friend's email is V: pneum number, D: pneum number and F: pneum number, what does V mean? D? F?
V = sound
F = fax
D =? Directly possible, maybe data
V Phone Number
V Phone Number
D = Hotline means someone is calling from outside the office or facility. This usually happens in large companies with many pneumatic lines.
Unpublished
