What does PTBU stand for?
PTBU stands for "Packet Telephony Business Unit"
How to abbreviate "Packet Telephony Business Unit"?
"Packet Telephony Business Unit" can be abbreviated as PTBU
What is the meaning of PTBU abbreviation?
The meaning of PTBU abbreviation is "Packet Telephony Business Unit"
What does PTBU mean?
PTBU as abbreviation means "Packet Telephony Business Unit"
