What does USP stand for?
USP stands for "User-to-User Signaling Process"
How to abbreviate "User-to-User Signaling Process"?
"User-to-User Signaling Process" can be abbreviated as USP
What is the meaning of USP abbreviation?
The meaning of USP abbreviation is "User-to-User Signaling Process"
What does USP mean?
USP as abbreviation means "User-to-User Signaling Process"
