What does SIS/VPN stand for?
SIS/VPN stands for "Special Information System/Voice Product Network"
How to abbreviate "Special Information System/Voice Product Network"?
"Special Information System/Voice Product Network" can be abbreviated as SIS/VPN
What is the meaning of SIS/VPN abbreviation?
The meaning of SIS/VPN abbreviation is "Special Information System/Voice Product Network"
What does SIS/VPN mean?
SIS/VPN as abbreviation means "Special Information System/Voice Product Network"
