What does SIP stand for?
SIP stands for "Secure voice Improvement Program"
How to abbreviate "Secure voice Improvement Program"?
"Secure voice Improvement Program" can be abbreviated as SIP
What is the meaning of SIP abbreviation?
The meaning of SIP abbreviation is "Secure voice Improvement Program"
What does SIP mean?
SIP as abbreviation means "Secure voice Improvement Program"
