UIFN 
UIFN (Universal International Freephone Number)
Telecom Definition
A toll-free telephone number for international calling. A UIFN charges the cost of the call to the called party. Standardized by the ITU-T, the numbering convention for UIFNs is 800 + 8 digits. See also ITU-T and toll free service.
Print this Page
Suggestion Box
Send to Friend
