FIOS is the verizon brand name for Fiber Optic Transfer To The Premisis (AKA FTTP). Verizon did not invent fiber optic, they just branded it FIOS (and it is exclusivly their brand).
Fiber has been around for a VERY long time and it is currently used in almost every major IP WAN.
Written by Ramsey Kutbi-fiosfaq
Last updated on 05.20.07