I'm going to go out on a limb and say that there is not fiber in your home. If there is a fiber ran into your house as does AT&T will do in the case of FIOS which is fiber to the station then no this box would not work. That technology is on another platform. If there is only fiber to the curb which is what a lot of subdivisions have in town then yes. Centurylink is moving forward on their landline network I am betting some technician or girl on the phone told you that you have fiber. She lied, as most do. All companies are working on increasing the fiber network whether it be fiber to the crossbox, then it gets converted back to analog/digital signal or Fiber to the curb. What will answer this most of the time is what speed do you have. If you are getting 1.5mbps to 20mbps I'll bet you are copper to your house. 20mbps up to 60mbps then there is a chance for fiber to be to your home. ADSL is not a fiber platform so this platform would not work. There is IPDSL which is a 2nd platform. This is the newer platform in which TV and internet come through the phone. If you are a Centurylink customer that gets there 1.5mbps speed or just slightly faster then this modem will work for you. Sorry so lengthy.