Hi - We got Sonic Fiber several months ago, but only just recently finally bought a phone to make use of our voice connection. We bought a very simple traditional phone. When I connect it to the voice line, we can faintly but distinctly hear voices through the dial tone -- I think it's some kind of AM talk radio station. The phone itself is usable, but the radio feedback persists.
FYI when we first had the technician out here to set up Fiber we tested the line and I don't recall hearing this at the time.