Re: Yeah right
VOIP doesn't need much bandwidth at all, a few tens of kilobits/second if that.
what it does need is power. old fashioned analogue phones are powered by the phone line, you don't get that with an optical fibre, and so a SIP ATA needs a mains adapter and battery backup.
how many people have cordless phones at home where the base station has no battery backup? I think probably 99% of cordless phone base stations have no battery.