I recently got setup with fios and wanted to use an older phone with it but am unable to make outgoing calls. I have a dial tone and when I push the buttons I hear a touch tone, but the phone doesn't make the call and ends up going to a busy signal.
I have tried seeing if it was a polarity issue but doesn't seem to be the case and It shouldn't be too old because the phone isn't pulse dialing.
Would really appreciate some help or if other people have had success using older phones with fios
Can you take the phone and connect it directly to the ONT? Also you can pick up new phone at Target for $15. It's very unlikely the issue is the ONT.