I just got a rotary phone and connected to the modem in the same connection for our land line. I get a dial tone and have received a call but don't seem to be able make a call. Can I use a rotary phone with my Comcast system?
Rotary telephones are not compatible with Xfinity Voice service.
But in https://forums.xfinity.com/t5/Home-Phone-Features/Pulse-Dialing-Is-It-a-Possibility/m-p/3217253#M509... employee @ComcastJoeTru stated that it might be possible.