Comcast Voice with analog wired phones

Hello

Looking to switch to Comcast Voice potentially. Currently have Ziply Fiber POTS.

Currently have Xfinity Internet 300. It's networked through the home with Netgear Powerline Nano 200 Ethernet adapters. We do not use Wi-Fi here.

Our Motorola MT7711 cable modem does support Comcast Voice. So I understand one can plug in an ANALOG phone directly to the back of that. But what about phones in other locations? Do not want to use cordless phones. So that is not an option.

Saw a thread about someone asking if they can use a Grandstream HT801, and that was a negative.

So -- are there any WIRED VoIP options / strategies for ANALOG phones in other locations - bedroom, office, kitchen, etc...?

Heck...are there any corded VoIP (Non-analog) phones that would work? Don't have any experience with this at home.