Replacement for end-of-life voice modem

Xfinity is saying my current modem with voice won't get more security updates. So far I'm not finding any recent replacements, the Netgear CM2050V and Motorola MT8733 are the only ones I find with Voice on Xfinity's compatibility website, and from reading about either, the netgear is not sold anymore and the Motorola is old and isn't getting security support anymore.