Let's Encrypt - Can't generate new cert, ACME v1 EOL per LE

It requires manual intervention after the cert is renewed, but yes. I use it on my company PBX now.

I use certbot because the updated protocols it uses lets my Yealink phones recognize the certificate, unlike the built in FreePBX process.

Some of the newest phones work with the built in LE cert, but not the T4G series.

Here is where i posted baout setting up my system with certbot.