Dialtone heard during second call to ring group

I have a brand new Freepbx installation with incoming analog lines to a sangoma a200. I have call routing going to a time condition and then to a ring group. First call to the ring group is fine. Second call you can hear a dialtone, while also being able to hear the recipient, IVR, announcement, etc. I cannot find the cause of this. Any help would be appreciated.

Freepbx 12.0.38 installed from distro.

Check your analog wiring for “split pairs”