You dont need much. Just pick the module and describe the problem. In my signature is a short video on opening a bug report.
I got mine working by going under Sangoma Settings and changing the option Run Wanpipe In DAHDI/DIGIUM Mode: to yes and rebooting.
Rwebb616’s “going under Sangoma Settings and changing the option Run Wanpipe In DAHDI/DIGIUM Mode: to yes and rebooting” worked for me too. Ports populated immediately on reboot.