The D7212B, D7212B1 or D7212 panel types are compatible with the D928.
The D7212G-GV4 panel types are notcompatible with the D928 because these panel types are not listed for commercial fire applictions.
It may be nociced that after changing the setting "Two Phone Lines" to Yes then unlatching and relatching the Reset Pin, it is changed back to No. This would be due to the panel being incompatible with the D928 dual phone line module.