COMmander 6000: On the Base Cuircuit Board of the PBX, the various buttons are located to e. g. reboot the PBX, to restore the previous firmware or to set the PBX to factory settings.

COMmander 6000R/RX: On the CPU module of the PBX, the various buttons are located to e. g. reboot the PBX, to restore the previous firmware, to set the PBX to factory settings or to shut down the PBX.