-ECO: EMS(Energy Management System)/standby power breaker/lightout/solar-power link/IHD/electronic meters link

-Security: monitoring CCTV in public area/integrated door lock

-Convenience function: single-pass system/visitor identification/ voice mail/alarm/scheduling/elevator call/apartment complex information search/video and voice call between households/ integrated unmanned delivery

-PoE: Serveless system with PoE