The NQ-EDP01 is a convenient remote, weather-resistant, hands-free, half-duplex intercom station with call button. The NQ-EDP01 is a fantastic solution for applications such as security checkpoints at outside doors and entryways, or indoor check-in for secure spaces. The NQ-EDP01 features easy wiring using standard Cat5 Ethernet cable and power via standard PoE switches. It can also be installed and used in Standalone Mode with third-party SIP 2.0 compliant VoIP systems.