Antenna Port Cover: Used to cover antenna ports used for external antenna installation.
LAN Ports: Used to connect to your computer via Ethernet.
Power Button: Used to turn your device on and off.
Power Socket: Used to externally power your device.
Register Button: Used to register handsets with your device. This functionality may be restricted.
Reset Button: Used to perform a manual factory data reset on your device.
Telephone Port: Used to connect a telephone.
USB Port: Used to connect to an external device via USB.
WAN Port: Used to connect to an external Ethernet source.