Specifications Scenario Hotel System Linux Screen/Keyboard 12 Standard Phone Digits keys 8 DSS keys 4 Function keys (Hold, Call Transfer, Redial, MWI) 3 Volume Control keys, Up/Down/Mute(with red color LED) 1 hands-free key Body Plastic Color Black Status Light 1（Red） Interface Wire interface（6P2C RJ11 interface） Power interface RJ9 interface（Handset x1） Security Slot x1 Power DC 12V/1A 2-Wire PoE Switch supply power Working Temperature 20-℃ - +45℃ Installation Desktop Wall mountable ((Need to purchase accessories separately)