... 10 Guest Service Button programmable. -Handsfree telephone -Auto released line -CE,RHOS ORBITA telephone for hotel telephone system -provide logo printing Main features: ... set through 9 groups one-key-dialing,such as reception, business center, guest-room service, laundry room, and so on. ... will be auto hangup,and not impact a new incoming call. 10) Speaker,Hold,Flash(standard time 600ms) functions. ...