... . -Handsfree telephone -Auto released line -CE,RHOS ORBITA telephone for hotel telephone system -provide logo printing Main features:1.10 ... Settings: under the Pick-up handset or Speaker condition, press “ * ” for 4 seconds,and listen “ beep ” cont voice ), then input digit (0 ... -up or speaker condition,press volume key to adjust volume for 4 level cycle. 5) Flash Under pick-up condition,press ...