Connection standard: DECT (digital); Package contents: tube base ; Radius of action indoors: 50 ;m; Radius of action on the ground: 300 ;m; Functions/capabilities: Caller ID Intercom (internal link) ; Supported handsets (base): 4 ;pc; Phonebook: 50 ;rooms; Ringtones: 10 ;pc; Memory included: 10 ;rooms; Memory outgoing: 10 ;rooms; Alarm clock: +; The display on the handset: monochrome / 1.4" / ; Display backlight: + / amber / ; Keypad lock: +; Dimensions of the tube (Wksht): 151x47x31 ;mm; The time in standby mode: 200 ;h; The time in conversation mode: 18 ;h; Search tube: +; Dimensions base...