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 Caller ID black list Intercom (internal link) Conference-link Loud link (speakerphone) Night mode mode "radio-nanny" ; Supported handsets (base): 6 ;pc; Phonebook: 70 ;rooms; Polyphonic ringtones: +; Ringtones: 20 ;pc; Memory included: 50 ;rooms; Alarm clock: +; The display on the handset: color; Display backlight: +; The backlighting: +; The time in standby mode: 230 ;h; The time in conversation mode: 11 ;h; Search tube: +; ...