Snom Technology M18 KLE SIP DECT 4 Line Deskset Remote Control Deadening Material Component Deadening Material Nickel plated locking adjustable knob 000 entries Call history up to 200 entries XML LDAP remote phonebook Do Not Disturb (DND) 3 way local conference N way network conference External Internal call transfer between DECT phones Intercom between DECT phones1 Mute Redial Call transfer: blind attended Call hold Call forwarding: per line basis (busy always no answer) Call timer (call duration) Caller ID Phonebook matching (incoming and outgoing calls) Multi language support Keypad lock 36 hours 7 hours standby time talk time Included AC Adapter Deskset battery: 2 5 inch 102 x 66 pixels (w x h) mono LCD LCD backlighting (blue white) Message waiting LED 4 programmable LED backlit line keys 17 dedicated feature keys 4 way navigational pad 32 speed dial keys (2 pages x 16) HD voice for receiver and speakerphone Full duplex speakerphone HAC receiver 2