Comfortable ISDN phone with voicemail and CTI Funktion.Trendige, steeply dipping model form, 3-stage height-adjustable wall mountable phone registers for 100 station alphanumeric display with backlight (2 lines) 6 individually configurable multiple subscriber numbers (MSN) network SMS for messages up to 160 characters with input - Ausgangsspeicher14 and programmable multi-function keys for storing numbers, operators (call by call) and frequently used functions (eg SMS inbox storage or selection of the outgoing MSN on keypress) and Uhrzeit-/Wochentagsteuerung Separate button for activation / deactivation of the preconfigured call forwarding schedule management for 30 appointments redial list of the last 20 number dialed Fully automatic redial a busy number TeilnehmerR button for easy switching in ISDN Telefonanlagen100 Tonrufvarianten (assignment individually possible for each MSN) Tonrufautomatik (ringer volume automatically increases when not lifted) call list for 20 incoming calls with documentation of date, time and MSNRückrufliste with 6 entries (Automatic Callback Busy, CCBS) Direct, calm before the phone call filter, VIP call signaling (signaling despite calm before the phone) volume, handsfree billing as a total for the phone separately for each MSN, per Register entry and for the ISDN connection Various choice and control locks (option settings, numeric keypad) emergency power supply in case of power failure support for all common ISDN performance features Power supply via ISDN bus (no additional power supply) system software update possible via ISDN