Basic Knowledge > Device Overview > Display

Caution: Inappropriate cleaning and operation can damage or destroy the display.
Keep the display clean. To do this, use a soft, dry cloth.
To operate the telephone, use your fingers or fingernails. Under no circumstance use ball-point pens, pencils, or other pointed objects on the display.
Never apply force or excessive pressure when touching the display.
Important: Electrostatic discharge or moisture may cause the display to malfunction.
Avoid contact with other electrical equipment.
Clean the display only with a soft, dry cloth.
Note: The display reacts most effectively to fingertip control.
The following is a list of actions available on the display:
Select, open, switch on/off
Tap the corresponding position on the display briefly with your fingertip (e. g. symbol, list entry).
Fast scrolling in lists
Tap the symbol or and keep it pressed.

COMfortel 1400 - Firmware V2.2 - COMfortel Set V3.16 - Advanced Information V07 02/2019