Settings > Display > Settings Configuration Manager Display

Settings Configuration Manager Display
Proceed as follows:
Using the Configuration Manager (page Settings > Device > Display)
  Display off
 Display will be switched off in power save mode.
 Display will be dimmed in power save modede.
  Automatic brightness (COMfortel 3600 IP)
 The automatic brightness is disabled. A regulator for setting the display brightness manually pops up.
 Brightness (COMfortel 1400 IP and 2600 IP)
Move the regulator to the left or right to reduce or raise the display brightness.
LED settings
  Message LED
Flashing and continous on: Indicates new entries, or entries that have already been viewed.
Flashing only: Indicates new entries.
Off: LED is always switched off.
  Signalling of fax boxes
If you find the LED signals of the fax boxes disruptive or annoying, they can be switched off separately.
 New fax entries will be signalled.
  Display LED (only COMfortel 1400 IP and 3600 IP)
The different telephone states can be set (e. g. missed calls, new messages, etc.). Configure which telephone state is to be signalled or if the signalling shall be switched off completely.
Show alerting and calls: Indicates the status of the call.
Show alerting, calls and headset activation: Indicates the status of the call and the headset activation (only COMfortel 3600 IP).
Show alerting, calls and new messages: Indicates the status of the call and new messages.
Off: LED is always switched off.
  Registration status display for VoIP subscribers
 If not registered on the PBX, the speed dialling key signals unregistered VoIP subscribers in yellow.
 No signalling of the registration status.
Idle state and Power Saving Mode
The selected time indicates after how many seconds/minutes without action the telephone switches into the idle state. Then, the display no longer reacts on touch. If not automatically is selected, the telephone will not automatically be set into the idle state.
Configuration-dependent idle state
Configuration ID 
The telephone changes into the idle state if the PBX switches over into a specific configuration (e. g. night configuration).
Enabled Configuration switchover check box in the PBX
Enter the configuration ID of the configuration.
Note: To switch off the configuration-dependent idle state, delete the configuration ID in the Configuration ID entry filed and click OK.
Power save mode behaviour 
The selected time indicates after how many minutes in the idle state the power save mode will be switched on. The background lighting will then be dimmed or switched off completely and the LEDs are inactive (exception: message LED for missed calls).

COMfortel 1400 IP/2600 IP/3600 IP - Firmware V2.8 - Advanced Information V08 12/2020