Function Keys
Touch function keys
The configured touch function keys are displayed on the top right of the display.
Press these keys to perform configured functions.
Use the up/down arrow keys or gesture control to scroll through the list, which contains more than 5 configured touch function keys.
You can configure more than 20 function keys.
You will find more information on using the telephone to configure touch function keys in the Function keys section, and using the Configuration Manager in the Edit function keys section.COMfortel® D-XT20 key extension module
The number of programmable function keys on the COMfortel ® D-400 can be extended by adding up to three COMfortel ® D-XT20 key extension modules (not included in the scope of delivery). Modules are attached to the right-hand side of the phone. When the maximum number of modules has been installed, 198 freely programmable function keys are available.
Selecting a key level on the key extension module
Change between key levels by pressing the control rocker.
You can see the current key level on the horizontal scroll bar at the top and bottom edge of the display.
The display content changes according to the selected key level.