The basic version of the device has six function keys which you can program to suit your needs. Each function key has a multi-colour LED that indicates its status, based on its assignment.

Run functions using the programmed function keys to the right or left of the screen:

Here: Press the button at the bottom, on the right, enables a function. The LED on the button shines green.

Press the top or bottom function key on the right of the screen: you jump up or down one screen or scroll through a list/menu quickly.

The number of programmable function keys on the COMfortel ® D-200 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.

The programmable function keys can each be defined three times (on three levels).