
18
Getting to know the OpenScape Desk Phone CP400
Keys and controls
softkeys
Audio controls
Audio keys
Volume
Use the controls to adjust the properties of your phone, for example the volume.
Mode keys
You can switch to the relevant application using these keys.
Key
Function when key is pressed
_
Activates the function of the left display option or opens another menu. Used in the Team
menu as a line key.
Key
Function when key is pressed
:
/
É
Activate/deactivate the loudspeaker
.
/
Ê
Use headset
;
/
Æ
Activate/deactivate microphone (also for speakerphone mode)
Key
Function when key is pressed
@
\
Configure call forwarding