Unify OpenScape Desk Phone CP400 - Keys and controls

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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 function of left-hand display option or opens an additional menu. Used as a line
key in the team menu.
Key Function when key is pressed
:/É
Activate/deactivate the loudspeaker  page 59.
./Ê
Activate/deactivate the headset  page 60.
;/Æ
Activate/deactivate microphone (also for speakerphone mode)  page 67.
Key Function when key is pressed
@
Switch between current screen and main menu  page 25.
\
Switch to Presence and back  page 26.