Unify OpenScape 4000/HiPath 4000 - Keys; Function Keys; Audio Keys

Getting to know your OpenStage phone 15
Keys
Function keys
Audio keys
Key Function when key is pressed
s
End (disconnect) call  page 31.
,
Redialing  page 33.
r
Button for fixed call forwarding (with red LED key)  page 35.
O
Open mailbox (with red LED key)  page 24.
N
Open telephone menu (with red LED key)  page 26.
Key Function when key is pressed
o
Activate/deactivate headset  page 42.
p
Activate/deactivate microphone (also for speakerphone mode)  page 31.
- Set volume lower and contrast brighter  page 102.
n
Turn loudspeaker on/off (with red LED key)  page 30.
+ Set volume louder and contrast darker  page 102.