Unify OpenScape Desk Phone IP 55G - Keys; Function Keys; Audio Controls; Mode Keys

Getting to know the OpenScape Desk Phone IP 55G 21
Keys
Function keys
Audio controls
Audio keys
Mode keys
Press these keys to switch to the required application. To select a tab within an application press
the relevant key repeatedly until the required tab is displayed.
The selected function is indicated by the icon on the display  Page 31.
Key Function when key is pressed (6)
Activate/deactivate call forwarding  Page 77
Start conference  Page 120
Transfer a call  Page 111
Hold active call  Page 101
Key Function when key is pressed (7)
Activate/deactivate the loudspeaker  Page 49
Activate/deactivate the headset  Page 50
Adjust the speaker volume
Adjust the speaker volume
Activate/deactivate microphone (also for speakerphone mode)  Page 66
Key Function when key is pressed (3)
Display telephony interface  Page 34. The LED lights red.
Display phonebooks  Page 37. The LED lights red.
Display call lists  Page 40. The LED lights red.
Display voicemails  Page 43. The LED lights red.
Display Program/Service menu/Applications menu  Page 44. The LED lights red.
Forward
Conference
Transfer
Hold
Speaker
Headset
Vol.+
Vol.-
Mute
Phone
Directory
Call Log
Messages
Services