Snom 220 - Manual (Page 21)

Basic Functions
21
Denying/Blocking a Call
When the snom 220 signals an incoming call, you have the option to
deny the call with .
If you decide to press
, the caller will be placed on the deny list and
will always be denied automatically. If is not displayed, it is
switched off in the settings. You can enable it again via the webinterface
(“Deny All” feature).
Adjusting the Volume
While making a call, you can use the * and the - keys to the
right of the display to increase or lower the volume.
Key mapping:
Reduces the volume in steps.
Increases the volume in steps.
ENTER
Sets the volume and returns.
CANCEL
Returns without setting the volume.
Mute / Unmute
To mute the microphone during a call, press the softkey “Mute” or
.
Press the softkey “Unmute” or to enable the microphone again.