Snom 100 v1.9a User Manual page 33

Here the volume of the load speaker in the casing, in
the handset or both can be adjusted. Select one of the
three choices and you will see a display exactly the
same or similar to the one below.
The current ring tone is played back in the selected
volume and can be used to find the desired setting.
Key mapping:
,4,8 Reduces the volume in single steps.
,2,6 Increases the volume in single steps.
9 Reduces the volume in steps of 10.
3 Increases the volume in steps of 10.
#,7 Maximum Volume
*,1 Minimum Volume
F3 Sets the volume to the original value.
Enter Sets the volume and returns.
Cancel Returns without setting the volume.
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