8 Configuration
8.1 Sound and Alerts
8.1.1 Ring volume
In Sounds and alarms (1)/Ring volume (1) press Accept 
and adjust the volume of the ring for the incoming calls or disable by using
the menu keys.
The volume range goes from the minimum to the maximum with 6 intermediate steps.
Press Accept again and you will hear a tone or melody established by default for your incoming calls with the volume fixed the last time. Press the navigate by menu keys to adjust the volume to the desired level between the defined maximum and minimum values. Confirm the selection by pressing Accept .