Find "Ring tone"
Press the Navigation key.
Scroll to Settings and press the Navigation key.
Scroll to Profiles and press the Navigation key.
Highlight the active profile and press Options.
Scroll to Edit and press the Navigation key.
Scroll to Volumes and press the Navigation key.
Scroll to Ring tone and press the Navigation key.
Adjust ring volume
Press Navigation key right or Navigation key left to adjust the required ring volume.
Save and exit
Press the Navigation key to save.
Press Disconnect to return to standby mode.