Zte SKINNY R286 User Manual page 17

HOW TO ADJUST RINGTONE VOLUME
As part of the ringtone functionality you have the ability to change the default
volume for any of the profiles

Select Menu > User profiles

Press left soft key Options > Customise the current profile

Scroll down to option 4 for Ring volume

Press left and right keys to set the volume

Press centre key to Save the change
HOW TO SET FLIGHT MODE
Flight mode is a feature that allows you to have your phone on but not have any
radio coverage.
Flight mode allows you to access other phone features such as listen to music or
play games that you may have loaded when you are on an aeroplane.
To activate this feature:

Select Menu > Settings > Phone Settings > (scroll down) Flight mode

Click the centre key to change to on or off