Profiles
Your phone has various setting groups called profiles,
which you can customise with ringing tones for different
events and environments.
Select
Menu
>
Settings
>
Profiles
, the desired profile,
and from the following options:
Activate — to activate the selected profile
Personalise — to change the profile settings
Timed — to set the profile to be active for a certain time.
When the time set for the profile expires, the previous
profile that was not timed becomes active.