Hi BaKSo,

The N900 has two profile : standard and silent. You can customize the standard provile using the menu - settings - Profiles chosing :
- The ringtone ( chosing a ringtone and the volume )
- The sms sound ( chosing a ringtone and the volume )
- The chat sound ( chosing a ringtone and the volume )
- The e-mail sonud ( chosing a ringtone and the volume )
- The level of the system sond
- The key sound
- The screen sonud

and you can choose to activate or not the vibration.

Bye