Samsung Galaxy Tab A - System Sounds

Device Settings 225
Allow Exceptions
This option lets you customize which notifications are allowed while your device is in Do not disturb mode.
1. From home, tap Apps > Settings > Sound .
2. Tap Do not disturb.
3. Tap Allow exceptions, and then tap one of the following options:
 No exceptions: Allow no exceptions.
 Alarms only: Allow exceptions for alarms.
 Custom: Set your own exceptions.
System Sounds
Set various other system sound options.
1. From home, tap Apps > Settings > Sound .