Samsung galaxy note 7 User Manual page 260

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
2. Tap Sounds
3. Tap Sounds and vibration > Do not disturb.
4. 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.
•
Device Settings
> Settings
.
.
248