Quiet mode turns off all sounds except alarm, music, video and games. Only calls from your allowed contacts will ring.
From the Home screen, tap Apps > Settings > Sound
Tap Quiet mode > Turn Quiet mode on now to enable.
Tap Schedule settings, then tap the Schedule settings switch to enable adjustment of Time and Days. Quiet mode will activate automatically during the set time. Tap Back key to return to main screen.
Tap Allowed calls. From here you can allow a second call from the same person within 3 minutes to ring, set allowed contact numbers to ring, and set automatic reply’s all while in Quiet mode.
Note: Allowed calls and auto reply settings grayed out unless Block incoming calls is checked .