Apple iPhone 4S

1. Find "Do Not Disturb"

Press Settings.

1. Find "Do Not Disturb"

Press Do Not Disturb.

2. Turn Do Not Disturb on or off

Press the indicator next to "Manual" to turn the function on or off.

3. Select period for Do Not Disturb

Press Scheduled and follow the instructions on the screen to select the required period for Do Not Disturb.

4. Select contacts

Press Allow Calls From.

4. Select contacts

Press the required setting to select which contacts can call you even though Do Not Disturb is turned on.

4. Select contacts

Press Do Not Disturb.

5. Turn Repeated Calls on or off

Press the indicator next to "Repeated Calls" to turn the function on or off.

6. Select silent mode settings

Press Always if you want to set your phone to silent mode permanently.

6. Select silent mode settings

Press Only while iPhone is locked if you want to set your phone to silent mode only when the screen lock is turned on.

7. Return to the home screen

Press the Home key to return to the home screen.