Turning the Ringer Off
If you don’t want to hear your iPhone’s ringer at all, tap on the Settings app. In the Settings screen, tap on Sounds, then in the Ringer and Alerts section, tap-and-drag the volume slider all the way to the left. This turns your ring volume off. Your phone will still vibrate when a call comes in, but there won’t be an audible ring. If you want to turn that vibration off, as well, just above Ringtone, turn Vibrate off by tapping on its ON/OFF button. You can also turn the ringer off by moving the Ring/Silent switch (found on the top-left side of the iPhone) toward the back of the iPhone to Silent mode.
iTip: Stop the Ringing ...
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