You can tap out custom vibration sequences for incoming calls, voicemail notifications, text messages and more. Here’s how:
1. Go to Settings > Sounds
2. Choose Ringtone, Text Tone or any of the other selectable notification options
3. Choose Vibration up at the top, and then Create New Vibration under Custom
4. Tap out your custom vibration on the iPhone’s screen
5. Play it back or record a different one, then choose Save
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