When your phone starts ringing at an inappropriate time, the scramble to shut it off is embarrassing.
Many phones can be set to both vibrate and play a sound when you’re receiving a call.
If you’re in a meeting or a movie, though, the sound can disrupt those around you.
Those few seconds will (hopefully) be enough time to silence your phone before the disruption gets worse.
Create a custom ring tone with five seconds of quiet at the start.| Reddit
Photo byTorley.