In addition, I am not sure if I properly understood the functionality, but I assume that once you flip the phone, even if you have not silenced it, the mobile should only display glyph notifications for those configured as Essential, and nothing else (like in silent mode). So, there should be no vibration and no sounds. However, for me, it also keeps vibrating or emitting sounds after flipping, even after the “flip to glyph activated” lights are shown even though this does not happen consistently.