Nokia Lumia 822
Before the upgrade to 8.1 I could press the top of the screen of the phone and a button would appear to silence or unsilence the phone. After the 8.1 upgrade the button appears to be gone. The only way to silence the ringer is to use the volume button to reduce everything to zero. Then I have to use the volume button to increase the sound to a point I can hear it.
Is there a way to get the silence button back?