Hi, welcome to the Calendar Add-on: Ringer Volume testing family

"Have you ever forgotten to mute the ringer and got into a situation when everyone starts wondering whose phone is making such a noise? Worse yet, have you ever forgotten to un-mute the ringer and blamed yourself for missing calls that needed your urgent attention? This app can help." Here's its link on Google Play: https://play.google.com/store/apps/details?id=com.fourmattered.calendarringervolume