The Do Not Disturb is a feature that kills the ringer on your smartphone and is helpful when you are under a terror attack in a confined space or a quiet
* Board/Staff Meeting
* Waiting Room
Unfortunately, some users will accidentally trigger this feature, thus missing important incoming calls and will also believe that their smartphone is dead. To see if the smartphone is actually needing repair or is not in plain sight, use Android Device Manager to let the smartphone ring for a few minutes as long as the battery is powered and have a WiFI or data connection.