Whether on the golf course, at work or in a move theater, there will come a time when you will need to quickly enable Silent Mode on your Samsung Galaxy S3. Putting the device in Silent Mode will silence the ringer on the device. There are 3 ways to accomplish this.
1. Press and hold the Power button until a menu appears. You will then be able to select Silent mode.
2. From any home screen, drag the notification bar down, then select Sound. Check Silent mode to enable it or uncheck it to disable it.
3. Not many people know about this third method. From the phone dialpad, you can press and hold the pound key (#) to enable Silent Mode.