On Hangouts for Android, new messages are notified by a sound or vibration or both. To completely disable hangouts notifications or for a specific ...Continue
To change the ringtone of your Samsung Galaxy S2 or other Samsung Galaxy devices do as follows:
1. Open "Setting" App
2. Go to "Sound"
3. Find "Device Ring tone" and Tap on it
4. Choose your favorite music or tone as the new Ringtone