See also: How to Set Different Ringtone for Different Contact on Samsung Galaxy S3
Once you've assign ringtone, then whenever the contact calls you then the phone will ring the tone you already set before, of course your phone should not be in silent mode and you have adjust the volume to allow you hear the ringtone.
How to change sound volume?
You can adjust ringtone and other notification volume by following the steps as listed below:
- Go to Settings.
- Tap Sound.
- Tap Volume.
- Now you'll see some option available here, such as music, video, games and other media, ringtone, notification, etc, with the slider next to each of the option
- Slide the slider on each option to the right to increase the volume or slide it to the left to decrease the volume.
- Tap OK button to save the changes.
Well, this is the step to change ringtone and other notification volume on your phone. Also by knowing this step, now you can set the sound volume according to your need. So, hope this helps :)