See also: How to Enable or Disable Call Vibrations on Samsung Galaxy SIII
One more option you can customize in Phone app is turn on or off alerts while you're on call. Enabling this option will make your phone turn off alarm and message notification during call.
How to turn on or off alerts on call?
If you want to set up this option, then here are the steps:
- Go to Apps through Home screen.
- Tap Phone.
- Tap the Menu key.
- On pop up menu select Call settings.
- Depending on your current settings, tap Alert on call option to enable or disable this option. When the checkbox next to this option is ticked means this option is enabled.
- Tap Home button to return to the standby mode.
After you know how to enable or disable alerts on call settings, now you can set it according to your needs. When you want alarm and message notification go off while you're on call then turn on this option, while if not you can turn off this option. So, hope this helps :)