Everyone prefers their own style of notification for call-alerts on their cellphone. Apart from the favorite songs, few users customize their vibration style. But, for iPhone users, there is an add-on option as they can also activate LED flash light as an alert.
Activate LED Light Alert
To set up, first click on Settings in the home-screen of your iPhone and tap the General icon. After it, click on Accessibility tab. Now, to enable the LED flash light alert notification on the iPhone, slide right or tap the slider to LED Flash for Alerts.
The icon will turn into a green slider after activation. Now, just wait for someone to call on your iPhone to witness a brilliant flash light alert.
The feature is available on iPhone 4 series or later versions, running on iOS 5 and newer versions.