Call Flash Alert

Description

Alert you with flashing light when you receive a call, simple, user friendly, colorful and elegant, but most important unlike many other similar App, it´s unlikely to be killed by the android new Operating-Systems, to stop to crash or to misbehave because it uses a foreground service, visible to the user through notification (notification disappears automatically when you push the Start-Stop Button) with full control to be stopped completely when the user like. If it on, it run itself again on reboot, means it works also if the App is closed.
Choose between Flashing or onSound-mode with the Mode-Switch (1).
-Flashing mode: Strobe mode (Light goes on and off periodically).
-onSound mode: Light goes on above a specific amplitude value and off below it.