you’re able to get it now, even without Lollipop.
TheWonderHowTo videoabove shows you how to set it up.
Download the APK for free from XDA below to check it out.
L-Call| Google Play viaXDA Developers Forum
Get Lollipop's Incoming Call Banner On KitKat and Earlier
Android: Lollipop's new incoming call banner slides in from the top of the screen when you get a call, instead of kicking the current app to the backg
