I have call waiting turned on in the phone app settings. If I am currently on a call and receive another call I am only notified with a faint beeping noise. If I look at the screen when it's happening there is no indication I am receiving a call including when I pull down the notification tab. When I end the current call my phone starts ringing and then caller information then pops up. Is there anyway to fix this so it rings and shows who is calling with the stock phone app or is this something that can currently only be fixed by a third party app?