I am on Realme x7 Pro Android phone. When someone calls me the app rings through but there is no pop up or answer button. So no way to answer the call. If I call out it works just fine for the tablet on the receiving end. No way to send messages to the grandpad without needing to get a third party app. Very unnerving to have it work well on the grandpad side, but the kids can't answer a call and it just keeps ringinh until you kill the app or restart the phone