Ring’s sensors operate on battery power, the keypad and base station come with AC adapters, and the Z-Wave range extender plugs directly into an AC outlet. All three of those components have battery backup, so the system will continue to operate in the event of a power outage. The base station connects to your home network via hardwired ethernet or Wi-Fi. A Ring Protect subscription activates an LTE module in the base station that will keep the system connected to the internet if your broadband connection goes down. You can even run the keypad on battery power full time if you choose, since most homes don’t have AC outlets right next to doors. An LED will tell you when the battery needs to be charged.
3 - If you do not answer the alert fast enough, you are locked out-- even though someone is standing at your front door. You cannot "turn on" the camera from your phone or tablet. If someone is there and you do not have an "ACCEPT" button on the screen, there is just no way to see or talk to them. This is obviously a software flaw. You should always be able to "wake" a camera remotely and talk to a person at your front door. Or maybe you just want to see the view outside your front door. You should be able to access the camera / microphone and enjoy your front yard.