If a monitored door or window is left open when you arm the system, Ring Alarm will warn you, but give you the opportunity to push an illuminated button on the keypad to bypass that sensor. You’ll get a similar warning and opportunity when using the app to arm the system. The sensor will remain bypassed until you disarm the system again. It’s a convenient feature: If you left the upstairs window open, for example, but are in too much of a rush to run up and close it, you can take a calculated risk and secure the rest of the home.
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.