 Second, if you haven't yet installed a ring doorbell, then you need to do it right away. This technology works just like an old time doorbell with some added features. You can view the front porch in the camera and you can also talk to them and they can talk to you. This verbal feedback will give you more clues as to whether they are legitimate. With the ring doorbell, you can also ask the delivery person to hold their company ID up to the camera to verify their identity.