From their email:
You can now see and talk to anyone at your home, on demand. Check in with your family and keep an eye on your home, anytime night or day.
IMAGE: RING APP
To use Live View, simply open the Ring app on your mobile device, select your Video Doorbell and then tap Live View.
IMAGE: Ring Video Doorbell Live View
Live View is currently available to select users with hardwired devices only. Your Live View stream may take a few seconds to load.
Read my post: Ring Video Doorbell Installation