The Doorbell Camera does not have 2-way audio however, it takes photos and stitched those together which creates a GIF-like capture or a moving photo!
Step 1. Tap on the "photo" under the name of your Doorbell Camera.
What you see in here would be the last motion detected by your device.
Step 2. No 2-way audio neither a livestream but will show the latest photo stitch captured.
Step 3. You can tap on "Activities" to check the latest motions detected.
Step 4. Tap on "Photos in Cloud" to open all photo stitches captured by your device and stored in the Cloud.