The Doorbell doesn't point down the walkway, but across the porch. Can this worked around?

Hello, this may sound stupid so thanks for taking time to read/answer. We purchased a system and it automatically came with the free doorbell camera. However, we don't have a doorbell. Will we have to install a doorbell to use the camera or can we use it on it's own? Again, sorry if this is a silly

Hello, this may sound stupid so thanks for taking time to read/answer. We purchased a system and it automatically came with the free doorbell camera. However, we don't have a doorbell. Will we have to install a doorbell to use the camera or can we use it on it's own? Again, sorry if this is a silly