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I'd like my doorbell camera to have a cat detector and a meow detector so when my cats meow at the door, it rings the doorbell. My cats have gps collars and distinctive fur and meows, so it could double check so other cats can't spam me. That way each cat could have its own distinctive ring (like their distinctive meow, amplified).

Please, It's much safer to keep them indoors where they can't kill songbirds, crap on the neighbours kids lawn or get run over.

noticed how spam has that utility for many elderly (which further incentivizes the abuse)

Or an even worse idea: What if ads started ringing your doorbell suddenly?