Justifier

Wait you guys upgrade?

HomeAssistant has a calendar built in

Can likely rig it up to notify of events under whatever parameters you want via push notifications

I have had a bad experience with HA + reolink

First one, audio stopped after a winter storm, only static playing constantly

You can set them up with 2 way audio with HA, but it’s an endeavor, not a one click it works thing

I highly recommend you look up ubiquity, get a ubiquity protect router and bite the bullet cost wise because they work flawlessly

Or better, just get home cameras and keep a dumb doorbell