A number of years ago, I purchased the VTO/VTH combo package from @EMPIRETECANDY Andy as a cool toy.
This is a Villa Intercom station & display, NOT a doorbell unit: VTO 2202F-P (P=POE hardwired, not WiFi) and the VTH model 2421F-P (hardwired, not WiFi)
The VTO is what sits outside by the front...