I had the same idea as you, I wanted the ring doorbell but after living with it for 2 days I returned it. Here is what I did and it still won't give you two talk sorry..
I installed a pir sensor on my porch, so any time their was motion it sent a alert to my phone. Also connected my Amazon echo to this, so when someone is on my porch, the echo says "someone is on your front porch" now it went and installed a hikvision 2342 camera out their so when I got the alert I could see who was out their. To me this option is a lot better then the ring. Now I have a doorbell and you don't even need to push the button to ring it . Also a nice security feature
I also use
blue Iris to send me alerts and you will get a lot of false alerts. Rain,snow ect
Ecolink Z-Wave PIR Motion Detector, Pet Immune (PIRZWAVE2-ECO)
Amazon.com : Ecolink Z-Wave PIR Motion Detector, Pet Immune (PIRZWAVE2-ECO) : Household Alarms And Detectors : Camera & Photo
Hikvision DS-2CD2342WD-I 4MP WDR EXIR Turret IP Network Camera US English Version 2.8mm
Amazon.com: Hikvision DS-2CD2342WD-I 4MP WDR EXIR Turret IP Network Camera US English Version 2.8mm: Camera & Photo