Verizon always touts how "great their network is". Unfortunately, for me, in my current and also my last home I have never had acceptable coverage - literally decades without being able to use my Verizon cellphone(s) reliably inside my house. I am not rural, but I am in suburban California. Verizon sold me a Network Extender which was okay, as long as I was close enough to it in the house. It would not cover my entire house - so still lots of missed calls. When I heard the Pixel had Wifi calling, I thought that my problems would finally be solved, as I have great Wifi throughout my house. And Wifi calling does work great (call quality and consistency) - when it is enabled. As I posted, it just randomly turns itself off for no apparent reason. I will open up a case with Verizon support, although I am sure they will point the finger back to Google. I read the Mod above is on T-Mobile, and it is working fine, so I'm sure that I am in for a bit of frustration with support for this issue.
I totally agree with you for the most part. Funny thing is most of my friends using Motorola phones and iPhones on Verizon can make calls without any issues or without wi-fi in my place. The pixel is the only phone I have owned in which it can't reliably. And I have gone through 3 replacements all with the same results. Like you, Wi-Fi calling works great in my place, nice clear calls other person has no issues hearing me etc, but it shuts itself off after awhile too before it reconnects