You can pay $20 to Google to own a number. When we disconnected our landline, I replaced it with a Google Voice number connected to our wireless phone setup. It gets very little use now but is nice for automated calls from the school telling us a kid was late, schools are closed because of snow, etc.

You paid Google? Why'd you pay Google $20? That's $20 more than my number cost me. I mean, other than all the ads, engagement, and PII.

I signed up for my number in 2015, with a landline, because I had just purchased an Android tablet, with no SIM slot or mobile plan, so I decided that teh Goog was the best bet for VoIP for me.

You've got to guard your conversations on Voice, and don't mention forbidden keywords. Voice will instantly disconnect the call if it detects wrongthink.

Any articles or sources for Voice disconnecting calls? I've never experienced this

I now "own" that number and can port it out of Google if I wanted to. That was important to me in case they ever decide to shut down Google Voice.

I don't see how Google makes money on Google Voice, which makes wary of them shutting it down some day.