Wi-Fi Calling feature on Pixel - How do I tell if it is using it? I came across the Wi-Fi calling option in settings and thought I'd give it a try since my cellular phone connection with Verizon is very spotty at my house.

It is supposed to use whichever has the strongest signal between wi-fi or cellular.  Under the settings it says "Cellular Preferred" which I don't see how to change, although it has a setting for "Roaming preference" which I changed to Wi-Fi, but this doesn't change the "Cellular Preferred" label on the main settings screen.

I'm trying to determine if it is actually using the wi-fi connection when making a call.  There is no indication on the status bar that is any different whether it is turned on or not.  Theoretically it should be using the wi-fi since it is a much stronger signal.

To be clear, I'm talking about using the actual "phone", I'm not talking about wi-fi vs cellular data transfers, which is more obvious as to which you are using.

Is anyone aware of how to tell which one it is using?

Thanks
I have a Samsung, so behaviour might not be identical (although a quick google seems to suggest it is near enough). When my phone determines that cellular signal is not strong enough and switches to wifi-calling, an icon does appear in the status bar next to the wifi indicator. It looks like a phone icon with the wifi logo above it. The phone icon in the dialler also changes to this modified version.