I use a Pixel 3 (so no Wifi calling sadly) and the phone signal I receive is of late particularly bad. I can usually hear the other person, but sometimes my voice is completely inaudible. This happens mainly in my house.
Things appear slightly better with bluetooth turned off, but that’s not always the case.
I live in south-east London, and my partner who is on Three doesn’t have any of these problems.
Please help.