I'm on AT&T, and I noticed that whenever I tried to make or receive a call on WiFi calling, it just never ends up being a stable, solid connection. It tends to break up now and then, or weird things happen like silence, then it sounds like the caller is speaking really fast for a moment.
It's not my ISP, either; this happens whether I'm at home or at work, or pretty much anywhere. As soon as I turn off WiFi and simply talk over cellular, the call is solid and stable with no noticeable problems, even with only one or two bars of signal.
So I finally just gave up and switched it off. I suppose I'll turn it on manually if I need it, like if I'm in a place with WiFi and no cellular coverage and need to make a call. But it's just been more trouble than it's worth.
I'm wondering if others have had a similar experience and came to the same conclusion. Also if there's a solution, but I suspect this is a problem on AT&T's side that I can't do much about.
EDIT: I'm on an iPhone 7 Plus, by the way. But I doubt my phone is problem, as this issue goes waaaaayy back to the beginnings of WiFi calling when I had an iPhone 6. Back then I was hopeful they were just bugs in the system because it was new, but it's still crap so...
