FWIW, I ditched wifi calling in favor of bugging my provider (Verizon) about the lousy reception I get in the valley I live in. They ended up sending me a free device that attaches to my router and uses GPS to (magically) boost the signal to five bars most of the time. Even outside I can now make calls. See if your provider has such a device available. Oh, and guess who makes this thing? Yep, Samsung.