Well there are phones on t mobile that this does not happen with. It seems to be an issue with the 925. I suppose it has been fixed by now? just wondering. I was setting up my brothers new android phone, on t mobile, and I turned on wifi calling, and he still received text messages from people.
This is something "Microsoft" has to fix, along with Tmobile, both have to work together. I sworn there was an update to fix wifi calling coming, but if not yet might as well leave it off. It is a bummer, because there are places in my house where my phone acts up and everyone's does not. But outside i have full LTE coverage, the area is full LTE tmobile, makes no sense.
Yeah, t mobile is responsible for this fix, and at the same time, Microsoft should work with them to solve the problem. Fixed*^