A
Yes on WIFI calling people can't hear it ring so they continue to call you back
Couple of big problems with wifi calling here. Callers don't hear ringing on their phone, for one thing. The other thing is that calls don't go to voicemail unless I reject them multiple times. If a call isn't answered, the call appears to not be forwarded to voicemail. So it rings 3 times on my phone, and instead of going to voicemail it rings 3 more times on my phone. Then does that again a couple more times, and finally just stops on my end. The caller hears no rings during all this, and finally gets a busy signal.
Really borked. If this is how T-Mobile does wifi calling, I'm not going to stay with them very long. I need wifi calling, no alternatives.
Had that issue when on the February security patch (T-Mobile) . The March security patch seems to have resolved that issue