Ok, so I found one post where someone states that the Wi-Fi calling provided by T-Mobile still works with their flashed ROM.

But, since I'm new to rooting an android, and this is really the main selling point for my carrier, I want to make sure before rooting.

All I want to do is root to remove the bloatware, and to create a backup image. But I do need to keep the Wi-Fi calling ability on my phone, because, without it, I have no service at my house (no other carrier even offers this much).

Can anyone tell me if just rooting, no custom ROM installation, and removing bloatware, while retaining wi-fi calling, is possible? And point me in the direction in regards to a "how"?

Thanks.