Tmobile topic

Ok guys I'm on a vs980 and am trying to find a rom that is tmobile compliant and has unlimited tethering. I would also like it to be I guess a tmobile rom on my vs980 so I could use wifi calling and the such. If anyone has come across a working tmobile rom on the vs980 and could direct me to that page I would be very humbled. I have found a few roms but none that are specifically tmobile.