[Q] Possible to port other carrier roms

I am curious to know if it would be possible to port over T-Mobiles rom to my wife's S4. It is rooted and has safestrap installed. It is running 4.4.2 KitKat. We recently switched carriers and I was wondering if I was able to port T-Mobiles rom, it might help with signal reception? Or am I totally wrong? I would love to get the wifi calling and texting that is built in to their roms, along with a few other options they incorporate for the S4.



Thanks for any help!

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