And check it out....it is the Rom I am currently running on my phone.
The obvious things like heart rate monitor don't work so let's not be ridiculous.
But things like ultimate power saver, kids mode, etc. Work.
I would guess wifi calling does not work do to it being international. ..I don't use it so Idk.
I'm sure other roms from the i9505 forum work just as well if not all of them....I personally have only tried 2...and both worked like a charm...
Again....I don't use wifi calling or texting but I'm pretty sure it don't work.