Lots of negativity about TOS Uhura being "just" a radio operator. I would think the perception of what she actually did would have changed since the boom in the communications field. I think of her now as more of the communication systems manager. If the internet is tough to manage now, can you imagine what it could be like a few centuries from now?
Having worked in the computer field, the systems manager and/or internet manager is not a cakey job. It does require lots of knowledge, intelligence, creativity and resourcefulness. If TOS Uhura wasn't a "linguist" it doesn't mean her job was less important than the NuUhura IMO. Should have gone this route in NuTrek. Uhura should have been more the computer communications expert whereas Spock would have been the number cruncher and hardware computer expert.
ST09, in all its ridiculousness, had Chekov as the guy who gets on the comm system and announces stuff, taking away TOS Uhura's only actual role :-/
Did she ever do this in TOS? I dont recall. Seems mostly she flipped the switch that allowed Kirk to make announcements. My recollection is that she operated and repaired the comm systems for the ship. Which is why she wears red and is probably a qualified and highly skilled communications engineer or technician.