Can UNSC smart ai just absorb any AI or was just Cortana doing that?

I think this was in first strike where Cortana absorbed a covenant AI and I think a moment in halo 4 did something similar to the infinity AI. Is this just something UNSC smart AIs can do or was just Cortana built with that functionality in mind?

I think the dumb AIs can’t do that but I could be wrong on that too