I would say "any" and "anybody" in these sentences, because the alternative is that there are no words, or that nobody will call. "Any" gets used in negative sentence, where the alternative is nothing.
In contrast "some" is used in positive statements, where we know that the number is greater than zero, or where you are referring to something known.
e.g. "I am expecting somebody to call, if they call when I am out, please tell me their number"
e.g. "This is a very technical text and there will be some words you don't understand. In this case, use a dictionary"
However, the difference is subtle, and my explanation above might be an over-simplification.