Who called from 4075452521

I am sick and tired of these calls Most time they hang up and not say a word.  My husband has been the hospital starting the 3rd month. I do need a getaway,  can't guiet  go now can I?

No name left , just threatening legal action

Calls every other day.
Pick up the phone and hear nothing.
Say my name and hear three tones, followed by a disconnect.

I suspect they got my number because I booked a vacation with my timeshare, and now I think the timeshare sold my number. I've resorted to turning off my answering machine.