Just for the record - you can contact the FTC (Federal Trade Commission) if any collections company keeps calling you when the person they want to reach does not live there. To aid in filing an FTC complaint, keep track of:

1) The name of the collections company
2) Their phone number
3) Their address, if possible
4) Dates & times of their calls
5) Name of person you spoke to, if possible

The FTC considers these nuisance calls, and they WILL put a stop to them if you can't get them to stop. Oh, if you get the collection company's address, FTC recommends sending them what is called a "cease and desist" letter, which is basically a letter saying that the person they're trying to reach isn't at that number, and to cease and desist calling. The FTC says the collections company is allowed ONE phone call after that to confirm receipt of your letter, and anytime they call over and beyond that is illegal, and the FTC could prosecute them for that.