I can only suspect the number was from a health insurance professional or some other caller. I have been receiving a lot of these types of calls recently, when you return the call, you're told .."this number is currently unavailable.."

This is yet another solar system marketing call from "Power Solutions" in Sydney Olympic Park. I have doubts that this is a legitimate representation of that business. My mobile is on the Do Not Call Registry and yet I get a call from them every two days, without fail. Each time I ask to be put on THEIR do not call list. Obviously, this does not happen.