I have gotten one call a day for the past 3 days from this wireless number. No message is left. The thing to do is, if you are up late, after a busimess is closed, call the number back and see if you get a message (like "if you do not want to receive calls from us, enter your phone number so we can remove you from our calling list." Believe it or not, if it's some sort of a charity, they usually provide you with an opt out. Same with places which are looking for people to particpate in a phone survey or a political call).
Person called an mumbled something about police.
Tried to talk to them and they would not answer.
They should try calling the real cops for assistance.
They called my house about 4 times within an hour. They said that they were a part of my local police department and asked for donations, I tried asking about it and they refused to answer me and kept insisting I donate. They knew my name and my address, I was very concerned and hung up. They continued to call, luckily after about an hour they stopped. I recommend that you dont even bother and block the caller.