These are all a telemarketer for charities (Plano Lions for one). Here is what they do. The robo system calls, then hangs up! If you answer then your number is flagged in their computer as a callback. Then they call, and call and call. They call at 9:01 in the morning, they call at 8:59pm. These computers are programmed to call at many different hours to see when you answer. Then they program them to call during those "answered" hours.
I hate these frigging things and I'm a programmer (I write computer programs that run payroll).
They get away with it because charities are exempt!
Called and did not say anything but just held the phone and when phone
was free from being busy. Called back and they hung up the phone without saying anything again.
I keep getting calls from this number and from other numbers with the same area code and prefix, only the last four digits change (1-972-253-2904, 1-972-253-4901, 1-972-253-6501,1-972-253-6801, 1-972-253-6900 are just a few of these numbers). They have been calling my house at least once a day for the past week. There is no caller ID and they never speak when I answer the phone. I think it must be an automatic dialer where someone gets paid based on the number of calls they make. It must not matter to them if they make a connection or not. Is there anyway to get these calls to stop?