For almost a yr. now, I will get these calls starting in the middle of the night. It rings and no answers. I try calling back and I get a busy signal or it rings forever and sometime sound like a fax beeping. These continue threw the night hrs. into the next day approx. 20 times before they stop. Once a month this happens. It states its a Verizon Land line in Cumberland Md. But Verizon will not help me. Go Figure!