called, no one on the other line

Phone rang, I answered, they hung up.

I keep getting calls from this number and when I call back it rings once and then a busy signal.

I got a call from this number at 7:21pm and was on the phone, so I didn't pick it up. No message was left and when I tried to call it back, an operator message told me that the call could not be placed due to telephone systems problems. I DON'T want to be bothered by repeated phone calls from this number. I am a cancer patient, a survivor of domestic violence and a single mother of a small child.

Very Annoying, too many calls from them, too many different numbers, too many times a day.

Debt Collection from Ontario Canada using a Montana area code.

A man called my cell 6 times today saying he was Officer Jack Wilson and I was wanted for fraud. He kept rattling off my social security number, he also called my sister in law and friends of ours. I have no clue who he is.