Caller Id had no name. When I answered, nobody was there. I called back the number suspecting it had been spoofed and I was correct. I spoke with a man who said he had not called me. He said he did not understand how his phone could have called me when it was on charge. I told him it had been spoofed. He had never heard the word. I explained how it worked and told him to be prepared for other calls asking if he had called. He was very grateful and thanked me. I blocked the number so it would not ring my business phone again.