Beijing, November 1. A man received a 110 anti-fraud call saying he spoke to the harassing phone for 3 minutes and asked if he had been scammed. Afterwards, the man, Mr. Zhang, inquired into the records and found that it was his little classmate who answered the phone and chatted with the other party for more than three minutes. Mr. Zhang, the party, said that it may have been detected that the other party's phone had been marked as advertising and sales.