How to deal with harassment from scam calls and text messages?

I believe that many friends have been troubled by fraudulent calls and text messages. Judging from the fraud police situation, many victims suffer property losses when they receive an overseas fraud call. The most common ones start with " " or "00", such as "0085" and "0087" , starting with "0026". This type of number has obvious characteristics, all with an international prefix starting with "00" (some mobile phones will translate "00" into " " in the number display). If you do not have a fixed overseas relationship or have purchased things on overseas shopping platforms and receive frequent calls from overseas, then almost all of these overseas calls are scam calls. Please be vigilant and answer them with caution! After scammers purchase a large amount of personal information through illegal channels, they use online virtual numbers and forged numbers to make fraudulent calls to domestic users overseas, and commit fraud such as "impersonating customer service, impersonating public prosecutors, and agency loans." Are we really helpless in the face of annoying scam calls and text messages?