How do you filter spam messages?

Use SMS firewall (not all mobile phones have it) ... Go to the business hall to cancel Monternet service ... Just turn off SMS service ... First talk about what spam messages are, such as numbers (Dongguan area) 076988, 076933, 0769 1 1 and so on. Everyone should know the content of these news, which is nothing more than cheating money. I can't remember your name ","Call * * * 56737 to listen to the exciting voice of the young woman "and so on. As soon as you reply to the message, deduct the money immediately. 5 yuan-10 yuan, my poor colleague deducted more than 40 yuan after listening to the young woman's exciting voice for 8 minutes! I used the M-Zone in Dongguan. I called 1860. When the lady gets through, you tell her sternly that you are annoyed by spam messages and ask to block all spam messages except 1860. The lady told me politely that I couldn't stop them, so I didn't reply. I just deleted the spam messages myself. I said I didn't believe it, and then told her that I majored in electronic communication, and it was completely possible to block spam messages and telecommunications. Miss is a little panicked. Please remember that my tone at that time was very strict, otherwise it would be invalid. Then she said that she could block the SMS number received on my mobile phone. I refused to compromise and told her that it was necessary to block it all. Miss Li said it was beyond their ability to submit an application to the above. I said this is your business, not mine. If you don't provide me with this shielding service, hehe, wait for me to use other methods! At that time, I said that I had friends from newspapers and law firms. ) I hung up at that time and called me the next morning 1860, saying that it was technically impossible, but I still couldn't stop it. I am still tough and strict, telling them that technology is their business, not mine. I remember that lady said that I stood beside her three times, and I was even speechless. Haha, awesome! I hung up again and called again this afternoon, telling me that I could block all spam messages in Dongguan (that is, spam messages starting with 0769). There was nothing they could do elsewhere. I thought it was the only way, so I agreed. I asked the service girl, and it turned out that my complaint turned into a vicious one. It was troublesome that they didn't fix it, so it was repaired soon! Dig haha, no more spam messages bothering me, and now the whole world is quiet. . . . . . Please support me if you agree, put the post on it and let more people see it. Call tomorrow 1860! Exercise the rights of our consumers! ! ! My hands are sore. Brothers, if you don't want to be harassed, do as I do. Tell your harassed friends to go to hell with the damn spam messages.