Want to intercept spam messages, what do you recommend?

SMS filtering is to provide users with filtering means in the case of spam or malicious SMS harassment. After subscribing to this service, users can set the filtering conditions of short messages by number, time period and keywords, and the short messages that meet the filtering conditions will be automatically filtered out by the system. In this way, users can reject spam messages and avoid malicious harassment. It is suitable for mobile users of China Telecom, and can be handled through Huan go website, handheld business hall, SMS mode and business hall. Write "KTDXGL" on the mobile phone and send it to "1000 1" to open it, and the application will take effect immediately after completion; Cancel, next month 1 is invalid. 1. Self-service website mode: After the user subscribes to the service, he logs in to the self-service website to set the personality of related sub-services. Set according to the operation help instructions on the website. 2. SMS setting mode: the user sends the configuration instruction SMS to 10659 190 for corresponding personalized setting. For more service benefits, click on "official website" customer service 220 below to answer your questions.