How to set up an online business hall to block spam messages?

At present, China Telecom Tianyi mobile phone users can open the SMS filtering function. Users can set the filtering conditions of short messages according to the calling number, time period and keywords, and the short messages that meet the filtering conditions will be automatically filtered by the system. In this way, users can reject spam messages and avoid malicious harassment. After the user subscribes to the service, he can set it by logging in to the self-service network. If you need to open it, you can edit the short message "KTDXGL" on your mobile phone and send it to 1000 1 to open the short message filtering function. Click "official website" Customer Service 22 1 below for more service offers.