Why can't I intercept SMS after setting it on oppo mobile phone?

Because harassing text messages will constantly change numbers to send, the mobile phone does not recognize them. We can choose our interception method according to the actual situation by summarizing the settings of mobile phone-security-harassment interception. Under normal circumstances, we can choose the intelligent interception function of OPPO. As long as this function is turned on, the OPPO mobile phone system will automatically help us filter out spam messages and harassing calls.