How to block unwanted calls? Many friends have received harassing calls. Especially in recent years, due to the flood of big data and other reasons, the leakage of phone numbers has become commonplace. Various sales calls and fraudulent calls have found harassment targets. I have received more than a dozen harassing calls from nowhere in one day, which is very annoying.
If Android users want to block harassing calls, they can rely on the functions of the mobile ROM itself or the App, but there will still be fish that slip through the net; Apple users will be more troublesome to block harassing calls. In principle, the effect of the iOS mobile phone protection App will not be the same as that of Android. So powerful. How to do it? Today, the author will share another method, which can effectively block all kinds of harassing calls without installing an app!
This is the way the operator officially launched, we can pay attention to the operator's launchAnti-harassment serviceThe WeChat public account is as follows:
China Mobile: Protection of China Mobile's high-frequency harassing calls
China Unicom: Smart Wo Services
China Telecom: Tianyi Anti-harassment
The services of the three companies are similar. Take China Mobile as an example.
After following the official account, follow the promptsBind mobile number. It can be seen that the mobile phone anti-harassment service mainly has the following functions.
Black and white list. Calls you don't want to answer can be blocked, and important calls can also be added to the whitelist to avoid missed calls.
Number segment interception. You can intercept numbers starting with fixed numbers, such as 400, 950, etc., and you can customize the number segment. It is worth noting that this function can also block calls from international and Hong Kong, Macao and Taiwan regions with one click. Many scam calls are now made from these places, and most people do not have the need for international long distance calls. , can greatly reduce the probability of receiving fraudulent calls, and it is strongly recommended to help the elders at home to open it.
Smart Intercept. Based on communication big data, tag and wilderness information, and callback verification results, dynamically generate a library of spam phone numbers. It can judge and block various high-frequency harassing calls in real time in the cloud. Requires the participation of the mobile terminal to save the power of the mobile phone.
In general, this function of the operator is still very practical. If you are bothered by harassing phone calls, or your cell phone shielding effect is not ideal, or you are worried that the elders at home will receive scam calls, you can try this method!
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