The reporter learned from the Ministry of Industry and Information Technology that since the "harassment call refusal" service was launched in 2019, as of June 2023, the scale of service users has exceeded 6 million, and the cumulative number of harassment phone protection has exceeded 5.4 billion times according to the user's wishes.

How do I activate this service? The reporter understands that users of China Telecom, China Mobile and China Unicom can open the service for free. China Telecom users send "KTFSR" to 10001, or dial 10000 to manually activate the service, or they can also follow the "Tianyi Anti-Harassment" WeChat public account to open; China Mobile users can send SMS "KTFSR" to 10086 or directly dial 10086 to activate the manual service, and the WeChat public account of "China Mobile High-frequency Harassment Phone Protection" can also be opened; China Unicom users call 10010 to transfer manual service to activate, or follow the "Unicom Assistant" WeChat public account to open.

After the reporter sent "KTFSR" to 10086, he immediately received a reply SMS, and after sending SMS again for second confirmation according to the prompt, he successfully opened China Mobile's anti-harassment phone service for free.

On the WeChat official account of "China Mobile High-frequency Harassment Phone Protection", users can select precise number segments to block, such as blocking numbers starting with 400, 950, 951, etc., and blocking international and Hong Kong, Macao and Taiwan number segments. If there are personalized needs, citizens can also customize the number segments that need to be blocked.

How effective is the anti-harassment phone service? Ms. Zhang, who recently opened the anti-harassment phone function of China Mobile, said that the phone has been much cleaner these days. The blocking page she showed showed that the system successfully blocked 3 harassing calls in one day. The reason for the interception is also clearly marked by the system: two are blocked due to abnormal high frequency, and the other is blocked due to the blacklist.

"My takeout and delivery calls were intercepted by mistake, what should I do?" Some citizens are a little worried. The reporter learned that after intercepting the harassing call, the system will send an SMS reminder, and users can also log in to the relevant WeChat public account to view the interception situation.

After nearly 5 years of continuous iterative upgrading, the "Harassment Call Refusal" service has enriched functions such as intelligent answering, call verification, and interception notification reminders. Citizens can register the categories they do not want to answer according to their personal wishes, such as loan management, insurance promotion, stock and securities, real estate agencies, education and training, etc. For calls made by personal mobile phones or home fixed lines, citizens can open the personal refusal list function and register the numbers they do not want to answer.

Beijing Daily client intern reporter Xia Hua