Spam calls and annoying offers of banking services have become a real problem for owners of modern smartphones. This issue is especially acute for users of the ecosystem Xiaomi, where a standard telephone has wide functionality, but requires correct initial setup. Constant interruptions to work, meetings or relaxation due to beeps on the screen are annoying for any person.
Fortunately, the shell MIUI and new HyperOS provide powerful built-in call filtering tools that often go unnoticed by ordinary users. You don't have to install third-party apps or pay for operator services to regain silence. It is enough to correctly configure the system parameters hidden in the depths of the security menu.
In this article we will analyze in detail all the available methods: from simply activating the black list to creating complex rules for the Do Not Disturb mode. You will learn how to distinguish system settings from antivirus functions and what hidden phone features can save your nerves. The instructions are relevant for most current models, including the Redmi Note series and flagship Mi devices.
Using the built-in blocking function in the Phone application
The fastest way to stop receiving calls from unwanted callers is to use the standard functionality of the application Phone. The developers Xiaomi integrated the blocking module directly into the dialing interface, which allows you to manage the blocking list in just a couple of touches. This method is ideal if you need to block a specific harasser or a number that has already received spam.
To begin, open the standard calling application and go to the settings menu, which is usually hidden behind three dots or a gear icon in the corner of the screen. Find the section responsible for blocking and activate the switch that allows numbers to be blacklisted. After this, any call from the added number will be automatically rejected, and the subscriber will hear a busy signal.
However, manually adding each number individually is ineffective against massive spammer attacks. It is much wiser to use the function of blocking all unknown numbers. In the same settings menu, find the item Block unknown numbers and move the slider to the active position. The system will begin to reject any calls whose ID is not saved in your phone book.
☑️ Checking blocking settings
It is important to understand the difference between a complete block and being sent to a blacklist. When a number is included in the stop list, the call simply does not go through. If the unknown filter is activated, the phone may show a missed notification, but will not emit a sound signal. This allows you not to miss an important call from the courier if you first save his contact.
Setting the “Do Not Disturb” mode for complete silence
The "Do not disturb" (Do Not Disturb) mode is a more flexible tool than a simple blacklist. It allows you to create exceptions and set a schedule so that your phone is only silent at certain times of the day or under specific conditions. This solution is suitable for those who want to isolate themselves from the world while sleeping or working, but at the same time leave a communication channel for loved ones.
You can activate this mode through the notification curtain by holding the crescent icon, or through deep settings in the section Sound and vibration. Inside the mode menu you will find an option Allowed calls. By default, the value may be “All” or “From contacts”. To achieve maximum protection, select the “Selected Only” option or completely block incoming calls.
⚠️ Attention: By completely blocking calls in Do Not Disturb mode, you may miss emergency calls from emergency services or urgent work issues. Always check the list of exceptions before activating.
Particular attention should be paid to the retry function. If the same number calls you twice within three minutes, the system may skip the second call as an emergency call. If your goal is absolute silence, find the item Repeated calls and turn it off. Now even persistent spammers will not be able to reach you.
Set up Do Not Disturb mode automatically on a schedule, for example, from 23:00 to 07:00, so that the phone does not ring at night, but works as usual during the day.
Also in this section You can customize the behavior of notifications. You can allow visual cues to appear on the screen, but disable sound and vibration. This is a compromise option: you see that someone is calling, but the phone does not make a sound, allowing you to decide whether to interrupt the current activity to answer.
Spam filtering through the Security application
In the arsenal of smartphone owners Xiaomi there is a unique system application called Security. This is not just an antivirus, but a whole system management system, including a powerful antispam module. This is where the most subtle filtering settings are concentrated, which are often updated thanks to cloud databases.
Launch the application Security and scroll down the screen to the tool block. Find the icon Antispam and enter the menu. Here you will see a toggle for spam blocking and blacklist settings. By clicking on the gear icon in the corner, you will be taken to the advanced options, where you can select the source for updating the spam number database.
- 📞 Blocking hidden numbers: Weeds out calls where the caller ID is disabled by the caller.
- 🌏 Blocking by region: Allows you to block calls from certain countries or cities where spam often comes from.
- 🤖 Smart blocking: Uses a user database to identify numbers that are massively marked as advertising.
The region blocking function is especially useful if you often receive calls from scammers from other regions or countries. You can select specific area codes from which you do not need calls. For example, if you live in Moscow, but you constantly receive calls from numbers in the Krasnodar Territory, simply add this region to the blocked list.
How do cloud spam databases work?
The Security application periodically downloads updates to lists of numbers that users around the world mark as spam. This allows you to block new scammer numbers almost instantly, even before you personally encounter them.
Don't forget to regularly check the log of blocked calls inside the application Antispam. The history of all rejected calls and SMS is stored there. Sometimes useful notifications from banks or delivery services may appear there if their numbers have been mistakenly flagged by other users. You can always restore such a number by adding it to the white list.
Blocking unknown subscribers through SIM card settings
In addition to the shell software settings MIUI, there are functions that depend directly on your mobile operator and SIM card settings. Some operators offer paid anti-spam protection services, but basic blocking capabilities are often available for free through standard USSD commands or phone settings.
In your smartphone settings, go to SIM cards and mobile networks. Select the active SIM card and find the item Advanced settings. There may be an option here Call barring. Please note that this feature may require you to enter a call barring PIN code, which by default is often 0000 or 1234, but it is better to check with your operator.
| Blocking type | Description of action | Impact on balance |
|---|---|---|
| All outgoing | Banning any calls from your number | Free (service) |
| Incoming in roaming | Blocking calls abroad | Depends on the tariff |
| All incoming | Complete call blocking | Free (service) |
| Anonymous calls | Weeding out numbers without an identifier | Depends on the operator |
Activating the blocking of all incoming calls through the SIM card settings is a radical measure. The phone will appear switched off to the caller, although the device itself will work normally. Use this method only as a last resort when other filtering methods do not help cope with the barrage of calls.
⚠️ Attention: Settings for barring calls via SIM card may differ for different telecom operators (MTS, Beeline, Megafon, Tele2). If the menu item is inactive or displays an error, contact your operator's personal account.
It is also worth remembering that when you enable hard blocking at the network level, you may not receive confirmation codes from banks and services. This is critical if you are expecting important transactions. Always check if the channel for short service numbers is blocked before applying global bans.
Third-party applications for advanced protection
If the built-in tools Xiaomi are not enough for you, the store Google Play offers many specialized caller IDs and blockers. Applications like Getcontact, NumBuster or Kaspersky Who Calls have huge databases that often surpass standard MIUI lists in relevance.
The main advantage of such apps is the social principle of database formation. If a thousand users have marked a number as “Collectors”, the application will block it from you automatically, even if this number is not in your personal contacts. Installation of such software requires permission to access calls and contacts, which must be taken into account from a privacy point of view.
- 🛡️ Caller ID: Shows the name of the caller or organization even before you pick up the phone.
- 🚫 Automatic reset: Instantly ends calls from flagged spammers without your participation.
- 📊 Call statistics: Shows who and how often tried to call you recently.
When using third-party blockers on Android it is important to do it correctly configure permissions. Go to the phone settings, find the section Applications, select the installed blocker and make sure that it has the rights to display on top of other windows and access the phone. Without these rights, the application will not be able to intercept an incoming call and block it.
However, you should be careful with aggressive settings. Sometimes such applications can block calls from taxis or couriers if their numbers have recently been used by scammers. It is recommended to periodically review the blocking log of a third-party application and add important services to exceptions (white list).
Frequently asked questions and solutions to blocking problems
Even with proper configuration, users may encounter nuances in the operation of the blocking system on Android. Below are answers to the most popular questions that will help you troubleshoot problems and make your protection as effective as possible. Remember that the interface may differ slightly depending on the firmware version.
Why does the phone still ring even though the number is on the blacklist?
Often the problem lies in the fact that the number is written in contacts with different formats (for example, +7 and 8). The system may not match them. Also check if blacklist synchronization with the cloud is disabled. Make sure that the application Phone has all the necessary permissions in the system settings.
How to block calls from unknown numbers, but receive calls from colleagues?
Use mode Do Not Disturb c "Allow calls only from contacts" setting. Save the numbers of all your colleagues in your phone book. Then everyone who is not in the contact list (including spam) will be blocked, and work calls will go through unhindered.
Is it possible to block an entire range of numbers?
Standard means Xiaomi block an entire range (mask) numbers are not allowed, only specific values. For mass blocking by city codes, use the function in the application Security -> Antispam -> Settings -> Blocking by region.
What to do if the blocking function is inactive (gray)?
This may mean that device administrator rights have been intercepted by another application, or the application Phone rights have been revoked. Try restarting your smartphone. If this does not help, check for system updates in the menu About phone.
Will the subscriber know that he is blocked?
The subscriber will not receive direct notification of blocking. When calling, he will hear a long beep, which then drops, or he will immediately hear a busy signal, depending on the type of lock and the telecom operator. A regular failed call will be displayed in the call log.
The integrated use of MIUI's built-in antispam and Do Not Disturb mode provides 95% protection against unwanted calls without the need to install additional software.
Setting up anti-spam protection is not a one-time action, but a process that requires periodic checking. The databases of scammer numbers are constantly updated, and new schemes for bypassing blocking are emerging. Regularly look into your settings Xiaomi, update the antispam database and do not be afraid to experiment with combinations of modes to achieve ideal silence.