Every smartphone owner has situations where it is necessary to limit calls completely or selectively. Whether it is intrusive spam, communicating with collectors or simply wanting to spend time in silence without distractions, modern Xiaomi smartphones offer a wide range of tools to solve these problems. The built-in features of the MIUI shell and HyperOS allow you to flexibly configure filters without having to install additional software, which makes the process of managing contacts as convenient as possible.
In this article, we will take a look at all the methods available, from simple locking specific numbers to completely separating your device from the network, how to set up a blacklist, use Do Not Disturb, and even redirect calls to another number, and understanding these mechanisms will help you take full control of your digital communication and protect your personal space from unwanted intrusion.
It's important to note that some methods are temporary, while others allow you to create a permanent barrier for certain subscribers. We'll look at the nuances of each method so that you can choose the best option for your situation.
Use of the built-in blacklist in the Phone app
The most common and effective way to cut off unwanted calls is to blacklist numbers, which Xiaomi and Redmi have built directly into the standard Phone app, which is based on Google’s engine or its own interface. MIUI This allows you to block calls and SMS-messages from specific subscribers or entire groups of numbers without the need to download third-party programs.
To activate this feature, you need to open the Phone app and go to the settings menu, which is usually hidden under a three-dot or gear button. Here you will find the Lock section, where you can manually enter a number or select it from your call history.
- 📞 Open the Phone app and click on the three dots in the upper right corner of the screen.
- 🛡️ Select “Settings” and go to “Blocking” section».
- ➕ Click "Add" and enter the number manually or select from the contacts.
- ⚙️ Set up rules: block only calls, only SMS or.
☑️ Setting up a blacklist
Special attention should be paid to the hidden number and international call blocking feature, which is often available in advanced settings, which is critical for those who are faced with massive spam from automatic systems, activating these settings creates a powerful filter that only lets those who are really important through.
Do Not Disturb Mode for Temporary Silence
When you want to temporarily limit incoming calls, but not block them forever, Do Not Disturb mode is ideal. Unlike a blacklist, this mode does not reject calls aggressively, but simply drowns out the notification sound, allowing missed calls to appear in the log, which is the optimal solution for meetings, movies or night time, when you want to see who called, but do not want to hear the call.
You can set this mode through the control center (curtain) or in the system audio settings. MIUI allows you to create schedules so that the phone automatically goes to quiet mode at a given time. For example, you can set automatic activation from 23:00 to 07:00 so that nothing interferes with your sleep.
⚠️ Note: In Do Not Disturb mode, calls from selected contacts may pass if you add them to the exclusion list in advance.
And it also has a useful feature called "Repeat Calls," which is that if the same number rings a second time in three minutes, the phone will miss that call, deeming it urgent, and it's a smart filtering system that balances silence and accessibility.
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Use geolocation to activate Do Not Disturb mode.Tune your phone so that it turns on silent mode automatically when you come to the office or cinema.
Full lock through flight mode
The radical but most reliable way to prevent any incoming calls is to activate flight mode. When you turn on this feature, the smartphone radio module completely shuts down, breaking the connection to the cellular network. To a subscriber trying to reach you, your phone will look like it is turned off or out of range of the network.
This method is often used in airplanes, hospitals or places where absolute silence and no radiation are required, and it is important to understand that in this state you will also not be able to receive SMS and use mobile Internet, although Wi-Fi and Bluetooth can be turned on separately after the flight mode is activated.
You can activate the mode quickly through the notification curtain swipe down. In the system settings, you can also set the automatic activation of this mode on a schedule, which turns your smartphone into a regular multimedia gadget for a certain time.
| Method of blocking | Availability for the caller | Impact on the Internet | Difficulty setting up |
|---|---|---|---|
| Blacklist | Hooks, then dumps. | It doesn't. | Low. |
| Don't disturb. | Gudki, the bell's on. | It doesn't. | Low. |
| Flight mode | "Not available" or reset | Mobile's offline | Minimum |
| Redirection | Redirection | It doesn't. | Medium |
Configure Unconditional Call Redirection
Another professional method of managing incoming calls is forwarding, and you can set up your Xiaomi so that all incoming calls are automatically redirected to another number, voicemail, or your carrier’s “respondent” service, in which case your phone may not even ring, and the call will immediately go to the specified destination.
The management of the redirection is carried out through USSD-The standard command for enabling unconditional forwarding is *21* number phone#. Once this combination is dialed, all calls will go to the specified number. To disable the function, the #21 command is used#.
Codes for managing forwarding
Using forwarding is especially useful when you are in a bad reception area, but you want calls not to get lost, but to be redirected to a colleague or home phone.
Blocking Unknown and Hidden Numbers
Calls from unknown numbers are a special category of attention. Spambots and telemarketers often use number masking technologies or call from different SIM cards. The MIUI security settings have an option to block all calls from hidden numbers or from subscribers not stored in your phone book.
To activate this feature, go to the Security app settings (green zipper icon) and look for the Antispam section, where you can turn on the Block Hidden Numbers filter, which will help to significantly reduce the noise level, since legal organizations and individuals rarely hide their ID.
- 🔍 Open the Security app on the home screen.
- 🚫 Select the “Antispam” or “Block” section».
- 🙅♂️ Activate the switch "Block hidden numbers».
- 📚 Optionally, turn on “Block numbers, contacts” (not from contacts).
Third-party applications for extended filtering
If Xiaomi’s built-in tools aren’t enough, the market offers powerful third-party solutions, such as Truecaller, Yandex.Number, or Kaspersky Who Call, which use real-time spam databases that can automatically detect and block calls from scammers before the phone starts ringing.
Installing these applications requires extensive permissions to access contacts and call logs, which are necessary for the number algorithms to work correctly, and despite privacy concerns, the effectiveness of these programs in combating modern spam is very high.
⚠️ Note: When installing third-party number identifiers, carefully review the privacy policy. Some applications may transfer your contacts to their servers to replenish the database.
Once you install an app, Android will suggest making it the default call app or giving you permission to lock it. Follow the on-screen instructions to integrate the security into the system. This will create a double barrier: first, the application database is checked, then your personal blacklist.
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The combination of the built-in MIUI blacklist and third-party number detector gives maximum protection against spam and unwanted calls.