Modern Xiaomi smartphones running the MIUI shell or the new HyperOS have the widest voice management functionality. However, the standard settings offered by the manufacturer are often hidden in the depth of the menu or require additional activation through engineering codes. Users who have moved from other platforms may find it difficult to record a conversation or block intrusive spam.
Smart telephony configuration is not just a convenience, but also a matter of your digital security and time saving. In this article, we will discuss how to adapt the call to your needs, including hidden functions and disabling unnecessary notifications, you will learn how to manage redirects, adjust sound quality and effectively combat advertising calls.
Before we get to the complex manipulations, itβs worth noting that the interface may vary slightly depending on the version of the operating system. The basic principles remain the same for most models, from the budget Redmi to the flagship Mi series.
Basic setting of the call and interface
The first thing that a user encounters when dialing is the dialing interface. In Google's standard Phone app, which is most commonly installed on global versions, or in the native MIUI call, you can change the look and behavior of the buttons. To access the basic parameters, you need to open the application and click three dots in the corner of the screen, selecting Settings.
Here you can turn on a smart set that offers contacts when you enter the first digits, or activate vibration when you press the buttons for tactile response. Particular attention should be paid to the section "Scream during call." This is where the screen behavior when the incoming call is adjusted: will it light up when you bring it to the ear or remain active during the conversation.
- π Theme of design: the possibility of changing the color schemes of the dialing interface.
- π Volume: separate volume control of the call and multimedia at the time of the call.
- πΆ HD-Icon: A VoLTE communication quality indicator that can be turned on or hidden.
β οΈ Note: If you have lost the ability to record conversations automatically after the system update, this is due to Google's security policy. On global firmware, recording now requires confirmation or only works through special voice recorders with access to a microphone.
Don't ignore the quick dial setting, and by assigning frequently used contacts to numbers 2 to 9, you can make calls with one long tap in lock mode or from your desktop, which makes it much faster to communicate in an emergency.
How to Enable Conversation Recording on Xiaomi
The issue of recording phone conversations remains one of the most acute for smartphone owners in China. Unlike many competitors, Xiaomi has long retained the native recording function, but new versions of Android and MIUI have changed the algorithms of operation.
To activate the built-in function, go to Settings β Call settings β Call recording. You can choose All Numbers or Selected Numbers, and the critical thing is to choose the storage, which is that the default is to store the records in internal memory, but you can redirect them to the internal memory. SD-card, if it is installed, so as not to clog the system partition.
βοΈ Checking the recording settings
There's a nuance to the recording notification, and in some regions, the law requires that you alert the person, and if you hear a loud signal or a voice message, "Talk is being recorded," when you start a conversation, it's a system limitation, and you can get around it by setting the theme of the registration from Themes store, which has the word "Record" in its name, or by applying a patch through a computer, which requires Root rights and deep knowledge of the system.
| Parameter | Description | Recommendation |
|---|---|---|
| File format | MP3 or M4A | Choose MP3 for better compatibility |
| Sound source | Microphone or system sound | System sound is cleaner, but may not work on all models |
| Notification | Sound signal | You can turn off some versions of the firmware |
| Storage folder | /MIUI/sound_recorder/call_rec | Clean your folder regularly or change paths |
If standard methods to record a conversation fails, you should pay attention to applications like Call Recorder - Cube ACR. They require special permissions through the menu Special. capabilities (Accessibility), which allows you to intercept the audio stream bypassing the system limitations of Android.
Blocking Spam and Unsolicited Numbers
The problem of intrusive calls from advertising agents and scammers is solved by built-in MIUI tools that work on the database of antivirus Avast or Tencent. To activate the protection, open the Security application, find the Antispam section and enable the blocking of unknown numbers.
The system allows you to create flexible rules, for example, you can prevent calls from hidden numbers or numbers that are not stored in contacts, this is especially true for those who use a smartphone only for a narrow circle of communication, and turning on Do Not Disturb mode also helps to cut off unnecessary notifications, skipping only selected contacts.
- π« Blacklist: Manually entering numbers or importing from call history.
- π Categories: blocking by type (taxi, delivery, telemarketing).
- π Password: Install a pin code to the anti-spam menu to protect your settings.
β οΈ Warning: When you enable aggressive locking of "all unknowns," you may miss an important call from a courier or doctor whose number is not yet listed in your phone book.
Also worth mentioning is the Number Define feature, which in some regions works through Internet services to tell who is calling even if the number is not in the contacts, and to work this feature, you need to allow the phone app to access the network and geolocation (optional) to check the number against the cloud database.
Configure forwarding and waiting for a call
Redirection features allow you to redirect incoming calls to another number if you are busy, not answering or your phone is off. These are standard carrier services, but you can manage them directly from your smartphone screen. The menu is on the route of Call Settings β Redirect.
There are four main scenarios available here: forwarding whenever it is busy, when there is no response and when it is unavailable.
In parallel, you set up call waiting, and if it's active, you hear a beep when you get a second call during the call, and you can switch between people, and if you turn off that, the second caller will hear the "busy" signal.
*#21# - Checking the forwarding status
*#61# - Checking for forwarding without a response
*#62# - Checking for forwarding when unavailable
#002# β Complete cancellation of all redirectsUse of the USSD-The codes above allow you to instantly check the status of services or cancel them without logging into the deep settings menu. This is especially useful if the phone interface freezes or does not work properly.
Improved sound quality and VoLTE
VoLTE (Voice over LTE) technology allows high-quality voice transmission over 4G networks without switching to 2G/3G during a conversation.This provides cleaner sound and the ability to use the Internet and voice simultaneously. On most modern Xiaomi models, VoLTE support is enabled by default if the operator provides such a service.
If the badge HD or VoLTE does not appear, check the settings in the section SIM-Make sure the "Use VoLTE" slider is activated, and in some cases you need to request a service from the carrier, as it may be disabled on the network side.
You can also adjust noise cancellation. In the engineering menu (accessible under ##6484##) under the speaker test and microphone test, you can check the main and secondary microphones. If people complain about a quiet voice, the microphone hole may be contaminated or covered with a cover.
- ποΈ Main microphone: located at the bottom of the case, responsible for the main voice transmission.
- π Secondary microphone: located at the top, used for noise reduction system.
- π‘ Codecs: Modern codecs (EVRC, AMR-WB) It provides natural sound.
Hidden Codes and Engineering Menu
For advanced users, Xiaomi provides access to the CIT (Customer Integration Test) engineering menu, a diagnostic tool that allows you to test all components of the phone, including communication modules, and log in via a standard call.
This menu can check signal strength, antenna status and test calls, but be very careful: changing the settings in the non-user partitions (e.g. resetting the network calibration) can cause the modem to run unstable. Use only the Test function, avoiding Write or Set.
β οΈ Attention: Don't try to change IMEI This is illegal in most countries and can result in a complete lockdown of the communication module by the operator or manufacturer.
The code ##4636## opens the testing menu, where you can force the network type (LTE only, GSM only) to be displayed in the Phone Information section or see detailed Wi-Fi connection statistics.