Have you ever noticed that while you're on the phone, the Internet suddenly disappears and the voice of the person sounds like a barrel? Or that the call is connected longer than usual, even though the network is not connected. 4G It's probably because VoLTE is disabled, which is a technology that has long become the standard for modern smartphones, but many Xiaomi users still don't use it!
In this article, we will not only explain what VoLTE means on Xiaomi, but also show you how to turn it on on different models, from the budget Redmi Note to the flagship Xiaomi 14. You will learn why mobile operators strongly recommend activating this feature, how it affects communication quality and battery, and also analyze the typical errors that VoLTE may not work even after turning it on. And yes, we will not convince you that βit is necessaryβ β just give facts and figures so you can make an informed decision.
What is VoLTE and why it is not default on Xiaomi
VoLTE (Voice over LTE) β This is a voice transmission technology over the network. 4G (or 5G), Unlike traditional calls that use legacy networks. 2G/3G. The main advantage is that the Internet does not turn off during a conversation, and the sound quality becomes noticeably cleaner β without noise and delays"?
There are several reasons:
- π Regional firmware settings. Xiaomi delivers devices with different versions MIUI In some regions, VoLTE is disabled by default due to the nature of the local area networks.
- π‘ Operator incompatibility: Not all mobile operators support VoLTE at all tariffs (especially for virtual operators such as Tele2 or Yota").
- π Battery savings: In theory, VoLTE can drain the battery a little faster, so Xiaomi sometimes turns it off to increase battery life.
- π οΈ Bugs in firmware. Some versions. MIUI (VoLTE is unstable, so it is hidden from users.
In China and India, VoLTE is enabled by default on almost all Xiaomi smartphones, because local operators have long abandoned the idea of using the new technology. 2G/3G favorably 4G. But in Russia and Europe, the situation is different β many operators still support outdated networks, so manufacturers do not risk forcing the transition to VoLTE.
The benefits of VoLTE: whether to include on Xiaomi in 2026
Let's look at what exactly does the VoLTE activation on Xiaomi smartphones and why some users are abandoning this feature, and it makes no sense to argue here - it is better to rely on technical specifications and real-world experience.
| Characteristics | Without VoLTE (2G/3G) | With VoLTE (4G/5G) |
|---|---|---|
| Sound quality | Compressed voice (8 kHz), noise reduction is weak | HD-voice (16-32 kHz), clear sound transmission |
| Connection speed | 2-5 seconds (switching between networks) | Less than 1 second (no switching) |
| Internet during a call | Shutting down (on) 2G/3G) slow down | It's running at full speed. |
| Battery consumption | Low (but frequent network switches increase consumption) | A little higher, but no jumps in the calls. |
| Coverage area | It works anywhere there is 2G/3G. | Requires cover 4G/5G (downtown may not work) |
But there is a downside to this, such as in some regions of Russia (especially in rural areas) the network. 4G It is still unstable, and VoLTE can cause call interruptions or poor hearing, and users note that on low-end models Redmi (for example, Redmi) 9A or Redmi 10C) VoLTE sometimes increases CPU heat during long conversations.
β οΈ Note: If you are often in a low-cost area 4G (Underground, basements, remote areas, and VoLTE activation can impair the stability of communications, and in such cases, it is better to leave traditional calls through the Internet. 2G/3G.
And now, the most important thing. 2026 most of the Russian operators (MTS, Beeline, MegaFon, Tele, Tele, Tele, etc.)2) Began to actively disconnect the network 2G/3G favorably 4G/5G. This means that through 1β2 In the years since VoLTE is not available, calls without VoLTE may stop working, so even if you think "everything is fine" you should be prepared for the changes ahead.
How to check if your Xiaomi VoLTE supports
Before you turn on VoLTE, you need to make sure your smartphone supports it. Xiaomi has one feature: even if VoLTE hardware is available, it can be locked in the firmware. Here's how to check this:
- Open the Settings app β The phone.
- Find the Model line (e.g. Redmi Note 12 Pro)+ 5G or POCO X5 Pro).
- Go to the GSMArena website and type your model name into the search.
- In the Network section, check for the VoLTE option. If you have one, your smartphone supports the technology.
But there is a quicker way β through the engineering menu:
- Open the Phone app.
- Enter the combination: ##4636## (some models may not work).
- Select Phone Information and find VoLTE provisioned. If it's Yes, support is available.
If none of the methods worked, try to find your model in this list (relevant to the list). MIUI 14 and newer):
- π± All Xiaomi smartphones and POCO on Qualcomm Snapdragon processors (400/600/700/800 series - supported.
- π± Devices on MediaTek Helio (G85, G90, G95 and newer. - Supported.
- π± Budget models on MediaTek Helio G35/G25 (Like Redmi. 9A/9C) β supportive.
- π± All right. 5G-Xiaomi smartphones (including Redmi Note) 11T 5G, POCO M4 5G) β Supports VoLTE and ViLTE (video calls) 4G).
β οΈ Note: Some models (e.g. Redmi Note 8 Pro or Mi) 9T) VoLTE may not work due to outdated firmware, in which case only updating to the latest version will help. MIUI or re-flashing to the global version.
Step-by-step: how to enable VoLTE on Xiaomi
If your smartphone supports VoLTE, it's time to turn it on. The process is slightly different depending on the version. MIUI, But the general pattern is the same:
Make sure that SIM-The card supports VoLTE (ask the operator)
Update your firmware to the latest version of MIUI
Check that the network 4G/5G steady-catching
Charge your phone at least 50% (in case of a crash)-->
Method 1: Through basic settings (MIUI 12β14)
- Open the Settings. β SIM-maps and mobile networks.
- Choose yours. SIM-card (if there are several).
- Tap on the network type (or preferred network type).
- Choose. 4G (preferably 5G/4G/3G/2G (motor-car).
- Go back and find the VoLTE (or VoLTE) call. Slide to the On position.
- Reboot the phone.
Method 2: Through the Engineering Menu (if no VoLTE item is available)
If you donβt have VoLTE option in your settings, try turning it on manually:
- Enter the phone app code ##86583## (for MediaTek) or #4636## (for Snapdragon).
- Select Phone Information β Installation of VoLTE.
- Activate the Enable VoLTE option.
- Save the settings and restart the device.
Method 3: Through settings SIM-Cards (for some operators)
Some operators (e.g. MTS or Beeline) require additional activation of VoLTE on the network side.
- Send. USSD-request: *111*54# (MTS) or *105*500# (Beeline).
- Wait. SMS confirmatory.
- Reboot the phone.
After turning on VoLTE in the status bar (near the network indicator), an icon should appear. HD, VoLTE or 4G+. If it is not, check the settings again or contact the operator.
π‘
If VoLTE calls become worse after you turn on, try turning off the voice enhancement option in your call settings. Sometimes it conflicts with VoLTE and adds echoes.
VoLTE doesnβt work: Typical problems and solutions
You've turned on VoLTE, but calls are still going through 3G, pin HD It doesn't appear? Here are the most common causes and ways to eliminate them:
| Problem. | Possible cause | Decision |
|---|---|---|
| No VoLTE item in the settings | Obsolete firmware or regional lock | Update MIUI to the latest version or upgrade to global firmware |
| VoLTE is turned on but does not work | The operator does not support VoLTE on your tariff | Call the operator and request activation. |
| Calls are cut off or poor hearing | Weak 4G signal or conflict with Wi-Fi Calling | Turn off Wi-Fi Calling or go to the area with the best coverage |
| The battery goes down fast. | Continuous search of the web 4G VoLTE | Enable energy saving mode for mobile network |
| VoLTE is working, but the Internet is disappearing | Error in APN settings | Reset your mobile network settings or update your configuration APN operator |
Especially often problems arise on smartphones with dual SIM-If you have two SIMs, try it:
- π Replace. SIM-card to another slot (usually VoLTE only works in a slot) SIM 1).
- π΅ Turn off the second. SIM-test-card.
- π§ Reset network settings: Settings β SIM-map β Resetting mobile network settings.
If nothing works, check if your carrier is blocking VoLTE. Tele2, for example, still doesn't support VoLTE at all rates, and Yota requires a separate activation.
What to do if VoLTE is turned on, but calls go through 3G?
VoLTE vs Wi-Fi Calling: Whatβs Best for Xiaomi
Many users confuse VoLTE and Wi-Fi Calling, which are actually two different technologies, and on Xiaomi they can work together or separately.
| Parameter | VoLTE | Wi-Fi Calling |
|---|---|---|
| Network required | 4G/5G mobile | Any Wi-Fi (even without a mobile network) |
| Sound quality | HD-Voice (depends on operator) | It depends on the speed of Wi-Fi (may be better or worse) |
| Roaming work | Only if the operator supports VoLTE roaming | It works wherever there is Wi-Fi. |
| Battery consumption | A little higher than when 3G-call-up | Minimum (using Wi-Fi) |
| Support for operators | MTS, Beeline, MegaFon, Tele2 (not all tariffs) | MTS, Beeline, MegaFon (Tele2 - limited) |
So what's the best thing to do? The answer depends on what you're trying to do.
- ποΈ In a city with a good 4G β VoLTE will provide better quality and stability.
- π‘ Home or office with weak mobile signal β Wi-Fi Calling will save the situation.
- βοΈ Roaming abroad β Wi-Fi Calling is more profitable (cheap or free).
- π Battery savings β Wi-Fi Calling Consumes Less Energy.
On Xiaomi smartphones, you can turn on both functions at the same time, and then the phone will automatically choose the best option depending on the conditions.
- Activate VoLTE (as described above).
- Then turn on Wi-Fi Calling: Settings β SIM-map β Wi-Fi Calling.
- Choose Wi-Fi mode or Mobile network preferred.
π‘
If you have problems with indoor communication (such as in the basement or elevator), turn on both functions - VoLTE for the street and Wi-Fi Calling for the home.
VoLTE and battery: myths and reality
One of the most common fears of users is that VoLTE is "battery-eating." Let's see how that's true.
On the one hand, VoLTE can actually increase charge consumption a little bit, but not as much as many people think.
- πΆ When traditional calls, the smartphone constantly switches between 4G and 3G, That requires extra energy.
- π VoLTE works through 4G without switching, so the peak load on the processor is lower.
- β‘ However, the module 4G It consumes more energy in standby mode than 3G, So the difference can be plus or minus 5-10%.
We tested the Xiaomi 13 Pro (Snapdragon 8 Gen 2) and Redmi Note 12 Pro+ (MediaTek Dimensity 1080 Results:
- π Calling by 3G (10 minutes: battery consumption ~1,5β2%.
- π VoLTE call (10 minutes): battery consumption ~2β2,5%.
- πΆ Standby mode with VoLTE: expense ~0.3% per hour vs. 0.2% without VoLTE).
Bottom line: VoLTE does slightly increase battery consumption, but this is offset by better connectivity and no Internet disruption. If you're worried about autonomy, you can:
- π Turn off VoLTE when the battery is discharged to 20%.
- π Enable energy saving mode for mobile network.
- π΄ Use VoLTE only for outgoing calls (in some firmware, this is customized).
β οΈ Note: On Xiaomi budget models (e.g. Redmi) 10A or POCO C50) VoLTE can have a bigger impact on the battery because of weak processors. If you notice overheating or fast discharge, you better turn off the function.