VoLTE in Xiaomi phone: what it is, how it works and why you need it

Have you ever noticed that when you're on the phone, the Internet suddenly stops working? Or the voice of the person you're talking to sounds like they're talking from a barrel? Your Xiaomi probably doesn't use VoLTE technology -- it's a waste of time. This feature dramatically changes the quality of mobile communication, but many users don't even know it exists.

In this article, we’ll explore what VoLTE is in a Xiaomi phone, how it differs from regular calls, how to turn it on (even if the operator “hidden” the settings), and why without this technology you lose up to 40% of Internet speed during a conversation. And also find out which Xiaomi, Redmi and POCO models support VoLTE in 2026 — spoiler: even some budget devices in 2020 release may not support it due to the limitations of the chipset.

What is VoLTE and how is it better than regular calls?

VoLTE (Voice over LTE) is a 4G voice technology, as opposed to traditional calls that use legacy 2G/3G networks. The main advantage is that voice is transmitted digitally as data, not as an analog signal.

• 🎙️ Clean sound without noise – noise, echo and underwater voice effect disappear.
• ⚡ Instant connection – the call is connected to 1-2 seconds against 3-5 second-in-second 3G).
• 📶 The Internet does not turn off – you can talk and use the mobile Internet at the same time (in the Internet). 3G When you call, the Internet is cut off).
• 🔋 Battery savings – the phone does not switch between networks, which reduces the load on the communication module.

But there’s a flip side to this: if your Xiaomi doesn’t support VoLTE or the feature is disabled, you automatically switch to 3G when you call — which means lower communication quality and loss of Internet speed. For example, if you watch YouTube at 1080p and you get a call, the video will slow down or stop until the conversation is over.

How to know if your Xiaomi VoLTE supports

Not all Xiaomi smartphones support VoLTE, even if they run on 4G networks.

1. Model check: Most devices on Qualcomm Snapdragon chipsets (400 series and up) and MediaTek Helio (G85 and up) support VoLTE. Budget models on the Snapdragon 425/439 or older Helio A22/P22 are often not.
2. Xiaomi official list: The manufacturer’s website has a page with supported models (updated once a quarter).
3. Manual testing: Ask a friend to call you and look at the network indicator during a conversation. If it shows 4G or LTE, VoLTE works. If it switches to 3G or H+, it doesn't.

⚠️ Note: If your Xiaomi is bought in China (the domestic version), VoLTE may not work in Russia even with the support of a chipset.

Step-by-step: how to enable VoLTE on Xiaomi

If your smartphone supports VoLTE but the feature is disabled, follow this instruction. Please note that the paths in the menu may vary slightly depending on the version of MIUI (updated for MIUI 14).

Make sure that SIM-The card supports VoLTE (list of operators below)

Update the firmware to the latest version

Restart your phone before setting up

Check balance (some operators block VoLTE when balance is negative)-->

The main path:

1. Open the Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-card (if there are several).
3. Tap on the network type or preferred network type.
4. Choose 4G (preferably) or LTE.
5. Go back and find the VoLTE or Improved Calls option – move the slider to the right.

If the VoLTE item is not on the menu:

• 🔧 Use the engineering menu code: dial in the phone keyboard ##4636##, select Phone Information → Set preferred network type → LTE only.
• 📱 Check the settings. SIM-Cards: some operators (e.g., the Television)2) Requires activation of VoLTE through USSD-request (dial *111*305# activate).
• 🔄 Reset network settings: Settings → Memory. → Resetting settings → Resetting network settings.

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If after turning on VoLTE calls began to be interrupted or sound disappears, try to turn off the Wi-Fi Calling function in the settings. SIM-The two technologies sometimes conflict.

VoLTE and telecom operators: who supports the technology in 2026

Even if your Xiaomi supports VoLTE, the feature will not work if your mobile operator did not activate it.

• 🏆 MTS: Full VoLTE support at all rates (except for "Super MTS" for retirees.
• 🥈 MegaFon: VoLTE is available at 80+ regions, but requires the option to be connected "4G+" (Check the coverage on the coverage map.
• 🥉 Beeline: VoLTE support only in Moscow, St. Petersburg and 15 other cities. Dial in to activate *110*181#.
• ⚠️ Television2: VoLTE only works on My Television tariffs2" and "All of Myself." Activated on request *111*305#.
• 🌐 iota/Yota: VoLTE is supported, but only on the SIM-cards issued after 2021 year-end.

To find out if you have VoLTE activated, call the short number *100# (for MTS) or *111# (for Beeline / Tele2) and ask for information about connected services, HD-call-up 4G Voice - the function is active.

⚠️ Note: If you use a virtual operator (Tinkoff Mobile, SberMobile, Lenta Mobile), VoLTE will most likely not work – these operators rent networks from the Big Four and often do not have access to advanced features.

Common VoLTE Problems on Xiaomi and Their Solutions

VoLTE should work out of the box, but in practice, Xiaomi users face a number of problems.

If none of these methods worked, try resetting your network settings:

Settings → Memory → Resetting settings → Resetting network settings

After the reset, the phone will reboot and all network settings will return to factory settings.This often helps if VoLTE previously worked, but Suddenly stopped.

VoLTE vs Wi-Fi Calling: What’s the difference and what’s better

Many people confuse VoLTE and Wi-Fi Calling, but these are two different technologies with different working principles:

• 📶 VoLTE: Works through a mobile network 4G/5G. It requires operator coverage, and the quality depends on the loading of the base station, supported by most modern smartphones.
• 📶 Wi-Fi Calling: Works over any Wi-Fi network. does not require mobile network coverage. Quality depends on the speed and stability of Wi-Fi. Supported by not all operators (in Russia only MTS and MegaFon).

So what's better? The answer depends on the situation.

• 🏙️ In a city with a good 4G-coating – VoLTE is preferred (stable and less latency).
• 🏠 At home or in an office with a bad signal but good Wi-Fi – Wi-Fi Calling will save the day.
• 🌳 On a trip or a trip where there is no 4G, No Wi-Fi, you have to rely on the good old days. 3G-call-up.

On Xiaomi, both features can be used simultaneously, but sometimes they conflict. If you notice that calls are interrupted when you switch between Wi-Fi and the mobile network, turn off one of the options in the settings. SIM-map.

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VoLTE and Wi-Fi Calling are not substitutes for each other, they are complementary. Perfect scenario: VoLTE for the street, Wi-Fi Calling for the home/office.

The future of VoLTE: what awaits technology in the era of 5G

With the advent of networks 5G And many people are asking, "Will VoLTE become obsolete?" And the answer is no, but the technology is evolving. Right now, operators are testing VoNR, which is the equivalent of VoLTE, but for the first time, it's not a problem. 5G-The benefits of VoNR:

• 🚀 Even lower latency (less than 50 ms vs. 100 ms for VoLTE).
• 🎤 Sound quality close to studio (codecs) EVS).
• 🤖 Support for advanced functions (e.g. real-time speech translation).

However, in Russia, the mass adoption of VoNR is unlikely until 2026-2026 due to slow development. 5G-VoLTE remains the de facto standard for voice communications. 4G-network, and its support will be relevant for at least another 5-7 years.

If you plan to buy a new Xiaomi in 2026, be sure to check VoLTE support - even in budget models. Without this feature, you risk getting stripped down functionality, especially if your carrier has already started to turn off 3G networks (as MTS and MegaFon have done in some regions).

FAQ: Frequent questions about VoLTE on Xiaomi