VoLTE on Xiaomi: what is this feature, how to configure it and why it is needed by smartphone owners

Have you ever noticed on your Xiaomi screen that VoLTE is next to the network indicator? Or suddenly the calls stopped working after updating the firmware, although the Internet is stable? Perhaps the problem lies in this technology, which many users do not even know. VoLTE (Voice over LTE) is not just “another acronym” in the settings of a smartphone, but a key element of modern mobile communication that dramatically changes the quality of voice calls.

In this article, we’ll explore what VoLTE is on Xiaomi, why carriers are actively switching to it (and what will happen if you don’t turn it on), how to check the support on your device and configure it correctly, and also discuss little-known nuances — for example, why VoLTE can worsen communication in some situations and how to fix it. If you own a Redmi, POCO or Xiaomi’s flagship 13/14 series, this information will save you nerves and time.

What is VoLTE and why it matters to Xiaomi in 2026

VoLTE (Voice over LTE) is a 4G (LTE) voice technology, unlike traditional calls that use legacy 2G/3G networks. The main difference is that with VoLTE, your voice is converted into digital data packets and transmitted over the Internet protocol, like messengers like WhatsApp or Telegram, but with priority and guaranteed quality.

Why is this so important for Xiaomi and other smartphones?

• 📶 Operators are shutting down 2G/3G: In Russia and the world, there is an active dismantling of outdated networks. 3G In most regions, MegaFon plans to fully transition to the 4G/5G ce 2026 Without VoLTE, your Xiaomi won’t be able to call on these networks!
• ⚡ Instant connection: Calls are connected to 1–2 seconds against 5–10 second-in-second 2G/3G). No delays in dialing the number.
• 🎤 Quality. HD-Voices: Broadband audio codec (AMR-WB) It delivers sound in the range of 50-7000 Hz (versus 300-3400 Hz in older networks), the difference is audible even on cheap headphones.
• 📱 Parallel work: You can call and use mobile Internet at the same time (in the Internet). 3G When the phone rings, the internet goes off).

But there is a downside: not all Xiaomi models support VoLTE out of the box, and in some regions operators have not yet completed network setup, for example, owners of the Redmi Note 8 Pro or POCO X3 NFC may find that the feature is in the settings, but does not work due to the lack of certification from the operator.

How to check if your Xiaomi VoLTE supports

Before you set up the function, make sure your device supports it.

1. Xiaomi official list: Xiaomi has a table of compatibility of models with VoLTE for different regions, for example, Xiaomi 13 Pro supports the feature globally, and Redmi 9A only in some countries.
2. Smartphone Settings: Go to Settings → SIM-maps and mobile networks → [choose SIM] → Enable VoLTE. If no option, no support.
3. Specifications: Check on sites like GSMArena or 4PDA under Network. Look for VoLTE or LTE Cat.4/6/12.
4. Practical test: Call another phone with VoLTE enabled, and if you see an HD or VoLTE icon on the screen during the call, it works.

Importantly, even if the model supports VoLTE, the operator can block its work on uncertified devices, for example, Tele2 in Russia officially supports VoLTE only on smartphones from its list (mainly Samsung and Apple).

⚠️ Note: If you bought Xiaomi in China (the domestic version), VoLTE may not work in Russia even with the support of the model. These devices are often not certified for local operators. MIUI (But it voids the guarantee!).

How to enable VoLTE on Xiaomi: step-by-step instructions

If your device supports the technology, you can turn it on in a few steps. MIUI 12/13/14:

Make sure that SIM-The card supports VoLTE (ask the operator)

Insert SIM into slot 1 (on some models, VoLTE only works in it)

Update the firmware to the latest version (Settings → About the phone → System Update)

Go to Settings → SIM-maps and mobile networks → [choose SIM] → Enable VoLTE

Reboot your phone (required!)

Make a test call to check the VoLTE icon-->

If you don’t have the option to Enable VoLTE on the menu, try these methods:

• 🔍 Hidden menu: Dial in the phone app ##4636##, Choose Phone Information → Establish a preferred network type → LTE/4G (preferably).
• 📱 Double. SIM: On some models (e.g. Redmi Note 11), VoLTE only works for the Redmi Note 11. SIM Move the card if the calls don't pass.
• 🔄 Reset Network Settings: Go to Settings → Memory. → Resetting settings → Reset the network settings. After you restart, check again.

If VoLTE does not appear after all the manipulations, the problem may be on the operator's side, for example, Yota in some regions requires replacement. SIM-new-card (USIM) Check this with support on 0611 (for Yota»).

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Before turning on VoLTE, check the balance – some operators (for example, Tele2) write off money for the first time. HD-Call as a service "Premium-communication" The cost is up to 3 rubles per minute.

Why VoLTE may not work for Xiaomi-5 causes and solutions

VoLTE seems like a simple feature, but in practice, Xiaomi users face a lot of problems, and here are the most common reasons and ways to fix them:

1. Outdated firmware: VoLTE requires up-to-date software. For example, on Redmi 9T, the feature only appeared in MIUI 13.0.4. Update manually through Settings → About Phone → System Update.
2. Operator Lock: Tele2 and MTS in some regions block VoLTE on uncertified devices, so call support (e.g. MTS: 0890) and ask for the service to be activated for your IMEI.
3. Wrong settings APN: VoLTE requires a special access profile. APN: Name: internet.tele2.ru (for “Tele2») APN: internet.tele2.ru Type APN: default,supl,ims For other operators, the parameters are different (see their sites).
4. Conflict with Wi-Fi Calling: On some models (e.g, POCO F4) Simultaneous activation of VoLTE and Wi-Fi Calling causes crashes. Disable the second function in Settings → SIM-map → Wi-Fi Calling.
5. Hardware limitations: Budget models (Redmi A1, POCO C40) do not physically support VoLTE due to a weak modem.

If nothing helps, try resetting your network settings (see instructions above) or installing custom firmware (e.g. Xiaomi.EU).But remember: this voids the warranty and can lead to problems with your network. OTA-update.

VoLTE vs Wi-Fi Calling: What’s the difference and what’s best for Xiaomi

Many people confuse VoLTE and Wi-Fi Calling, although they are different technologies, and we will see how they differ and when they are more useful:

When to use what?

• 📶 VoLTE is ideal for urban environments with good 4G-It provides better voice quality and doesn't waste Wi-Fi traffic.
• 📶 Wi-Fi Calling saves in places with poor mobile signal (basement, village, outside the city), but requires stable Wi-Fi. Xiaomi feature supports models no older than 2021 (Redmi Note 10 Pro, Xiaomi) 11T newer).

Can you use both technologies at the same time? Most Xiaomi don't. VoLTE is the priority, and Wi-Fi Calling is activated only when there is no 4G network. The exception is flagships like Xiaomi 13 Ultra, where both functions work in parallel.

⚠️ Note: On some firmware (for example, MIUI Global POCO X3 Pro) simultaneous activation of VoLTE and Wi-Fi Calling leads to loss of registration on the network, SMS They don't send, even though there's a network indicator, so the solution is to disable one of the functions.

The future of VoLTE: what awaits the technology in 2026-2026

VoLTE is not a temporary solution, but a basis for future communication standards, and operators are already testing:

• 📡 VoNR (Voice over 5G): It is analogous to VoLTE, but for networks. 5G. It allows you to call with even higher quality and less delays.The first Xiaomi with support is the Xiaomi 13 Pro and Mix Fold 3.
• 🤖 AI noise cancellation: Operators are implementing neural networks to filter background noise in real time, for example, MegaFon is testing this feature on the basis of VoLTE.
• 🌍 Global roaming: In 2026, Xiaomi and operators are working on unifying VoLTE for hassle-free calls abroad (now manual switching is often required). 3G).

However, there are risks:

• ⚠️ Shutdown 2G/3G Can leave the owners of old Xiaomi without communication 2019 year of release, which do not support VoLTE.
• ⚠️ Paid HD-Calls: Some operators (such as Tinkoff Mobile) are starting to charge VoLTE calls as “premium” even though traffic is not consumed.

Critical information for Xiaomi owners: if your smartphone is released before 2020 and does not support VoLTE after shutdown 3G The list of "defected" models includes Redmi. 7/8/Note 7, Mi 9 Lite, POCO F1 The solution is to replace the device or buy an external one. 4G-modem-supported CSFB (fallback 2G call-in).

FAQ: Frequent questions about VoLTE on Xiaomi