VoLTE on Xiaomi phone: what it is and how to set it up in 2026

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

In this article, we will explain what VoLTE is on Xiaomi, why its absence worsens your communication experience, and how to enable this option on models from Redmi, POCO You will also learn which operators in Russia and the CIS support this technology, and what to do if VoLTE does not work despite all efforts. SIM-map!

What is VoLTE and why is it important for your Xiaomi

VoLTE (Voice over LTE) is a fourth-generation (4G LTE) voice technology, and unlike traditional calls that use legacy 2G/3G networks, VoLTE transmits voice data digitally, like packets of information on the Internet, with three key benefits:

• 📞 Clean sound without noise or interference – the voice of the interlocutor sounds natural, as if he is near, and not on the other side of the country.
• ⚡ Instant connection – no delay in dialing, the call connects almost instantly (on average over a period of time). 1-2 second-on 5-10 second-in-second 3G).
• 🌐 The Internet does not turn off during a conversation – you can talk and use the mobile Internet at the same time (for example, Google information or check messages).

On Xiaomi smartphones (including the Redmi Note 12, POCO X5, Xiaomi 13T and other 4G-enabled models), VoLTE is out of the box, but often disabled by default. Why? The fact is that not all carriers support this technology, and in some regions the quality of it leaves much to be desired. However, if your carrier provides VoLTE, not using it is like driving a Ferrari in first gear.

VoLTE is not the same as ViLTE (LTE video calls) or VoNR (5G voice calls), which is only supported on Xiaomi’s flagship models (e.g. Xiaomi 14 Pro) and a limited number of carriers.

How to check if your Xiaomi VoLTE supports

Before you set up VoLTE, make sure your smartphone supports it.Virtually all Xiaomi models released after 2018 are equipped with this feature, but there are nuances:

• 📱 Budget models (Redmi) 9A, POCO M3) — Supports VoLTE, but may work unstable with some carriers.
• 📱 Mid-size segment (Redmi Note 11, POCO X4 Pro – full VoLTE support and good compatibility.
• 📱 Flagships (Xiaomi 13, Xiaomi 14) – VoLTE support + VoNR (calls by phone) 5G).

To find out if your model supports VoLTE, do the following:

1. Open Settings → About the phone → All the characteristics.
2. Find the "Network" or "Cellular" section.
3. Check for VoLTE, Improved Calls or 4G Calling options.

If there are no such items, check the specifications of your model on the official Xiaomi website or in the GSMArena database. Please note that even if the phone supports VoLTE, the feature may not work due to:

• 🔄 An outdated firmware version (MIUI).
• 📶 Operator problems (e.g. Tele2 still does not support VoLTE in some regions).
• 🪪 Old. SIM-maps (needed) USIM or LTE-SIM).

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If the phone specs say "LTE Cat.4" and higher, VoLTE is likely supported, and models with "LTE Cat.1" or "3G-only" are not.

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

If your smartphone and carrier support VoLTE, you can turn it on in a few steps. Instructions are relevant for MIUI 12/13/14 (including HyperOS on new models).

Follow the algorithm further:

1. Open "Settings" and go to SIM-Maps and mobile networks (or mobile networks on some models).
2. Choose yours. SIM-card (if there are several).
3. Find the "Improved Calling" option (or VoLTE, 4G Calling).
4. Activate the switch, it should turn blue.
5. Reboot your phone to make the changes take effect.

When turned on next to the network indicator, an HD, VoLTE or 4G+ icon will appear in the status bar. If it is not available, but VoLTE is enabled in the VoLTE settings, try:

• 🔄 Switch the network mode to Only 4G (same-setting SIM-map).
• 📶 Manually select the operator in the Settings → Mobile network → Network operators.
• 🔧 Reset network settings: Settings → Memory and backup copies → Resetting settings → Resetting network settings.

If VoLTE never worked, the problem may be the firmware: Some models (like the Redmi 9T) require a global version of MIUI, not a "Russian" version, in which case the firmware will help (but this is a topic for a separate article).

VoLTE on Xiaomi: common problems and solutions

Even if you have enabled VoLTE correctly, you may experience failures, and here are the most common problems and ways to fix them:

Critical information: On some Xiaomi models (e.g. Redmi Note 10 Pro) after upgrading to MIUI 14, VoLTE can spontaneously shut down. This is a firmware bug, and the only solution is to roll back to the previous version or wait for a patch.

Another common situation is that VoLTE works, but the battery runs out faster. That's OK, because the technology requires more energy to encode the voice. If the discharge is too fast (more than 10% per hour of talking), check:

• 🔋 Battery status in Settings → Battery → Battery status.
• 📡 Network signal strength – if it’s weak, the phone spends more energy maintaining the connection.
• 🔄 Background apps – some instant messengers (like WhatsApp) may conflict with VoLTE.

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If the phone starts to overheat or turn off after turning on VoLTE, there is likely a problem in the hardware (communication module).

VoLTE vs ViLTE vs VoNR: What’s the difference and what’s better

In addition to VoLTE, you can find other voice technologies on Xiaomi smartphones, and let's see how they differ:

• 📞 VoLTE - Calling by phone 4G. The most common technology, works on most models.
• 🎥 ViLTE - video calls on 4G. Allows you to call with video directly through the standard application "Phone" (not supported by all operators).
• 🚀 VoNR - Calls by phone 5G. Available only on flagships (Xiaomi 13 Ultra, Xiaomi 14) and from a limited number of operators (for example, MTS). 5G Moscow).

Which technology is better? It depends on your carrier and your phone model.

• If you have a Redmi or a mid-range POCO (like the POCO X5 Pro), VoLTE is the best choice.
• If you live in a large city with a 5G network and you have a flagship (Xiaomi 14 Pro), try VoNR – the quality of communication will be even better.
• ViLTE is useful if you make frequent calls with video, but remember: it consumes more traffic (about 10MB/minute).

In practice, the difference between VoLTE and VoNR for the average user is minimal – both standards provide excellent sound quality. The main advantage of VoNR is that it less loads the 4G network, freeing up resources for the mobile Internet. However, in 2026, 5G coverage in Russia and the CIS is still fragmented, so VoLTE remains the most reliable option.

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To check which type of call is being used (VoLTE or VoNR), open the notification bar during the conversation, and the "HD" or "5G" icon should appear next to the network indicator.

VoLTE and battery: how to save charge without loss of quality

Many Xiaomi users complain that when VoLTE is turned on, the phone runs out faster. It is true: the technology requires constant maintenance of a connection to the 4G network, which increases the load on the communication module.

First, check which apps are running in the background. Some messengers (like Viber or Telegram) can conflict with VoLTE, causing the phone to constantly switch between networks.

1. Open Settings → Applications → Application Management.
2. Select the messenger and turn off Autostart and Background activity.
3. Enable Battery Optimization for this application.

Second, set up the power saving mode so that it does not turn off VoLTE:

1. Go to Settings → Battery → Energy Saving Mode.
2. Choose Balanced or Performance (not Super Energy Saving).
3. Add the phone app to the exclusion list.

It is also worth turning off the search for the network in manual mode, as this increases the load on the communication module:

• Go to Settings. → SIM-maps and mobile networks → Searching the net.
• Select Automatically (not manually).

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If you rarely call but want to save battery, you can turn off VoLTE and use regular 3G calls. Sound quality will be worse, but the charge will last longer.

VoLTE on Xiaomi in roaming: does it work and how much it costs

One of the most common questions is, will VoLTE work roaming? The answer depends on your operator and country of residence. In most cases, VoLTE in roaming is turned off automatically and calls go through 2G/3G networks.

• 🌍 Not all operators have VoLTE roaming agreements.
• 💰 VoLTE calls in roaming can be charged as data, not as minutes (which is more expensive).
• 📡 In some countries (e.g. Turkey or UAE) VoLTE may work, but the quality of communication will be unstable.

To check if your operator supports VoLTE roaming, contact support or check the information on the official website.

• MTS supports VoLTE roaming in some countries in Europe and Asia.
• Beeline and MegaFon – only in a limited number of directions (mainly CIS).
• Tele2 does not support VoLTE in roaming at all.

If VoLTE does not work in roaming, but you want to maintain the quality of communication, you can use alternatives:

• 📲 Messengers (WhatsApp, Telegram, Viber) – calls over Wi-Fi or mobile data (but are charged as Internet traffic).
• 💬 Zoiper or Linphone — SIP-VoIP Call Clients (require settings).
• 📞 Local. SIM-If you are going abroad for a long time, buy a local card. SIM VoLTE-enabled.

⚠️ Note: In some countries (such as the United States or Japan), operators may block VoLTE for foreign countries. SIM-Before traveling, check this information with your provider.

FAQ: answers to frequent questions about VoLTE on Xiaomi