VoLTE on Xiaomi Redmi: why you need it, how to turn on and fix problems

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 takes longer than usual? Chances are, your Xiaomi Redmi just doesn't activate VoLTE, a technology that dramatically changes the quality of voice communication. This is not just another marketing trick, but a real improvement that is available on all modern smartphones of the brand, starting with the Redmi Note 4 (2017) and later.

In this article, we’ll explain what VoLTE is in plain language (without any fancy terms), why it’s not so bad for your calls, and how to turn it on on your Xiaomi Redmi in a few minutes, and what models support the technology, what to do if VoLTE doesn’t work, and how to check if it’s active right now.

What is VoLTE and why is it important for Xiaomi Redmi?

VoLTE (Voice over LTE) is a 4G LTE voice technology, not an outdated 2G/3G network, as it used to be. Imagine that your voice used to travel on a narrow road with pits (that's 2G/3G networks), and now on a highway (that's 4G).

• 📞 Instant connection – the call starts almost without delay (there is no annoying “buzz” before the answer).
• 🎙️ Pure sound – the voice of the interlocutor is heard clearly, without noise and distortion, as if he were near.
• 🌐 The Internet does not shut down – you can talk and use the mobile Internet at the same time (for example, Google information or check messages).
• 🔋 Battery savings – the phone doesn’t switch between networks, which reduces power consumption.

On Xiaomi Redmi (and other brands) without VoLTE, a forced fallback occurs when calling, a forced switch to 2G/3G. This not only worsens the quality of communication, but also increases the connection time. For example, on the Redmi Note 10 Pro without VoLTE, the call can connect to 5-7 seconds, and with the technology - less than 1 second.

⚠️ Note: If your Xiaomi Redmi does not support VoLTE, the operator can completely disable access to networks 2G/3G In the future (as some providers in Europe and the US have already done), this means that you won't be able to call at all, even in call-only mode".

What Xiaomi Redmi models support VoLTE?

VoLTE is available on all Xiaomi Redmi smartphones released after 2017, but there are nuances: some low-end models (such as the Redmi 5A or Redmi 6) only support VoLTE on certain firmware or in selected regions.

Important: On models older than 2017 (like the Redmi 3S or Redmi 4), VoLTE may not work due to hardware limitations.

If your model is on the list but VoLTE is not activated, the problem may be:

• 📱 The firmware is an outdated version MIUI custom-made.
• 📡 Operator – not all providers support VoLTE in your area.
• 🔧 Settings – the function is disabled in the phone menu.

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

You can activate VoLTE on Xiaomi Redmi in 2-3 minutes. The instructions are suitable for all models with support for technology (see the table above).

1. Open Settings → SIM cards and mobile networks.
2. Choose yours. SIM-card (if there are several).
3. Tap on Enable VoLTE (or Improved Calls, 4G Calls – the name depends on the version of MIUI).
4. Reboot your phone (required!).
5. After rebooting, check the VoLTE indicator in the status bar (near the signal level will appear the inscription HD or VoLTE).

If the VoLTE item is not on the menu, try these methods:

Update. MIUI last-minute|Check if your operator supports VoLTE.|Put it in. SIM-slot 1 card (on some models, VoLTE only works with the first slot)|Reset network settings in Settings → Reset → Resetting network settings-->

On the Redmi Note 8 Pro and later, you can turn on VoLTE via the engineering menu (if the standard method does not work):

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In the menu that opens, select Phone Information → Install your preferred network type → LTE only or LTE/UMTS auto.

⚠️ Note: Some firmware (e.g. global version) MIUI for Redmi 9A) The VoLTE option can be hidden, in which case only flashing to the regional version (for example, the flashing to the regional version) will help, MIUI Russia MIUI EEA).

How to check if VoLTE works on your Xiaomi Redmi

To make sure that VoLTE is active, follow these steps:

1. Call another phone (you can use a second phone or ask a friend).
2. During the call, pay attention to: 📶 Network indicator – next to the signal level should appear an inscription HD, VoLTE or 4G+. 🌐 Internet – check if mobile traffic is working during a conversation (open your browser or messenger). ⏱️ Connection time – the call must be connected almost instantly (less than the time required). 1-2 seconds).

If you don’t have an indicator, but the internet is working while you’re calling, you may have ViLTE (4G video calls) activated, but not VoLTE.

You can also use it. USSD-Teams to check the status of VoLTE operator:

• 📱 MTS: *111*555#
• 📱 Beeline: *110*789#
• 📱 MegaFon: *558#
• 📱 Television2: *155*1#

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If VoLTE doesn’t work but is enabled in the settings, try temporarily disabling Wi-Fi. Some Xiaomi models prioritize Wi-Fi Calling, which prevents VoLTE from activating.

Why VoLTE may not work on Xiaomi Redmi and how to fix it

If you have enabled VoLTE but it is not activated, the reasons may be as follows:

The most common problem is the outdated SIM-VoLTE only works with map formats. USIM (or 4G LTE). If you SIM It is more than 5 years old, most likely, it needs to be replaced, you can do this for free in any cabin of your operator (you have a passport with you).

Another nuance: on some Xiaomi Redmi models (for example, Redmi Note) 8T or Redmi 9C) VoLTE can conflict with dual function 4G (two-way SIM-map-mode 4G In this case, you have to choose: either VoLTE on one. SIM, either 4G on both without improved calls.

VoLTE vs Wi-Fi Calling: What’s Best for Xiaomi Redmi

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

• 📶 VoLTE: Works through a mobile network 4G LTE. Requires cover 4G. More stable communication quality supported by all operators.
• 📶 Wi-Fi Calling: Works through a Wi-Fi connection. Useful in places with poor mobile signal. May be less stable (depending on Wi-Fi quality). Not all carriers support (e.g. Tele2 only from 2023).

Xiaomi Redmi can use both technologies at the same time.

• 🏠 Home – Wi-Fi Calling (saves battery and gives better sound).
• 🚗 Outside: VoLTE (more stable in traffic).

To enable Wi-Fi Calling:

1. Go to Settings → SIM cards and mobile networks.
2. Choose. SIM-map.
3. Activate the Wi-Fi Calling option (or Wi-Fi Calls).
4. If necessary, confirm the address (required for emergency calls).

⚠️ Note: On Redmi Note 10 and later, when activating Wi-Fi Calling, VoLTE can automatically turn off. To avoid this, set a priority for the following: IMS in the Phone Information section.

The future of VoLTE: what awaits owners Xiaomi Redmi

VoLTE is just the beginning, and Xiaomi is already introducing new communication standards into its smartphones:

• 📡 VoNR (Voice over New Radio) – Calls over the Internet 5G. Available on Redmi. K50, Redmi Note 12 Pro+ It promises even lower latency and better sound quality.
• 🤖 IMS (IP Multimedia Subsystem is a single platform for voice, video, instant messengers and conferencing. MIUI 14.
• 🔒 eSIM + VoLTE – Support for virtualization SIM-The new cards will appear in Redmi 13 series.

By 2026, most operators plan to completely abandon 2G/3G networks, leaving only 4G/5G. This means that without VoLTE (or its analogues) it will be impossible to call. Owners of older Xiaomi Redmi models (for example, Redmi 4X or Redmi 5) should consider switching to a newer smartphone, so as not to be left without communication.

In Russia, since 2026, operators have begun testing 2G/3G shutdown in selected regions.If your Xiaomi Redmi does not support VoLTE, you risk losing the ability to call within the next 1-2 years.

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VoLTE is not just a feature, it is a necessity for modern smartphones, and without this technology, the quality of communication will deteriorate, and in the future calls may not work at all.

FAQ: Frequent questions about VoLTE on Xiaomi Redmi