VoLTE on Xiaomi: how it works, why you need and how to configure on your smartphone

Have you ever noticed that while talking on the phone, the Internet suddenly disappears and the picture in the messengers stops loading? or that the voice of the interlocutor sounds like he is talking from a barrel? Chances are, your Xiaomi just doesn’t use VoLTE technology, a communication standard that solves both of these problems at once, but what is it really about, and why smartphone makers (including Xiaomi, Redmi and others) are using it. POCO) They are actively embedding it in their devices?

In this article, we will explain how VoLTE changes call quality, why a modern smartphone loses some functionality without it, and most importantly, how to turn on and configure the technology on your Xiaomi. Spoiler: it will take less than a minute, but you will notice the result immediately. And we will also tell you which Xiaomi models support VoLTE in 2026, and what to do if the option suddenly disappeared after the update.

What is VoLTE and how does it work for Xiaomi?

VoLTE (Voice over LTE) — It's a fourth-generation voice technology (4G LTE). Unlike traditional calls that use legacy networks. 2G/3G, VoLTE is digitally transmitting voice data, like packets of Internet traffic, and this has three key benefits:

• 📞 Clean sound without noise: thanks to codec HD Voice (broadband audio) voice of the interlocutor sounds natural, without distortion and background interference.
• ⚡ Instant connection: the call is connected to 1–2 seconds against 5–10 second-in-second 2G/3G).
• 🌐 The Internet does not turn off: you can simultaneously talk and use the mobile Internet (for example, Google information or view maps).

On Xiaomi smartphones, VoLTE technology is integrated at the firmware level MIUI. This means that it works out of the box on most current models, but sometimes requires manual activation. It's important to understand that VoLTE is not a standalone application, but a network function that is supported by both the carrier and the phone itself.

How does it work technically? When you call with VoLTE enabled, your Xiaomi:

1. Connect to the network. 4G LTE (if available).
2. Set up IMS-profile (IP Multimedia Subsystem – a special protocol for voice over IP.
3. Encrypts voice into data packets and sends them through the operator’s Internet channel.
4. On the interlocutor side, packets are decoded back into sound with minimal latency.

VoLTE doesn't consume your Internet traffic, it has a separate virtual channel for voice, so you keep paying for calls, just like you used to.

The benefits of VoLTE for Xiaomi owners: why it matters

If you still think that VoLTE is just a geek thing, you're wrong. Here are the specific situations where technology is saving you.

• 🚗 Navigation during a conversation: no longer need to interrupt the call to view the route in Google Maps or Yandex.Navigator.
• 🏠 Working from home: If you take an important call and share a screen at the same time in Zoom or Teams, VoLTE will not let the Internet hang over".
• 🎮 Online Games: You can chat on the phone with friends without leaving the match PUBG Mobile or Call of Duty.
• 🌍 Roaming: in some countries (for example, in Europe) operators are switched off 2G/3G, Without VoLTE, it simply won’t work.

But there are some less obvious advantages, like VoLTE, which saves battery life, because the smartphone doesn't waste energy switching between the two. 4G (for the Internet) and 2G/3G (It also reduces the load on the operator's network, which in the future may lead to lower communication tariffs.

But it's not all that rosy. There are pitfalls.

⚠️ Note: If your Xiaomi does not support VoLTE, then in networks where disabled 2G/3G (For example, in some regions of the United States or India, you will not be able to make regular calls. Before traveling abroad, check if the technology is working on your device.

Many users confuse VoLTE with ViLTE (Video over) LTE). The latter allows you to make video calls over the network 4G, But that's another story. Xiaomi ViLTE is less supported and requires a separate setup.

Xiaomi models support VoLTE in 2026

Almost all Xiaomi smartphones released after 2018 support VoLTE.

• 📱 Flagships (Xiaomi) 13/14, Mix Fold, Black Shark: Out of the box support, often with advanced settings (e.g. VoNR for the mobile phone) 5G).
• 💰 Mid-segment (Redmi Note) 12/13, POCO X5/F5): VoLTE is available, but may require manual activation.
• 🧩 Budget models (Redmi) A2, POCO C55): Support depends on the region and firmware version. In some countries (e.g. India), VoLTE is disabled by default.

To find out exactly if your Xiaomi technology supports, check the official Xiaomi website or specifications on the GSMArena website. LTE Cat. (category) 4G lower Cat.4 usually means support).

Here is a table with popular models and their VoLTE status at the beginning of 2026:

If your model is not in the table, don't worry. Try to turn on VoLTE manually (instruction below) - often the function is simply hidden in the settings.

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Before buying Xiaomi in another region (e.g., the global version in China), check whether the VoLTE model supports your carrier.

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

If your smartphone supports VoLTE but the feature is disabled, follow this instruction.The process may vary slightly depending on the version. MIUI, But the general logic is the same.

Make sure you have it installed. SIM-support-card 4G

Update your firmware to the latest version of MIUI

Check that mobile data is included

Reboot your smartphone before setting up-->

Step 1: Open Settings and go to the section SIM-maps and mobile networks.

Step 2: Choose yours SIM-card (if there are several).

Step 3: Find VoLTE (or VoLTE calls) to call.

Step 4: Switch the slider to the position On..

If the VoLTE item is not on the menu, try an alternative path:

1. Enter the search for settings (lamp in the upper right corner) the VoLTE request.
2. Or go to Settings. → Additionally. → Mobile network → Network type and select 4G (VoLTE).

In some models (for example, POCO X3 or Redmi 9) you may need to enter an engineering code to activate:

1. Open the Phone app.
2. Dial #86583## (or #86573## for ViLTE).
3. In the menu that appears, turn on VoLTE for the desired SIM-map.

Once turned on, restart your smartphone. To make sure VoLTE is working, look at the network icon in the status bar:

• 📶 4G+ or LTE+ + inscription HD Or VoLTE nearby - everything is set up correctly.
• 📶 Only 4G without additional icons – VoLTE is inactive.

⚠️ Note: On some firmware (such as custom LineageOS or Pixel Experience), VoLTE may not work even with hardware support. MIUI or find a special patch.

Xiaomi VoLTE Issues: Why It Doesn’t Work and How to Fix It

Even if you did everything according to the instructions, VoLTE may not work, and here are the most common reasons and ways to eliminate them:

If none of these methods worked, check whether your carrier is blocking VoLTE, for example, in Russia, some virtual operators (like the one in the Internet). Tele2 Or Yota, they might limit the technology. To find out exactly, send it to the computer. USSD-request:

• For MTS: *111*59#
• For Beeline: *110*180#
• For MegaFon: *105*495#
• For Tele2: *155*1#

If the operator has confirmed support, but VoLTE still does not work, try to change the service. APN-setting:

1. Go to Settings. → SIM-map → Access points (APN).
2. Choose. APN Your company (or create a new one).
3. In the field, Tip. APN Add a comma value to ims (e.g. default,supl,ims).
4. Save and restart your smartphone.

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

In addition to VoLTE, Xiaomi smartphones also feature other voice technologies over the Internet, and let’s see how they differ:

• 📞 VoLTE: Calling by phone 4G. The most common technology, works on most modern smartphones.
• 🎥 ViLTE (Video over LTE): video-calling 4G. Allows you to call with high-quality video, but requires operator support.
• 🚀 VoNR (Voice over New Radio) 5G. New 2023-2026, available only on flagships (Xiaomi) 13T, 14 Pro) and in coated networks 5G.

Let’s compare them by key parameters:

What technology to use? If you have a flagship Xiaomi and access 5G, VoNR is the future of mobile communications, and for most people, VoLTE is the best choice: it works consistently, is supported by all operators and does not require additional settings.

Important: Starting in 2026, some operators (e.g, AT&T in the US completely abandons 3G If your Xiaomi doesn't support the technology, you risk being left without communication.

The future of VoLTE: what awaits the technology in the smartphone Xiaomi

VoLTE technology continues to evolve, and in 2026 Xiaomi is actively implementing new standards that will make calls even better.

• 🔊 EVS-Enhanced Voice Services: Improved audio compression for even clearer voice transmission.
• 🌐 Roaming VoLTE: the ability to use the technology in roaming without additional settings.
• 🤖 AI noise reduction: new models (for example, Xiaomi 14 Ultra) will be voice processing based on neural networks to remove background noise.

Xiaomi is also testing VoLTE over Wi-Fi (also known as Wi-Fi Calling), which will allow you to make calls over the home Internet, saving mobile traffic. K60), It requires operator support.

In the long run, VoLTE will be the foundation for Rich Communication Services (RCS) — A new standard of communication that replaces SMS. Xiaomi is adding support RCS In the coming years, we will see full integration with VoLTE for file transfer, geolocation and even payments right at the time of the call.

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If you plan to use a Xiaomi smartphone for longer than 2-3 years, be sure to check for VoLTE and VoNR support. Without these technologies, the device will quickly become obsolete in terms of communication.

FAQ: Frequent questions about VoLTE on Xiaomi