Xiaomi VoLTE icon: what it is and how to use it correctly

You noticed a mysterious VoLTE icon on your Xiaomi at the top of the notification bar and wondered what it meant: This little icon hides behind it one of the key technologies of modern mobile communications, which dramatically changes the quality of voice calls. Unlike traditional calls through 2G/3G, Voice over LTE (VoLTE transmits voice over high-speed 4G-networks, providing crystal clear sound, instant connection and the ability to use the mobile Internet in parallel.

But why doesn't this icon appear on all Xiaomi devices? Because VoLTE support depends on three things: the smartphone model, the MIUI firmware version, and your mobile operator's settings. For example, flagship models like the Xiaomi 14 Ultra or Redmi Note 13 Pro+ support the technology out of the box, whereas on budget devices it may need to be activated manually. In this article, we'll look at how VoLTE works on Xiaomi, what benefits it provides, and why sometimes the icon suddenly disappears - or, on the contrary, does not appear at all.

What is VoLTE and why is it important for Xiaomi?

VoLTE (Voice over LTE) is a fourth-generation (4G) voice call standard that has replaced the legacy CSFB (Circuit Switched Fallback) technology. What's the difference? When you call, your Xiaomi smartphone jumps from 4G to 2G/3G, losing Internet speed and communication quality. VoLTE doesn't: Voice is digitally transmitted over the same channels as data, which gives you:

• 🎤 HD-sound quality – sampling rate up to 16 kHz (vs. 8 kHz for traditional calls), which makes the voice of the interlocutor more natural.
• ⚡ Instant connection – call setup time is reduced from 5-7 seconds to 1-2.
• 🌐 Parallel Internet – you can talk and use mobile traffic at the same time (for example, Google information or view maps).
• 🔋 Saving charge – no need to switch between networks, which reduces the load on the modem.

For Xiaomi, VoLTE support has become especially relevant after the refusal of operators from 2G/3G in favor of 4G/5G. For example, in Russia, Beeline and MegaFon have already begun to disconnect outdated networks, which means that without VoLTE, some Redmi or POCO models may lose the ability to call. At the same time, not all Xiaomi smartphones support the technology in the same way: flagships (for example, Xiaomi 13T Pro) usually work with VoLTE out of the box, and budget devices (like the Redmi A2) may require manual configuration.

What does the VoLTE icon look like on Xiaomi and where to look for it?

The VoLTE icon on Xiaomi smartphones appears in the top notification bar (near the network, battery charge and time indicators). Depending on the MIUI version and device model, it can look different:

• 📶 The standard version is the inscription VoLTE or HD on a blue/green background (e.g. on Xiaomi 12 Pro).
• 🔄 An alternative form is a tube icon with waves or the letter V (found on the POCO X5 Pro).
• 🚫 No icon – if VoLTE is active but the icon is not displayed, check the theme settings or firmware version.

To make sure the technology works, follow the following steps:

1. Open the Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-card (if there are several).
3. Check for VoLTE or Improved Calls – it should be enabled.
4. Make a test call: if the connection is established instantly and the sound is clearer, VoLTE is active.

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If the VoLTE icon flashes or disappears during a conversation, it could indicate unstable 4G coverage. Try switching to another cell or updating your firmware.

Why Xiaomi doesn’t have a VoLTE icon: the main reasons

If your Xiaomi doesn’t show a VoLTE icon, the problem may be one of five key factors.

Critical nuance: on some Xiaomi models (e.g. Redmi 9A or POCO M3) VoLTE can be blocked at the firmware level for certain regions, in which case only custom firmware installation (e.g. Xiaomi.EU) will help, but this will void the warranty.

⚠️ Note: If after the update MIUI The VoLTE badge is missing and calls are made through the 3G, Try resetting your network settings: Settings → SIM-map → Resetting mobile network settings. This often solves the problem without losing data.

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

Activation of VoLTE on most Xiaomi smartphones takes no more than a minute, but the process may vary depending on the version of MIUI. Below is a universal instruction, suitable for models from Redmi Note 10 to Xiaomi 14:

Check your model’s support for VoLTE|Update. MIUI last-minute|Make sure that SIM-The card supports VoLTE (USIM)|Activate the function in the settings SIM-map|Reboot the phone.-->

Detailed instructions:

1. Update your firmware. Go to Settings → About Phone → Update your system and install the latest patches. VoLTE is critical for MIUI at least 12.5 (older models may require MIUI 13+).
2. Check it out. SIM-VoLTE only works with map formats. USIM (They are issued by operators from 2018. SIM older, contact the salon for a replacement.
3. Activate VoLTE in the settings. Path: Settings → SIM-maps and mobile networks → [Choose. SIM] → On some firmware, the item may be called Improved Calls or 4G-call-up.
4. Restart the device. Once the function is enabled, a requisite is required to make the changes effective.
5. Check it. Make a test call: if the VoLTE or HD icon appears in the status bar and the sound is clearer, everything is set up correctly.

If VoLTE has not worked after these steps, check:

• 📡 Coverage 4G — VoLTE requires a stable signal. LTE. In areas with low coverage, the phone will automatically switch to 3G.
• 📱 Regional settings – on some firmware (e.g. global) VoLTE can be turned off for specific countries. → Additionally. → Region.

VoLTE vs ViLTE vs VoNR: What’s the difference and what’s best for Xiaomi

In addition to VoLTE, in the settings of Xiaomi you can find other abbreviations associated with voice communication: ViLTE and VoNR. Let's figure out what they mean and which standard is preferable:

• VoLTE (Voice over LTE) — Classical standard for calling 4G. Supported by all modern Xiaomi smartphones and most carriers. HD-sound and rapid connection.
• ViLTE (Video over LTE) is a VoLTE extension that allows you to make video calls over 4G without using third-party applications (like WhatsApp). On Xiaomi, it works only between subscribers of the same operator (for example, "MegaFon → MegaFon"). The icon is displayed as ViLTE or a video camera icon.
• VoNR (Voice over NR) — similar to VoLTE, but for networks 5G. So far, it is supported by a limited number of models (for example, Xiaomi 13 Ultra) and operators (in Russia - only MegaFon in test mode: 5G VoNR.

Which standard to choose? It all depends on your operator and Xiaomi model:

⚠️ Note: On Xiaomi smartphones with support 5G (for example, POCO F5 Pro) there may be a conflict between VoLTE and VoNR. If VoNR calls are interrupted after activation, turn it off in the settings and use only VoLTE.

Xiaomi VoLTE Problems: How to Fix Common Mistakes

Even if VoLTE is successfully activated, Xiaomi users sometimes run into problems: the icon disappears, calls are cut off or the sound becomes robot-like.

• 🔄 VoLTE is turned on, but immediately shut down Reason: Unstable 4G-Coverage or conflict with energy saving mode Solution: Disable Adaptive Battery in Settings → Battery and check the signal level.
• 🤖 Voice of the interlocutor sounds like a robot Reason: Uses an outdated codec (for example, using a robot, AMR instead EVS). Solution: Update firmware or reset network settings (Settings) → SIM-map → Reset).
• 📵 There is a VoLTE badge, but calls go through 3G Reason: Operator blocks VoLTE for your tariff or region Solution: Call back in support of the operator and check if the service is enabled"HD-"calls" on your number.
• 🔋 VoLTE is very draining the battery Reason: Constant activity of the modem 4G Solution: Turn off VoLTE in the settings and use it only when necessary.

If none of these methods worked, try an alternative method:

1. Install the NetMonster app from Google Play.
2. Launch it and go to the LTE tab.
3. Check if IMS Registered is active, and if not, the problem is on the operator's side.

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On Xiaomi smartphones with MediaTek processors (such as the Redmi Note 12), VoLTE can work unstable due to the nature of the modems, in which case only replacing the device or firmware with custom will help.

VoLTE on Xiaomi in roaming: does the technology work abroad

One of the most common questions Xiaomi owners ask is: will VoLTE work when traveling abroad? The answer depends on two factors: your operator’s support for roaming and agreements between local providers.

• ✈️ Roaming in CIS countries (Kazakhstan, Belarus, Armenia) VoLTE usually works, since operators (for example, "Beeline" and "Kaztelecom") have mutual support agreements.
• 🌍 Europe (Germany, France, Italy) VoLTE is supported by most operators (e.g. Deutsche Telekom or Orange) but may require manual setup APN. Before traveling, check the details with your provider.
• 🏝️ Asia (Thailand, Vietnam, Turkey) In popular tourist destinations, VoLTE is often blocked for roaming customers.It is recommended to disable the feature in the settings to avoid connection problems.
• 📵 US and Canada VoLTE only works with local SIM-cards (e.g. T-Mobile or AT&T. The technology is not generally available on Russian roaming numbers.

Advice for travelers: before traveling:

1. Check with the operator whether VoLTE is supported in the host country.
2. Save your APN settings for your local carrier (you can find them on sites like APN Settings).
3. Turn off VoLTE if you notice connection problems - in roaming it is better to rely on proven ones. 3G-network.

⚠️ Note: Some Xiaomi models (e.g. Mi 11 Lite) may have a roaming bug that causes the phone to “hang” while searching for the network, in which case reboot or forced manual selection of the network (Settings) will help. → SIM-map → Choice of network → Manual scanning).

FAQ: Frequent questions about VoLTE on Xiaomi