VoLTE icon on Xiaomi Redmi: what it is, how to turn on and why you need it

Have you noticed a new “VoLTE” icon on Xiaomi Redmi’s notification panel and you don’t know what it means? Or suddenly the indicator has disappeared and the quality of calls has deteriorated? This article will examine Voice over LTE (VoLTE) technology in detail: from the principle of operation to turn-based customization on popular models Redmi Note 12, Redmi 11, Redmi 10 and others.

We won’t be overloading you with technical details — let’s just explain: VoLTE is not just “enhanced connectivity,” but a technology that allows you to call over a 4G/LTE network without “switching” to outdated 2G/3G standards. Thanks to this, voice is transmitted in digital HD-quality format, and the connection is established almost instantly. But there are nuances: not all operators support VoLTE, and on some MIUI firmwares the function is disabled by default.

In this article you will find:

• 🔍 What is VoLTE and how is it different from regular calls?
• 📱 What does the VoLTE icon look like on Xiaomi Redmi (with photo)
• ⚙️ Step-by-step instruction for switching on/off function
• 📡 List of Russian operators supporting VoLTE in 2026
• ⚠️ Common Problems and How to Solve Them

1. VoLTE - what are they in simple words

VoLTE is a fourth-generation (4G/LTE) voice-over technology, unlike traditional calls that switch smartphones over 2G or 3G networks, VoLTE runs on top of high-speed Internet connections, and has three key advantages:

• 🎤 Sound quality: Voice is transmitted in HD Voice format (broadband audio codec), which reduces noise and improves legibility, and the difference is especially noticeable in noisy places (for example, on the street or in transport).
• ⚡ Connection speed: A call is connected in 1-2 seconds (versus 5-10 seconds for a normal dial).
• 📶 Stability: The Internet is not interrupted during a conversation (you can talk and use mobile traffic at the same time).

It is important to understand that VoLTE is not the same as ViLTE (LTE video calls) or VoWiFi (Wi-Fi calls), it is a separate technology that only works on 4G networks and requires support from both the carrier and the smartphone.

How do I know that VoLTE works? The Xiaomi Redmi notification bar will show the corresponding icon (usually VoLTE, HD or 4G+ next to the network indicator). If there is no icon, but the function is activated in the settings, check the support with your carrier (more on this below).

2.What does the VoLTE icon look like on Xiaomi Redmi

The appearance of the VoLTE indicator depends on the version of the MIUI and the model of the smartphone.

If you don’t see any icon but are sure that VoLTE is enabled, check:

• 🔄 Reboot your smartphone — sometimes the indicator appears after the reboot.
• 📡 Make sure you are in 4G coverage area (in rural areas, VoLTE may not work).
• 📱 Update the firmware: Older versions MIUI had bugs with the icon display.

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

Activation of VoLTE on most Xiaomi Redmi smartphones takes no more than a minute. The main thing is to follow the instructions for your version of MIUI. Below is a universal algorithm for MIUI 12-14 firmware (relevant to the Redmi Note 12/11/10, Redmi 9/8 and the latest models).

Make sure that SIM-card 4G (nano-SIM)

Check the 4G network coverage in your area

Update your smartphone to the latest version of MIUI

Battery charge of at least 30% (in case of reboot)

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Step 1. Open Settings and go to SIM- section Maps and Mobile Networks (or Mobile Network on some models).

Step 2: Select your SIM- card (if there are more than one).

Step 3. In the list of options, find and select:

• 4G (preferably)/LTE – if there is no such item, look for 4G+/LTE+.
• VoLTE is enabled – on some firmware it is a separate switch.

Step 4: Save the settings and restart the smartphone. Once activated, the VoLTE icon should appear on the notification panel.

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If you don't have VoLTE in your settings, try entering ##4636## in the Phone app, then select Phone Information → Set preferred network type → LTE only. This force activates 4G- mode.

For models with MIUI 11 and older: The path may be different.

Settings → SIM- Maps and Mobile Networks → [Select SIM] → Enable VoLTE

⚠️ Warning: Some Redmi firmware (especially global versions) have VoLTE hidden. To unlock it, you may need to change region to India in settings (Settings → Additional → Region).

4.What operators in Russia support VoLTE in 2026

Not all Russian operators provide VoLTE service, and where it is available, restrictions may apply by region or tariff.

How to check your carrier’s VoLTE support?

1. Call the short number: MTS: *111*525# Beeline: *110*180# MegaFon: *558#

Or visit the official website of the operator and enter your number in the section "Service Check".

⚠️ Warning: Even if your carrier supports VoLTE, the feature may not work with virtual SIM (eSIM) or old USIM- cards (released before 2020).

5.Why VoLTE doesn't work on Xiaomi Redmi: Common issues

If you have enabled VoLTE in the settings, but the icon does not appear, and calls are in normal mode, the reasons may be as follows:

• 📵 No coverage 4G: VoLTE only works on LTE networks. Check the network indicator - if 3G or E is on, the function will shut down automatically.
• 🔄 Settings Failure: Network settings reset sometimes helps. Go to Settings → System → Settings reset → Mobile network settings reset.
• 📱 Outdated firmware: On MIUI older than 11, VoLTE may not be available. Update the software via Settings → About Phone → System Update.
• 🚫 Operator-Blocked: Some tariffs (e.g. corporate or special offers) do not support VoLTE.
• 🔧 Hardware Restrictions: On Cheap Models (Redmi) A1, Redmi 7A) there may be no support for VoLTE at iron level.

How do you diagnose the problem?

1. Make sure to Settings → SIM- Cards → Network type is selected by 4G (LTE).
2. Check if the VoLTE icon appears in manual network mode (select the operator manually in the settings).
3. Try inserting the SIM- card into another smartphone with VoLTE (like an iPhone or Samsung) – if it works, the problem is with Xiaomi settings.

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If after all the manipulations VoLTE did not work, contact the support Xiaomi with error logs (they can be obtained through the application Service tests in Settings → About phone → All settings → Service tests).

6. VoLTE vs VoWiFi: What's the difference and what's better

In addition to VoLTE, Xiaomi Redmi can also have VoWiFi (wi-fi calling) features, which are often confused, but they do different things:

When to use VoWiFi instead of VoLTE?

• 🏠 You are in a poor coverage area 4G but there is stable Wi-Fi (e.g. in the basement or outside the city).
• 🌍 Travel abroad where roaming 4G is expensive and Wi-Fi is available for free.
• 📵 The operator does not support VoLTE in your region.

How to turn on VoWiFi on Xiaomi Redmi:

1. Go to Settings. → SIM-maps and mobile networks.
2. Select your SIM- card → Wi-Fi calls.
3. Activate the switch and confirm the connection.

⚠️ Warning: When using VoWiFi abroad, the operator may apply the tariff as for international calls, even if you call on Wi-Fi.

7.Does VoLTE affect battery consumption and traffic?

One of the common questions is, "Will VoLTE run the battery faster or eat the internet?" The answer is no, but with reservations.

Battery consumption: VoLTE does not increase energy consumption compared to conventional calls. On the contrary, since there is no switch between 4G and 3G, the smartphone spends less resources on reconnecting. However, if your region has a weak 4G signal, the communication module can run at increased power, which will increase consumption.

Traffic consumption: VoLTE calls don't waste your Internet packet -- they go through a separate channel on the carrier's network. But if you use mobile Internet (like surfing the network) at the same time, the traffic will be spent as usual.

Compared to VoWiFi: Wi-Fi calls can consume your home or office network, but this is usually negligible (about 1-2 MB per minute).

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To extend battery life with a weak 4G signal, turn on Traffic Saving mode in the SIM- card settings. This will limit background activity, but will not affect VoLTE.

FAQ: Frequent questions about VoLTE on Xiaomi Redmi