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

Have you ever noticed the word VoLTE in the status bar of your Xiaomi Redmi Note and wondered what it means? Or maybe the carrier offered to connect this service, but you didn't understand why it is needed? This technology is radically changing the quality of voice communication, but many users either do not know about its existence or do not know how to use it.

In this article, we will understand what VoLTE is on Xiaomi Redmi Note smartphones – from basic principles of operation to step-by-step configuration and solving typical problems. You will learn which Redmi Note models support the technology, how to activate it on different firmware (including: MIUI And we're going to see if VoLTE is really important for call quality in 2026.

If you're tired of intermittent communication, poor hearing, or long call connections, this guide will help you understand how VoLTE can solve these problems. And no, it's not just "another setup in the phone," but a real step towards a new generation of communication.

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

VoLTE (Voice over LTE) — This is a voice transmission technology over the network. 4G LTE, Not through outdated networks. 2G/3G, The main difference is that voice is transmitted as digital data packets, just like Internet traffic, which provides the necessary information:

📞 Instant connection – the call starts almost without delay (no waiting beeps").
🔊 Pure sound in HD-quality - wide frequency band (up to 7 kHz vs. 3.5 kHz in 3G) makes the voice more natural.
📶 Stable communication – fewer breaks, even if you are driving at high speed (e.g. in a car).
📱 Parallel operation of the Internet - during the call does not interrupt mobile traffic (you can use messengers or cards).

For owners of Xiaomi Redmi Note VoLTE is especially relevant for three reasons:

Redmi Note models often use common antennas for the 4G and 3G. Without VoLTE, the phone has to switch to the 3G When you call, it slows down the internet.
V 2026 year many operators (for example, MTS, Beeline, Television)2) shut down 2G/3G favorably 4G/5G. Without VoLTE, calls may just stop working.
ViLTE technology (video calls on the Internet) 4G) and VoNR (calls on the phone) 5G) They're built on VoLTE, and without VoLTE, you can't use those features in the future.

Important: Starting with the Redmi Note 10 (2021), all models in the lineup officially support VoLTE, but older devices (such as the Redmi Note 8 or Note 9) may require manual activation or firmware updates.

📊 You’ve already used VoLTE on your Xiaomi Redmi Note?

Yeah, he did it himself.

Yes, the operator automatically connected

No, I don't know how to turn it on.

No, my phone doesn't support.

I don't know what it is.

What Xiaomi Redmi Note models support VoLTE?

Not all Redmi Note smartphones out of the box can work with VoLTE. Here's the full support table by generation (data relevant for the new model). MIUI 14 and HyperOS at the beginning of 2026):

Model	Support for VoLTE	Notes
Redmi Note 12/12 Pro/12 Pro+	✅ Yes.	It works out of the box on all operators. It supports VoNR. 5G).
Redmi Note 11/11 Pro/11S	✅ Yes.	Requires an update to MIUI 13+ steady-work.
Redmi Note 10/10 Pro/10S	✅ Yes.	On some firmware you need to manually include in the settings → SIM-maps and mobile networks.
Redmi Note 9/9 Pro/9S	⚠️ Partially.	Supports, but may require a change of firmware region to India or Global.
Redmi Note 8/8 Pro/8T	⚠️ Limitedly.	It only works on firmware. MIUI 12.5+ And not with all operators.

If your model is not in the table, check VoLTE support through the official Xiaomi website or Kimovil service (enter the model and see the "Network" section).

⚠️ Note: On Redmi Note 7 and older, VoLTE may not work due to an outdated modem. Attempts to turn it on via the engineering menu (#4636##) often lead to communication failures.

Also, keep in mind that VoLTE support depends on:

📡 Telecom operator – not everyone provides the service (e.g., Iota still does not support VoLTE).
📋 Tariff plan – sometimes you need to connect an option (free or for a fee).
🌍 Firmware region - on Chinese versions MIUI VoLTE may be disabled.

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

Activation of VoLTE on most Redmi Note models takes less than a minute.

☑️ Preparation for the inclusion of VoLTE

Make sure that SIM-card 4GUpdate the firmware to the latest versionCheck the balance (some operators have paid connection)Stay in the coverage area 4G

Done: 0 / 4

Open the Settings. → SIM-maps and mobile networks.
Choose yours. SIM-card (if there are several).
Find VoLTE (or VoLTE calls, Improved Calls)
Activate the switch. If there is no point, see "What to do if VoLTE is not turned on."
Reboot your phone (required!).

After turning on the status bar next to the network indicator, the inscription VoLTE or HD. To check that the technology works:

Call another phone and evaluate the quality of the connection.
When calling, try opening YouTube – if the video is loading, VoLTE is active.
Dial it. USSD-check-in code: MTS: *111*525# Beeline: *110*789# MegaFon: *105*804# Television2: *155*1#

Note for two SIM-On Redmi Note with two slots, VoLTE usually only works on one. SIM-card (the one in the slot) SIM To reassign, move the cards in places or use the Double settings 4G VoLTE (not available on all models).

💡

If after turning on VoLTE mobile Internet disappeared, try to manually select a network. 4G in settings (Network type) → Only LTE).

Why VoLTE doesn’t work for Xiaomi Redmi Note: 7 reasons and solutions

If you have enabled VoLTE but it is not activated or disappears, the problem may lie in one of these points:

Problem.	Reason.	Decision
There is no "VoLTE" in the settings	Outdated firmware or regional version MIUI.	Update the program or change the region to Global/India through settings → The phone. → Version. MIUI (slip 7 once).
VoLTE is turned on but does not work	The Operator does not support the service or is not activated SIM-map.	Call the operator or check the fare. For example, Tele2 VoLTE only works on the My Tele2 and My Talk rates.
VoLTE is constantly disappearing.	Weak signal. 4G or conflict with Wi-Fi Calling.	Turn off Wi-Fi Calling in the settings SIM-Change your location or map (VoLTE requires stable location) 4G).
After the update, VoLTE stopped working.	Reset network settings or firmware bug.	Reset network settings (Settings) → System system → Reset → Reset network settings) or roll back to the previous version MIUI.

If none of these methods worked, try forcing VoLTE to turn on through the engineering menu:

Open the Phone app and dial ##4636##.
Select Phone Information.
Scroll down to Set your preferred network type.
Select LTE only or LTE/WCDMA.
Return and turn on VoLTE provisioned (if any).

⚠️ Warning: Changes to the engineering menu may disrupt the network. If the phone stops catching the network after manipulation, reset (Settings) → System system → Reset → Resetting all settings).

What if after turning on VoLTE phone became faster discharge?

VoLTE can actually increase battery consumption slightly (in the case of a 5-10%), The phone is constantly connected to 4G. To reduce consumption: 1. Turn off VoLTE when you don’t call (for example, at night). 2. Activate the energy saving mode for SIM-maps (Settings) → Battery → Energy conservation for SIM). 3. Update the firmware - in new versions MIUI/HyperOS Optimized battery consumption with VoLTE.

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

Many people confuse VoLTE and Wi-Fi Calling, although they are different technologies.

Parameter	VoLTE	Wi-Fi Calling
Requires a mobile network	✅ Yes (4G)	❌ No (works over Wi-Fi)
Quality of communication	🔊 HD (up to 7 kHz)	🔊 It depends on Wi-Fi (maybe better or worse)
Working in roaming.	❌ Only with operator support	✅ Yes (if included)
Battery consumption	🔋 Medium.	🔋 Low (if Wi-Fi is stable)
Support for Redmi Note	✅ Most models	⚠️ New (starting with Redmi Note 10)

When to use what?

📶 VoLTE – if you have stable 4G You often call on the go (in the car, transport).
📶 Wi-Fi Calling – if you are in a poor coverage area (such as in a basement or out of town) but have good Wi-Fi.

On the Xiaomi Redmi Note, you can include both technologies at the same time:

Activate VoLTE (as described above).
Then enable Wi-Fi Calling in Settings → SIM-maps and mobile networks → Wi-Fi Calling.
The phone will automatically switch between VoLTE and Wi-Fi depending on the signal.

Important: If VoLTE and Wi-Fi Calling are enabled at the same time, Wi-Fi is given priority. To force VoLTE, turn off Wi-Fi Calling.

💡

On the Redmi Note. 12 Pro+ VoLTE and Wi-Fi Calling work in parallel without conflict, whereas on the Redmi Note. 9/10 There may be problems with simultaneous use.

How VoLTE affects the battery and performance of the Xiaomi Redmi Note

One of the common myths is that VoLTE is "battery-eating," and it really depends on the firmware implementation and the model of the phone.

Battery consumption:

🔋 On the Redmi Note. 12/11 HyperOS VoLTE increases the cost of ~3-5% per day (according to GSMArena tests).
🔋 On older models (Redmi Note) 8/9) expenditure may increase 10-15% because of an unoptimized modem.
🔋 If the VoLTE is constantly switching to 3G (weakly 4G), battery consumption will increase 20-30%.

Productivity:

📈 VoLTE does not affect the speed of the phone, as it uses a separate modem processor.
📈 Against the background of a call on VoLTE, you can run games or heavy applications - there will be no delay (unlike the other two). 3G).
📉 If you play an online game during a VoLTE call (for example, PUBG Mobile, may experience increased ping due to network load.

How to reduce the impact of VoLTE on the battery:

Turn off VoLTE when you don’t call (for example, overnight).
Use the Energy Saving Mode to SIM-maps (Settings) → Battery → Energy conservation for SIM).
Update the firmware -- in MIUI 14+ HyperOS optimized battery consumption with VoLTE.
If VoLTE is not needed all the time, turn it on only for important contacts through call settings.

Critical moment: Redmi Note 8 Pro with firmware older MIUI 12.5 VoLTE can cause Mediatek Helio processor to overheat G90T If your phone gets hot, turn off VoLTE or update the software.

The future of VoLTE: what awaits owners Xiaomi Redmi Note

VoLTE technology continues to evolve, and for Xiaomi Redmi Note users, this means several important changes:

Transition to VoNR (calls on the 5G)

📡 Starting with the Redmi Note 12 Pro+ 5G, Xiaomi adds support for VoNR, an analogue of VoLTE, but for networks 5G.
📡 VoNR provides even cleaner sound (up to 24 kHz) and minimal latency.
📡 In 2026, VoNR is testing MTS and MegaFon, but for its work you need firmware HyperOS.

2. Shutdown 2G/3G and forced transition to VoLTE

📵 K 2026 Most Russian operators plan to shut down the network 2G/3G (It has already started in Moscow and St. Petersburg).
📵 No VoLTE phones Redmi Note 8/9 They may be left without communication.
📵 Xiaomi has already released updates for older models that add VoLTE (for example, for the Redmi Note). 9S into MIUI 14).

Integration with AI messenger

🤖 HyperOS VoLTE will work together with Xiaomi AI Assistant for voice commands during a call.
💬 Support expected RCS (improved SMS) via VoLTE, which will allow you to send files and video messages without messengers.

If you are planning to use the Xiaomi Redmi Note smartphone 2-3 VoLTE will be a mandatory feature of the year:

🔄 Update the firmware to the latest version.
📋 Check your operator’s VoLTE support.
🛒 When buying a new Redmi Note, choose models with VoLTE and VoNR in specifications.

FAQ: Frequent questions about VoLTE on Xiaomi Redmi Note

❓ VoLTE paid or free?

VoLTE technology itself does not require payment, but some operators may charge a fee to connect the service (e.g. Tele2 earlier charged 50).₽). Also, VoLTE can only be available at certain rates (usually medium and high levels).

❓ Why did the mobile Internet disappear after the inclusion of VoLTE?

This is a typical problem on the Redmi Note. 9/10 double-wise SIM-Solutions: Remove them. SIM-slot-card SIM 1. In the network settings, select the mode Only LTE. Turn off the second. SIM-map (if not used) Update the firmware to MIUI 13+.

❓ Can I use VoLTE in roaming?

Yes, but with reservations: 🌍 The operator must support VoLTE roaming (check with the provider). 🌍 Redmi Note may require manual VoLTE roaming enabled in settings. 🌍 In some countries (e.g. USA, Japan) VoLTE only works with local customers. SIM-map.

❓ VoLTE and Wi-Fi Calling – Can You Use It Simultaneously?

Most Redmi Note models (except Note 12 Pro)+) The phone will use either VoLTE or Wi-Fi Calling depending on priority, to avoid problems: Turn off Wi-Fi Calling if VoLTE is more important, or vice versa, turn off VoLTE if you make frequent calls over Wi-Fi. On HyperOS (for new models), both functions can work in parallel without conflicts.

❓ How to turn off VoLTE if it interferes?

To deactivate VoLTE: Go to Settings → SIM-maps and mobile networks. Choose yours. SIM-Turn off the VoLTE call switch. Reset the phone. If the item is not on the menu, try resetting the network settings (Settings) → System system → Reset → Resetting network settings).