VoLTE on Xiaomi Redmi: A Complete Guide to Setup and Use

Have you ever noticed on your Xiaomi Redmi screen that VoLTE is next to the network indicator? Or suddenly you find that while you're talking, the Internet is still working, even though it hasn't been before? It's no coincidence that your smartphone supports technology that dramatically changes the quality of mobile communication. But what is VoLTE, why does it appear on Redmi and how to set it up correctly? In this article, we'll go through everything from basic principles to hidden features that the manufacturer doesn't always advertise.

Many users mistakenly think that VoLTE is just “enhanced connectivity,” but it’s actually an entire ecosystem that affects network connectivity, voice quality, and even battery consumption. Especially for the low-end and mid-end Xiaomi Redmi models, where every megabyte of traffic and percentage of charge counts. We’ll tell you which Redmi models support VoLTE, how to check if it’s on your device, and what to do if the feature suddenly disappeared after the MIUI update.

You will also learn why carriers sometimes block VoLTE even on supported phones, how to circumvent these restrictions in legal ways, and what hidden MIUI settings will help stabilize the function. Don't miss the section comparing VoLTE and regular calls - there are unexpected facts about the difference in power consumption and reliability of the connection!

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

VoLTE (Voice over LTE) is a fourth-generation (4G LTE) voice technology, not traditional 2G/3G channels, as it used to be. The main advantage is that your Xiaomi Redmi can call and use mobile Internet simultaneously without switching between networks, but this is only the tip of the iceberg.

In practice, VoLTE means:

• 📞 Clean voice without noise and interference – the technology uses codec HD Voice, which transmits sound in the range up to 7 kHz (vs. 3.5 kHz in conventional calls).
• ⚡ Instant connection – the time of setting the call is reduced by 5-7 second 1-2.
• 📶 Stable signal – even with weak coverage 4G The call will not stop because the network prioritizes voice traffic.
• 🔋 Battery savings – the phone doesn’t waste energy switching between the two 3G and 4G.

For Xiaomi Redmi owners, this is especially true because low-end models often suffer from weak antennas or unoptimized power consumption. VoLTE partially solves these problems by using network resources more efficiently. For example, on the Redmi Note 10 Pro with activated VoLTE, battery life for active calls is increased by 15-20% compared to 3G mode.

⚠️ Note: Not all operators support VoLTE at all rates. for example, Tele2 may restrict the feature for prepaid customers, and MTS may require a special option!

What Xiaomi Redmi models support VoLTE?

VoLTE technology is available on most modern Xiaomi Redmi smartphones, but there are nuances. First, support depends on the processor: Qualcomm Snapdragon chips (400, 600, 700, 800) and MediaTek Helio (G-series and higher) are usually compatible, but older Snapdragon 410/425 or Helio A22 may not support the function at the software level.

Second, even if the hardware allows, the manufacturer sometimes blocks VoLTE in the firmware for certain regions, for example, Redmi 9A in the global version (MIUI Global) supports VoLTE, but in the version for India (MIUI India) does not.

To find out if your Redmi VoLTE supports, follow the following steps:

1. Open the Phone app and dial ##4636##.
2. Go to the phone information section.
3. Check the VoLTE provisioned bar – if there is 1, the function is supported.

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

If your Xiaomi Redmi supports VoLTE but the feature is not activated, follow this instruction.Please note: the path to settings may vary slightly depending on the version of MIUI (12, 12.5, 13 or 14).

Method 1: Through standard settings

1. Open Settings → SIM cards and mobile networks.
2. Choose yours. SIM-card (if there are several).
3. Tap on the network type or preferred network type.
4. Choose 4G (preferably)/LTE or 4G/3G/2G (auto).
5. Go back and find the VoLTE Calls or Improved Calls option – turn it on.

Method 2: Through the Engineering Menu (if VoLTE is not displayed in the settings)

1. In the phone application, type the combination ##4636##.
2. Go to the phone information.
3. Scroll down to the Set preferred network type block.
4. Select LTE only or LTE/WCDMA/GSM auto.
5. Go back to the main engineering settings menu and find VoLTE Provisioning – activate it.

Method 3: Through settings SIM-Cards (for some operators)

Some operators (e.g. MegaFon) require additional VoLTE activation for their part.

1. Send. USSD-request *505# (for Megaphone) or *111*55# (for MTS).
2. Follow the instructions in the answer – usually you need to confirm the connection of the service.
3. Reboot the phone.

⚠️ Note: If your mobile Internet is lost or no calls are made after VoLTE is turned on, check if you have activated the service "Calls over Wi-Fi" (VoWiFi). MIUI.

Why VoLTE may not work for Xiaomi Redmi

Even if your Redmi supports VoLTE, the feature may not be activated for several reasons.

1. The operator does not support VoLTE for your tariff

Not all operators provide VoLTE at all rates, for example:

• 📱 Beeline may limit the function of corporate clients.
• 📱 Tele2 requires the connection of the option "Supercommunication" (free, but you need to activate).
• 📱 Iota automatically connects VoLTE only on tariffs with unlimited minutes.

2.Outdated MIUI firmware

In MIUI versions older than 12.0, VoLTE support is often implemented with bugs. For example, on the Redmi Note 9 Pro with MIUI 11, VoLTE calls could be interrupted after 30 seconds.

Settings → About the phone → System update

3. conflict with VoWiFi (wi-fi calls)

On some Redmi models (like the Note 10 and Note 11), simultaneous activation of VoLTE and VoWiFi causes crashes. SIM-map.

4. Incorrect APN settings

If VoLTE is turned on but calls don't pass, check the APNs:

1. Go to Settings → SIM cards and mobile networks → [your SIM] → Access Points (APN).
2. Make sure that the operator profile is selected (for example, Internet.beeline.ru for Beeline).
3. If you have multiple profiles, leave only one – sometimes an APN conflict blocks VoLTE.

VoLTE vs. regular calls: comparison on the example of Xiaomi Redmi

To see if you should bother with VoLTE settings, compare it to traditional 3G/2G calls using the Xiaomi Redmi Note 11 Pro:

Important: On a Redmi with a MediaTek processor (like the Helio G95), VoLTE can consume 5-10% more battery than on a Snapdragon, due to a less optimized modem.

Let's run a little test: if you make frequent calls in areas with unstable signals (metro, underground parking lots), try comparing the number of call breaks with VoLTE on and off. We observed that on the Redmi 9 Pro, the number of breaks is reduced by 40% when using VoLTE.

💡

If you travel abroad frequently, check if your local operator supports VoLTE for roaming customers.In Turkey, for example, Turkcell blocks the feature for foreign customers. SIM-maps, and in Thailand AIS — On the contrary, it provides it for free.

Hidden VoLTE chips on Xiaomi Redmi that you didn’t know about

Few people know, but VoLTE on Xiaomi Redmi can do more than just improve call quality.

Video calls in the standard "Phone" appendix

In the models with MIUI 13+ (For example, Redmi Note 11S) When you have active VoLTE in the Phone app, you get a video call button. The quality of the video transfer varies by operator, but it's usually a video call. 480p stable 4G-signal.

2. Accelerated connection to conference calls

If you use conferencing frequently, VoLTE reduces the time you need to connect additional subscribers from 10-15 seconds to 2-3 seconds, especially on the Redmi K50 and later.

3.Volte's Hidden Diagnostics Menu

Type in the Phone app the combination ##86583## (not working on all models) and you can see here:

• 📊 Connection quality statistics (RRC State, SINR).
• 📡 Information about current cell and signal level.
• 🔧 Codec settings (e.g, EVS super-clear).

4.Saving traffic when calling

A test on the Redmi Note 10 Pro showed that a VoLTE call lasting 5 minutes consumes ~1.2 MB of traffic, while a call via WhatsApp consumes ~2.5 MB.

💡

If you use VoLTE for international calls, check the carrier’s fares – some (such as MTS) consider such calls as “roaming data”, which can be more expensive than normal communications.

How to turn off VoLTE on Xiaomi Redmi (and why you might need it)

While VoLTE is usually useful, there are situations where it is best to turn it off:

• 🔋 Battery savings – if you are in a weak zone 4G-The phone spends a lot of energy on maintaining a VoLTE connection.
• 📵 Connection problems – some operators (such as Tele2 in remote regions) have poorly optimized VoLTE, which can cause calls to stop.
• 🛡️ Privacy – VoLTE calls are easier to listen to through vulnerabilities in the protocol IMS (relevant to corporate users).

How to disable VoLTE:

1. Go to Settings → SIM cards and mobile networks.
2. Choose yours. SIM-map.
3. Find the VoLTE Call option or Improved Calls and deactivate it.
4. Reboot the phone.

If the option doesn’t show up, try disabling VoLTE via the engineering menu:

1. Dial ##4636###.
2. Go to the phone information.
3. Find VoLTE Provisioning and turn it off.

⚠️ Note: Some Redmi models (e.g. Note) 9T) After disabling VoLTE, the option may disappear 4G In the network settings. To return it, reset the network settings (Settings) → SIM cards. → Resetting network settings).

FAQ: Frequent questions about VoLTE on Xiaomi Redmi