VoLTE icon on Xiaomi Redmi 8 Pro: decryption, configuration and problem solving

Why is the Xiaomi Redmi 8 Pro icon VoLTE on the screen and what does it mean?

You noticed on the top panel of the Xiaomi Redmi smartphone 8 Pro new icon with the inscription VoLTE or HD? This is not a system error, but an indicator of the activated voice technology of the new generation. LTE) — This is the standard for voice transmission through 4G-The network that replaced the old 2G/3G-Unlike traditional calls, where voice is transmitted over separate channels, it uses Internet protocol, which has a number of advantages.

On the Redmi 8 Pro (2019 model), VoLTE support is implemented at the hardware level, but often users are faced with the icon appearing, disappearing, or missing altogether in the status bar. The reasons may lie in the settings of the phone, as well as in the parameters of the SIM card or carrier.

• 🔍 What exactly does the VoLTE icon mean and how it differs from HD-call-up
• ⚙️ How to turn on or off technology in the settings of Redmi 8 Pro
• 📡 Why VoLTE may not work even with operator support

It's important to understand that VoLTE is not just a beautiful icon, it's a real improvement in the quality of communication. 5-7 second 1-2, The voice is clearer due to the extended frequency range (up to the 7 kahz 3.4 khz 2G). But there are nuances: for example, with activated VoLTE, calls will only pass through the phone. 4G-network, and if the coverage is weak, the smartphone can automatically switch to 3G without notice.

VoLTE vs HD-Calls: What’s the difference and why Redmi 8 Pro can display one icon, then another

Many users confuse VoLTE and HD-I'm calling you, thinking it's the same thing. HD (High Definition is the voice quality standard, and VoLTE is the voice transfer technology. On Xiaomi Redmi 8 Pro, you can see it:

• 📶 Sign "VoLTE" - active voice transmission through the 4G supportive HD-quality
• 🎤 Badge "HD" — The call is in high quality, but not necessarily via VoLTE (can be used). 3G technologic AMR-WB)
• ❌ No badges - standard voice call on 2G/3G

In practice, this means that even if you see "HD", This does not guarantee the use of 4G-For example, MegaFon and Beeline in some regions provide HD-call-in 3G, a MTS and Tele2 They're actively switching to VoLTE, and to know exactly what technology is being used, you can use the engineering menu (which we'll talk about below) or special applications like NetMonster.

Another important point is that on the Redmi 8 Pro with MIUI 11/12 firmware, the VoLTE icon may disappear after updating or resetting, which is because the default system prioritizes communication stability over quality, and if you care about voice clarity over weak signal connectivity, you'll have to manually prioritize networks.

How to enable VoLTE on Xiaomi Redmi 8 Pro: step-by-step instructions with pictures

If the VoLTE icon is not displayed, first check whether your operator supports this technology.

• 🌐 MTS – VoLTE coverage in Russia
• 🌐 Beeline - list of supported devices
• 🌐 MegaFon - instructions for setting up

If the operator supports VoLTE, follow the instructions:

1. Open Settings → SIM cards and mobile networks.
2. Choose your SIM card (if there are two).
3. Tap on Network Type (or Preferred Network Type in older versions of MIUI).
4. Set the value of 4G (preferably) or LTE/3G/2G (auto).
5. Go back and find the VoLTE Call option (or Enhanced Calls). Activate the switch.
6. Reboot your phone is a must-do step to apply the changes!

Make sure your SIM card supports 4G|

Check VoLTE coverage in your area |

Activate the option in network settings|

Reboot your smartphone |

Make a test call (the VoLTE icon should appear)

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If the icon never appeared after these actions, the problem may be:

• 🔄 Refresh your old firmware - update it MIUI last-minute
• 📱 Incompatible SIM card – replace it with USIM (universal)
• 📡 Operator restrictions – some tariffs block VoLTE

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If the settings do not include the option “Call over VoLTE”, try entering the code # #86583## in the dialer – this will open a hidden VoLTE menu (does not work on all firmware).

Compatibility of Xiaomi Redmi 8 Pro with VoLTE at Russian operators

Not all carriers are equally well supported by VoLTE on the Redmi 8 Pro. Below is the current compatibility table as of 2026.Please note that even if the carrier officially supports the technology, in some regions it may be disabled due to weak 4G coverage.

If your carrier is on the list but VoLTE is not working, contact support and check if the service is activated on your number. USSD-team *105*580# forced-on.

What to do if VoLTE doesn’t work: 5 ways to fix the problem

Even if you set it up correctly, the VoLTE icon may not appear, and let's look at the typical causes and ways to address them:

1. Update MIUI firmware On Redmi 8 Pro VoLTE only works stably on MIUI 12.0.3.0 and later. Check the relevance of the software in Settings → About Phone → System Update. If there are no updates, try installing global firmware through Fastboot.
2. Reset your network settings Go to Settings → System → Settings Reset → Reset your Wi-Fi, mobile network and Bluetooth settings. This will delete saved passwords, but often solves VoLTE issues.
3. Check it out. IMEI If IMEI If your smartphone is damaged or changed (for example, after an unofficial firmware), VoLTE will not work. IMEI If it appears as null or incorrect, recovery is required.
4. Activate VoLTE via the engineering menu Enter ##4636##, select Phone Information and find Set preferred network type. Set LTE only or LTE/WCDMA.
5. An old SIM card (especially one released before 2018) may not support VoLTE. Contact the operator's salon for a free replacement with USIM.

⚠️ Note: If after activation of VoLTE the Internet disappeared during calls, check settings Data Mode during the call in the SIM card settings!

VoLTE and battery: does the technology affect the charge consumption of the Redmi 8 Pro?

One of the common myths is that VoLTE drains the battery a lot, and it really depends on the implementation of the technology in the firmware and the quality of the 4G coverage.

• 🔋 In the stable zone 4G — energy consumption during VoLTE calls 5-10% lower than 3G, No need to switch between networks.
• 📉 In the zone of weak signal - the battery sits down faster on the 15-20%, Because the smartphone is constantly trying to hold the connection.
• ⚡ Frequent switching 4G↔3G — Maximum consumption (up to 25% per hour of conversation) as both modules are used.

On the Redmi 8 Pro with a 4500mAh battery, this means that when VoLTE is actively used in poor coverage, the phone can discharge 30-40% faster than usual.

• 🔄 Disabling VoLTE manually in settings (if the quality of communication is satisfied)
• 📶 Forced network selection 3G squatter 4G
• 🔋 Use of energy saving mode during long conversations

For an objective assessment of charge consumption, we recommend installing the AccuBattery app and comparing consumption with VoLTE and regular calls in your area.

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VoLTE is more economical 3G-Calls only when stable 4G-Otherwise, it's better to turn off the technology if it's more time than quality.

Alternatives to VoLTE: What to do if the technology is not available

If your carrier doesn’t support VoLTE or Redmi 8 Pro stubbornly refuses to enable it, there are several alternatives to improving the quality of communication:

1. Wi-Fi Calling Technology allows you to call over Wi-Fi, which is useful in areas with poor mobile coverage. On Redmi 8 Pro is included in Settings → SIM cards → Wi-Fi Calling. Supported by MTS, Beeline and MegaFon.
2. VoIP applications Services like WhatsApp, Telegram or Skype allow high-quality calls over the Internet. Minus - both interlocutors must be online.
3. 3G HD-Calls If the operator supports AMR-WB (For example, MegaFon, you can manually set the priority 3G-To do this, select from the engineering menu (#4636##) WCDMA preferred.

Also worth considering is the possibility of a change of operator, for example, Tele2 is actively developing VoLTE in regions where other operators do not already provide this service.

• 🌍 MTS coverage map
• 🌍 Beeline's coverage map

⚠️ Note: Additional rates may apply when using Wi-Fi Calling in roaming!

FAQ: Frequent questions about VoLTE on Xiaomi Redmi 8 Pro