How to turn on VoLTE on Xiaomi: full instructions with photos and tips

Internet calls instead of traditional 2G/3G networks are not fiction, but reality available to owners of Xiaomi, Redmi and POCO. VoLTE (Voice over LTE) technology allows you to talk in high quality, connect faster and even save battery power. But many users face the problem: the function is either missing in the settings or does not work after activation. In this article, we will discuss all the ways to enable VoLTE on Xiaomi smartphones, from checking support to manually configuring APN.

While most modern Xiaomi devices support VoLTE out of the box, carriers don’t always automatically plug this option in, sometimes requiring firmware updates, changing tariffs, or even manually prescribing network settings, and we’ve tested the instructions on models from the Redmi Note 10 Pro to the Xiaomi 13 Ultra — and are ready to share working solutions.

If you're still calling through 3G, The top corner of the screen is only lit. 4G without a handset icon, this article is for you, and let's start with the most important thing: checking your device's compatibility and SIM-map.

1. Verify VoLTE support for your Xiaomi

Before you try to turn on VoLTE, make sure your smartphone and SIM-The map actually supports this technology, and even if you have a switch in the settings, activating it might not work.

How to check hardware support:

  1. Go to the GSMArena website.
  2. Enter your Xiaomi model (e.g. Redmi Note 12 Pro+ 5G).
  3. In the Network section, find the VoLTE bar – if there is one, the device is compatible.

For models older than 2018 (e.g., Redmi 5 or Mi A2), VoLTE can only work after upgrading to MIUI 12+. If your smartphone Released is before 2017, chances are the technology is not supported at the hardware level.

Compatibility of operators in Russia and CIS (2026):

  • 📶 MTS supports VoLTE at all tariffs from 2020.
  • 📶 Beeline - works only for subscribers with tariffs "Everything" and "Unlimited".
  • 📶 MegaFon - requires the connection of the option "Voice to" 4G" (free-for-free).
  • 📶 Tele2 – VoLTE is available only in Moscow, St. Petersburg and the regions with coverage 4G 800 MHz.
  • 📶 Yota – Supports, but may require replacement SIM-map.

Important: If you use a virtual operator (Tinkoff Mobile, SberMobile, LocoMobile), VoLTE will most likely not work – these companies do not have their own 4G infrastructure.

📊 What kind of operator do you have now?
MTS
Beeline
MegaFon
Tele2.
Yota
Other

Preparation SIM-Cards: VoLTE will not work without it

Even if a smartphone supports VoLTE, an old SIM card can be a hurdle, with operators gradually abandoning outdated form factors (mini-SIM, micro-SIM) in favor of USIM-enabled nano-SIM.

Signs of incompatible SIM-map:

  • 🔴 There is no option for “VoLTE” or “Improved Calls".
  • 🔴 When VoLTE is enabled, calls do not pass (discharge immediately).
  • 🔴 The network status is displayed only 3G or+, despite the cover 4G.

How to check and replace SIM-map:

  1. Call your operator's short number: MTS: *111*8# Beeline: *110*180# MegaFon: *105*8# Tele2: *155*1#

USIM

SIM

To replace, visit the communication salon (free of charge) or order courier delivery through the operator's application.

⚠️ Attention: After replacement SIM-card may require re-activation of services (internet, roaming). APN Take a picture of them before replacing them.

💡

If you travel frequently, ask the operator for a multi-format SIM-map (nano) + This will eliminate the need for physical replacement when moving to another region.

3. Step-by-step instructions: how to enable VoLTE on Xiaomi

If the smartphone and SIM-map compatible, we're going to set up. The interface may vary slightly depending on the version. MIUI, But the general logic is the same.

Method 1: Through the basic settings (for MIUI 12–14)

  1. Open the Settings. → SIM-maps and mobile networks.
  2. Choose yours. SIM-card (if there are several).
  3. Tap by Network Type (or Preferred Network Type).
  4. Choose 4G (preferably) or LTE.
  5. Go back and find the VoLTE switch (or Improved Calls, Voice over LTE).
  6. Activate the slider. If it's not there, see manual settings.

Method 2: Engineering menu (for older models)

  1. Open the Phone app.
  2. Enter the combination: ##4636###.
  3. Go to the phone information.
  4. Scroll down to Set your preferred network type.
  5. Select LTE only or LTE/UMTS auto.
  6. Go back to the basic settings and check for the VoLTE option.

Method 3: Manually configure APN (if VoLTE is not activated)

  1. Go to Settings. → SIM-maps and mobile networks → [Yours. SIM] → Access points (APN).
  2. Click on the current APN profile (usually the operator name).
  3. In the APN Type field, add a comma:,ims.
  4. Save and restart your smartphone.
  5. 🔹 If it does not help, contact the operator with a request to tie IMS to your room.

Problem 3: VoLTE works, but there is no internet at the time of the call

  • 🔹 This is normal for some operators (e.g. Tele2).
  • 🔹 If you had internet before, check your settings. APN (Type of default, supl, ims must be specified).

What if there are no updates, but VoLTE is not working?

  • 🔧 Install manual firmware (e.g. Xiaomi.EU) – they often add VoLTE support for regions where it is not officially available.
  • 🔧 Use it. MIUI bootloader to find the latest stable version for your model.