How to enable Wi-Fi Calling on Xiaomi: full instructions with photos and tips

Wi-Fi Calling Technology Allows You to Call and Send SMS over the Internet, even if the mobile network is absent or weak, this is especially true for owners of Xiaomi, Redmi and smartphones. POCO, They often have problems with coverage in basements, subways or country houses, but not all users know how to activate this feature correctly — many people face errors like "Not supported by an operator" or "No network».

In this article, we will take a step-by-step guide to connecting Wi-Fi Calling on any Xiaomi device (including models from 2020-2026), tell you how to check your compatibility. SIM-We will give you tips on how to fix typical problems, and we will pay special attention to the nuances for the Redmi Note 12, POCO X5 Other popular models where the settings may differ.

What is Wi-Fi Calling and Why You Need It on Xiaomi

Wi-Fi Calling (or VoWiFi) is a technology that allows you to make voice calls and send messages. SMS-Wi-Fi instead of traditional mobile towers, the main advantage is stable communication where the operator signal is weak or absent at all.

For Xiaomi owners, this is especially useful for several reasons:

• 📶 Best coverage in places with poor signal (basements, elevators, remote areas).
• 💰 Savings on roaming – many operators allow calling over Wi-Fi abroad at home rates.
• 🔋 Less battery consumption because the phone doesn’t waste energy searching for the network.
• 📞 Clearer sound thanks to digital voice transmission (codecs) HD Voice).

However, there are limitations: for example, not all operators support this feature, and some Xiaomi models (especially budget ones) may require manual activation via an engineering menu, and 4 GHz or 5 GHz – public hotspots (such as in a cafe) can block such calls.

What Xiaomi models support Wi-Fi Calling

Wi-Fi Calling is available on most Xiaomi smartphones released after 2019, but there are important nuances.First, support depends not only on the model, but also on the firmware version. MIUI (Second, some carriers (such as Tele2) may block VoWiFi on certain models.

Here is a list of popular devices with confirmed support:

To find out exactly if your smartphone supports Wi-Fi Calling, follow the following steps:

1. Open the settings → About the phone → version of MIUI.
2. If version 12.5 or newer, the feature is likely to be there.
3. Check for Wi-Fi Calling in Settings → SIM-maps and mobile networks.

Preparation before connection: verification SIM-card-and-operator

Before you enable Wi-Fi Calling on Xiaomi, make sure your carrier and your phone are ready to use it. SIM-In Russia, in 2026, VoWiFi officially work with the following providers:

• 📡 MTS supports all Xiaomi models with MIUI 12+. Required. SIM-Nano-SIM (not eSIM).
• 📡 Beeline – works on most devices, but may need to be replaced SIM new (USIM).
• 📡 MegaFon supports Wi-Fi Calling, but only for subscribers with All-Inclusive tariffs and above.
• 📡 Tele2 – limited support (only some Xiaomi and Redmi models).

To check the compatibility:

1. Make sure you are active. SIM-Card (not blocked, not expired).
2. Call the operator and check if Wi-Fi Calling is supported for your tariff.
3. If the operator has confirmed support but the feature doesn’t appear in the settings, try restarting the phone or updating the firmware.

⚠️ Note: If you use two of these SIM-Wi-Fi Calling can only work on the main (slot 1). On some Xiaomi models (for example, Redmi Note 11) you will have to choose a priority. SIM network-setting.

Step-by-step: how to enable Wi-Fi Calling on Xiaomi

If your smartphone and carrier support the technology, follow this instruction. MIUI, The overall pattern is the same for all models.

Step 1. Open the settings. SIM-map

Go to Settings. → SIM-maps and mobile networks. SIM, Choose the one you want to activate Wi-Fi Calling for.

Step 2. Find the Wi-Fi Calling section

On the menu. SIM-Find the Wi-Fi Calling (can be called a Wi-Fi or VoWiFi call) if it is not available, update your firmware or check for operator support.

Step 3: Activate the function

Move the slider to the position On. The system can request confirmation - press OK.

Step 4. Connect to Wi-Fi

Make sure your phone is connected to a stable Wi-Fi network (preferably a home network, not a public one) and the status bar will display a Wi-Fi Calling or VoWiFi icon.

Step 5. Check the work.

Make a test call. If you're set up correctly, the top panel will display a Wi-Fi icon during the conversation.

If the calls do not go away after activation, try:

• 🔄 Reboot the phone.
• 📶 Switch to another Wi-Fi network (e.g., from 5 GHz to 2.4 GHz).
• 📱 Update the firmware through Settings → The phone. → Updating the system.

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In some models (for example, POCO F3) After turning on Wi-Fi Calling, mobile Internet may disappear. In this case, turn off the function "High speed" LTE" mobile network settings.

The solution to the problems: why Wi-Fi Calling does not work for Xiaomi

Even if you've done all the steps right, you can make mistakes, and let's look at the most common problems and how to fix them.

1. The error "Not supported by the operator"

This means that your rate or SIM-The card is incompatible with VoWiFi:

• 📞 Call the operator and request Wi-Fi Calling activation for your number.
• 🔄 Replace. SIM-map (USIM) cameraman.
• 💳 Check if the feature is blocked on your tariff (for example, MegaFon it is available only at expensive rates).

2.There is no Wi-Fi Calling item in the settings

Reasons:

• 📱 Outdated firmware - update MIUI last-minute.
• 🛠️ The phone model does not support the function (check the table above).
• 🔧 The function is hidden – try to enable it through the engineering menu (instruction below).

3. Calls don't pass, even though Wi-Fi Calling is enabled

Possible causes and solutions:

• 🌐 Wi-Fi network problems – reconnect or change router.
• 🔒 Firewall or antivirus block VoWiFi – temporarily turn them off.
• 📵 Flight mode or energy saving interfere with work - turn them off.

⚠️ Note: If after activation of Wi-Fi Calling stopped coming SMS, Check your message settings. Some carriers (like Beeline) require separate Wi-Fi activation. SMS private-room.

Wi-Fi Calling on Xiaomi abroad: roaming and features

One of the main features of Wi-Fi Calling is the ability to call at home rates even when roaming, but there are nuances that Xiaomi owners should know about:

1. Support for operators abroad

Not all foreign operators are compatible with Russian SIM-And these are VoWiFi cards:

• ✅ In Turkey (Turkcell, Vodafone) and the UAE (Etisalat) Wi-Fi Calling works with MTS and MegaFon.
• ❌ In Thailand (AIS, TrueMove and Viettel feature may be blocked.

2. Roaming settings

Before the trip:

1. Make sure that data roaming is enabled (Settings) → Mobile network → Data roaming).
2. Turn off automatic network selection and select the operator manually.
3. Check that Wi-Fi Calling is enabled for the main SIM-map.

3. Connection problems

If Wi-Fi Calling does not work in roaming:

• 🔄 Reboot your phone after arriving in another country.
• 📶 Connect to local Wi-Fi (e.g. at a hotel).
• 📞 Call the operator and check if the function is blocked for your direction.

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In roaming, Wi-Fi Calling can be slower due to delays in international networks. For important calls, it is better to use instant messengers (WhatsApp, Telegram) or local ones. SIM-map.

Xiaomi Wi-Fi Calling Alternatives: What to Do When Features Are Not Available

If your smartphone or carrier doesn’t support VoWiFi, there are a few alternative ways to make calls over the internet:

1. Wi-Fi calling applications

• 📱 Google Voice – Free calls to the US/Canada, paid calls to other countries.
• 📱 Skype – calls to mobile and landline phones (paid).
• 📱 Zoom/Teams — wifi-based.

2. Virtual operators (MVNO)

Some virtual carriers (such as Tinkoff Mobile or SberMobile) offer cheap VoWiFi-enabled rates even on older phones.

3. Voice-call messengers

• 💬 WhatsApp – Free Calls Between App Users.
• 💬 Telegram – voice chats with good quality of communication.
• 💬 Viber – calls to mobile via Viber Out (paid).

4. Rooting and custom firmware

For advanced users: Installing custom firmware (like LineageOS) can add Wi-Fi Calling support to non-consensual models, however, this requires unlocking the bootloader and risks voiding the warranty.

⚠️ Note: Using third-party calling apps (such as DingTone) may result in blocking SIM-- The operator's credit card for suspicious activity, preferring official decisions.

FAQ: Answers to Frequent Questions about Wi-Fi Calling on Xiaomi