How to completely disable Wi-Fi calls on Xiaomi smartphones: 5 working ways

VoWiFi (Voice over Wi-Fi) technology allows you to call wirelessly instead of cellular, which is convenient in areas with poor coverage of mobile carriers. However, many Xiaomi users face problems: calls are interrupted, sound is distorted, and the battery runs out faster. If you want to turn off Wi-Fi calls on your Redmi, POCO or Mi, this article will help you understand the settings of MIUI 14/15 and alternative methods.

Some carriers (e.g. MTS, Beeline, MegaFon) automatically activate VoWiFi on supported devices, which can create conflicts with other features.We will look at official ways to turn off via the phone menu, hidden settings for advanced users, as well as solutions for cases where the option is “gray” and inactive.

Before you start, make sure your smartphone is updated to the latest firmware. In older versions of MIUI (below 12.5), the settings interface may differ, and some VoWiFi features may not be available. Also check if your carrier supports the technology — if not, you don’t need to turn it off.

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1. Standard method: through settings SIM-map

The easiest method is to use the built-in MIUI options. It is suitable for most Xiaomi models, including the Redmi Note 12, POCO X5, Mi 11 and later.

Open the Settings app and go to the section SIM-maps and mobile networks. SIM-Select the one you want to turn off VoWiFi for. then find Wi-Fi Calls (can be called VoWiFi or Wi-Fi Calls).

Turn the slider to off. Some firmware will require confirmation of action — click Disable in the window that appears. After that, the Wi-Fi Call icon in the status bar should disappear.

If the option is inactive (grey), it may mean:

• 📶 Your operator does not support VoWiFi (check on the official website)
• 🔄 The phone is not updated to the current version MIUI
• 🔒 Settings are blocked by operator policies (solution – see Section 3)

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If VoWiFi calls start to stop after shutting down, try restarting your phone or resetting your network settings to Settings → Connections → Resetting your network settings.

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2. Disconnection through the engineering menu (for advanced)

If the standard method didn’t work, you can use the engineering menu (#4636##) which requires caution, as incorrect changes can disrupt the network, POCO F4).

Enter the code in the phone application:

##4636##

You'll open the Test menu. Select your phone information, then scroll down to the Wi-Fi calling block. Here you'll see the VoWiFi status for each. SIM-map.

To disable:

1. Click on the number line. SIM-map.
2. In the drop-down menu, select Disable or Disable.
3. Confirm the action and restart the phone.

⚠️ Warning: Changes to the engineering menu may cause a mobile network to malfunction. If VoWiFi is lost after the VoWiFi shutdown, reset the network settings to Settings → Connections → Resetting network settings.

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3. Solution for locked settings (operator restrictions)

Some carriers (such as Tele2 or Yota) block the ability to shut down VoWiFi at the firmware level, in which case a workaround through flight mode or disconnect Wi-Fi during calls will help.

Method 1: Automatically shutting down Wi-Fi when calling

• 📱 Go to Settings. → Annexes → Permits → Auto-start.
• 🔍 Find the Phone app and turn off auto-start.
• 📵 Install the Tasker or MacroDroid app to create the rule: “When incoming/outgoing call – turn off Wi-Fi".

Method 2: Using two methods SIM-map

If you have two-sim Xiaomi, you can transfer calls to the SIM-A map where VoWiFi is not activated:

1. B Settings → SIM-Select the main card. SIM call-in.
2. Turn off VoWiFi for the second SIM (if the option is available).

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4. Disable VoWiFi over ADB (for power users)

If previous methods have failed, you can use Android Debug Bridge (ADB), which is suitable for all Xiaomi models, but requires a computer and basic command line knowledge.

Step 1: Preparation

• 🖥️ Install. ADB Tools on PC (download from the official website).
• 📱 On the phone, activate the debugging by USB In Settings → The phone. → Version. MIUI (Click 7 times on the line with the version, then return to Additional Settings → For developers).
• 🔌 Connect your phone to your PC through USB (Select the File Transfer Mode).

Step 2: Execution of commands

Open the command line (Windows) or terminal (macOS/Linux) and type:

adb devices

Make sure your Xiaomi is listed. Then do:

adb shell settings put global wifi_calling_enabled 0

For the second. SIM-cards (if any):

adb shell settings put global wifi_calling_enabled 1 0

Once you have completed the commands, restart the phone. This method disables VoWiFi at the system level, but can reset after the MIUI update.

⚠️ Attention: Misuse of the right ADB If you are not sure about your actions, use other methods from this article.

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5 Problems after VoWiFi shutdown and their solutions

Sometimes, when VoWiFi is deactivated, users will face new problems, and let's look at the most common ones and how to fix them.

Problem 1: Mobile phone service is missing

If after the shutdown of VoWiFi phone stopped catching the network:

• 🔄 Reset the device.
• 📡 Manually select the operator in Settings → SIM-map → Network Selection (Disable Automatically).
• 🔧 Reset network settings: Settings → Connections → Resetting network settings.

Problem 2: Calls don’t go through Wi-Fi, but the icon is still there

This could mean that the settings didn't apply.

1. Turn on and off VoWiFi again.
2. Update the firmware to the latest version.
3. Contact the operator to deactivate the service on their side.

Problem 3: Fast battery discharge

If after turning off VoWiFi battery discharges faster, check:

• 🔋 Background processes in Settings → Battery → Battery utilization.
• 📶 Mobile network signal – weak signal increases power consumption.
• 🔄 Restart your phone and monitor your consumption throughout the day.

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If the problems persist after all the manipulations, it may be the firmware’s fault. Try reflashing the phone to a global version of MIUI (e.g. xiaomi.eu) – it often lacks operator restrictions.

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6. VoWiFi Alternatives: How to Make Internet Calls Without Problems

If you've turned off VoWiFi but want to keep your phone online, consider alternative services, which are often more stable and independent of operator settings.

1. VoIP Call Applications

• 📞 WhatsApp – free calls over the Internet (requires an installed application from the interlocutor).
• 💬 Telegram – supports voice and video calls with encryption.
• 🎧 Skype or Zoom – suitable for long conversations.

2. Virtual numbers

Services like Google Voice or Dingtone allow you to get an additional number for calls over Wi-Fi/4G.

• 🌍 Works in any country.
• 🔒 It does not depend on the operator.
• 💰 Often cheaper than international calls.

3. Set up redirection

If you want to avoid missing calls, set up a redirect to another number:

1. Open the phone → Settings → Call forwarding.
2. Please indicate the number to which the calls will be redirected.
3. Activate the option Redirect when unavailable.

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7. Frequent questions about VoWiFi on Xiaomi

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8 Conclusion: Which way to choose?

The choice of method depends on your Xiaomi model, MIUI version and operator limitations:

• 📱 For most users, a standard disconnection in the settings is suitable SIM-maps (section 1).
• 🔧 If the option is blocked, try the engineering menu or ADB (section 2-4).
• 🌍 For stable internet calls, consider alternative services (Section 6).

If none of these methods worked, contact your carrier’s support – VoWiFi may be activated on their side and requires manual shutdown in your personal account.

Remember that VoWiFi is useful in areas with poor coverage, but it can be a problem with a stable signal.