Disconnect VoWiFi on Xiaomi Mi 10T: all manner of

Xiaomi Mi 10T — One of the brand's flagship smartphones that supports VoWiFi (Voice over Wi-Fi), a feature that allows you to make calls over Wi-Fi, which is especially useful in areas with poor mobile coverage, but not all users want to use it: Some people have problems with communication, some people notice increased battery consumption, and some just prefer classic calls through the operator’s network.

In this article, we will discuss all available ways to disable VoWiFi on Mi. 10T — From standard settings to hidden options in the engineering menu, you will also learn why calls can temporarily disappear after the feature is turned off and how to fix it. If you notice that your smartphone spontaneously connects to VoWiFi or this option interferes with the work of other services, our instructions will help solve the problem.

What is VoWiFi and why turn it off on Xiaomi Mi 10T

VoWiFi (or Wi-Fi Calling) technology allows voice traffic to be transmitted over the Internet instead of traditional mobile networks. 10T This function is activated by default in most operators (MTS, Beeline, MegaFon, Tele2:

• 📶 Stable communication in places with a weak signal of the cellular network (basements, remote areas).
• 🔋 Saving battery power – in theory, since the smartphone does not waste energy on finding the network.
• 💰 Free Wi-Fi calls (unless the operator charges them separately).

However, in practice, the users of the Mi 10T frequently encounter problems:

• 📞 Call breaks when switching between Wi-Fi and mobile network.
• 🔄 Delays in connection (up to 5-10 seconds of silence at the beginning of the conversation).
• 📉 Increased battery consumption due to constant Wi-Fi activity.
• 🚫 Conflicts with VPN or corporate networks (calls blocked by firewalls).

Another reason to turn off VoWiFi is privacy, and Wi-Fi calls can go through carrier servers or third-party nodes, which theoretically increases the risk of interception. 10T For business negotiations, it is better to return classic calls to the GSM.

Method 1: Disable VoWiFi through standard settings

The easiest method is to deactivate the function in the settings menu Xiaomi Mi 10T. This method works on all versions. MIUI (including MIUI 12/13/14) It does not require the rights of a superuser.

Instructions:

1. Open the Settings app (the gear icon on the home screen).
2. Go to section. SIM-maps and mobile networks.
3. Choose yours. SIM-card (if two of them).
4. Call on the Wi-Fi (or VoWiFi) item.
5. Move the slider to the off position.

If the Wi-Fi Calls item is not on the menu, it means:

• 📱 Your carrier does not support VoWiFi (check on the provider’s website).
• 🔄 On the smartphone outdated firmware (update) MIUI through settings → The phone. → Updating the system).
• 🛠️ The function is hidden in the engineering menu (see Method 3).

Important! After the VoWiFi shutdown, the smartphone may temporarily lose communication (up to 1-2 minutes). This is normal: the system re-registers in the operator's network. If the connection does not recover, restart Mi. 10T or turn on/off flight mode.

Method 2: Disconnecting through USSD-operator

Some operators allow you to control VoWiFi directly through the USSD-This is convenient if the settings of the smartphone do not allow you to disable the function (for example, due to the locking by the operator).

Instructions:

1. Open the Phone app.
2. Go to the keyboard tab (to dial a number).
3. Enter. USSD-team for your operator:

After you type in the command, press the call button. In a few seconds, it will come. SMS with a confirmation of the shutdown, if the team didn't work:

• 📵 Make sure that SIM-The card is active and connected to the network.
• 🔄 Try to enter the command in mode Only 3G/4G (turn off Wi-Fi).
• 📞 Contact the operator for support – VoWiFi may be tied to the tariff.

⚠️ Attention! USSD-If VoWiFi is not disabled after you enter the command, check the current instructions on your operator's website.

Method 3: Disconnect via the engineering menu (for experienced)

If VoWiFi is not turned off by standard methods, you can use the engineering menu Xiaomi Mi 10T. This method requires caution, as incorrect settings can disrupt the network.

Instructions:

1. Open the Phone app.
2. Enter the code to log in to the engineering menu: ##4636###
3. In the menu that opens, select Phone Information (or Phone Information).
4. Scroll down to the Wi-Fi Calling block.
5. Click on the drop-down list and select Disable.
6. Return to the main menu and restart your smartphone.

If there is no Wi-Fi Calling item in the engineering menu, try the alternative code:

##869434##

Warning: Changes to the engineering menu may result in:

• 📵 Network loss (resettings will be required).
• 🔋 Increased battery consumption (if you incorrectly configure the radio module parameters).
• 🚨 Blocking IMEI (In rare cases, if critical parameters are changed).

Problems after VoWiFi shutdown and their solutions

Disconnect VoWiFi on Xiaomi Mi 10T Usually goes away without consequences, but some users face side effects:

If after turning off VoWiFi you notice that calls have begun to break, check:

• 📶 Network signal strength – perhaps weak coverage in your area.
• 🔄 Call forwarding settings (sometimes VoWiFi conflicts with them).
• 📱 Updates MIUI — In new versions of firmware, communication bugs can be fixed.

💡

If after turning off VoWiFi you notice that the smartphone has become faster discharge, check the activity of the radio module in the battery settings (Settings) → Battery. → If the Android System or Phone Services module consumes more than 10%, try resetting your network settings.

How to check if VoWiFi is turned off on Xiaomi Mi 10T

To make sure that VoWiFi is deactivated, use one of the following methods:

Method 1: Through the Status Indicator

When you call, look at the top notification bar, and if you see a Wi-Fi icon or a VoWiFi sign next to the signal level, the function is still active.

Method 2: Through settings SIM-map

Go to Settings. → SIM-maps and mobile networks → [Yours. SIM] → Wi-Fi calls. Slider must be off..

Method 3: Through the Engineering Menu

Enter the code ##4636##, go to Phone Information and check the status of Wi-Fi Calling.

Method 4: Test call

Call another number and:

• 📞 Turn off Wi-Fi on Mi 10T. If the call passes, VoWiFi is off.
• 🔄 Turn on Wi-Fi and turn off your mobile data. If the call doesn't pass, VoWiFi is off.

⚠️ Attention! Some carriers (such as MTS) may automatically connect VoWiFi when you update the firmware. MIUI check the settings again.

VoWiFi Alternatives: What to Use Instead of Wi-Fi Calls

If you have disabled VoWiFi but still need stable connectivity, consider alternative solutions:

For Xiaomi Mi. 10T Best option: VoLTE (calls through the phone) 4G). This technology is more stable than VoWiFi and is supported by all major carriers:

1. Go to Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-map.
3. Activate the Call Slider 4G (VoLTE).
4. Reboot your smartphone.

If VoLTE is not working, check:

• 📱 Support of the function by your operator (on the provider’s website).
• 🔄 Settings APN (must be automatically downloaded).
• 📶 Coverage 4G in your region.

💡

VoLTE is the best alternative to VoWiFi for Xiaomi Mi 10T. This technology provides more stable communication and does not depend on the quality of the Wi-Fi network.

FAQ: Frequent questions about disabling VoWiFi on Xiaomi Mi 10T