How to disable Wi-Fi calling on MTS: all the methods and nuances

Possibility to make calls via Wi-Fi (technology VoWiFi) has become the standard for most operators, including MTSThis feature is useful in areas with poor cellular coverage, but sometimes it can be a nuisance: for example, when calls drop when switching between Wi-Fi and mobile data, or when the battery drains faster due to constantly searching for a stable connection. In this article, we'll look at how to disable it completely or selectively. Disable Wi-Fi calling on MTS — both through the smartphone settings and from the operator side.

It is important to understand that the procedure differs depending on the phone model (Android or iPhone), firmware version, and even data plan. Some users encounter the VoWiFi option being enabled by default and not having a visible switch in the menu. We'll explore all possible scenarios, including hidden settings and contacting support. MTS.

If you're unsure whether you need this feature, first test it out. For example, try making a call with your mobile data connection disabled but Wi-Fi enabled. If the connection quality deteriorates or interference occurs, consider disabling VoWiFi.

What is VoWiFi and why should you disable it?

Technology Voice over Wi-Fi (VoWiFi) Allows you to make calls over a wireless network instead of traditional cellular service. This is especially useful in areas with weak signal strength. 4G/5G, for example, in basements, remote areas, or outside the city. However, this feature also has its drawbacks:

• 🔋 Increased battery consumption — the phone constantly scans for available Wi-Fi networks and maintains a connection with the operator’s servers.
• 📶 Switching problems — When leaving the Wi-Fi coverage area, the call may be interrupted if it does not have time to switch to the cellular network.
• 🛡️ Security risks — in public Wi-Fi networks (cafes, airports) calls can theoretically be intercepted.
• 📱 Incompatibility with some devices — on older smartphones, VoWiFi works unstable or is absent altogether.

In addition, some users have noted that after activating VoWiFi, they have lost USSD commands (For example, checking your balance by pressing *100#) or you've stopped receiving SMS messages from banks. This is because some operator services may conflict with Wi-Fi.

If you rarely call or use instant messengers (WhatsApp, Telegram, Viber) for voice communication, disabling VoWiFi will not affect comfort, but can save battery life and avoid technical failures.

How to disable VoWiFi on Android smartphones

On most devices with Android (For example, Samsung, Xiaomi, Huawei) The path to the VoWiFi settings is similar, but may vary slightly depending on the shell. The general algorithm is:

1. Open the app Telephone.
2. Click on the three dots (⋮) in the upper right corner and select Settings.
3. Go to the section Calls or Additional settings.
4. Find the item Wi-Fi calling or VoWiFi and move the slider to the position Off.

If there is no such item, try an alternative path:

• 📱 Log in Settings → Connections → Mobile network → Advanced → Wi-Fi calling.
• 🔧 On some Xiaomi the path looks like this: Settings → SIM cards & mobile networks → [select SIM] → Wi-Fi calling.
• 🤖 On the "clean" Android (For example, Pixel): Settings → Network & Internet → Mobile network → Advanced → Wi-Fi calling.

If the option is missing altogether, it may mean that:

• Your phone does not support VoWiFi (applicable to devices older than 2018).
• The function is blocked by the operator MTS for your tariff.
• Firmware update required.

Update your phone's firmware to the latest version

Make sure the SIM card is activated and recognized by the device.

Check if your mobile internet is turned on (sometimes VoWiFi only works when you have active data transfer)

Reboot your phone after changes-->

Disabling VoWiFi on iPhone (iOS)

On iPhone The process is a little simpler, but there are some nuances. Instructions for iOS 15–17:

1. Open Settings.
2. Go to Cellular communications (or Mobile communications).
3. Select your SIM card MTS.
4. Click on Wi-Fi calling.
5. Move the slider to the position Off.

If the slider is gray and inactive, it may mean:

• 🍎 Yours iPhone does not support VoWiFi (relevant for older models) iPhone 6s).
• 📱 Your SIM card is not activated for this feature (you need to contact support) MTS).
• 🌐 You are roaming - some operators disable VoWiFi abroad.

On iPhone there is also an option Manual Wi-Fi callingIf enabled, the phone will only use VoWiFi when there is no cellular signal. To completely disable the feature, uncheck both switches.

Disabling VoWiFi via your personal account or MTS USSD commands

If there is no option to disable VoWiFi on your phone, you can try to do it on the operator's side. MTS There is no direct USSD command to control this feature, but there are two alternative ways:

1. Through your personal account My MTS:
   1. Log in to the website lk.mts.ru or in the app My MTS.
   2. Go to the section Services or My services.
   3. Find a service Wi-Fi calling (may be called VoWiFi or Wi-Fi Calling).
   4. Click Disable.
2. Through support MTS:
   • 📞 Call the number 0890 (free from your phone) MTS) and ask to turn off VoWiFi.
   • 💬 Write to the support chat in the app My MTS or on the website.
   • 🏦 Contact a communications store with your passport.

Please note that this option may not be available in your personal account if:

• Your plan does not support VoWiFi (for example, corporate or legacy plans).
• You are using eSIM — settings may differ for virtual SIM cards.
• The feature is enabled by default and does not have a disable option (found on some business plans).

What should I do if support refuses to disable VoWiFi?

If your carrier claims the feature can only be disabled via your phone, check whether you have the "MTS Connect" or "Digital Number" service activated. Sometimes VoWiFi is tied to these options and can only be disabled when they are activated. Also, try temporarily switching to a different plan (for example, "Smart")—VoWiFi works differently on some plans.

Problems after disabling VoWiFi and their solutions

In some cases, users experience side effects after disabling VoWiFi. Let's look at the most common ones and how to resolve them:

Problem	Possible cause	Solution
SMS messages are not coming	Conflict with services MTS (for example, "MTS Bonus")	Restart your phone or temporarily enable VoWiFi to receive SMS
Calls are disconnected after 1-2 minutes	Incorrect APN settings	Reset network settings: Settings → System → Reset → Reset Mobile Network Settings
The 4G/5G icon has disappeared	Communication module failure	Turn on/off Airplane mode or reboot your device
Mobile internet is not working	VoWiFi was tied to the LTE network	Check your APN settings or contact support. MTS

If you lose sound during calls after disabling VoWiFi, check:

• 🔊 Volume settings (sometimes resetting VoWiFi also resets sound profiles).
• 📵 Is the mode activated? Vibration or No sound.
• 🎧 Connected headphones (sometimes the phone continues to send sound to the Bluetooth device).

Yes, I have completely disabled it.

Yes, but I left it in manual mode

No, I use it as is.

I don't know if I have VoWiFi-->

How to check if VoWiFi is disabled

To verify that the feature is truly disabled, follow these steps:

1. On Android:
   • Make a call by turning off your mobile internet and leaving only Wi-Fi.
   • If the call doesn't go through, VoWiFi is disabled.
   • Check the status in Settings → About phone → SIM card status (must be specified VoWiFi: inactive).
2. On iPhone:
   • The status bar (upper right corner) should not display MTS Wi-Fi.
   • Go to Settings → Cellular → Wi-Fi Calling — the slider should be gray.

Universal method:

• Call another phone and ask the caller to check if the icon is displayed. Wi-Fi next to your number (on some phones this is visible).

If you use dual SIM card, check the VoWiFi settings for each SIM separately. On some phones, the feature may only be active for the primary SIM.

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

If you've disabled VoWiFi but still want to make calls over the internet, consider alternative services:

• 📱 Messengers: WhatsApp, Telegram, Viber — support voice and video calls, often with better quality than VoWiFi.
• 💬 IP telephony: Zoiper, Linphone — allow you to call regular numbers via the Internet (registration with the provider is required).
• 🌍 Skype: Supports calls to mobile and landline numbers (paid, but cheaper than roaming).
• 📡 MTS Connect: Service from MTS, which replaces VoWiFi, but works on a different principle (requires separate activation).

The advantage of messaging apps is that they're not tied to a carrier and work even with the SIM card turned off. However, calling regular numbers (not through messaging apps) still requires a mobile connection or VoIP.

If you frequently make international calls, consider plans that include minutes to international destinations. For example, MTS there is an option Calls to 50 countries, which can be more profitable than VoWiFi with possible interruptions.

FAQ: Frequently asked questions about VoWiFi on MTS

Is it possible to disable VoWiFi for outgoing calls only?

No, the feature either works for all calls (outgoing and incoming) or doesn't work at all. Partial disabling is not possible.

Why did the internet disappear after disabling VoWiFi?

This may be due to your phone's VoWiFi being locked to an LTE network. Try manually selecting the network. 4G (LTE) in the mobile internet settings or reset the APN.

Will VoWiFi work when roaming?

Depends on the country and partnership agreements MTSVoWiFi is available in some countries (e.g., Türkiye, UAE), but not in others. Check before your trip.

Is it possible to disable VoWiFi on a smartwatch?

If your watch (for example, Apple Watch or Samsung Galaxy Watch) support VoWiFi, it can only be disabled through the paired phone in the SIM card settings.

Does VoWiFi affect mobile internet speed?

No, VoWiFi uses a separate channel for voice calls and doesn't consume your mobile data. However, if your Wi-Fi connection is poor, call quality may deteriorate.

If your question is not covered in the article, check the current terms and conditions on the official website. MTS Or check with your operator for details. Technology is constantly evolving, and settings may change.