Modern smartphones offer many features to improve communication quality, and one of these technologies is Voice over WiFi, or simply Wi-Fi calling. This option allows you to make calls in areas with weak or nonexistent cellular signal, using a wireless internet connection. However, this feature may not work correctly or be necessary in all situations.
Device owners often encounter a paradoxical situation: with Wi-Fi enabled, incoming calls may not be received, conversations may be interrupted, or they may switch to speakerphone without the user's knowledge. In such cases, it becomes urgent to deactivate this mode to force the device to switch to the standard cellular network. LTE or 3GThis is especially true for older routers that can't handle the data flow, or when using SIM cards from certain carriers that conflict with VoWiFi technology.
In this article, we'll take a detailed look at how to disable WiFi calling on Android, explore the differences in interfaces across different manufacturers, and answer frequently asked questions. You'll learn where to find hidden settings and how to force your phone to use the mobile network for voice calls, ignoring the wireless hotspot.
Why You Should Disable VoWiFi: The Main Reasons
Technology VoWiFi Voice over WiFi (Voice over WiFi) was originally designed to improve coverage in buildings with thick walls or in remote areas. However, in practice, the implementation of this feature can vary across devices and carriers, leading to technical issues. Users often look for a way to disable this feature because they experience unstable sound quality or unexpected data charges.
One of the main problems is improper handover between networks. When you leave the router's range, your phone must immediately hand over the call to a cell tower. If this handover process is poorly configured, the call simply drops. Furthermore, some smartphone models may prioritize a weak Wi-Fi signal over a strong 4G signal, which degrades connection quality.
Another important aspect is that device autonomyConstantly searching for and maintaining a wireless network connection for voice calls can consume more power than standard cellular standby. If you're in an area with strong mobile coverage, using Wi-Fi for calls becomes unnecessary and impractical.
Where to find call settings in the Android menu
The location of the switch for managing calls over a wireless network may vary significantly depending on the operating system version. Android and the manufacturer's installed shell. In most cases, the settings are accessible through the standard Phone app or general system settings.
To start, try accessing the settings through the call menu. Open the Phone app, tap the three dots in the corner of the screen or the More button, and select Settings. In the list that appears, look for "Wi-Fi Calling." If you don't see this option in the main menu, look in the "Advanced" or "Meter & Billing" section.
An alternative way is through the smartphone's system settings. Go to Settings → Connections → Wi-Fi CallingOn some Samsung devices the path may look like this Settings → Connections → Mobile network → Wi-Fi callingIt's important to note that if this option is missing everywhere, your carrier may not support this feature or it may be blocked by your firmware.
- 📱 Open the Phone app and find Settings in the menu.
- ⚙️ Check the "Connections" section in the general system settings.
- 📶 Look for the "Mobile network" subsection for detailed management.
- 🔍 Use the settings search by entering the query "Wi-Fi".
Instructions for different smartphone manufacturers
Android user interfaces vary widely, so there's no universal "Turn off all" button. Below are specific paths for the most popular brands to help you quickly find the right switch.
On devices Samsung With the One UI shell, controls are often moved to a separate menu. You need to go to Settings → Connections, then select "Wi-Fi Calling." Here you'll see a toggle. If you turn it off, the phone will stop initiating calls over the internet, even if the network is available. In some firmware versions, you need to tap the text of the option itself to open the priority selection submenu.
In smartphones Xiaomi, Redmi And Poco With MIUI or HyperOS, the path may be hidden deeper. Often, the setting is located at Settings → SIM cards & mobile networks → (Select SIM) → Wi-Fi calling., on some global Xiaomi firmware versions, this feature may be completely removed from the menu if the operator has not certified the device.
For device owners Google Pixel and other smartphones with "pure" Android (Stock Android) you should look for the settings in the section Network & Internet → Mobile Network → Preferred Network Type Or directly in the Phone app under Settings. Here, you'll often find the "Prefer Mobile Network" option, which effectively disables Wi-Fi priority for calls.
☑️ Checking your brand settings
⚠️ Attention: On some Chinese smartphone models (Huawei, Honor), the menu may not be fully localized. Look for items with similar meanings, such as "WLAN calls" or "Internet calls."
Control via engineering menu and codes
If standard methods fail or the menu item is hidden, you can use more advanced configuration tools. Android's engineering menu allows accessing hidden radio module settings, but caution is required. Changing incorrect settings can result in connection loss.
To access advanced settings, special USSD codes or commands in the Phone app are often used. For example, the code ##4636## opens the testing menu. In the "Phone Information" section, you can find the settings for your preferred network type. While there may not be a direct button to disable VoWiFi, switching the network mode to LTE only (LTE only) will temporarily solve the problem, as voice over Wi-Fi often works in conjunction with VoLTE.
##4636##Another method is to use ADB (Android Debug Bridge) commands from a computer. This requires enabling USB debugging. The command may look like changing a global setting via the shell, but it varies greatly depending on the specific Android model and version. An example command to try disabling it (not available on all devices):
adb shell settings put global wfc_spn_format_idx_list""It's worth remembering that tampering with system settings via ADB or the engineering menu may be reset after a device reboot or firmware update. This is a temporary solution for advanced users who understand the risks.
What happens if I change the settings in the engineering menu incorrectly?
You may lose cellular signal completely, your phone may stop recognizing your SIM card, or it may reboot itself permanently. Be extremely careful and remember the original settings before changing them.
Comparison of network operating modes
Understanding the differences between these modes will help you make an informed decision. The table below shows the key differences between standard calls and Wi-Fi calls.
| Characteristic | Standard calls (GSM/LTE) | Wi-Fi Calling (VoWiFi) |
|---|---|---|
| Sound quality | Depends on the tower coverage | High (HD Voice), if the internet is stable |
| Traffic consumption | Operator package minutes | Wi-Fi traffic (usually unlimited) |
| Stability | High when moving | Drops when switching between routers |
| Battery charge | Standard consumption | Often higher due to modules running |
As can be seen from the table, VoWiFi It's better in poor cellular reception conditions, but loses out on mobility. If you frequently move around your home or office where there are multiple access points, the phone may try to switch between them during a call, causing artifacts and lag.
It's also worth considering pricing. While most carriers count VoWiFi minutes as regular minutes in their package, some plans or roaming services may treat this differently. When roaming internationally, Wi-Fi calls can often save you significant money, but only if you're in a free or low-cost Wi-Fi zone.
The influence of the telecom operator and the SIM card
Keep in mind that whether you can use or disable this feature depends not only on your phone but also on your carrier's terms and conditions. Major carriers (MTS, Beeline, Megafon, Tele2, and others) support the technology, but may require its use or, conversely, block it on certain plans.
Sometimes carrier settings are updated automatically via OTA requests. You can disable this feature, but after a while, your phone will again receive a profile with VoWiFi enabled. In such cases, removing the SIM card, clearing contacts (if stored on the SIM card) and reinstalling, or manually resetting the network settings, can help.
⚠️ Attention: The terms of the Wi-Fi Calling service are subject to change by the operator without notice. Please check your current plan in your personal account, as some older plans may not support proper network switching.
There are also "gray" methods for disabling Wi-Fi calling through operator apps. In some cases, the "Enable Wi-Fi Calling" checkbox is available in your personal account on the operator's website. Unchecking it prevents the network from providing this service to your number, and your phone will not be able to initiate a Wi-Fi call, even if the setting is enabled in the menu.
Common problems after disconnection and their solutions
After you've disabled Wi-Fi calling, new issues may arise. For example, if the cellular signal is very poor in your area and you've disabled Wi-Fi for calls, the connection quality may drop to a critical level or even stop working altogether.
In this situation, it's worth considering an alternative: using instant messaging apps (WhatsApp, Telegram, Viber) for voice communication. These apps use the internet, but operate differently than native VoWiFi and are often more resilient to packet loss. However, they require the other party to have internet access.
If your phone continues to try to use Wi-Fi for calls despite your settings, try resetting your network settings. This won't delete your personal data (photos, contacts), but it will reset all connection settings to factory defaults. Path: Settings → System → Reset → Reset network settings (Wi-Fi, mobile, Bluetooth).
- 🔄 Reset network settings if the changes are not applied.
- 📵 Check if Airplane mode is activated with Wi-Fi turned on.
- 📞 Make sure the SIM card is not damaged and fits tightly in the slot.
- 🏢 In office buildings, setting up a corporate profile is sometimes required.
Why did everything return after resetting the settings?
Resetting network settings returns your connection settings to the default state. If your carrier enables VoWiFi by default when you first sign up for a network, the feature may reactivate. You'll need to manually disable it again.
Implementation details on different Android versions
With the release of new versions Android (12, 13, 14, 15) Google is changing the radio module's logic. In the latest OS versions, network priority management has become more aggressive. The system automatically decides which network to route a call through based on signal strength.
Android 14 and later introduces the "Adaptive Connection" feature, which can override your manual settings if the algorithm deems a Wi-Fi connection better. Disabling this behavior completely is only possible through hidden developer flags or ADB, which is not recommended for regular users.
However, the basic switch in settings should take precedence. If you notice your phone is behaving strangely, check for system updates. Bugs with switching between Wi-Fi and LTE are often fixed with security patches.
Is it safe to completely disable Wi-Fi for calling?
Yes, it's completely safe for your device. You're simply blocking your phone from using one of the communication channels. This won't damage your SIM card or the smartphone's hardware. The only risk is being cut off in a cellular carrier's "dead zone" where only Wi-Fi works.
Does disabling VoWiFi affect internet speed?
No, this doesn't affect data transfer speeds over Wi-Fi or mobile networks. This feature only applies to voice calls (or video calls via the native phone book). Your YouTube, browser, and apps will continue to function as before.
Is it possible to disable VoWiFi for one SIM if there are two?
Yes, in modern smartphones, settings are applied individually to each SIM card. By accessing the settings for a specific SIM card, you can leave the feature enabled for one and disable it for the other.
What should I do if the menu item is grayed out and cannot be clicked?
This means your current carrier or the SIM card you're using doesn't support this feature, or it's blocked by your carrier. Try a different SIM card from the same carrier to rule out damage to the card's plastic.
Do I need to restart my phone after it is turned off?
In most cases, changes take effect immediately. However, if you changed settings through the engineering menu or reset the network, a reboot is required for proper radio initialization.