In today's world, stable connectivity is becoming a priority, and Voice over WiFi (VoWiFi) technology is designed to solve indoor cellular coverage issues. However, there are situations where this feature becomes unnecessary: for example, when the Wi-Fi signal is weak and unstable, leading to dropped calls, or when you want to force the cellular network to save roaming data if it's included in your plan. Understanding how to manage this feature gives users complete control over how their device establishes voice connections.
Disabling this feature doesn't require in-depth technical knowledge, but the settings interface may vary significantly depending on your smartphone model and operating system version. Sometimes the option is hidden in the developer menu or renamed by the carrier, causing confusion among device owners. In this article, we'll cover detailed steps for various platforms, explain the differences between internet calls and messaging apps, and explore the nuances of how the technology works under different operating conditions.
Before we move on to the actual shutdown, it is important to realize that Voice over WiFi This isn't a separate app, but a system function integrated into the phone's standard module. It allows voice streaming via the Internet protocol, using the same numbering and interface as regular calls. If you've noticed that connection quality has degraded when connected to a wireless network, or your smartphone's battery has started draining faster due to constantly searching for and maintaining a connection to the router, disabling this option is a logical solution.
Differences between VoWiFi and instant messaging calls
Many users mistakenly believe that disabling WiFi calling will prevent them from communicating via Viber, WhatsApp or TelegramThis is a fundamental misconception that is important to dispel before making any changes to the settings. Technology VoWiFi It operates at the carrier level and replaces a cell tower, while instant messaging apps use the internet to transmit data through their own servers. By disabling this system option, you simply prevent your phone from using the internet for regular voice calls via the SIM card.
Communication apps will continue to function exactly as before, requiring only an active network connection. Furthermore, distinguishing between these concepts helps better understand device resource consumption. When the mode is active Voice over WiFi, the phone can switch less aggressively between 3G/4G communication standards, which in some scenarios has a positive effect on battery life, but in others, when the router signal is poor, it leads to the opposite effect.
⚠️ Note: Disabling this feature in your phone settings does not guarantee immediate disconnection of the current connection if one is already established. Changes will take effect for new outgoing calls or after a device reboot.
It's also worth considering that some telecom operators may prioritize voice call traffic over WiFi, believing it to be more stable in congested networks. However, if your router uses older encryption standards or has a limited bandwidth, voice quality may drop sharply. In such cases, switching the call to a cellular network (GSM/LTE) often solves the problem of crackling and lag.
Instructions for iPhone (iOS) users
For smartphone owners Apple We're fortunate to have the most unified interface, where the necessary switches are clearly located. However, having a carrier that supports this technology is a prerequisite for the relevant menu items to appear. If your provider doesn't support the feature, you simply won't see the necessary switches, and searching for them deep within the system will be pointless.
To disable this feature, follow these steps:
- 📱 Open the Settings app from your home screen.
- 📶 Go to the "Cellular" (or "Mobile Data") section.
- 📞 Select "Wi-Fi Calling".
- 🚫 Move the switch to the inactive position (gray color).
It is important to note that on some iPhone models, such as iPhone 13 or newer, this item may be duplicated in the settings menu of a specific operator if a physical SIM card is installed and an eSIM is active. In this case, you should check the settings for each line separately to ensure the results. iOS allows for flexible management of priorities, but basic shutdown is performed through the main toggle switch.
☑️ Check iPhone settings
After completing these steps, the "Wi-Fi" message next to the carrier name will disappear from the status bar. This means the phone will no longer attempt to route voice traffic over the wireless network. If you use multiple SIM cards, make sure this setting is applied to the default line used for voice calls.
Android Setup: Samsung, Xiaomi, and More
World Android much more diverse, and the location of the required settings directly depends on the manufacturer's shell. The company Samsung in their devices of the series Galaxy moved the controls to a separate menu, while Xiaomi or Huawei They may hide it within the advanced call settings. The process always begins with opening the main settings menu, but further steps may vary.
Let's look at the main options for popular brands:
- 📲 Samsung: Settings → Connections → Wi-Fi Calling.
- 🤖 Pure Android (Pixel, Motorola): Phone → Settings → Calls → Wi-Fi Calling.
- 🔴 Xiaomi (MIUI): Settings → SIM cards & mobile networks → Wi-Fi calling.
In some cases, especially on devices with custom firmware, the option may be hidden. If you can't find the switch using standard methods, try searching through the settings by entering the keyword "Wi-Fi" or "Wi-Fi Calling." It's also worth remembering that on some models, this feature may be tightly tied to the carrier profile and cannot be manually disabled without changing the SIM card or flashing the firmware.
⚠️ Note: Operating system interfaces are updated regularly. If you don't find the specified item, use the search within your smartphone's settings menu, as section names may change.
For users who enjoy in-depth settings, there's the option to manage the device through the engineering menu, but this requires caution. For the average user, the standard interface is sufficient. The key is to find the section related to the SIM card or mobile network, as this is where the logic for voice calls is based.
What to do if the item is not in the menu?
If you don't see the toggle, it may mean your carrier doesn't support VoWiFi technology, or it's locked at the firmware level for your region. Also, check if your phone's software is updated to the latest version.
Comparison of communication technologies: table of features
To better understand which technology you're using at any given time, it's helpful to compare their key features. This will help you make an informed decision about whether you need to disable WiFi calling or perhaps change your data plan. The differences affect not only sound quality but also the impact on battery life and data usage.
It depends on the thickness of the walls.
| Parameter | Regular cellular communication (GSM/4G) | Voice over WiFi (VoWiFi) | Messengers (WhatsApp, Viber) |
|---|---|---|---|
| The basis of the connection | Cellular towers | WiFi router + operator server | Internet + application server |
| Tariffs | According to voice communication rates | Like a regular call (minutes) | Internet traffic |
| Indoor quality | High (with a good router) | Depends on the internet speed | |
| Phone number | Your number is in use | Your number is in use | Linked to account |
From the table it is clear that VoWiFi is a hybrid solution that retains the same number and pricing but changes the physical method of signal delivery. This makes the technology ideal for areas with cellular dead zones but poor Wi-Fi. However, if your goal is to completely eliminate internet usage for calls, disabling this feature is a must.
It's also worth mentioning that when roaming abroad, Wi-Fi calls are often charged at the same local or home rate, making them cost-effective. However, if you're in a strong home network area, switching to Wi-Fi can be unnecessary and even detrimental to connection quality when using public hotspots.
Problems with connection quality and their solutions
A common reason users seek to disable this feature is poor sound quality. Wheezing, interruptions, and a robotic voice effect often occur when the phone struggles to maintain a stable connection. In such cases, forcing a switch to a cellular network (LTE or 3G) often resolves the issue immediately.
If problems persist after disabling the feature, it's worth checking your network settings. Your phone may be stuck in 2G/3G mode where 4G is available. Switch the network mode in the settings. Settings → Mobile networks → Preferred network type on LTE/4G This may improve the situation. Briefly enabling airplane mode to reboot the communication module also helps.
Another issue may be the inability to make an emergency call. In some regions and on some devices, calls to emergency numbers (112, 911) over WiFi may not work or may require address registration. If you disable this feature, the phone will immediately attempt to locate any available cell tower, which may be more important than sound quality in an emergency.
Impact on roaming and traffic consumption
One of the most important aspects of using technology is traveling. When abroad, connecting to a local Wi-Fi network and making calls through it often allows you to avoid roaming charges, as the call is considered incoming from your home network or is charged according to special terms. However, if you disable this feature, your phone will begin searching for local networks, which can lead to unexpected charges.
It is important to distinguish between voice traffic and internet traffic. Calls via VoWiFi Calls don't usually use up your mobile data plan (gigabytes); they go through your operator's voice channel. However, if you use instant messaging apps, those gigabytes will be used. Therefore, by managing your connection settings, you're actually managing how voice is routed, not how the network is generally accessed.
⚠️ Please note: Wi-Fi call rates while roaming may vary between different carriers. Before traveling, be sure to check the current rates in your account or with customer support to avoid any unpleasant surprises on your bill.
For those who frequently travel on business, it's recommended to create a separate settings profile or simply remember the path to this feature. Quick switching allows for flexible response to changing conditions: in a hotel with poor cellular signal, turn it on; when going outside with a strong 4G connection, turn it off to save battery life or improve stability.
Frequently Asked Questions (FAQ)
Will my phone number disappear after I disable the feature?
No, your phone number will remain the same. The VoWiFi feature only changes the signal transmission method and does not affect your identity on the carrier's network. All incoming and outgoing calls will appear as your regular number.
Will the internet work after disabling WiFi calling?
Yes, WiFi internet access will remain fully functional. You'll be able to use your browser, email, and apps. However, the ability to use this channel for voice calls via the standard dialer will be disabled.
Why did the sound in the headphones disappear after disabling the function?
This is unlikely if the problem is specifically with the VoWiFi function. However, if audio routing fails when switching networks, try restarting your phone. Also, check if audio is switched to the phone speaker instead of the Bluetooth headset.
Do I need to restart my phone after changing settings?
In most cases, changes are applied immediately. However, if the phone is stuck registering with the network or doesn't see the changes, rebooting the device will help the communication module re-register with the new settings.
Is it possible to disable the function for only one SIM card?
Yes, in modern smartphones with two active SIM cards, VoWiFi settings are configured individually for each line. You need to select the corresponding SIM card in the settings menu and change the setting for that line only.