Modern mobile phone usage conditions dictate their own rules: the quality of voice calls in rooms with thick walls or in remote areas often leaves much to be desired. Cellular network signals can be unstable, intermittent, or even absent, making it impossible to make important calls. In such situations, technology comes to the rescue. VoWiFi, which allows voice traffic to be transmitted over an Internet provider's wireless network.
Operator Megaphone actively implements and supports this feature, giving subscribers the opportunity to enjoy high-quality communications even in areas with poor network coverage. To activate this feature, you don't need to install third-party apps or pay for additional services—just configure it correctly. Android- smartphone. In this article, we'll cover all the nuances of enabling WiFi calling, explore the differences in interfaces across different manufacturers, and answer frequently asked questions.
Before proceeding with the settings, you need to make sure that your tariff plan and service region support the technology. MegaFon's VoWiFi feature is free, but traffic is consumed according to your plan's terms when you're abroad, or not at all when you're in your home region. Please make sure your device has the latest version of the operating system, as technology support depends on the firmware.
What is VoWiFi and how does it work with MegaFon?
Technology Voice over WiFi VoWiFi is a method of transmitting voice calls over IP protocols, similar to how video content or web pages are transmitted. Unlike popular messaging apps, which use their own servers and apps, VoWiFi is integrated directly into your phone's standard dialer. This means you don't need to ask your caller to install any software—you simply call a regular number, but the signal travels through a Wi-Fi hotspot.
Operator Megaphone Uses this technology to expand coverage and improve connection quality. When the smartphone detects a weak cell tower signal but sees an available Wi-Fi network, it can automatically switch the call to the internet connection. This is especially useful for basements, office buildings with shielded surfaces, and country houses.
- 📶 High sound quality: HD Voice technology provides crystal clear, interference-free sound.
- 🏠 Improved coverage: the ability to make calls from previously unreachable locations (garages, basements).
- 🔄 Seamless switching: your call will not be interrupted if you leave the WiFi zone but enter the 4G/3G coverage area (provided that VoLTE is supported).
It's important to understand that for this feature to work, the phone must be authorized on the operator's network. This happens automatically if you have a valid SIM card. Security system Megaphone Verifies the legitimacy of the device, so using modified firmware or root access may block the function.
⚠️ Please note: Call quality directly depends on the stability of your internet connection. If your WiFi is congested or has a high ping, your voice may sound robotic or your call may be dropped.
Checking device and SIM card compatibility
Not all smartphones that run on the base Android, support VoWiFi technology, even if they are relatively new. Support depends on the device manufacturer, regional firmware version, and the brand's relationship with the carrier. First, make sure your device is certified for these networks. Megaphone with this function.
The next critical step is checking your SIM card. Older cards, issued several years ago, may not contain the necessary profiles for authorization in the operator's IMS network. If you've been using your SIM card for more than 3-4 years, it's likely that it will need to be replaced. This can be done free of charge at a mobile store or through the operator's app.
It's also worth paying attention to your network settings. In some cases, you may need to manually select the network type to activate the necessary protocols. Make sure the mobile network mode is selected in the settings. 4G/LTE (automatic) or similar. Without active registration on the 4G network, VoWiFi may not be possible, as these technologies are tightly coupled at the core network level.
You can use special codes or the engineering test menu to check compatibility, but the most reliable method is to attempt activation through the standard menu. If the menu item is missing or inactive, it's likely that your device's firmware isn't certified by your operator for use in that region.
Step-by-step instructions for enabling it on Android
The process of activating WiFi calling on devices Android The procedure may vary slightly depending on the operating system version and the manufacturer's shell. However, the general steps remain the same for most models. First, you need to connect the device to a wireless network with access to the global network.
Once connected to the internet, go to your smartphone's main settings. Find the section for connections and networks. Depending on the model, it may be called "Connections," "Mobile Network," or "SIM Cards and Mobile Networks." This is where the key switches are located.
☑️ Check VoWiFi activation
Find "Wi-Fi Calling." Toggle the switch to on. The system may ask you to confirm the action or prompt you to enter an emergency services address (in Russia, this is usually not required; the address is determined automatically). Once enabled, a corresponding icon should appear in the status bar next to the network indicator.
If automatic activation doesn't occur, try restarting your device. Sometimes the phone needs time to re-register with the carrier's IMS network after changing settings. Also, make sure that Airplane mode isn't enabled on your phone, as it blocks all wireless interfaces.
| Action | Standard Android | Samsung OneUI | Xiaomi MIUI/HyperOS |
|---|---|---|---|
| Path to the menu | Settings → Network → WiFi Calling | Settings → Connections → Wi-Fi Calling | Settings → SIM cards → Wi-Fi calling |
| Indicator | A handset with a WiFi symbol | Text "Wi-Fi Call" or icon | Phone icon with WiFi waves |
| Priority | Auto | Customizable | Auto |
Features of setting up on Samsung smartphones
Devices of the South Korean brand Samsung have their own shell One UI, which differs in the logic of the arrangement of settings from the pure one AndroidHere, this function is often located in a separate connections submenu. To activate it, open "Settings," select "Connections," and find the "Wi-Fi Calling" line.
Inside this menu, you'll see a toggle. Turn it on. Samsung has a useful network priority feature. You can set your phone to prefer Wi-Fi for all calls, or to use it only when the cellular signal is very weak. This helps conserve battery life in areas with good LTE coverage.
Sometimes users encounter a situation where the menu item is present, but grayed out and inactive. This is often due to the phone having a SIM card from a different carrier, and the profile settings haven't updated. Try removing the SIM card, restarting the phone, and reinserting the card. Megaphone and check the settings again.
⚠️ Note: On some Samsung models purchased from unauthorized dealers (gray imports), this feature may be blocked by software at the regional firmware level. In this case, only a reflash to the CIS region will help.
Please remember that for the technology to work correctly on Samsung phones, the function must be enabled. VoLTEThese two technologies often work together to provide the best connection quality. Check that the "4G Calling" toggle is enabled in the adjacent SIM card settings menu.
Setting up VoWiFi on Xiaomi, Redmi and Poco
Smartphones from a Chinese company Xiaomi, including sub-brands Redmi And Poco, use the shell MIUI or a new one HyperOSHere, the settings can be more deeply hidden than on competitors. Often, the required switch is not in the general settings, but in the SIM card management menu.
Follow the path: Settings → SIM cards and mobile networksSelect a SIM card MegaFon, if you have two. In the menu that opens, find "Use Wi-Fi for calls." If you don't see this option, try searching through your settings and searching for "Wi-Fi Calling."
Xiaomi device owners often encounter the problem of the switch disappearing after a system update. This is because the carrier must certify each new model and firmware version. If the switch disappears after an update but worked before, it's likely a temporary limitation on the carrier's part or a firmware bug.