Modern mobile communication technologies allow you to stay connected even where cell tower signal strength is minimal or absent altogether. Technology Wi-Fi Calling (VoWiFi) Megafon's Wi-Fi solution solves this problem by allowing you to make voice calls and send text messages over your home or office Wi-Fi network. This is especially relevant for residents of apartment buildings with thick walls, basement offices, or remote suburban areas.
The technology operates by transmitting voice traffic over the internet protocol, bypassing standard GSM, 3G, or LTE radio channels. For the subscriber, this process is completely transparent: the phone number remains the same, and the connection quality often exceeds standard, as the internet channel is usually more stable than an overloaded cell tower. It's important to understand that Wi-Fi calling They are not charged separately - they use up the minutes of your main package, just as if you were talking on a regular cellular network.
Before setting up, you need to make sure your device supports this feature at the software level. Most modern smartphones released after 2017 already have the necessary module, but in some cases a firmware update is required. It's also worth checking whether the feature is blocked by your carrier on your tariff plan, although Megafon offers this option free for most subscribers.
Device and tariff requirements
To successfully activate the service, your smartphone must meet a number of technical requirements. First and foremost, this means VoWiFi support on both hardware and software levels. MegaFon is constantly expanding its list of compatible devices, but the basic requirements remain a 4G modem and the latest operating system.
Android-devices require not only manufacturer support for the feature, but also the presence of appropriate firmware settings, which often depend on the region. For owners iPhone You're luckier: starting with the iPhone 6 and iOS 13, support is built in by default, but may require a carrier profile update. If your phone wasn't purchased from an authorized dealer in Russia (the so-called "other market" versions), the feature may not be available in the software.
⚠️ Attention: If you're using a dual-SIM smartphone, make sure Wi-Fi Calling is enabled for the SIM card you plan to use for calls. Settings can be applied individually for each SIM card slot.
Additionally, your tariff plan must include voice calling. This feature is also available on archived plans, where calls are billed separately per minute without bundles, but will be charged according to your base plan. Corporate clients may have individual settings, so if you have any activation issues, please contact business support.
Checking smartphone compatibility
The first step before setup should be a thorough check of your device model. Not all phones, even those supporting 4G, can transmit voice over Wi-Fi. Your carrier publishes a list of compatible models, which is updated regularly. This list includes devices from leading brands: Samsung, Apple, Xiaomi, Huawei, Honor and others.
To quickly check support status, you can use the official IMEI checker on the operator's website or simply try to find the appropriate switch in the settings. The absence of the switch doesn't always mean incompatibility—sometimes it needs to be activated via a hidden engineering menu or a USSD request, if the firmware supports it.
The table below shows examples of popular models and their technology support status:
| Brand | Model | Support status | Peculiarities |
|---|---|---|---|
| Apple | iPhone 8 and newer | Full | Requires iOS 13+ |
| Samsung | Galaxy S10 and newer | Full | Depends on the firmware region |
| Xiaomi | Mi 11, Redmi Note 10 | Partial | Global firmware is needed |
| Huawei | P40, Mate 30 | Limited | Only new models |
If your model isn't on the supported list, it doesn't mean the feature won't work, but it does reduce the likelihood of successful activation. Owners of smartphones with custom ROMs often encounter missing system libraries.
How to enable Megafon Wi-Fi Calling on Android
On devices running Android The process for enabling this feature may vary depending on the manufacturer's operating system (MIUI, OneUI, ColorOS, etc.). The standard path is usually found in the main network settings section. You need to go to the menu Settings → Connections → Wi-Fi Calling or Settings → Mobile Network → Wi-Fi Calling.
In some cases, the switch may be hidden or inactive. In this case, you should try activating the function through the engineering menu by entering a special code in the dialing field, for example, ##869434## (The code may vary depending on the model.) After entering the code, a notification should appear stating "VoWiFi Carrier Check Enabled," indicating that the hidden flag has been successfully activated.
☑️ Activation checklist for Android
If standard methods don't help, you can try resetting your network settings to factory defaults. This will delete saved Wi-Fi passwords and Bluetooth settings, but it often resolves issues with registering with your carrier's network. After resetting, re-enter your APN settings (if they weren't loaded automatically) and try enabling the feature again.
⚠️ Attention: The menu interface may change after operating system updates. If you can't find the item you need, search for "Wi-Fi" or "Calls" in the settings.
Setting up VoWiFi on iPhone (iOS)
For smartphone owners Apple We're lucky to have a more unified interface. To activate the service, make sure your device is running the latest version of iOS. The setup process is extremely simplified and takes just seconds. Go to Settings → Cellular (or "Mobile Data").
Select the Megafon SIM card (if there are several) and find the item Wi-Fi callingTurn the switch to the on position. The system may request confirmation of your address for emergency services (E911); this is standard procedure and requires your actual location.
What should I do if the Wi-Fi Calling option is missing on my iPhone?
If you don't see this option, check for iOS updates. Also, make sure your carrier is displayed correctly in Settings → General → About. Sometimes removing and reinserting the SIM card or updating your carrier profile (Settings → General → About → scroll down) can help.
Once enabled, a "Wi-Fi" icon or the word "Wi-Fi Call" will appear in the status bar next to the carrier's name. This indicates that the phone is ready to reroute voice traffic over the internet when the cellular signal degrades. It's important to note that on iPhone, this feature works even in Airbus A3 mode, as long as Wi-Fi is enabled.
Troubleshooting connection issues and errors
Despite the simplicity of setup, users may encounter various errors. The most common is that the Wi-Fi Calling icon is present, but calls fail or are dropped. This is often due to router settings blocking certain ports or protocols required for voice traffic.
The problem could also be a weak Wi-Fi signal. For stable VoWiFi operation, an internet speed of at least 1-2 Mbps and a low ping are recommended. If you're in a public Wi-Fi zone (like a cafe or airport), access may be restricted by network security policies.
- 📶 Weak signal: Make sure that the Wi-Fi reception level on your phone is at least 2-3 bars.
- 🔒 Port blocking: In corporate networks, administrators often block VoIP traffic.
- 🔄 IP conflict: Try forgetting the Wi-Fi network and reconnecting with a new IP address.
Another cause of crashes could be an outdated version of the Megafon app or Google Play system services (on Android). Regular software updates help fix compatibility issues.
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Pricing and features of use
Many subscribers mistakenly believe that Wi-Fi calls are free when roaming or are charged differently. It's important to remember: Calls and SMS via Wi-Fi Calling are charged exactly the same as regular calls and SMS according to the terms of your tariff plan.If you're in your home region, your package's minutes are used. If you're roaming, roaming rates apply, even if you're connected to Wi-Fi.
However, there's an important caveat: incoming calls and SMS messages while roaming with Wi-Fi Calling enabled often remain free, just like they would be on your home network, but this depends on the specific terms of your plan and the country you're in. Incoming SMS authorizations from banks should also be free.
Data consumption during a call is approximately 1-2 MB per minute. If you have unlimited home internet, you won't even notice. However, when using mobile Wi-Fi (sharing from another phone), it's worth monitoring the amount of data consumed.
Frequently Asked Questions (FAQ)
Do you charge for calls over Wi-Fi?
No, there is no separate fee for the technology itself. You pay according to your plan's rates (per package minute or per minute), just like for a regular call. Internet traffic is charged at your Wi-Fi provider's rates.
Is it possible to use Wi-Fi Calling if the SIM card does not detect the network (no “bars”)?
Yes, this is the main advantage of this technology. If the phone is connected to Wi-Fi, it will be able to make and receive calls even when there is no cell signal (in Airplane mode with Wi-Fi enabled).
Why does the screen say "Wi-Fi Calling" instead of the carrier name?
This is standard behavior. When the technology is active, the phone displays which network it's connected to. Some models (like Samsung) can change this display in the settings, but most often it's simply an indication of the operating mode.
Does Wi-Fi Calling work if the router is distributing the Internet from a mobile phone (modem mode)?
Technically, this is possible, but not recommended. In this case, you create a loop: voice traffic goes through one operator's mobile network, is encoded into data packets, and is sent back to the network of the same or another operator. This can cause routing errors or double billing.