The problem of poor mobile reception in buildings with thick walls or in remote areas is familiar to many subscribers. In such situations, a lifeline often becomes Wi-Fi calling, which allows voice calls to be made over an internet connection. MegaFon is actively implementing this technology, ensuring stable connectivity in areas where conventional base station signals cannot penetrate. This is especially relevant for modern smartphones that support the standard. VoWiFi (Voice over Wi-Fi).
Using this feature doesn't require installing additional apps like Skype or WhatsApp, as calls are made directly from your regular phone number. The sound quality often surpasses standard GSM calls thanks to support for high-definition codecs. In this article, we'll take a detailed look at... How to activate WiFi calling on MegaFon for various devices and operating systems, and we will also consider possible pricing nuances.
Before diving into the technical details, it's worth noting that your tariff plan must support voice calls for this service to work. Most modern, archived, and current operator tariffs already include this option by default, but in rare cases, you may need to check the terms. Make sure you have sufficient funds in your account or have a suitable minute package activated, as traffic is consumed according to your basic tariff.
What is VoWiFi technology and how does it work?
VoWiFi Voice over Wi-Fi (Voice over IP) is a voice-over-IP technology similar to VoIP, but integrated directly into your phone book and standard dialing interface. Unlike messaging apps, which require the other person's account, it uses your real phone number. MegaFon uses encrypted communication channels, ensuring conversation privacy and protection from eavesdropping at corporate standards.
The principle of operation is that the voice signal is digitized, broken into data packets, and transmitted via the wireless network to the operator's gateways. There, it is converted back into a voice stream and sent to the subscriber. If you leave the router's coverage area during a call but still have cellular coverage, modern smartphones can automatically switch the call to the standard network. LTE or 3G without breaking the connection.
⚠️ Please note: Call quality directly depends on the stability and speed of your internet connection. For a comfortable conversation, we recommend a speed of at least 1 Mbps and a ping below 100 ms.
It's important to understand the difference between regular calls made through web apps and the phone's native calling functionality. The former uses a specific company's servers (such as Meta or Microsoft), while the latter uses the carrier's own infrastructure. This ensures that even without a mobile signal, you'll remain connected using your home or office network.
- 📶 Stability: It works even in the complete absence of a cell tower signal, the main thing is the presence of a router.
- 💰 Saving: Minutes are used from your tariff package; there are usually no additional charges for the technology itself.
- 🌍 Roaming: Allows you to receive incoming calls for free (like at home) and make calls at your home region's rates while abroad (provided you have a Wi-Fi connection).
- 📱 Integration: Does not require a separate application, works through the standard dialer.
Checking device and tariff compatibility
The first step before setting up is to ensure your hardware supports the required feature. Not all smartphone models, even those released several years ago, have hardware or software support. VoWiFi From MegaFon. The operator constantly updates the list of certified devices, adding new models and removing support for older ones, so it's best to check the latest information on the official website.
Regarding tariffs, MegaFon typically enables this service automatically for all postpaid and most prepaid subscribers. Exceptions may include some corporate tariffs with closed numbering or specific archived plans, where voice services can be disabled by the administrator.
List of popular supported models
iPhone 5s and later (iOS 12+), Samsung Galaxy S7 and later, Huawei P20 and later, Xiaomi Mi 9 and later. The full list is constantly updated and depends on the firmware version.
To check compatibility, you can use your personal account or the "My MegaFon" app. If your phone doesn't display the option in the settings, this doesn't always mean complete incompatibility—sometimes you need to update your device's firmware to the latest version provided by the manufacturer.
| Parameter | Requirement | Where to check |
|---|---|---|
| operating system | iOS 12+, Android 8+ | Settings → About phone |
| Phone model | Operator Certified | Operator's website / Settings |
| SIM card type | USIM (4G/5G) | Visually (cut chip) |
| Service status | Active online | Personal account / USSD |
If you're using a very old device or a budget entry-level model, the feature may be missing from the software. In this case, the only solution is to use third-party calling apps or upgrade to a more modern device.
Setting up VoWiFi on Android devices
The activation process on smartphones running Android The procedure may vary depending on the manufacturer and version of the OS. However, the general steps are the same for most brands, such as Samsung, Xiaomi, Honor, and others. First, ensure that a MegaFon SIM card is inserted into the phone and that it is selected as the primary SIM card for voice calls, if you have more than one.
Go to your smartphone's main settings. Find the section responsible for connections or mobile network. Depending on the model, the path may look like this: Settings → Connections → Wi-Fi Calling or Settings → SIM cards & mobile networks → Wi-Fi callingIf you don't see this option right away, try searching through your settings and searching for "WiFi" or "VoWiFi."
☑️ Activation checklist for Android
Once the slider is set to the desired position, a corresponding icon should appear at the top of the screen (in the status bar). This icon may look different on different devices: a handset with a Wi-Fi symbol, the words "Wi-Fi Call," or the carrier logo with a "W" prefix. If the icon appears but has a strikethrough, it means the phone is ready to use, but a connection to the carrier's server has not been established.
⚠️ Note: On some Xiaomi and Huawei models, you may need to activate hidden engineering settings or update your operator profile through the SIM card menu for the menu to appear.
It's important to note that on dual-SIM phones, you need to configure the settings separately for each SIM card. If you plan to make calls via WiFi from a specific number, make sure the switch is enabled for that number. Also, make sure the mobile network mode is enabled in the mobile network settings. 4G/LTE, as this is often a prerequisite for the service to work.
Instructions for iPhone (iOS) users
For smartphone owners Apple We're lucky with the interface consistency: setting up WiFi calls on iPhone is almost identical across all current versions of iOS. The main requirement is an updated operating system. If you haven't updated your phone in a while, go to Settings → General → Software Update and install the latest available version.
To activate the service, open "Settings" and go to the "Cellular" section. Find "Wi-Fi Calling." Slide the switch to the on position (it will turn green). The system may ask you to confirm your action via a pop-up.
In the pop-up window, click "Enable." After this, the phone will register with the operator's network via the internet.
If you have a dual-SIM iPhone (one physical and one eSIM, or two physical SIMs on China/Hong Kong models), you'll be asked to select which SIM card to activate the feature for. You can enable it for both numbers simultaneously. "MegaFon Wi-Fi" will appear in the status bar next to your carrier name, or simply a WiFi icon next to the cellular indicator.
- 🍏 Path: Settings → Cellular → Wi-Fi Calling.
- 📲 Adding devices: In the same menu, you can allow calls from other Apple devices (iPad, Mac) using one number.
- 📍 Address: When you first activate iOS, you may be asked to provide an address to send data to emergency services (112), even if you are not located at that address.
A unique feature of iOS is the ability to make calls from other devices. If you have an iPad or Mac, you can set up syncing so you can receive calls on your tablet even when your phone is in another room. To do this, in the "Wi-Fi Calling" menu, enable "On Other Devices" and select the devices you want to ring.
Roaming pricing and features
One of the most important questions for subscribers is how much it costs. MegaFon positions VoWiFi technology as transparent in terms of costs. Minutes spent on calls over WiFi are deducted from your basic plan's minute package, just as if you were calling through a regular cell tower. If your minute package is exhausted, you'll be charged the standard per-minute rate for your plan.
Roaming deserves special attention. While abroad, you can connect to local WiFi (at a hotel, cafe, or airport) and call Russia. Incoming calls will be free (as if you were in your home region), and outgoing calls will be charged according to your plan for calls from Russia, which is significantly cheaper than the standard roaming rate.
⚠️ Important: Make sure you have mobile data roaming disabled while making a WiFi call to avoid being accidentally charged for internet traffic while abroad.
Internet traffic consumed during a call is usually not billed separately if you're in your home region. However, if you use paid WiFi (for example, at an airport or hotel), you pay the network provider for internet access according to their terms.
Video calls are also worth mentioning. If you use FaceTime Audio or video calls via the native phone book (if your carrier and device support ViLTE/ViWiFi), pricing may vary. In most cases, MegaFon's WiFi video calling isn't yet as widely standardized as voice calls and may require separate terms or apps.
Troubleshooting and Common Errors
Despite the technology's robustness, users may encounter connection issues. The most common error is that the WiFi Calling icon is lit, but calls fail or are dropped. This may indicate routing issues with the internet provider or blocked ports. Try rebooting the router or switching to a mobile hotspot from another phone to test.
Another common situation is when a phone constantly switches between WiFi and cellular data, causing interruptions. This happens when the WiFi signal is weak but sufficient to maintain a connection, but not sufficient for clear voice quality. Phone settings often have a "Network Preference" option. Select "Prefer Wi-Fi" to prevent the phone from frantically trying to find a cellular network when WiFi is available.
If the feature suddenly disappeared, even though it worked before, check for carrier profile updates. On iPhone, this can be done via Settings → General → About (Scroll down). On Android, profile updates often happen automatically during a reboot or through the SIM card settings menu.
- 🔄 Reboot: Simply turning your phone off and on solves 80% of problems with registering online.
- 📶 Changing frequency: Try switching your router to 2.4 GHz if 5 GHz is unstable in your area, or vice versa.
- 🛡️ Antivirus: Sometimes firewalls on your router or antivirus software can block VoIP traffic.
Hidden setting for advanced users
In the Android engineering menu (the code depends on the model, often ##4636##) You can try resetting your network preferences, but only do this if you are confident in your actions.
If all else fails, the problem may be with your carrier. Maintenance or outages in a specific region can temporarily limit service access. Check the coverage map on MegaFon's website or contact support, providing the error code if one is displayed.
Why doesn't the WiFi Call icon appear after turning it on?
The icon may not appear if the phone hasn't registered with the carrier's IMS network. Try turning on airplane mode for 10 seconds and then turning it off. Also, make sure 4G/LTE is enabled in your mobile network settings, as VoWiFi is often tied to the LTE core.
Does sound quality decrease with poor internet connection?
Yes, at low speeds or high ping, the sound may become choppy, robotic, or the call may be dropped. The technology is adaptive, but requires a minimum channel quality threshold (usually around 80-100 kbps for a stable stream).
Is it possible to call emergency services (112) via WiFi?
Technically, the call will work if your device supports emergency calls over WiFi, but your location may be inaccurate, as it's determined by the router's IP address, not the cell tower. In emergency situations, it's better to use the regular cellular network.
Are minutes taken from the package when making calls via WiFi?
Yes, you're billed the same as a regular call. If you have unlimited minutes, your call is charged accordingly. If your bundled minutes run out, you'll be charged according to the regular rate.
Does this work on SIM-free tablets?
Yes, if your tablet supports a SIM card (or eSIM) and has an active MegaFon chip installed. On Wi-Fi-only tablets, native phonebook calls are not supported because there is no cellular module to register the number.