Wi-Fi Tube on Phone Screen: Causes and Fixes

You turned on your phone and suddenly an icon appeared on the screen tubes with a Wi-Fi symbolThis isn't a system error or a virus—it's most likely a specific device operating mode that activates under certain conditions. This sign can be confusing, especially if you've never encountered it before. In most cases, it signals in the mode of telephone calls via the Internet (VoWiFi) or o problems connecting to a mobile network.

But why did the system decide to display the Wi-Fi handset instead of the standard network indicator? There could be various reasons, ranging from a simple glitch to specific issues with your carrier. In this article, we'll explore all possible scenarios, from the innocuous to those requiring intervention. You'll learn how to distinguish normal operation from a malfunction, and what to do if the icon persists even after a reboot.

Let's note right away: if the Wi-Fi handset appeared after a firmware update or a SIM card change, this is almost certainly related to the settings VoLTE/VoWiFi (voice communication via 4G/5G or Wi-Fi). On some phone models - for example, Samsung Galaxy or Xiaomi Redmi — these indicators are displayed by default. But there are other reasons that many people don't realize.

What does the Wi-Fi handset icon on a smartphone screen mean?

Tube icon with a symbol Wi-Fi — is a visual representation of one of two functions:

  • 📞 VoWiFi (Voice over Wi-Fi) — a technology that allows calls to be made over the internet rather than a cellular network. Useful in areas with poor mobile coverage.
  • 🔄 Switching to internet calls Due to problems with the SIM card or carrier network, the phone automatically tries to maintain a connection using available Wi-Fi.

On Android This icon most often appears in the status bar next to the network indicators. iPhone You can see it in the upper right corner (if enabled) Wi-Fi Calling in the settings). It is important to understand that the appearance of the icon itself does not mean a malfunction This is the default operating mode for modern smartphones. However, if you haven't intentionally enabled VoWiFi, it's worth checking your settings.

Interesting fact: on some firmware (for example, MIUI from Xiaomi) a Wi-Fi handset may show up even when VoWiFi is turned off - this is a bug that can be fixed by resetting the network settings. And on iPhone The icon appears only if the operator supports the technology (in Russia this is MTS, Beeline, Megaphone And Tele2).

📊 Have you ever used VoWiFi (Wi-Fi calling)?
Yes, often
I tried it, but I didn't like it.
No, I don't know what it is.
My operator does not support

Reasons for the Wi-Fi handset icon appearing

Let's look at all the possible reasons why this symbol might appear on your phone screen. Some are harmless, while others require immediate attention.

Cause How does it manifest itself? Is there anything that needs to be done?
On VoWiFi in the settings The icon appears when connected to Wi-Fi, calls are made over the Internet No, if you need the feature. You can disable it in the settings.
SIM card problems There's no network, but there's Wi-Fi. The phone switches to internet calls. Yes, check your SIM card or contact your operator.
Firmware failure The icon is displayed constantly, even without Wi-Fi Yes, reset network settings or update software
The operator forcibly activated VoWiFi The icon appeared after updating the tariff or replacing the SIM card. You can disable it in your operator's personal account.

The most common reason is - Automatic VoWiFi activation. Many operators (for example, Megaphone or Beeline) activate this feature by default for subscribers with supported plans. If you don't want to make calls over the internet, you can disable it. However, in some cases (for example, in a basement or out of town), VoWiFi may be the only way to stay connected.

Less often the problem lies in incorrect operation of the communication moduleThis can happen after a phone is dropped, gets wet, or has a failed update. If you notice other issues besides the phone icon—for example, the phone isn't getting a network connection or constantly reboots—it's worth running diagnostics.

How to Disable a Wi-Fi Phone on Android

If the icon is in the way or you don't use internet calls, you can remove it. Android The path to the settings depends on the system and shell version. Here are the general instructions:

  1. Open SettingsNetwork and Internet (or Connections).
  2. Select Mobile networkAdditionally (or Network mode).
  3. Find the items VoLTE And VoWiFi (can be called Calls via Wi-Fi).
  4. Turn off both switches.

On phones Samsung the path may look like this: Settings → Connections → Mobile networks → Wi-Fi calling.

On Xiaomi (shell MIUI): Settings → SIM cards & mobile networks → [select SIM] → Wi-Fi calling.

If the icon remains after disabling, try restarting your phone. If that doesn't help, reset your network settings (Settings → System → Reset → Reset Wi-Fi, mobile networks, and Bluetooth). Attention: This will delete all saved Wi-Fi passwords!

☑️ Check before disabling VoWiFi

Completed: 0 / 4

How to remove the icon on iPhone (iOS)

On iPhone the Wi-Fi handset only appears if it is turned on Wi-Fi CallingIt's disabled like this:

  1. Go to SettingsCellular communications.
  2. Select Calls via Wi-Fi.
  3. Move the slider to the position Off

If the option is grayed out, it means your carrier doesn't support this feature. In Russia Wi-Fi Calling It's officially available from all major carriers, but sometimes additional activation is required through your personal account or a call to support.

On iPhone the inscription may also be displayed "Cellular network not available" next to the handset icon. This means the phone is trying to make calls over Wi-Fi due to lack of mobile network coverage. In this case, check:

  • 📶 Signal level (you may be in a poor coverage area).
  • 🔧 SIM card settings (Settings → Cellular → SIM app).
  • 📱 Modem mode (sometimes conflicts with VoWiFi).
What to do if VoWiFi won't turn off?

If after all manipulations the icon remains, try:

1. Remove and reinsert the SIM card.

2. Reset network settings (Settings → General → Transfer or reset iPhone → Reset → Reset Network Settings).

3. Update iOS to the latest version.

If nothing helps, contact Apple support or your carrier.

When a Wi-Fi handset is a sign of malfunction

In most cases, the Wi-Fi handset icon is normal smartphone behavior. However, there are situations when it signals problems:

⚠️ Attention: If the Wi-Fi handset appears without internet connection (for example, in airplane mode or with Wi-Fi turned off), this may indicate a problem with the communication module. In this case, the phone requires diagnostics at a service center.

Other warning signs:

  • 🔴 The phone doesn't pick up the network even with a different SIM card.
  • 🔄 The icon blinks or disappears - appears randomly.
  • 📵 Calls do not go through either the mobile network or Wi-Fi.
  • 🔋 The phone gets very hot or the battery drains quickly.

If you experience any of these symptoms, try:

  1. Insert the SIM card into another phone and check its functionality.
  2. Reset all settings (not data!) through the recovery menu.
  3. Flash your phone with official firmware (if you have experience).

On Android To test the communication module, you can enter the engineering code:

##4636##

In the menu that opens, select Phone information and look at the status Voice network typeIf it is empty or indicated unknown — the problem is in the hardware.

What to do if your carrier has forcibly activated VoWiFi

Some operators (eg. Tele2 or Yota) automatically connect subscribers to VoWiFi without their knowledge. This can happen when:

  • 🔄 Change of tariff plan.
  • 📱 Activation of a new SIM card.
  • 📡 Updating operator network settings.

To disable forced activation:

  1. Log in to your operator's personal account (via the website or app).
  2. Find the section Services or Additional options.
  3. Deactivate Wi-Fi Calling or VoLTE.

If you don't see this option in your personal account, call your operator's hotline and ask them to disable VoWiFi. Example commands for popular operators:

  • MTS: *111*469# (checking VoLTE status).
  • Beeline: *110*181# (service management).
  • Megaphone: *105*477# (disabling VoLTE/VoWiFi).
⚠️ Attention: For some carriers, disabling VoWiFi may impact connection quality in areas with poor coverage. Please contact support for details.

Prevention: How to avoid VoWiFi problems in the future

To prevent the Wi-Fi handset icon from appearing unexpectedly, follow these tips:

  • 🔧 Regularly check your mobile network settings after firmware updates.
  • 📱 When purchasing a new SIM card, check with your operator whether it supports VoLTE/VoWiFi.
  • 🔄 Periodically reset your network settings (this helps avoid glitches).
  • 📡 In areas with poor coverage, turn off VoWiFi if you don't plan to make calls.

It is also useful to know:

  • On Android 12+ And iOS 15+ VoWiFi works more stable than on older versions.
  • Some custom firmware (For example, LineageOS) may not display icons correctly.
  • If you travel frequently, check with your operator about the roaming rules for VoWiFi (sometimes Wi-Fi calls are blocked while roaming).

And lastly, if you use two SIM cards, VoWiFi can be activated only for one of them (usually for the one in the slot SIM 1). To avoid confusion, set the network priority manually.

FAQ: Frequently asked questions about the handset with Wi-Fi on the screen

Is it possible to make calls via VoWiFi without a Wi-Fi connection?

No, for work VoWiFi An internet connection (Wi-Fi or mobile data) is required. If Wi-Fi is disabled, the phone will automatically switch to a regular cellular connection (if available).

Is VoWiFi paid for by Russian operators?

VoWiFi calls are charged the same as regular calls according to your plan. This means if you have unlimited calls, VoWiFi will also be free. However, some carriers may charge a service activation fee (check in your account).

Why does the Wi-Fi handset only appear on one SIM card?

It depends on your phone and carrier settings. VoWiFi is usually activated for primary SIM card (the one in slot 1). To enable the feature for the second SIM, go to your mobile network settings and select the desired card.

Can VoWiFi work over mobile internet (4G/5G)?

Technically yes, but operators usually block this feature to avoid double network load. VoWiFi is designed to work over Wi-Fi, and for calls via mobile Internet it is used VoLTE.

How do I check if my phone supports VoWiFi?

A list of supported devices can be found on your operator's website. Generally, VoWiFi works on all smartphones with Android 9+ And iOS 12+, but some budget models (for example, Redmi 9A) may not support the function.