WiFi Calling Not Working on Android? 12 Fixes That Actually Work

WiFi Calling can be a lifesaver when you’re in a location with weak cellular coverage. Instead of relying on a mobile network tower, your phone uses a WiFi connection to make and receive calls. This helps improve call quality indoors and allows you to stay connected even in areas with poor signal strength.

But what happens when WiFi Calling suddenly stops working?

You may notice that calls fail to connect, incoming calls never arrive, the WiFi Calling option disappears from settings, or your Android phone refuses to use WiFi Calling even when connected to a strong wireless network.

These problems can affect Samsung Galaxy phones, Google Pixel devices, Motorola phones, Xiaomi devices, OnePlus smartphones, Oppo, Vivo, Tecno, Infinix, and nearly every Android phone that supports WiFi Calling.

The good news is that most WiFi Calling issues can be fixed without contacting your carrier or replacing your device.

How WiFi Calling Works

Before troubleshooting the issue, it helps to understand what WiFi Calling actually does.

Normally, voice calls travel through your mobile carrier’s network.

With WiFi Calling enabled:

• Calls use your WiFi connection.
• Text messages may also work over WiFi.
• You can make calls in areas with poor cellular coverage.
• Voice quality often improves indoors.

For WiFi Calling to function properly, three things are required:

1. Your carrier must support WiFi Calling.
2. Your phone must support WiFi Calling.
3. You need a stable internet connection.

If any of these requirements fail, WiFi Calling may stop working.

Why Is WiFi Calling Not Working on Android?

Similar network issues can also cause mobile data not working on Android, especially when carrier settings or SIM configurations are affected. Several issues can prevent WiFi Calling from working correctly.

Common Causes

• Weak or unstable WiFi connection
• Carrier service problems
• Incorrect network settings
• Outdated Android software
• SIM card issues
• WiFi Calling disabled accidentally
• Corrupted network settings
• Android update bugs
• Router-related issues

Fortunately, most of these problems are easy to fix.

Fix 1: Confirm Your Carrier Supports WiFi Calling

Not every carrier supports WiFi Calling.

Even carriers that support the feature may limit it to specific plans or devices.

Check With Your Carrier

Verify:

• WiFi Calling is available on your account.
• Your phone model is supported.
• The service is activated.

Many WiFi Calling problems occur because the feature was never properly enabled by the carrier.

Fix 2: Turn WiFi Calling Off and Back On

Sometimes the feature simply needs to refresh.

Steps

1. Open Settings.
2. Tap Network & Internet.
3. Select SIMs or Mobile Network.
4. Tap WiFi Calling.
5. Turn it Off.
6. Wait 30 seconds.
7. Turn it On again.

After enabling it, make a test call.

Fix 3: Restart Your Android Phone

A simple restart can resolve temporary network glitches.

How to Restart

1. Press and hold the Power button.
2. Tap Restart.
3. Wait for the device to reboot.

Once the phone reconnects to WiFi, test WiFi Calling again.

Fix 4: Check Your WiFi Connection

If you need to reconnect to a saved network but cannot remember the password, read our guide on how to find saved WiFi passwords on Android.

WiFi Calling requires a stable internet connection.

Even if web pages load normally, poor connection quality can affect voice calls.

Test Your Connection

Check for:

• Frequent disconnects
• Slow internet speeds
• Weak WiFi signal
• Router issues

Move closer to the router and test again.

If possible, connect to a different WiFi network.

Fix 5: Enable Airplane Mode and Reconnect to WiFi

This trick forces the phone to use WiFi instead of searching for a weak mobile signal.

Steps

1. Enable Airplane Mode.
2. Turn WiFi back on.
3. Connect to your WiFi network.
4. Try making a call.

Many users find that WiFi Calling activates immediately after doing this.

Fix 6: Update Carrier Services

Carriers occasionally release updates that improve WiFi Calling performance.

Update Through Google Play Store

1. Open Google Play Store.
2. Search for Carrier Services.
3. Install available updates.

Restart the phone afterward.

Fix 7: Remove and Reinsert Your SIM Card

SIM-related issues can prevent WiFi Calling from registering properly.

Steps

1. Turn off the phone.
2. Remove the SIM card.
3. Wait one minute.
4. Reinsert the SIM card.
5. Restart the device.

After rebooting, test WiFi Calling again.

Fix 8: Update Android

Many WiFi Calling problems appear after major Android updates.

Manufacturers often release patches that resolve these issues.

Check for Updates

1. Open Settings.
2. Tap System.
3. Select Software Update.
4. Install any available updates.

Updating your phone can often restore missing WiFi Calling functionality.

Fix 9: Reset Network Settings

Resetting network settings can also help with related connection problems such as Android hotspot not working. Corrupted network settings can interfere with WiFi Calling.

Resetting them often solves persistent connectivity issues.

Steps

1. Open Settings.
2. Tap System.
3. Select Reset Options.
4. Tap Reset WiFi, Mobile & Bluetooth.
5. Confirm the reset.

You will need to reconnect to WiFi afterward.

Fix 10: Check Emergency Address Settings

Some carriers require an emergency address before WiFi Calling can be used.

If this information is incomplete, the feature may stop working.

Verify Your Account

Log in to your carrier account and confirm:

• Emergency address is valid.
• WiFi Calling remains enabled.
• Account status is active.

Fix 11: Test WiFi Calling in Safe Mode

Safe Mode can also help diagnose other app-related issues, including cases where the Android keyboard is not showing.

Third-party apps can occasionally interfere with network functions.

Enter Safe Mode

1. Press and hold the Power button.
2. Press and hold Power Off.
3. Tap Safe Mode.
4. Wait for the device to restart.

Try WiFi Calling again.

If it works, a recently installed app may be causing the problem.

Fix 12: Factory Reset as a Last Resort

If nothing else works, a factory reset may resolve deep software issues.

Important

Back up your:

• Photos
• Contacts
• Messages
• Documents

before proceeding.

Factory resetting should only be used after all other fixes have failed.

WiFi Calling Option Not Showing on Android

Many users report that the WiFi Calling option completely disappears.

Possible Reasons

• Carrier does not support WiFi Calling.
• Phone firmware restrictions.
• SIM card compatibility issues.
• Carrier settings need updating.

What to Do

1. Update Android.
2. Update Carrier Services.
3. Contact your carrier.
4. Verify device compatibility.

Why Is WiFi Calling Not Working on Samsung Phones?

Samsung users frequently search for:

• WiFi Calling not working Samsung
• Can’t enable WiFi Calling Samsung
• WiFi Calling option missing Samsung

Common fixes include:

• Updating One UI.
• Resetting network settings.
• Updating carrier services.
• Rebooting the device.

Samsung devices generally support WiFi Calling very well when carrier requirements are met.

WiFi Calling Is Enabled But Calls Still Fail

Sometimes WiFi Calling appears active, yet calls won’t connect.

Possible Causes

• Weak internet connection
• Router firewall restrictions
• Carrier outages
• VPN interference

Try:

• Disabling VPN apps.
• Restarting the router.
• Switching to another WiFi network.

Which Fix Works Most Often?

Based on user reports, these fixes solve most WiFi Calling problems:

Fix	Effectiveness
Restart Phone	Very High
Toggle WiFi Calling	Very High
Update Carrier Services	High
Reset Network Settings	High
Update Android	High
Reinsert SIM Card	Medium
Factory Reset	Last Resort

For most users, simply turning WiFi Calling off and back on, updating carrier services, or resetting network settings solves the issue.

The key is to work through the fixes systematically instead of changing multiple settings at once.

Can’t Enable WiFi Calling on Android

Restarting your phone is also a useful first step when fixing issues such as camera not opening on Android. Some Android users can see the WiFi Calling option but cannot activate it.

The feature may:

• Turn off automatically
• Remain grayed out
• Display an activation error
• Refuse to save changes

This issue is often caused by carrier restrictions, outdated software, or account configuration problems.

Fixes to Try

1. Restart your phone.
2. Update Carrier Services.
3. Check for Android updates.
4. Remove and reinsert the SIM card.
5. Verify that WiFi Calling is enabled on your carrier account.

If none of these steps work, contact your mobile provider and ask them to confirm that WiFi Calling is provisioned correctly on your line.

WiFi Calling Option Not Showing on Android

Many users search for:

• WiFi Calling option not showing Android
• Can’t find WiFi Calling settings
• WiFi Calling missing on Android

In most cases, the feature is either unsupported by the carrier or hidden because of software limitations.

Where to Find WiFi Calling Settings

Samsung Phones

Settings → Connections → WiFi Calling

Google Pixel Phones

Settings → Network & Internet → SIMs → WiFi Calling

Xiaomi Phones

Settings → SIM Cards & Mobile Networks → WiFi Calling

OnePlus Phones

Settings → Mobile Network → WiFi Calling

If the option is missing entirely, update Android and Carrier Services before contacting your network provider.

Why Is My WiFi Calling Not Working on Samsung?

Samsung users frequently encounter WiFi Calling issues after software updates or carrier changes.

Common Samsung-related searches include:

• WiFi Calling not working Samsung
• Samsung WiFi Calling issues
• Can’t enable WiFi Calling Samsung

Samsung-Specific Fixes

1. Update One UI to the latest version.
2. Update Carrier Services from the Play Store.
3. Reset network settings.
4. Restart the device.
5. Remove and reinsert the SIM card.

Samsung devices generally support WiFi Calling very well, so persistent issues often point to carrier configuration problems rather than hardware defects.

Router Settings That Can Affect WiFi Calling

Your phone may not be the problem at all.

Certain router settings can interfere with WiFi Calling and prevent calls from connecting.

Common Router Problems

• Outdated firmware
• Weak WiFi coverage
• Aggressive firewall settings
• Heavy network congestion
• Incorrect DNS settings

How to Test

1. Connect to a different WiFi network.
2. Enable WiFi Calling.
3. Place a test call.

If WiFi Calling works on another network, your router is likely causing the issue.

Quick Router Fixes

• Restart the router.
• Update router firmware.
• Move closer to the router.
• Switch between 2.4GHz and 5GHz WiFi bands.
• Disconnect unnecessary devices.

Signs Your Carrier Is Causing the Problem

Sometimes everything on the phone is configured correctly, but the issue originates from the carrier’s network.

Warning Signs

• WiFi Calling suddenly stopped working.
• Multiple users on the same network report issues.
• Calls fail on every WiFi network.
• WiFi Calling shows as enabled but refuses to place calls.

What to Do

Contact your carrier and ask them to check:

• WiFi Calling account status
• Service outages
• SIM provisioning
• Device compatibility

Many carrier-related WiFi Calling issues can be resolved without changing any phone settings.

Common Mistakes That Prevent WiFi Calling From Working

Many users unknowingly create conditions that stop WiFi Calling from functioning properly.

Leaving Battery Saver Enabled

Some battery-saving modes restrict background network services that WiFi Calling relies on.

Using an Unsupported Device

Even if your carrier supports WiFi Calling, your specific phone model may not.

Ignoring Software Updates

Outdated Android versions can cause compatibility problems with carrier services.

Using Poor Quality WiFi

WiFi Calling requires a stable internet connection. Weak or congested networks often cause call failures.

Avoiding these mistakes can save hours of troubleshooting and help WiFi Calling work more reliably.

Frequently Asked Questions

If you are setting up a new device, you may also want to learn how to copy contacts from Android to iPhone safely.

Why Is WiFi Calling Not Working on Android?

Common causes include carrier issues, weak WiFi, software bugs, and incorrect network settings.

Why Is the WiFi Calling Option Missing?

This usually happens due to carrier restrictions, unsupported devices, or outdated software.

Does WiFi Calling Work Without a SIM Card?

Most carriers require an active SIM card for WiFi Calling.

Can a VPN Affect WiFi Calling?

Yes. Some VPN services interfere with call routing and may prevent WiFi Calling from working properly.

Why Does WiFi Calling Keep Turning Off?

Network instability, carrier settings, or software bugs may cause the feature to disable itself.

Is WiFi Calling Free?

Most carriers do not charge extra for WiFi Calling, but policies vary by provider.

When Should You Contact Your Carrier?

If you’ve tried every fix in this guide and WiFi Calling still doesn’t work, the issue may be on your carrier’s side.

Contact your carrier if:

• WiFi Calling suddenly stopped working.
• The option disappeared after a SIM replacement.
• Calls fail despite a strong WiFi connection.
• The feature isn’t activating on a supported device.

In many cases, carriers can refresh your account settings and restore WiFi Calling without any changes to your phone.

WiFi Calling Not Working After an Android Update

Many Android users notice WiFi Calling problems immediately after installing a major software update.

This can happen because:

• Network settings are reset.
• Carrier settings become outdated.
• Android introduces temporary bugs.
• Existing app data becomes corrupted.

What to Do

If WiFi Calling stopped working after an update:

1. Restart your phone.
2. Update Carrier Services.
3. Reset network settings.
4. Check for additional software updates.

Manufacturers often release follow-up patches to fix bugs discovered after a major rollout.

Why WiFi Calling Works at Home but Not Elsewhere

Some users report that WiFi Calling works perfectly on one network but fails on another.

This usually points to a network-related issue rather than a phone problem.

Possible Causes

• Router restrictions
• Firewall settings
• Poor internet quality
• Public WiFi limitations

Many public networks block certain services required for WiFi Calling.

To test this:

1. Connect to another WiFi network.
2. Enable WiFi Calling.
3. Attempt a call.

If it works on another network, your original WiFi connection may be the problem.

Does WiFi Calling Drain Battery?

This is a common concern among Android users.

The answer depends on network conditions.

When Battery Usage Increases

WiFi Calling may consume more power if:

• The phone constantly switches between WiFi and cellular networks.
• The WiFi signal is weak.
• Background network activity is high.

When Battery Usage Decreases

WiFi Calling can actually improve battery life when:

• Mobile coverage is poor.
• The phone struggles to maintain a cellular connection.
• Calls are made primarily over strong WiFi.

For most users, the battery impact is minimal.

Common WiFi Calling Error Messages

Different Android phones display different error messages when WiFi Calling encounters a problem.

WiFi Calling Unavailable

This often indicates:

• Carrier issues
• Unsupported devices
• Account restrictions

Unable to Activate WiFi Calling

Usually caused by:

• Incorrect carrier settings
• Missing emergency address
• SIM card problems

Registration Failed

This typically occurs when the phone cannot connect to the carrier’s WiFi Calling servers.

Try:

• Restarting the phone
• Resetting network settings
• Reconnecting to WiFi

WiFi Calling vs Cellular Calling

Many users wonder whether WiFi Calling is actually better than traditional cellular calling.

Feature	WiFi Calling	Cellular Calling
Requires Mobile Signal	No	Yes
Works Indoors	Excellent	Depends on Coverage
Uses Internet	Yes	No
Call Quality	Often Better	Depends on Signal
International Use	Often Supported	Carrier Dependent

For people living in areas with weak indoor reception, WiFi Calling is often the better choice.

Who Benefits Most From WiFi Calling?

WiFi Calling is particularly useful for:

• Apartment residents
• Office workers
• Basement users
• Rural communities
• Travelers staying in hotels
• People living in areas with weak cellular coverage

When configured correctly, WiFi Calling can dramatically improve call reliability and voice quality.

Also Read:

• How to Turn Off an Android Phone (With or Without the Power Button)
• Android Hotspot Not Working? Here’s How to Fix It
• WiFi Calling on Android: What It Is, How to Enable It, and Common Fixes
• 15 Hidden Android Features You Should Be Using in 2026