What to Do If Wi Fi Calling Is Not Working on vivo S50

If Wi Fi Calling is not working on your vivo S50, you may notice dropped calls indoors, failed outgoing calls, or the option missing entirely from your settings. This feature is designed to route calls through your Wi Fi network when cellular signal is weak. When it stops working, the problem is usually tied to carrier support, network configuration, or incorrect settings.

Here is how to troubleshoot it step by step.

Why Wi Fi Calling Is Not Working on vivo S50

• Your carrier does not support Wi Fi Calling for your SIM plan.
• Wi Fi Calling is turned off in settings.
• Your Wi Fi connection is unstable or too slow.
• The SIM card is not provisioned correctly by the carrier.
• Network settings may be misconfigured after a software update.

Check If Wi Fi Calling Is Enabled

Wi Fi Calling must be manually enabled on most Android devices. If it is off, your phone will always rely on cellular signal even when Wi Fi is strong.

Open Settings, and then tap Network and Internet.
Tap SIM cards and mobile network, and then select your active SIM.
Tap Wi Fi Calling, and then toggle it on.

If the option is missing, your carrier may not support it for your plan.

Make Sure You Are Connected to Stable Wi Fi

Wi Fi Calling only works if your internet connection is strong and consistent. A weak router signal or unstable broadband can prevent the feature from activating.

Open Settings, and then tap Wi Fi.
Select your connected network, and then check the signal strength.
Move closer to the router if the signal is weak.

Turn Airplane Mode On and Off

This refreshes your phone’s network connection and forces it to reconnect to both Wi Fi and mobile networks. It often resolves temporary network registration issues.

Swipe down from the top of the screen to open Quick Settings.
Tap Airplane mode, and then wait ten seconds.
Tap Airplane mode again, and then reconnect to Wi Fi.

Update Carrier and System Settings

Outdated software can interfere with advanced calling features. Keeping your device updated ensures compatibility with your carrier’s network.

Open Settings, and then tap System.
Tap Software update, and then check for updates.
Install any available update and restart your phone.

Remove and Reinsert the SIM Card

A SIM card that is not seated properly can prevent network features from working correctly. Reinserting it forces the device to reauthenticate with your carrier.

Turn off your phone, and then remove the SIM tray.
Take out the SIM card, and then insert it again securely.
Turn the phone back on and test Wi Fi Calling.

Wi Fi Calling on the vivo S50 should activate automatically once it is enabled and your carrier supports it. After checking the settings and refreshing the network, most users find the feature works normally again.

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