Wi-Fi calling allows your Android phone to make and receive calls using a Wi-Fi network instead of a cellular connection. It’s especially helpful in areas with poor signal coverage. However, Wi-Fi calling doesn’t always work seamlessly. You may face issues such as calls not going through, dropped calls, or the Wi-Fi calling option being unavailable or grayed out.

How can I fix Wi-Fi calling on Android phone?

This comprehensive guide explains why Wi-Fi calling might not work and provides step-by-step solutions to fix the issue on your Android phone.

What Is Wi-Fi Calling?

Wi-Fi calling lets your phone route calls and text messages over a Wi-Fi network instead of relying solely on cellular signals. It’s typically supported by major carriers and works well when:

  • You’re indoors with weak cellular coverage
  • You’re traveling abroad and want to avoid roaming charges
  • You’re in a basement or remote area where only Wi-Fi is available

Common Issues With Wi-Fi Calling

  • Wi-Fi calling toggle is missing or disabled
  • Calls drop or fail to connect
  • Wi-Fi calling only works intermittently
  • You see “Wi-Fi calling unavailable” errors
  • Poor audio quality during calls

Step-by-Step Fixes for Wi-Fi Calling Issues

Ensure Wi-Fi Calling Is Supported by Your Carrier and Device

Not all carriers or phones support Wi-Fi calling.

  • Visit your carrier’s official website to confirm Wi-Fi calling compatibility.
  • Most modern Android phones support it, but it may be disabled by default or hidden if unsupported.

Popular supported carriers (varies by region):

  • Jio, Airtel, Vi (India)
  • Verizon, T-Mobile, AT&T (USA)
  • EE, Vodafone, O2 (UK)

Enable Wi-Fi Calling on Your Android Phone

Steps may vary by brand:

General Android:

  • Go to Settings > Network & Internet > Mobile network.
  • Tap Advanced > Wi-Fi Calling.
  • Toggle Wi-Fi Calling ON.

Samsung Devices:

  • Go to Settings > Connections > Wi-Fi Calling.
  • Toggle Wi-Fi Calling ON.

Xiaomi/Redmi:

  • Go to Settings > SIM cards & mobile networks.
  • Select your SIM > Enable Make calls using Wi-Fi.

Note: You must be connected to a working Wi-Fi network to access the Wi-Fi calling option.

Connect to a Strong Wi-Fi Network

Wi-Fi calling depends on a stable and high-speed internet connection.

Tips:

  • Ensure you’re connected to a reliable Wi-Fi network.
  • Avoid public Wi-Fi for calling (unstable and unsecured).
  • Restart your router if signal strength is low or inconsistent.
  • Try switching between 2.4 GHz and 5 GHz bands.

Prioritize Wi-Fi Over Mobile Network

Sometimes, your phone may prefer the mobile network even if Wi-Fi is enabled.

To fix this:

  • Enable Airplane Mode, then manually turn on Wi-Fi.
  • This forces the device to use Wi-Fi only.
  • Now try making a call via Wi-Fi.

Update Carrier Settings and System Software

Carriers often update network features through OTA (over-the-air) updates.

Steps:

  • Go to Settings > System > System update and check for updates.
  • Also check for carrier settings updates if prompted.

Keeping your phone updated ensures optimal performance and compatibility with Wi-Fi calling.

Clear Phone App Cache and Data

Corrupted app data may interfere with calling features.

Steps:

  • Go to Settings > Apps > Phone.
  • Tap Storage & cache.
  • Tap Clear cache, then Clear data.
  • Restart your phone and try again.

Check SIM Card and Mobile Network Settings

If Wi-Fi calling is still not working:

  • Remove and reinsert your SIM card carefully.
  • Go to Settings > Network > SIM cards.
  • Make sure VoLTE and Wi-Fi calling options are enabled.
  • If using dual SIMs, set the default calling SIM correctly.

Reset Network Settings

Resetting all network-related settings can help resolve connectivity issues.

Steps:

  • Go to Settings > System > Reset options > Reset Wi-Fi, mobile & Bluetooth.
  • Confirm the action.
  • Reconnect to your Wi-Fi network and re-enable Wi-Fi calling.

Note: This does not delete personal data, but you will need to reconnect to Wi-Fi networks manually.

Try a Different Wi-Fi Network

If Wi-Fi calling fails on one network, try connecting to another.

  • This can help identify if the issue lies with the network or router, not the phone.
  • Some corporate or public networks may block ports used for voice calls.

Contact Your Carrier or Manufacturer

If none of the above steps work:

  • Contact your carrier to ensure Wi-Fi calling is enabled on your account.
  • Ask if any restrictions or outages affect the service in your area.
  • If the feature is supported but missing from your phone, your device’s firmware may need updating by the manufacturer.

Bonus Tips for Reliable Wi-Fi Calling

  • Keep the phone close to the router for stronger signal.
  • Disable battery optimization for the Phone and Carrier services apps.
  • Restart your phone every few days to refresh network settings.
  • Avoid VPNs while using Wi-Fi calling, as they may interfere with call routing.

Conclusion

Wi-Fi calling is a powerful feature that allows you to make calls even when cellular signals are weak. If your Android phone’s Wi-Fi calling isn’t working, start by ensuring the feature is supported and enabled, and then systematically troubleshoot your network, phone settings, and app data.

With a combination of smart settings management and connectivity optimization, you can restore and enjoy smooth, reliable Wi-Fi calling on your Android device. If all else fails, reach out to your carrier or device support for further assistance.

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