How to Fix iPhone 16 Wi-Fi Calling Not Working After iOS 26.1 Update

iPhone 16 Wi-Fi Calling Not Working After iOS 26.1 Update usually means carrier settings did not refresh correctly, Wi-Fi Calling was turned off during the update, or the iPhone is not registering the feature on the network.

For related help, also see How to Fix iPhone 16 CarPlay Not Connecting or Keeps Disconnecting, How to Fix iPhone 16 Notifications Not Working After iOS 26.1 Update, How to Fix iPhone 16 Mail App Not Working After iOS 26.1 Update, and the iPhone 16 hub.

Method 1: Restart the iPhone 16 and router

A simple restart can restore carrier registration and Wi-Fi Calling service.

1. Restart the iPhone.
2. Restart the Wi-Fi router as well.
3. Wait for the phone to reconnect, then test a call.

Method 2: Turn Wi-Fi Calling off and back on

The feature may simply need to re-register after the update.

1. Open Settings > Apps > Phone > Wi-Fi Calling.
2. Turn Wi-Fi Calling on This iPhone off.
3. Turn it back on and accept any carrier prompt.

Method 3: Check carrier settings updates

Wi-Fi Calling frequently breaks when the carrier bundle is outdated.

1. Go to Settings > General > About.
2. Wait several seconds for a carrier update popup.
3. Install it if one appears.

Method 4: Confirm Wi-Fi Calling is still enabled on your account

Some carriers require you to re-verify emergency address or account permissions.

1. Open your carrier app or account page.
2. Check that Wi-Fi Calling is active on the line.
3. Update the emergency address if requested.

Method 5: Reset network settings

This clears bad wireless and carrier configuration data without removing apps or photos.

1. Open Settings > General > Transfer or Reset iPhone > Reset.
2. Tap Reset Network Settings.
3. Reconnect to Wi-Fi and test again.

Method 6: Try another Wi-Fi network

Some routers or firewall settings block the ports needed for Wi-Fi Calling.

1. Connect the iPhone 16 to another trusted Wi-Fi network.
2. Turn on Airplane Mode, then manually enable Wi-Fi.
3. Try placing a call and see if Wi-Fi Calling appears.

Method 7: Install the next iOS or carrier patch

If the issue started right after iOS 26.1, Apple or your carrier may already be fixing it.

1. Check Settings > General > Software Update.
2. Install any newer version available.
3. Contact your carrier if Wi-Fi Calling still refuses to register.

If the problem continues after all of the steps above, visit the main iPhone 16 page for more troubleshooting guides.