Wi-Fi calling isn't working on the phone

Symptoms

• Calls fail to connect over Wi-Fi while cellular calls still work
• Phone shows 'Wi-Fi Calling' unavailable or grayed out
• Calls drop specifically when connected to Wi-Fi calling
• Wi-Fi calling worked before and stopped after a phone or router update

Likely causes

• CommonWi-Fi calling feature turned off in phone settingsThis is a separate toggle from regular Wi-Fi and needs to be enabled specifically.
• CommonUnstable or slow Wi-Fi connectionWi-Fi calling needs a reasonably stable connection; a weak or congested network can cause call failures.
• PossibleCarrier account not provisioned for Wi-Fi callingSome carrier plans or phone models require activation or a compatible plan for this feature.
• PossibleRouter blocking the specific ports Wi-Fi calling usesRare, but some strict router firewall settings can interfere with the VoIP-style traffic Wi-Fi calling relies on.

What to do

1. Check phone settings for 'Wi-Fi Calling' (often under Phone or Cellular settings) and make sure it's toggled on.
2. Confirm you're connected to a stable Wi-Fi network with decent speed, not just any weak or public network.
3. Restart the phone after enabling or checking Wi-Fi calling settings.
4. Update the phone's software to the latest version, since carrier settings updates often accompany OS updates.
5. Contact your carrier to confirm Wi-Fi calling is enabled and supported on your specific plan and phone model.
6. If it fails only on your home network specifically, restart the router, and check whether a strict firewall or 'SIP ALG' setting is enabled in the router (disabling this sometimes helps VoIP-style calls).
7. Test Wi-Fi calling on a different Wi-Fi network (like a friend's or a coffee shop's) to isolate whether it's your phone/carrier or your specific home network.

When to call a pro

If Wi-Fi calling fails on all networks, contact your carrier's support, since this often requires an account-level fix on their end.

Safety