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Phone calls and messages

Wi-Fi calling explained: when it helps and how to turn it on

Updated 1 min readCelestial Infosoft

What Wi-Fi calling is, which phones and carriers support it, how to enable it on Android and what to know about emergency calls.

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Wi-Fi calling lets your phone place and receive normal calls and texts over a Wi-Fi network when mobile signal is weak.

When it helps

  • Basements, thick-walled buildings or rural homes with poor signal.
  • Abroad, where it may reduce roaming charges for calls home (check your plan).

How to turn it on

  1. Open Settings → Network and internet (or Connections).
  2. Tap Calls or SIMs, then Wi-Fi calling.
  3. Switch it on. If it is missing, your carrier or phone may not support it.

Some carriers ask you to confirm an emergency address the first time.

Making it reliable

  • Connect to a stable Wi-Fi network and keep the phone updated.
  • A strong 5 GHz or 2.4 GHz signal near the router helps. Very busy public Wi-Fi may be poor.
  • If calls drop, toggle Wi-Fi calling off and on, then restart.

Your calls still need the right app. See how to choose a default phone app and call forwarding.

Frequently asked questions

Do I need an app for Wi-Fi calling?

Usually not. It is built into the phone and enabled by your carrier. Your phone number stays the same.

Does it use my mobile data?

It uses the Wi-Fi connection, not mobile data. Normal call charges from your plan may still apply.

Do emergency calls work over Wi-Fi?

They can, but your carrier may ask you to register an address. Check your carrier's instructions.

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