Wi-Fi Calling is an awesome feature some versions of the Samsung Galaxy S9 have that allows you to make calls using the Wi-Fi network instead of the wireless provider’s network. It’s useful where your Wi-Fi signal might be stronger than the wireless signal.
Not all versions of the Galaxy S9 have Wi-Fi calling available as an option. Your wireless provider must allow this feature. You can turn Wi-Fi Calling on with these steps.
- Go to “Apps” > “Settings” > “Connections” > “Advanced Calling” > “Activate Wi-Fi Calling“.
- If prompted, enter a valid emergency address that would be useful if you have to place an emergency call.
AT&T, Cricket, MetroPCS, and T-Mobile
- Go to “Apps” > “Settings” > “Connections” > “Wi-Fi Calling” > “On“.
Once enabled, calls will automatically be routed through Wi-Fi when your wireless carrier’s signal is low.