https://us.community.samsung.com/t5/Galaxy-S22/Unlocked-wifi-calling/m-p/2460573#M48556 Depends on the carrier I have an unlocked s21 on straight talk/tmobile sim and I have wifi calling use it every day Sat, 10 Dec 2022 17:14:03 GMT MDdaigle 2022-12-10T17:14:03Z