evidence: Use FaceTime with your iPhone or iPad [...] You can use FaceTime over Wi-Fi1 or over mobile data on supported iOS or iPadOS devices.2 FaceTime isn’t available or may not appear on devices purchased in United Arab Emirates. Group FaceTime and FaceTime Audio are not available in China mainland on iPhone and iPad (Wi-Fi + Cellular) models. [...] Tap FaceTime, then tap Use your Apple Account for FaceTime.