Wi-Fi calling is a feature that allows users to make voice calls over a Wi-Fi network instead of using the cellular network. As of October 2023, Ultra Mobile does not officially support Wi-Fi calling for its services. Users may want to check their devices' settings, as some smartphones may allow for third-party applications that enable similar functionalities. It is advisable for users to verify the specific capabilities of their devices and any available apps that might facilitate making calls over Wi-Fi. For the most accurate and up-to-date information regarding services and features, it can be beneficial to visit Ultra Mobile's official website, where details about plans and additional support resources can be found.