Optimum Mobile supports both Voice over Wi-Fi calling and Voice over LTE to provide a seamless experience between Wi-Fi connections and cellular networks. Make sure that you have enabled WiFi calling on your device for the best experience.
Optimum Mobile supports both Voice over Wi-Fi calling and Voice over LTE to provide a seamless experience between Wi-Fi connections and cellular networks. Make sure that you have enabled WiFi calling on your device for the best experience.