What is if a phone is off does it ring?

If a phone is off, it will not ring. When someone tries to call a phone that is off, they will typically be sent straight to voicemail or receive a message stating that the phone is unavailable. However, some modern smartphones have options such as "Wi-Fi Calling" that allow the phone to ring when it is connected to a Wi-Fi network, even if it is turned off. This feature is designed to allow users to make and receive calls even when they are out of range of a cellular network.