It's easy to enable iMessage on an iPhone to send messages over cellular data or Wi-Fi with other iPhones, or over Wi-Fi with iPads or Mac computers.

iMessage is one of the reasons Apple users love their devices, but you'll have to do this to receive SMS/MMS text messages on your Mac and iPad.

SMS and MMS text messages can be sent to non-Apple devices as well as another iPhone or another Apple device with Text Message Forwarding turned on," Apple says.