What happens when imessage information is turned off?

This situation will make it impossible to receive information sent through this service.

Imessage is a common device of iphone. Turning off iMessage means that if friends or contacts use iMessage to send messages, they will not receive them. But you can still send and receive ordinary text messages normally.

If the iPhone uses a cellular data connection or Wi-Fi network, you can send text messages and pictures through the carrier's network. However, if you want to send these contents through Imessage, you need to keep the iMessage function on.