I used an iphone and switched to another mobile phone. How to receive messages from others through imessage?

Imessage is dedicated to Apple devices and is handled by Apple servers! If other mobile phones can't receive it, Apple devices will automatically judge whether the other mobile phone number can receive imessage, and then automatically convert SMS or imessage. If you use an Apple account to send information, you can only use an Apple device to receive information! Please accept it if you are satisfied, and ask if you don't understand it.