How does ipad read short messages on ipnone?

Set the iPad and iPhone to receive SMS at the same time through the iMessages function on both devices. The setting method is as follows

1. Two devices are logged into the same apple id account.

2. Open the information in iPhone settings.

3. Click to open the iMessages function switch.

4. Similarly, open Messages in the iPad settings.

5. Click to turn on the iMessages function switch.

6. After completing the above settings, iPad and iPhone can receive SMS at the same time.