How to prevent iphone and ipad pro from receiving SMS and phone calls at the same time?

The reason why four IPAD of 1 and iPhone4 accept iMessage messages at the same time is mainly because iMessage is opened with the same ID account, and it can be cancelled by turning off the synchronization function. 2. It is best not to use the same AppleID account for Apple devices, especially if the mobile phone has something to do with it, mainly to set up the data information of the backup mobile phone. 3. Turn off to cancel the synchronization of iMessage messages, so that the iMessage function can be turned off; Click Settings-Information -iMessage, and then turn off the iMessage function of both devices. 4. Or log in to different AppleID accounts on iPhone4 and IPAD.