Control Where iMessages Appear
Multiple people can share the same Apple ID and still route iMessages to specific devices.
How to Add a New Email Address for iMessage
Add a new email address for iMessage only via Apple’s website. It’s not possible to do this from your iPhone or iPad.
What About FaceTime Calls?
FaceTime works similarly to iMessage. Calls are routed to a phone number or an email address associated with the account; these addresses are turned on by default. If multiple users share an Apple ID, everyone’s FaceTime calls may be sent to all devices on the account. Disable this the same way you disabled iMessage, but instead of going into Messages in Settings, tap on FaceTime. Under You can be reached by FaceTime at, uncheck any email address or phone number whose FaceTime calls you don’t want to receive.