Using FaceTime on your iPad is great for making calls, but you might not want to receive calls from every phone number and email address associated with your account. This article explains how to prevent calls from certain accounts from going to all of your devices. This guide applies to iOS 10 or later for iPads and iPhones.
How to Stop Your iPhone from Ringing Other iPhones, iPads, and MacBooks at the Same Time
If you don't want to receive FaceTime calls from certain people, follow these steps:
Open the Settings app on your iPad or iPhone. (Use Spotlight search to find it quickly.)
In Settings, scroll down the left menu and select FaceTime. This will open the FaceTime settings on the right. (On iPhones, scroll down and tap FaceTime to open the FaceTime settings.)
