Change Blocked settings in FaceTime on Mac
In the FaceTime app on your Mac, use Blocked settings to set up a list of blocked FaceTime callers. When they call, the call goes unanswered and you aren’t notified. Learn about blocking callers.
Important: If you block a caller on your Mac, the caller is blocked on all your Apple devices where you’re signed in with the same Apple ID. See the Apple Support article Use Continuity to connect your Mac, iPhone, iPad and Apple Watch.
To change these settings, choose FaceTime > Settings, then click Blocked.
Enter FaceTime addresses to block in the list below
Review email addresses or phone numbers of callers that are blocked.
Add a caller to block from your list of contacts.
Remove an email address or phone number for a caller to allow calls from them.