How to Block Someone on FaceTime

Wait for the FaceTime call to be placed by the user you wish to block.
Tap the red 'Decline' button on the iPhone's screen when the incoming FaceTime call appears.
Repeat anytime a call is placed by that FaceTime user.
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How to Video Chat on Your iPad (3 Steps)

Touch 'Contacts' on the main screen and then select a contact to video chat with.
Touch 'FaceTime' on the Info screen to initiate a call. If the contact declines the call or fails to answer, the message 'FaceTime Unavailable' appears; if the contact accepts the call, the person's camera feed appears.
Touch the microphone button to enable or disable audio, touch the camera button to switch to the front or back camera, and touch 'End' to end the call.
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