How to Receive a FaceTime call on the iPad mini
Of course, you can get FaceTime calls as well as make them on your iPad mini. FaceTime doesn’t have to be open for you to receive a video call. Here’s how incoming calls work:
Hearing the call: When a call comes in, the caller’s name (or e-mail address) prominently displays on the iPad mini’s screen. Depending on how you set up your ringtones, you may simultaneously hear the iPad mini ring.
Accepting or declining the call: Tap Answer to answer the call or Decline if you’d rather not. If your iPad mini is locked when a FaceTime call comes in, slide the green arrow button to the right to answer. To decline it, do nothing and wait for the caller to give up.
Silencing the ring: You can press the Sleep/Wake button at the top of the iPad mini to silence the incoming ring. If you know you don’t want to be disturbed by FaceTime calls before you even hear the ring, flip the side switch on the iPad mini to mute.
You may have to head to Settings to change the function of this switch from Lock Rotation to mute or mute via Control Center. In Settings (or via Control Center), you can also turn on Do Not Disturb to silence incoming FaceTime calls.
Blocking unwanted callers: If a person who keeps trying to FaceTime you becomes bothersome, you can block him or her. Go to Settings–>FaceTime–>Blocked and choose the person’s name from your Contacts.