This isn't possible - it's like how your phone works today. You can click ignore on a call or choose not to read a text right away, but you can't turn off your ability to be contacted. There's probably a do not disturb process that works for when someone is busy at work or taking a nap, but the "video" would still be sent. It's just that she wouldn't take a "video call," if that's what you meant. Like today, you still have to accept your facetime call!
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This isn't possible - it's like how your phone works today. You can click ignore on a call or choose not to read a text right away, but you can't turn off your ability to be contacted. There's probably a do not disturb process that works for when someone is busy at work or taking a nap, but the "video" would still be sent. It's just that she wouldn't take a "video call," if that's what you meant. Like today, you still have to accept your facetime call!