Automatic answer incoming calls with auto-voice

[ditendra]

Is there such app or maybe Android has such feature that incoming calls could be answered automatically after few seconds if I don't answer my phone with an automatic voice, like "Hi, I'm busy, call me later", or something like that? I've seen such things in movies, I'm wondering is it possible in real life too, or it's just movies?
I noticed quick responses in menu. But they are a little different things from what I want. They let you send SMS & you do it manually.