iPad FaceTime
iPad - FaceTime group Video camera, option isnt available with group call.
What year and model iPad model do you have/own?
A 2013 iPad Air 1st gen, iPad Mini 2 and 2013 iPad Mini 3 can ONLY do group FaceTime AUDIO calls with NO video.
The internal hardware in these devices is NOT powerful enough to use the FaceTime video feature for group FaceTime calls.
Sorry.