If dad is not honouring the FaceTime he could say why.
And the child doesn’t have to be plonked in front of the camera to perform as suggested by a pp. the child could be at a table colouring in and grandparents could have a short chat about what child is drawing.... just an example.
Dad is in breach of the court order regarding FaceTime. He is in contempt of court.
Does Israel want full scale war in the Middle East?