- Ball IN: point the flag down towards the floor.
- Ball OUT: raise the flag vertically.
- Ball TOUCHED: raise the flag and touch its top with the palm of the free hand.
- Crossing space fault / ball touches antenna / server foot fault: wave the flag above the head and point to the antenna or the line.
- Judgement impossible: raise and cross both arms and hands in front of the chest.
Ball in
Ball out
Touched
Antenna / foot fault