The umpire assists the referee.
The 2nd referee assists the 1st referee.
NCAA Division I college volleyball referee's earned $200 per event. Most college volleyball reveries do not have an annual contract.
The referee in Volleyball has the final say on out/in. They have 25 hand signals at the ready to make the most accurate decision when in a Volleyball game. There is the 1st Referee, 2nd Referee and the Linesmen which contribute to the decision whether it's in or out.
I have played volleyball for 2 years now, and anytime anyone had their foot on the line, the referee called it and we lost the point. So, no it is not legal.
The referee's whistle.
umpire scorer referee
The first referee is the official in charge.
it varies depending on the height of the referee. The referee must be about 1metre above the net.