How many seconds does the team have to serve the ball?

In a game of volleyball, a player has 10 seconds to serve the ball. Once you get the ball, wait for the ref to blow his whistle. This indicates that you can serve. If you toss but dont like it, let the ball drop. The ref will blow his whistle and you may start over, with a new 10 seconds. But, you can only re-toss once.