Overtime

[CLAY]

Last night I am at a boy's varsity basketball game. Three man crew doing the games. All 3 are NCAA officials.

Team A steals the ball goes the length of the court for a lay-up as time expires. The shooter misses the shot, the horn sounds. Team A's coach runs on to the court and wants a foul called. The trail official gives the coach a T.

How do you start the overtime period????????????????