If the server touches a line while serving, what is that called? and what is it for the other team?

In tennis, if a server touches the line while serving, it has no impact on the game. It is only when a player steps over the line during service that a judge will intervene. Stepping over the line is considered a foot fault, and results in a second serve. If the fault occurs on the second serve, it is a double fault, and a point is awarded to the opponent.

okay what's the question?