a. Must serve from behind the restraining line(end line) until after contact.
b. May be served underhand or overhand.
c. Ball must be clearly visible to opponents before serve.
d. Served ball may grazed the net and drop to the other side for point.
e. First game serve determine by a volley, shall be served by the previous game loser.
f. Serve must be returned by a bump only. No setting or attacking serve.