When the petition is filed, the court shall issue a summons commanding the child, his resident parents, and such other persons as the court deems proper, to appear before the court at a designated time and place. The summons shall command the parents to appear to answer the petition at a designated time in accordance with Article 646 and may also command the presence of necessary participants for a prehearing conference convened in accordance with Article 646.1.
La. Ch.C. § 636