marksmith21's version is the only method that doesn't violate NCAA rules. However, I know that plenty of D1 schools are offering scholarships to underclass kids while on campus. That is a rule violation, but apparently not one that most coaches fear.
Men's and women's lacrosse, and softball, all adopted a rule that prohibits any type of contact before 9/1 of junior year. No "kid calls coach" exception. My impression is that it's slowed down the underclass commitments in those sports, but that might just be my lack of inside knowledge.