Notwithstanding any other provision of this chapter, no telecommunications company providing noncompetitive services shall, as to the pricing of or access to noncompetitive services, make or grant any undue or unreasonable preference or advantage to itself or to any other person providing telecommunications service, nor subject any telecommunications company to any undue or unreasonable prejudice or competitive disadvantage. The commission shall have primary jurisdiction to determine whether any rate, regulation, or practice of a telecommunications company violates this section.