A telecommunications carrier that offers both noncompetitive and competitive services shall offer the noncompetitive services under the same rates, terms, and conditions without unreasonable discrimination to all persons, including all telecommunications carriers and competitors. A telecommunications carrier that offers a noncompetitive service together with any optional feature or functionality shall offer the noncompetitive service together with each optional feature or functionality under the same rates, terms, and conditions without unreasonable discrimination to all persons, including all telecommunications carriers and competitors.