If under Chapter 10.1 (§ 56-265.1 et seq.) a certificate of public convenience and necessity is issued to a telephone company to provide interexchange service, the Commission may, if it determines that such service will be provided on a competitive basis, approve rates, charges, and regulations as it may deem appropriate for the telephone company furnishing the competitive service, provided such rates, charges, and regulations are nondiscriminatory and in the public interest. In making such determination, the Commission may consider (i) the number of companies providing the service; (ii) the geographic availability of the service from other companies; (iii) the quality of service available from other companies; and (iv) any other factors the Commission considers relevant to the public interest. The Commission is authorized to promulgate any rules necessary to implement this provision; provided that any such rules so promulgated shall be uniformly applicable to all telephone companies that are subject to the provisions of this section. The Commission shall permit the detariffing of interexchange service.