10 Supplement to Official Gazette [] 3th March] for such services, including emergency services, public pay phone services and directory information servIces; (b) promote the interests of consumers, purchasers and other users of broadcasting and telecommunication services in respect of the prices charged for, and the quality and variety of, such services and equiment supplied in connection with such services;- (c) promote and maintain competition among persons engaged in commercial activities for, or in connec..... tion with, the provision of broadcasting and telecom'L','11lunication services and promote efficiency and '::economy on the part of such persons; and (d) Numbering system Powers of entry and inspection for ensuring compliance with the Act promote the goals of universal service. 13. The Minister shall establish and maintain a non-discriminatory and efficient numbering system to be applied by all licensees oftelecommunication services. 14. (1) Any public officer authorised in writing by the Minister may, for the purpose of ensuring that the provisions of this Act are compl ied with, at any reasonable time (i) enter any building or place or go Onl~jaL ship or aircraft; (ii) inspect any broadcasting apparatus or telecommunication apparatus installed or used in any building, place, ship or aircraft; (iii) call for and inspect any licence granted in accordance with this Act. I + (2) Any person for the time being in charge of any building, place, ship or aircraft in respect of which any powers are exercised under subsection (1) shall afford all reasonable faci lities for entry and inspection under that subsection.