Clause 16

the operation of the telecommunication system in the case of which the only agency involved in the conveyance of things thereby conveyed is light and the things thereby conveyed are so conveyed as to be capable of being received or perceived by the eye and without more;

the operation by a person solely for his own use or for the purposes only of his business of a telecommunication line system in the case of which all the apparatus comprised therein is situated either —

on a single set of premises occupied by him; or

in a vehicle, vessel or aircraft or in two or more vehicles, vessels or aircraft mechanically coupled together;

in the case of a telecommunication line system of which all the apparatus therein comprised is let on hire by the Authority, the operation of the system by the person to whom the apparatus is let on hire; and in the case of a system of which part of the apparatus comprised therein consists of apparatus let on hire by the Authority to a person, the operation by him of so much of the system as comprises the lastmentioned apparatus; or

the operation by any person of any electrical apparatus for actuating machinery or for any other purpose than for telecommunication.

in the course of their duties by the officers and men of the armed forces of Singapore constituted under the provisions of any written law relating to armed forces or of any visiting force lawfully present in Singapore;

by the Singapore Police Force;

by the broadcasting authority in the provision of broadcasting and television services under the provisions of the Broadcasting and Television Act (Cap. 83);

by the Singapore Telephone Board in the provision of domestic public telephone service under the provisions of the Singapore Telephone Board Act (Cap. 85).