mobile cellular telecommunications system, while such subscribers are located within any portion of the licensee's authorised geographic service area where facilities have been constructed and service to subscribers has commenced, if such subscribers are using mobile equipment that is technically compatible with the licensee's base stations. Registration of telecommunications contractors and vendors. 102..(1) Any person who intends to be a contractor of telecommunications wiring or a vendor of a telecommunications or vendors of such equipment or apparatus shall register with the Commission upon payment of the prescribed fees. (2) Upon application and registration, the Commission shall issue such contractor or vendor with a registration certificate in the prescribed form. (3) Any person who conducts any business of wiring, installing or maintaining customer premises equipment or vending of telecommunications equipment without a regristration certificate from the Commission shall be guilty of an offence. Fees 103. The fees structure set out in the Second Schedule shall be applicable in respect of any application made under these Regulations and may be reviewed from time to time by the Minister. 73