Commercial Service means water service provided by the water utility that the customer uses in the promotion of a business or business product that is a source of revenue or income to the customer or others using the premises.
CMU Service means the Central Moneymarkets Unit Service, operated by the Hong Kong Monetary Authority;
Telephone Toll Service is As Defined in the Act.
air service means a flight or a series of flights carrying passengers, cargo and/or mail for remuneration and/or hire;
Vertical service means an ancillary service that is offered in connection with one or more telecommunications services, which offers advanced calling features that allow customers to identify callers and to manage multiple calls and call connections, including conference bridging services.