A. Data processing and information services that allow data to be generated, acquired, stored, processed or retrieved and delivered by an electronic transmission to a purchaser when the purchaser's primary purpose for the underlying transaction is to obtain the processed data or information;

B. Installation or maintenance of wiring or equipment on a customer's premises;

C. Tangible personal property;

D. Advertising, including but not limited to directory advertising;

E. Billing and collection services provided to 3rd parties;

F. Internet access service;

G. Radio and television audio and video programming services, regardless of the medium, including the furnishing of transmission, conveyance and routing of such services by the programming service provider. Radio and television audio and video programming services must include but not be limited to cable service as defined in 47 United States Code, Section 522(6) and audio and video programming services delivered by commercial mobile radio service providers, as defined in 47 Code of Federal Regulations, Section 20.3;

H. Ancillary services; or

I. Digital products delivered electronically, including but not limited to software, music, video, reading materials or ringtones.

20-B. Vertical service. "Vertical service" means an ancillary service that is offered in connection with one or more telecommunications services that offers advanced calling features that allow customers to identify callers and to manage multiple calls and call connections, including conference bridging services.