installing and maintaining communications networks

wireline, wireless and satellite communications services, namely, communications by telephone, local and long distance communications, toll number and pay number services, fiber optic communications, digital fiber optic communications, electronic transmission of data and documents via computer terminals, electronic transmission of data and messages, video teleconferencing; facsimile transmission services, satellite communications, ISDN services, network telephony, voice messaging services, voice message transmission, receipt notification, storage and retrieval via pagers, call forwarding and transfer services, caller identification and call screening services

design of communications networks for others, providing access to a global computer information network