9 computers; communications systems, computer information and retrieval systems, telephone and telephone messaging systems, voice mail and voice messaging systems, electronic mail systems, automated attendant systems, interactive voice response systems, database access and processing systems, and fax processing systems, all of the above systems being comprised of computers, computer circuit boards, modems, audio interface and conversion boards and circuits, digital signal processing boards, telephone and data network switches, communications boards, logic boards, network interface boards, telephone and data transmission interface boards and circuits, voice and video analysis and response processors, power supplies, user interface circuits, and computer software for use in voice mail and voice messaging, electronic mail, automated attendant, interactive voice response, word processing and fax processing and instructional manuals sold as a unit therewith