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access charge already America's Communications Revolution American Bell American Telephone anti-trust settlement assets AT&T Baby Bell basic Bell Labs Bell System Bell telephone break-up building cable cent centre Citicorp communications network competition competitors computer data consumer costs customers data communications deregulated developing divestiture Dr Ross electronic exchanges expected fibre optic Guy de Jonquieres huge increasingly industry joint venture Labs launched long distance telephone manufacturer ment Merrill Lynch microwave Mitel monopoly month munications ness Northern Telecom Operates long distance operating companies panies PBXs personal computer plans president Revenue rivals Rolm Sageman Satellite Business Satellite Business Systems says scribers sell subscriber equipment subsidiary switching telecommunica telecommunications Telephone and Tele telephone business telephone company telephone service Teleport television tions traffic users vice Videotex Western Electric Western Union world's largest Yankee group York