Records have been divided in six groups:1. New Business - Execunet: (i. Business Plan; ii. Operations; iii. Status Reports; iv. Court/FCC); 2. Marketing/Sales; 3. Department Administration; 4. Corporate Business; 5. Corporate Administration Subject Files; 6. Regulatory. Records of this sub-series document MCIT corporate activities starting with development, planning and implementation of Execunet and other services offered by MCI in the 1970's [Quickline, Telemanagement, Tel-analysis], which are described in the first four groups, reflecting Roberts office's filing organization. The fifth group contains material from 1980's and presents new directions of MCI business development: Major Account, International Account and Executive Account programs, Public Phone Access project, Sharers and Resellers services, Teleconferencing. Corporate and divisional business plans and budgets are also presented in the group. The sixth group accumulates important FCC, state regulatory agencies and Court of Appeal decisions on MCI's and its competitors' services. Organized alphabetically within groups.