************************************
                                    WELCOME TO

                                       MCI

                              DATA SERVICES DIVISION
                       ************************************

   This system was formerly called "BT's World Wide Information Service".
   On January 31, 1994, MCI signed a contract for the purchase of BT
   North America.  BT North America is now a part of MCI's Data Services
   Division.  MCI will continue to maintain this system with international
   information for both MCI and BT customers until further notice.

   For Questions or Assistance Regarding this Service, Please Call our
   Global Customer Support:

               Within the U.S.   (800) 628-3497 (for fault reporting)
                                 (800) 937-2862 (for general information)
               Outside the U.S.  1 (215) 666-1770


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                        WORLDWIDE INFORMATION SERVICE
                                  INDEX
==============================================================================


    1.  Direct Dial & Outdial Worldwide Access

       1.1.  Access Location Index and Country Abbreviations
       1.2.  Worldwide Access numbers
       1.3.  Access Numbers for a Specific State or Country
       1.4.  Access Numbers for a Specific Speed or Service
       1.5.  Regional Bell Operating Company (RBOC) Access Numbers
       1.6.  Access Change Notification
         1.6.1.  Recent Changes - International and North America
         1.6.2.  Scheduled Changes - Additions/Deletions/Moves of
                 Access Numbers/Services/Nodes - North America only
       1.7.  Scheduled Outages and Service Interruptions
       1.8.  X.121 Dialup Origination Addresses
       1.9.  Search by City, State or Area Code

    2.  Database and Timesharing Services

       2.1.  Company Index
       2.2.  Service Index
       2.3.  Information on a specific Company or Classification
       2.4.  Passport to Information Database Profile Form


    3.  International Data Network Services

       3.1.  Descriptions and Locations of International Services
         3.1.1.  Descriptions of International Services
         3.1.2.  Glossary of Terminology
       3.2.  Detailed Information on a Specific Country
       3.3.  Available for Future Development
       3.4.  Outbound Rates for a Specific Country

    4.  Product Information

       4.1.  Available For Future Development
       4.2.  Network Certified Products
         4.2.1.  X.25
           4.2.1.1.  Category and Computer Index
           4.2.1.2.  Detailed Information on a Specific Vendor/Product
           4.2.1.3.  Detailed Information on a Specific Vendor/Category
         4.2.2.  Personal Computer Software
         4.2.3.  Terminals (Async-to-3270 Service)
         4.2.4.  Modems (X.PC)
       4.3.  EDI*NET Certified Products (North America)
       4.4.  EDI*NET Certified Products (United Kingdom)

    5.  Available For Future Development

    6.  Worldwide Assistance Directory

       6.1.  Worldwide Sales Office Locations
       6.2.  Worldwide Help Desk Phone Numbers
       6.3.  Terminal Identifiers
       6.4.  Logon Options
       6.5.  Password Change Procedures
       6.6.  Network Messages
       6.7.  Cause and Diagnostic Codes
       6.8.  Glossary of Network Terms

    7.  Technical and User Documentation

       7.1.  List of Technical and User Documentation
       7.2.  Information on a Specific Technical or User Document
       7.3.  Recently Released Documentation
       7.4.  Ordering Information

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