Question 16/I - International public directory services (expanded, previously Question 14/I) Considering (a) the existence of multiple CCITT defined services including telegraph, telex, telephone and Telematic services; (b) the needs of administrations including RPOAs for directory services; (c) the growing need of users for directory services; (d) the continuing need for integrated solutions to provide directory services; (e) the progress already made by the CCITT in defining international public directory services in Recommendation F.500 and in developing system specifications in the X.500-Series; (f) the increasing interest in the development of ISDN with a consequent requirement for directory services; (g) the existing and proposed efforts to develop computerized directory assistance for operators based on Recommendation E.115; (h) the interest in Electronic Data Exchange (EDI); (i) the obvious concern for the security of data including authentication of users of directory services; (j) the ongoing requirements of MH services for directory services; (k) the interest of the UPU in directory services, 1. What enhancements to Recommendation F.500 are required to support the continuing development of CCITT defined services? 2. How can the needs of administrations including RPOAs be specifically addressed? 3. What measures need to be taken within the F.500 environment to assure that users' needs are given the highest priority? How can operator requirements be accommodated? 4. What enhancements to Recommendation F.500 or what new Recommendations may be required to ensure that an integrated solution meets the specific directory needs of individual CCITT defined services? In other words, what additional developments are required to accommodate use of the directory services by, e.g. Videotex? 5. What enhancements to Recommendation F.500 will be needed to meet the developments of ISDN? 6. How will the international public directory service support the emerging standardization of EDI? 7. What developments are required to take account of extensive MH service use of the directory services? 8. How should the service description encompass security/authentication issues? 9. How can the directory services Recommendation be expanded to establish subscriber/user access to a given service?