Question 6/I - Telemessage service (revised, previously Question 5/I, 1985-1988) Considering (a) that Recommendation F.50 establishes the operational principles for the international telemessage service; (b) that this service is considered to be a means of replacing the telegram service in some relations, a study is required on possible amendments to Recommendations F.50 and F.51, or on possible new Recommendations to develop the telemessage service principles further. Specific points for study are: 1. service aspects of the use of higher level protocols and other technical means for development of the telemessage service; 2. electronic delivery of telemessages (to telex, Teletex, facsimile and other customer terminals); 3. express telemessage service; 4. multi-address procedures; 5. multi-page telemessages; 6. business reply services 7. presentation aspects (e.g. presentation of time and date of acceptance); 8. standardizing formats; 9. Quality of Service, especially regarding the time between acceptance and delivery; 10. possible servicing procedures, in particular the procedure for undelivered items. Note 1 - This Question should be studied in collaboration with the study of MH service when technical means, financial affairs and physical delivery come into force. Note 2 - Collaboration with Study Group III will be required on any operational or Quality of Service aspects affecting charging, accounting or refunds (if applicable) in the telemessage service.