The ITU Telecommunication Standardization Sector (ITU) is a permanent organ of the International Telecommunication Union. The ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to st
ITU-T T.504-1993 history
1993ITU-T T.504-1993 Document Application Profile for Videotex Interworking - Telematic Services Terminal Equipments and Protocols for Telematic Services (Study Group VII) 11 pp