Operational Provisions for the International Public Facsimile Service between Subscriber Stations with Group 4 Facsimile Terminals (Telefax 4) - Series F: Non-Telephone Telecommunication Services; Telematic Services - Public Facsimile Service Study Group
The CCITT (the International Telegraph and Telephone Consultative Committee) is a permanent organ of the International Telecommunication Union (ITU). CCITT is responsible for studying technical, operating and tariff questions and issuing Recommendations o