1.		Message handling and directory services operations and definition of service : recommendations F.400 - F.422, F.500 / International Telecommunication Union Data Publicação: 1989 Tema: Vária
2.		Telematic, data transmission and teleconference services operations and quality of service : recommendations F.160 - F.353, F.600, F.601, F.710 - F.730 / International Telecommunication Union Data Publicação: 1989 Tema: Vária
3.		Telegraph and mobile services operations and quality of service : recommendations F.1 - F.140 / International Telecommunication Union Data Publicação: 1989 Tema: Vária