Operational Bulletin No 658 - (15.XII.19
Operational Bulletin No 658 - (15.XII.1997) (15.12.1997)
Operational Bulletin No. 744 (15.VII.200
Operational Bulletin No. 744 (15.VII.2001) (15.07.2001)
Operational Bulletin No. 731 (1.I.2001)
Operational Bulletin No. 731 (1.I.2001) (01.01.2001)
Operational Bulletin No. 659 (1.I.1998)
Operational Bulletin No. 659 (1.I.1998) and Annexed List: List of Data Country or Geographical Area Codes (Complement to ITU-T Recommendation X.121) (Position on 31 December 1997) (01.01.1998)
Tecnologías de planta exterior para rede
Tecnologías de planta exterior para redes públicas (1991)
Earthing of Telecommunication Installati
Earthing of Telecommunication Installations (1st edition, 1976)
Operational Bulletin No. 708 (15.I.2000)
Operational Bulletin No. 708 (15.I.2000) (15.01.2000)
E ITU-T REC H 222.0 03/17
Information technology – Generic coding of moving pictures and associated audio information: Systems
Information technology – Open Systems In
OSI Directory - Abstract service definitions
Information technology – Open Systems In
OSI Directory – Distributed Operation
Information technology – Open Systems In
OSI Directory – Protocol
E ITU-T REC X 1051 04/16
Code of practice for information security in telecommunications organizations