ITU Operational Bulletin
Messages complement to ITU-T Recommendation
ITU-T Recommendation X.1400
X.1400
Last approved: 30.IX.2020
Referenced in 2 issues of the Bulletin.
2026
1 amendmentDate / Message
Messages complement to ITU-T Recommendation
Last approved: 30.IX.2020
Referenced in 2 issues of the Bulletin.