ITU Operational Bulletin
Messages complement to ITU-T Recommendation
ITU-T Recommendation Y.4477
Y.4477
Last approved: 31.X.2021
Referenced in 2 issues of the Bulletin.
2025
1 amendmentDate / Message
Messages complement to ITU-T Recommendation
Last approved: 31.X.2021
Referenced in 2 issues of the Bulletin.