ITU Operational Bulletin
Messages complement to ITU-T Recommendation
ITU-T Recommendation Y.3661
Y.3661
Last approved: 30.IX.2025
Referenced in 1 issue of the Bulletin.
2025
1 amendmentDate / Message
Messages complement to ITU-T Recommendation
Last approved: 30.IX.2025
Referenced in 1 issue of the Bulletin.