ITU Operational Bulletin
Messages complement to ITU-T Recommendation
ITU-T Recommendation G.709/Y.1331 (2020) Amd. 4
G.709/Y.1331 (2020) Amd. 4
Last approved: 30.VI.2025
Referenced in 1 issue of the Bulletin.
2025
1 amendmentDate / Message
Messages complement to ITU-T Recommendation
Last approved: 30.VI.2025
Referenced in 1 issue of the Bulletin.