ITU Operational Bulletin
Messages complement to ITU-T Recommendation
ITU-T Recommendation F.751.31
F.751.31
Last approved: 30.XI.2025
Referenced in 1 issue of the Bulletin.
2026
1 amendmentDate / Message
Messages complement to ITU-T Recommendation
Last approved: 30.XI.2025
Referenced in 1 issue of the Bulletin.