ITU Operational Bulletin
Messages complement to ITU-T Recommendation
ITU-T Recommendation P.863.1
P.863.1
Last approved: 30.IV.2013
Referenced in 3 issues of the Bulletin.
2019
1 amendmentDate / Message
Messages complement to ITU-T Recommendation
Last approved: 30.IV.2013
Referenced in 3 issues of the Bulletin.