ITU M.1540:1994
ITU M.1540:1994 Exchange Of Information For Planned Outages Of Transmission Systems
Table of Contents
1General2Plannedoutagesofinternationalanalogue,PDHand
SDHtransmissionsystems
3Plannedoutagesofnationaltransmissionsystems,
whichaffectinternationalleasedandspecialcircuits
Reference