This Recommendation defines designations and additional information intended primarily for human-to-human communication between various operators, i.e., network operators or service providers. This Recommendation focuses on human needs for stable and recognizable data formats independent of the media through which they are communicated. Therefore, in order to support the human-to-human communication, the formats defined in this Recommendation will have to be provided at the corresponding human-to-computer interfaces as well. Hence, this Recommendation defines the presentation formats of data at human-to-computer interfaces, but does not define the data communication formats for interfaces between computer systems such as at the telecommunications management network (TMN) X interface, or non-TMN computer interfaces. However, it must be possible to automatically map the human-to-computer formats to the computer-to-computer formats and vice versa. The details of this mapping are for further study.
ITU-T M.1400-2013 history
2015ITU-T M.1400-2015 Designations for interconnections among operators' networks (Study Group 2)
2013ITU-T M.1400-2013 Designations for interconnections among operators' networks Study Group 2
2006ITU-T M.1400-2006 Designations for interconnections among operators' networks Study Group 4