|
Series |
|
Series A:
Organization of the work of the ITU-T. |
|
Series B:
Means of expression: definitions, symbols, classification. |
|
Series C: General telecommunication statistics. |
|
Series D:
General tariff principles. |
|
Series E:
Overall network operation, telephone service and human
factors. |
|
Series F:
Non-telephone telecommunication services. |
|
Series G:
Transmission systems and media, digital systems and
networks. |
|
Series H:
Audiovisual and multimedia systems. |
|
Series I:
Integrated services digital network - ISDN. |
|
Series J:
Transmission of television sound programs and other
multimedia signals. |
|
Series K:
Protection against interference. |
|
Series L:
Construction installation and other elements of outside
plant. |
|
Series M:
TMN and network maintenance: international transmission
systems telephone circuits, telegraphy, facsimile and leased
circuits. |
|
Series N:
Maintenance: international sound programs and television
transmission circuits. |
|
Series O:
Specifications of measuring equipment. |
|
Series P:
Telephone transmission quality, telephone installations,
local line networks. |
|
Series Q:
Switching and signaling. |
|
Series R:
Telegraph transmission. |
|
Series S:
Telegraph services terminal equipment. |
|
Series T:
Terminals for telematic cervices. |
|
Series U:
Telegraph Switching. |
|
Series V:
Data communication over the telephone network. |
|
Series X:
Data networks and open system communications. |
|
Series Y:
Global information infrastructure. |
|
Series Z:
Programming languages. |
