| 계열
|
설명
|
| A 계열
|
Organization of the work of ITU-T
|
| B 계열
|
Means of expression: definitions, symbols, classification
|
| C 계열
|
General telecommunication statistics→ 일반 통신 통계
|
| D 계열
|
General tariff principles
|
| E 계열
|
Overall network operation, telephone service, service operation and human factors
|
| F 계열
|
Non-telephone telecommunication services→ 비전화 통신 서비스
|
| G 계열
|
Transmission systems and media, digital systems and networks
|
| H 계열
|
Audiovisual and multimedia systems
|
| I 계열
|
Integrated services digital network
|
| J 계열
|
Cable networks and transmission of television, sound programme and other multimedia signals
|
| K 계열
|
Protection against interference
|
| L 계열
|
Construction, installation and protection of cables and other elements of outside plant
|
| M 계열
|
Telecommunication management, including TMN and network maintenance
|
| N 계열
|
Maintenance: international sound programme and television transmission circuits
|
| O 계열
|
Specifications of measuring equipment
|
| P 계열
|
Telephone transmission quality, telephone installations, local line networks
|
| Q 계열
|
Switching and signalling
|
| R 계열
|
Telegraph transmission
|
| S 계열
|
Telegraph services terminal equipment
|
| T 계열
|
Terminals for telematic services
|
| U 계열
|
Telegraph switching
|
| V 계열
|
Data communication over the telephone network→ 전화망에서의 데이터 통신
|
| X 계열
|
Data networks, open system communications and security→ 데이터망, 개방형 시스템의 통신 및 보안
|
| Y 계열
|
Global information infrastructure, Internet protocol aspects and next-generation networks
|
| Z 계열
|
Languages and general software aspects for telecommunication systems
|
