| Standardization Area |
Code |
Standardization Domain |
Code |
| Generic |
00 |
Generic |
00 |
| Cables/network
component |
01 |
Terminology |
01 |
| Public Switched
Telephone Network (PSTN) |
02 |
Terminals
equipment adaptor |
02 |
| Leased lines |
03 |
Interfaces/protocols |
03 |
| Integrated
Services Digital Network (ISDN) |
04 |
Numbering, Addressing |
04 |
| Signalling
networks |
05 |
Routing |
05 |
| Intelligent
Network (IN) |
06 |
Signalling |
06 |
| Broadband
Integrated Services Digital Network (B-ISDN). Asynchronous Transfer Mode (ATM) |
07 |
Interworking |
07 |
| Data networks |
08 |
Synchronization |
08 |
| Telecommunications
Management Network (TMN). Customer Network Management (CNM) |
09 |
Switching |
09 |
| Universal
Personal Telecommunication (UPT) |
10 |
Network
capabilities |
10 |
| Plesiochronous
Digital Hierarchy (PDH) |
11 |
Tariff/charging/accounting |
11 |
| Synchronous
Digital Hierarchy (SDH) |
12 |
Network
Performance (NP). Quality of Service (QOS) |
12 |
| Fibre To The
Home (FTTH). Fibre To The Curb (FTTC). Fibre In The Loop (FITL) |
13 |
Traffic
management |
13 |
| Wireless |
14 |
Traffic
engineering |
14 |
| IMT-2000. Mobile |
15 |
ElectroMagnetic
Compatibility (EMC). Protection. Safety |
15 |
| Satellite |
16 |
Signals
processing |
16 |
| Software/application |
17 |
Languages for
telecommunications |
17 |
| Other |
18 |
Human factors |
18 |
| Telephone
service |
19 |
Service
definition |
19 |
| Facsimile |
20 |
Bearer services |
20 |
| Bureau services |
21 |
Teleservices |
21 |
| Telex |
22 |
Supplementary
services |
22 |
| INTEX |
23 |
Audiovisual/Multimedia |
23 |
| Public Switched
Telephone Network (PSTN) based services |
24 |
Service
management |
24 |
| Data services |
25 |
Fault,
Configuration, Accounting, Performance and Security Management (FCAPSM) |
25 |
| Videotex |
26 |
Testing |
26 |
| Directories |
27 |
Architecture |
27 |
| Cards |
28 |
|
28 |
| Message Handling
Systems (MHS) |
29 |
Security |
29 |
| AudioVisual
MultiMedia Systems (AVMMS) |
30 |
Transmission
system/equipment |
30 |
| Sound and
television (TV) transmission |
31 |
Infrastructure |
31 |
| Open Systems
Interconnection (OSI) |
32 |
System
management |
32 |
| Optical
Networking |
33 |
User suitability |
33 |
| Access Networks |
34 |
Others |
34 |
| No area
specified |
99 |
No domain
specified |
99 |