digital switch
| matrix subsystem
| digital switch | |
| commun. | digital central |
| digital switching | |
| commun. IT R&D. | digital kobling |
| matrix subsystem | |
| commun. | matrixsubsystem |
| |||
| digital kobling | |||
| digital omkobling | |||
| |||
| digital central | |||
|
digital switch : 18 phrases in 3 subjects |
| Communications | 5 |
| Electronics | 6 |
| Information technology | 7 |