digital switch
| matrix subsystem
| digital switching | |
| IT | comutação digital |
| matrix subsystem | |
| commun. | subsistema matricial |
| |||
| comutação digital | |||
|
digital switch : 19 phrases in 4 subjects |
| Communications | 2 |
| Electronics | 6 |
| Information technology | 10 |
| Patents | 1 |