| |||
| time division switching | |||
|
conmutacion temporal : 4 phrases in 2 subjects |
| Information technology | 3 |
| Satellite communications | 1 |
| |||
| time division switching | |||
|
conmutacion temporal : 4 phrases in 2 subjects |
| Information technology | 3 |
| Satellite communications | 1 |