| |||
| circuit switching system | |||
| circuit switching | |||
| |||
| packet switching; packet transfer | |||
|
commutation de circuits : 66 phrases in 8 subjects |
| Automated equipment | 11 |
| Aviation | 1 |
| Communications | 24 |
| Computers | 2 |
| Electronics | 15 |
| General | 1 |
| Information technology | 9 |
| Telecommunications | 3 |