| |||
| ISDN user-network interface structure; channel structure; interface structure | |||
|
structure d'interface usager-reseau : 5 Phrasen in 2 Thematiken |
| Kommunikation | 4 |
| Telekommunikation | 1 |
| |||
| ISDN user-network interface structure; channel structure; interface structure | |||
|
structure d'interface usager-reseau : 5 Phrasen in 2 Thematiken |
| Kommunikation | 4 |
| Telekommunikation | 1 |