Lieferanten / Hersteller - Datennetztechnik
| Funkwerk Enterprise Communications GmbH |
 |
| LANCOM Systems GmbH |
 |
| aetka Communication Center AG |
 |
| Innovaphone |
 |
| Maxdata |
 |
| Quante |
 |
| Knuerr |
 |
| Rittal |
 |
