Lieferanten / Hersteller - Kommunikationstechnik
| Telecom Behnke |
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| Siemens HiPath |
 |
| Auerswald |
 |
| elmeg |
 |
| Agfeo |
 |
| Fmn |
 |
Distributoren
| Komsa |
 |
| NT Plus |
 |
| Phonet |
 |
