Driver
| Description | Download |
| Windows DEX (Computer Discount) Billion USB ISDN TA128 | DEX (Computer Discount) Billion USB ISDN TA128 download driver (217 downloads) |
| Windows Billion ISDN TA 128 | Billion ISDN TA 128 download driver (182 downloads) |
| Windows ISDN PCI Card | ISDN PCI Card download driver (177 downloads) |
| Windows FM56C-BFS | FM56C-BFS download driver (113 downloads) |