I'm using telnetd.device and it works perfectly and has been for years.
| Sysop: | DaiTengu |
|---|---|
| Location: | Appleton, WI |
| Users: | 1,138 |
| Nodes: | 10 (0 / 10) |
| Uptime: | 12:14:56 |
| Calls: | 14,617 |
| Calls today: | 3 |
| Files: | 186,485 |
| D/L today: |
15,602 files (5,284M bytes) |
| Messages: | 2,581,644 |