I'm using telnetd.device and it works perfectly and has been for years.
| Sysop: | DaiTengu |
|---|---|
| Location: | Appleton, WI |
| Users: | 1,135 |
| Nodes: | 10 (0 / 10) |
| Uptime: | 31:31:13 |
| Calls: | 14,551 |
| Calls today: | 2 |
| Files: | 186,454 |
| D/L today: |
14,944 files (4,456M bytes) |
| Messages: | 2,570,071 |