I'm using telnetd.device and it works perfectly and has been for years.
| Sysop: | DaiTengu |
|---|---|
| Location: | Appleton, WI |
| Users: | 1,073 |
| Nodes: | 10 (0 / 10) |
| Uptime: | 233:58:32 |
| Calls: | 13,783 |
| Calls today: | 1 |
| Files: | 186,987 |
| D/L today: |
5,203 files (1,651M bytes) |
| Messages: | 2,435,351 |