OT? - How to run a DOS BBS directly attached to a Terminal Server

Hello, This may be OFF TOPIC but I did run WWIV more than 10 years ago. My question is how to run a DOS BBS directly attached to a Terminal Server. That is without a modem. I have a PicoWeb server which basically allows one to connect a serial device directly to ethernet and comunicates via TCP/IP. It works and I can talk with it via Telnet. However I want to run a classic BBS such as WWIV. I have tried my backup copy from circa 1992 and it really wants a modem. I have tried the current version too without luck. So is there any old style BBSes which will work with a direct connection to a terminal (in my case a serial to ethernet convertor)? I would want chains.txt support so I could run the great online games. I could run WWIV with my two V.everything modems back to back but that IS overkill. Is there any other solution? Has anyone tried this? Thanks Max