>Normally a user dials in like procomm...
>How do they connect to us?
>How can someone without a MODEM dial into our BBS?

Is that the only way someone can access your BBS? i.e., This BBS is not connected to the internet? If it is, does it have an IP address? Does ProComm allow TCP/IP connections in addition to a modem connection? PC Anywhere does. If the only way to connect to your BBS is via modem, then the guest must have a modem.