I have made it so you can log in from a terminal, just type "me(cr)" while it is waiting for ring (at the modems MAX baud setting for that port). It will ask you if you want to go to 19200, say yes and change your term's speed, say no and remain at whatever you were on at. If you don't run it from remote, or a terminal you really won't get what's happening when a user logs in. TRY IT ! (You'll like it)
You NEED a RS-232 SWITCH BOX and switch to the modem to let the system "reset" the modem, then switch to your terminal and type "me". When you are done, switch back to the modem.