gnu@hoptoad.UUCP (02/17/87)
In article <8702162244.AA21652@ucbvax.Berkeley.EDU>, CJB8753@TAMVENUS.BITNET writes: > My USRobotics Courier 2400 has a dip switch (#9) > that controls what happens when the user performs the escape code process. > If the dip switch is set up, the "modem disconnects and displayes NO CARRIER". > If the dip switch is set down, the "mode returns to command state and > displayes OK". On my dialin/out modems, I have this switch set to disconnect for a good reason. A user who called in on the modem could write a program that prints "+++" to the modem from the Unix system, takes control of it, and then dials calls which go onto my bill. Of course, the program would have to manage the data transfer by itself (unless the user was really smart and wrote something that would steal one phone line while they hung up and called in on another line). With the switch set to disconnect, their process will get a HUP and writes to the line will be ignored, I hope. -- John Gilmore {sun,ptsfa,lll-crg,ihnp4}!hoptoad!gnu gnu@ingres.berkeley.edu Love your country but never trust its government. -- from a hand-painted road sign in central Pennsylvania