[comp.unix.xenix] Internal modem with xenix286

dirk@altger.UUCP (06/29/87)

Has anyone out there in netland ever tried to get an internal
everex 920 (hayes 1200 baud) modem running with xenix ???
The problem is that always the message 'loose cable ....' appears
when the phone rings the first time. I tried out setting
'ATS0=2\r' by ioctl from a 'c' program and by
'( stty 1200; echo "ATS0=2\r" ) > /dev/tty2a 0<&1' from the shell. The
getty dies very fast (for shure), even disable - set - enable does
not help. When putting the shell setup into /etc/rc (before the getties
are forked) it sometimes works (mostly when it does not need to work).
The getty I described above is put on /dev/tty2A with the standard 
B1200, HUPCL, OPOST, CR1, ECHOE, NL1 setting.

I think the problem is a more technical one. Here in Germany the phone
rings sometimes twice the first time. So I think the DCD is also set
and reset quiet fast everytime the modem sends RING. This will hang
the getty. Even setting 'ATQ1' to disable the RING does not help. I
think it does not turn of the DCD. Have to test it with the scope.

Does anyone know how to get the getty more tolerant with fast switching
DCD ????

Thanks in advance,
dirk :-)                 ...!unido!altger!dirk