Please help me (again). I've a ISDN-Telephon, wich runs on other PC but not
on mine. The kernel supports ISDN, but although I send the right AT
commmands I dont get a answer of the telephon. But it works perfectly on
windoze :( !!!
Could it be that linux doesnt open the COM1 (ttyS0) port correctly, so that
the phone doesnt get any commands? How can I open this port on C/C++? How
can I check out if the ttyS0 works or not?