A little more info:

I get this error when I try to fax:

Trying fax device '/dev/tty4c' . . . cannot open
Trying fax device '/dev/tty4d' . . . cannot open
cannot access fax device (locked?)
comman exited with status 2

I read somewhere (maybe the sendfax docs) that for netbsd /dev/cua should
be used instead of /dev/tty.  Any ideas on whether that's true?  How to
make that happen?

Thanks,
Jeff