Try this:
cat </dev/tty<their number>
If this doesn't work, try this one:
cat </dev/tty<#> echo
It's been a while, so don't quote me on this. I'm just trying to help :-)
Robert S. Radvanovsky spock%calstate at cunyvm.cuny.edu (Internet)
California Polytechnic Univ. spock at calstate (BITNET)
Pomona, California