This article is from the Apple II GNO FAQ, by Devin Reade with numerous contributions by others.
A#8.8: The easiest way to do this is through initd(8). Add the following
lines to your /etc/initab file:
# this will initialize the modem port on startup
md:b:once:i:/usr/sbin/runover .ttya /bin/stty 38400
You should of course change "38400" to whatever speed is appropriate
for your site.
 
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