[Coco] DriveWire virtual modems

[Aaron Wolfe]

I've finished up virtual modems in the DriveWire server, and also
(finally!) fixed the bug in multi read.  Running Supercomm and
connecting out to internet BBSes works very well.  There are a
surprising number of these BBSes running, a good list is at
http://www.telnetbbsguide.com   Too bad most of them seem to run
Windoze.  I'm even more determined to get an OS-9 BBS up after
spending some time today on the Coco connecting to other boards.

The virtual modems support a good range of Hayes commands.  It should
be easy to use any OS-9 terminal program to connect out.  Code at
http://aaronwolfe.com/coco

Next I need to finish dial in and emulate some rs232 controls, which
won't be much work.  Then I really need to try and help Wayne decode
RiBBS! :)

-Aaron