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If the data is being routed to an LA120, it is likely serial ASCII.
As such, it can be fed into a typical host serial port, or into a
DECserver serial port.
As for examples of programming the terminal device driver, see the
I/O User's Manual -- there's a large example of programming there.
Also see the OpenVMS Programming Concepts manual. Also look in the
SYS$EXAMPLES: area.
Realize that there's nothing particularly special here -- one could
easily (slightly) modify any existing program that reads user input
in from the local terminal and writes it to a file to solve this
problem.
I'd open the device and the file, and I'd fall into a loop that issues
a sys$qiow call, and -- when the call completes -- writes the data to a
log file.
Be aware that various vendors including Digital also market products
that communicate with various PBX switches -- this is often refered
to as "Computer Integrated Telephony" or CIT.
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