Dictation with vgetty

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I've been hacking around with vgetty, trying to put together a dictation
system.  The only difference between this and voice mail (besides more
reports) is the need for fast-forward, rewind and the ability to start
playback and recording from any point in the file.

Unfortunately, I don't have a lot of time to figure this out.  Someone
more familiar with the code can probably help me, though.  Has anyone
done any work on random access of the .rmd file?

I'm using USR modems, so I'm dealing with GSM, requiring that I honor
the 33-byte frame integrity, and I expect I'll have to work with raw
data.  Using fseek/ftell and a global file position pointer ought to do
it, I think.  If I can get the vm shell to set and and return the
current pointer value, I think I can do the rest in the script.

Thanks in advance for any suggestions, code, etc.

--Moe Pitman
mpitman@three-sixteen.com