On the subject of modem commands, I re-noticed a cute freeware utility
called ffd.exe, which is part of an archive called fdial201.zip. It
contains a program for win 3.1 and for dos with a little data-base,
address list type thing that lets you dial voice calls with the modem
by point and click or by nickname on the command line, e.g.,
fdd name <RETURN>
dials whatever phone number you list as linked to ``name''. You can
search for names, use combinatins of numbers and letters, and categorize
pages of entries like ``work'' ``friends'' etc. Where to find it? Used
to be on simtel, but now -- please check any ftp search engine for
fdial201.zip (1995).
Unfortunately, the win 3.1 version includes a retry option, but the
dos version only lets you define the # of seconds till the thing gives
up on calling. For some reason I have to, I surmise, clear the com
port with a command like: echo > com2 before the dos fdd.exe starts
talking to the modem. The win 3.1 version works great.
You can simulate retry in dos with a batch file, but
I got to wondering:
What is a nice way to do retry with voice calls in a batch file?
With some many always busy business lines this would be handy. Something
like this:
:retry
echo atz > com2
echo atdt123456 > com2
wait 4
echo atH > com2
goto retry
Only thing the above needs is a way to check in the batch file if
the call is busy. Some com utility that returns error codes for
modem messages? Since fdd name sends to the modem, you could use
the utility I mentioned for the echo commands above. I expect fdd itself
receives modem status messages, and it does let you define your own
modem send strings -- so I can probably make a batch file that creates
a redial option using fdd.exe and its ``wait x seconds if busy and hangup''
option.
I assume you can run the batch file with the phone at your ear, and
hit any key to disconnect the modem when you get a real person.
Fdd itself appears to send an atH0 sequence when it gets a connect
signal.
Howard Schwartz
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theo "at" ncal.verio.com
theo "at" ncal.verio.com
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