[wplug] Passing AT commands direct to modem?

Jonathan S. Billings wbanguna at gmail.com
Mon Feb 18 17:25:00 EST 2008


On Mon, Feb 18, 2008 at 04:03:15PM -0500, larry at daberko.com wrote:
> My employer is wanting to automatically forward our main lines to an
> answering service after hours.  The answer was to set up a linux box to
> dial the numbers needed.
> 
> I have the AT command string and I tested it with cu -l /dev/ttyS0
> interactively.  The string is:
> ATDT*72W412-555-1234@;H
> (for those who don't know... W=wait for dialtone, @=wait for silence)
> 
> Now how do I send that via a script?  I don't see a way for cu to pass the
> string from the command line.  And for some reason, echo ATDT... >
> /dev/ttyS0 has no effect.
> 
> Linux Fedora Core 6 is the OS.
> 
> I'm open to troubleshooting the echo issue or using another program.  This
> is the last hurdle in my way.

Actually, this sounds like a great use of the 'chat' program used for
PPP and SLIP connections.

If you don'tlike that, there's always 'cu' and 'expect'.

-- 
Jonathan Billings <wbanguna at gmail.com>


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