Re: Modem Application

[Sam Valenti <x498@truman.edu>]

Thanks for your help.

Markus Kuhn wrote:

> Sam Valenti wrote:
> > I am trying to get input from a modem (the tones it hears when online).
> > I have no idea how to do this.  I've tried researching in the library
> > and on PAL for anything, but to know avail.  I guess my specific
> > question is how do you do input from a peripheral.
>
> You have to learn how to communicate with an RS-232 serial port from
> Ada, and then you have to read the manual for your modem concerning the
> AT command set that it implements (there are also some TIA/EIA and
> ITU-T recommendations on this subject, but better stick with your
> modem manual). How to access the serial port depends on your operating
> system. Under Linux for instance, just open the file /dev/cua1
> and use the ioctl() C function (via pragma Import or via a POSIX.5
> library such as florist).
>
> Markus
>
> --
> Markus G. Kuhn, Security Group, Computer Lab, Cambridge University, UK
> email: mkuhn at acm.org,  home page: <http://www.cl.cam.ac.uk/~mgk25/>