Hi Shawn
If you would like a premade board, the hams use such an interface for
internet connected radio repeaters. Check out www.irlp.net. The board is
an audio interface to a radio transceiver and includes a dtmf decoder
chip that is read through the parallel port. It is not hard to build up
a decoder from the chip (Mitel mt8870de) and about 4 or 5 parts if you
want to build one.
cheers

On Tue, 2001-10-09 at 14:07, Shawn Yates wrote:
> Hello all,
>
>         I need to make a computer receive DTMF numbers.  I can do it using a
> modem (or other card in the PC) and software, or I could make a hardware box
> that decodes DTMF into ASCII and sends it in the serial port.  Is either one
> of these available already so I don't have to invent it?  Which would be
> easier / cheaper?
>
> Any input or thoughts appreciated.
>
> Shawn
>
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=====================================================================
Lawrence Glaister VE7IT              mailto:lg@jfm.bc.ca
1462 Madrona Drive                   http://jfm.bc.ca/
Nanoose Bay, B.C.                    http://members.home.com/cncstuff
Canada          V9P 9C9              http://gspy.sourceforge.net
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