Path: utzoo!utgpu!watmath!clyde!att!osu-cis!killer!ltf
From: ltf@killer.DALLAS.TX.US (Lance Franklin)
Newsgroups: sci.electronics
Subject: Re: Reading phone tones by computer
Message-ID: <6165@killer.DALLAS.TX.US>
Date: 19 Nov 88 08:44:29 GMT
References: <195@tcville.HAC.COM>
Reply-To: ltf@killer.Dallas.TX.US (Lance Franklin)
Distribution: na
Organization: The Unix(R) Connection BBS, Dallas, Tx
Lines: 27

In article <195@tcville.HAC.COM> ferris@tcville.HAC.COM () writes:
>
> 
>    I am looking for a device that will interface a phone line to a computer
>that will allow the computer to read the tones a caller presses and be able
>to send a digitized or computer generated voice in response to what
>is pressed.

You might check at Radio Shack...I recall that they had a chip that decoded
the tone signals and put out the results on several lines that could probably
be used as input to a parallel I/O port.  They also had a phoneme-oriented
voice generator that could be used to put out the voice.  Of course, you would
also have to add the line-interface circuitry...I beleive Dallas Semiconductor
has a full range of chips that handle this type of thing.  In fact, I seem to
recall that their latest catalog had a 300/1200 baud modem chip that had all
the circuitry to go from the computer bus to the phone wall-socket, and included
a voice-generator...not sure whether it also had a tone-decoder, but I wouldn't
be surprised...If you're interested, drop me a note...I'll check next time I
look at the catalog.
 
Lance

-- 
+-------------------------+ +-----------------------------------------------+
| Lance T Franklin        | | I never said that! It must be some kind of a  |
| ltf@killer.DALLAS.TX.US | | forgery...I gotta change that password again. |
+-------------------------+ +-----------------------------------------------+