This article is from the alt.comp.hardware.homebuilt Frequently Asked Questions. It is maintained by Mark Sokos (msokos1@gl.umbc.edu) with many contributions from others.
http://www.hut.fi/~then/docs/caller_id.html http://www.zilog.com/app.html
ITU Technologies, makes a Caller ID to PC interface kit http://www.itutech.com
 
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