[Supressed message) Hi Stewart: I suggest that you use the MAX7219 DIP24 (from MAXIM). This is a SERIALLY INTERFACED, 8-DIGIT LED DISPLAY DRIVER and you can get a free sample from WWW.MAXIM-IC.COM or PHONE 1-800-998-8800. Do you have any information about CALL ID system that you mention ? I'm interested in this class of information, and other user on the list too. (Have you Technical Specifications about CALL-ID? Bye, Hugo Sorry, in the previous message i write MAX7129 while the correct part number is MAX7219. Thanks to Matt. ------------------------------- Hugo J. Muller E-mail: hjmuller@satlink.com Parana - Entre Rios - Argentina -------------------------------