Liam do you have the graphic (an_1241.gif) that goes with this application note? I also am interested and the connection diagram would help greatly. Thanks, Richard P Hi Magnus, Attached is an old file I had lying around that I *think* I got from www.avrfreaks.com that shows how to interface to a nokia phone using an AVR (in BASCOM-AVR basic) Hope it helps. Check out the address above as it will have the complete version of this file. Regards Liam -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu