Radiio/Electronics Magazine had a PIC based project that described the ring patterns a year or two ago. If I think about it when I get home I'll look it up. Martin R. Green elimar@bigfoot.com ---------- From: Andrew Russell Morris[SMTP:amorris@MINDSPRING.COM] Sent: Friday, September 05, 1997 11:55 PM To: PICLIST@mitvma.mit.edu Subject: Distinctive ring cadence Does anybody know or know where I can get information on the 4 ring patterns for the Distinctive Ringing service from the telephone company. I would like to embed a distinctive ring decoder into a PIC project. Thanks in advance for any help. Andy Morris