what is the diffrence in the cable that you use between Modem and PC & Modem to pic, the modem may require the extra signals that the PC Suplies vai the cable. post a ciruit of pic to modem also check voltage levels at the modem. RS Cables can be a pain if all pins are used hope this helps all the best arthur ----- Original Message ----- From: Donald D'Alessandro To: Sent: Monday, March 13, 2000 10:46 PM Subject: PIC17C44 & Modem | Thanks for all your help. But I still cannot get my modem to communicate | with my PIC. | | I have tried using LF, '+++', pauses, uppercase 'AT', and even verified | with the PIC connected with a PC that the commands are indeed correct, and | they are. | | My modem still doesn't like my PIC. And I verified that the modem is | working through a generic PC terminal program. | | Any more suggestions would be very much appreciated. | | Thanks, | Donald | | ~~~~~~~~ Donald D'Alessandro ~~~~~~~~~~~~~~~~~~~~~~~~~~~ | ~~~~~~~~ Fourth Year Electrical Engineering ~~~~~~~~~~~~ | ~~~~~~~~ Ryerson Polytechnic University ~~~~~~~~~~~~~~~~ | ~~~~~~~~ Toronto, Ontario ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | ~~~~~~~~ Email: ddaless@ee.ryerson.ca ~~~~~~~~~~~~~~~~~~ |