I have had much better luck with Napco panels using the Cardinal 2400 modems. They work great with all my Napco panels, and I do not recall having to set anything. Just tell the software (DOS and Windows both) what modem I am using. I have a couple of those Cardinals. I only use the Hayes
1200 10 dip for FBII panels now, and I never did get any 8 dip models to work with them.