asterisk users - Apr 2004 - Detecting Distinctive ring on a POTS line

Hello,

I have a POTS with distinctive ring on it from the phone company. It looks
like there is a way with asterisk to create distinctive rings, something
like dial(ZAP/1rx) but is there a way with asterisk (using an X100P PCI
card) to detect a distinctive ring from a POTS line?

Thanks for your help,
                   - Andre