Has anyone used BT's DSS services? http://www.bt.com/isdn/isdn2e/extra/dss.htm I have an ISDN 2e comming into my Asterisk and would like to deflect calls when I am busy (or I can't get my HFC-PCI card to run correctly LOL) to my PSTN->IAX VOIP number if the Asterisk doesn't answer. Listening out... Simon