Hi, I have a proprietary DECT PBX connected to a HFC-S card. As soon as I plug the PBX into the HFC card, some of the DECT phones lose their sync: They switch between "no connection" and "connected" every few seconds. When I unplug ISDN, the phones are working again. So the PBX seems to generate some DECT timing signal from the ISDN bus. Is there a way to tweak the parameters of the HFC card so the DECT timing is correct? Could this problem be avoided by using a professional 4-port HFC card? Andreas