Good morning all, I have a USRobotics Total Control NETServer/16 I-modem which I hope to use for dial-in access for remote users. I have had 4 ISDN lines installed. These are connected to a network terminator and then the NETServer. The switch protocol used here in Northern Cyprus is Euro-ISDN (I have confirmed this many times with the not-so-helpful telcom staff) The problem I have now is as so: 1. When I set the switch protocol to Euro-ISDN (*w=2 or ETSI-NET3) the Physical Interface goes Active but the Data Link Layer is inactive. After about a minute both the Physical Interface and Data Link Layer goes inactive. 2. While playing around with the settings, I set the switch protocol to AT&T (*w=0). When I do this both the Physical Interface and Data Link Layer go Active. However I cannot dial out (atdt command gives NO RESPONSE or NO CARRIER) and no one can dial in. A technician told me that Euro-ISDN is indeed the protocol to be used and that the telecom have obviously not setup the line correctly (something about the Data Link being activated). The telecom people however keep telling me that they have done everything on their end and that there is a problem with the settings on my modem or that my modems are not working. All 16 of them! Every person I talk to seems to say something different. I was wondering if anyone could shed any light on to this problem. Has anyone had a similar experience before? Many thanks once again. David =============================== Dr. David T. Thomas Marmara University Hospital Altunizade, Istanbul, TR. ===============================