I have a cisco router 3640 ISDN BRI acting as a modem. I have configured in notes R5 an additional port to use instead of using an external modem on port 1, but I do not know which modem is compatable in the list, the unlisted modem does not work if I select this. If I dial out using dialup networking the connection works on the new port ie to dial an external telephone number. I have checked the cisco website but unfortuantely cannot find anything relating to modem compatability with notes.