Need some help with this one? Can a TN767E card be used for ISDN-PRI circuits on newer versions of Communication Manager? I have this working on older Definity's, but I just tried creating one for my CM3.1 and when I try to configure the DS1, it won't let me choose ISDN-PRI as a Signaling Mode, only ISDN-EXT. But if I choose ISDN-EXT, it won't let me create a signaling group, saying the type must be ISDN-PRI to add a signaling group. Any ideas? Obviously I'd like to avoid buying one of the newer TN464's if I can.