Configure==Boards==Ports==ISDN Ports
To view, edit, reset, and refresh the configuration of ISDN PRI ports on an active PortMaster 4, click Boards==Ports==ISDN Ports.
Configure ISDN PRI connections first in the Configure== Boards==Lines panel. ISDN port assignments are then made automatically by the PortMaster 4. These default configurations require no further settings, but you can edit them in this panel.