1. Start and Stop ISDN connections and display status. This is a small X based program that allows for easy activation and deactivation of the demand-dialing feature of the Linux-ISDN subsystem. It can also be used to initiate connections without using the demand-dialing feature. It displays a symbolized traffic light. When the light is red, no demand-dialing is possible; when it is yellow, demand-dialing has been enabled but there is currently no connection using any of the ISDN network devices; when it is green, there is at least one active connection using an ISDN network device. You can interactively switch between red and yellow/green by clicking with the left mouse button into the window; the right mouse button pops up a menu to select between different actions --- this can be used if you want to connect to different providers. From Debian 3.0r0 APT