We have cucm version 8 what is the reason for the option route partition under line. The reason I ask this if I have no css for line and device but I have assing a partition under router partition under line nothing happens cannot call no where until i assing a css under line or device. So what the point for route partition. Even if I assign the same partition under route partition to another dn partition I cannot dial that dn in the same partition. I feel the route partition is useless or is it?