i have a norstar 4.0 system and i recently enabled PRI to work with my new carrier. the enable worked fine but i was able to configure everthing except the D-packet. i know that there should be in the hardware section a D-packet heading with a Y or N but it does not show up anywhere inf the system. i can not get my pri singnal untill i enable the D-chanel on 24. does any one know why i can not.