About two months ago we noticed that one of our dial-up systems was dropping out after about 5 to 10 minutes. we tested the system on a POTS line not running through our switch and it worked fine. About 6 months ago we changed our two DID PRI's to different loops. The clock controller is physically connected to the old loops and when i do ssck 1 it shows PREF and SREF as the old loops. My question is do i need to move the connections and PREF/SREF to the new loops?