I'm having an issue with my Nortel CS1000 system this morning after a power outage over the weekend, where long distance calls are going straight to a fast busy without ringing. We have auth codes set up, if that matters. We don't really have anyone on-site who is knowledgeable about the Nortel system (myself included), and our provider (Windstream) won't offer support on it any longer. I know I've had this issue in the past and a tech had come out and was in-and-out pretty quickly, so I don't think it's a difficult fix, I just have no idea where I need to look for the cause of this or what I might need to restart/check. Any help would be appreciated.