I have a question, I have a Nortel 6x16 pbx, and everything works fine. I have had several of the Nortel telephones hooked up to it. The only one that I can not get to work is the M7324. When I go plug it in, the display does the blink dance thing and then nothing. At the same time all the other extensions work. I have tried moving it into another station and it will still does the same thing. Any ideas? Thank you.