ARSH

Lines are working.

Yea that is probably what happened. The ones that are fine are newer additions.

Yes, they all have the same exchange.  However, that's because they were all part of our original contract with Nextel.  That may be coincidence, but I'm not sure.  

 I have 8 #s on the same line. If the word for the 3 digits in the middle is the exchange than all phones on one exchange are not working. Unfortunately that exchange has my 2 most important phones. Do you know what exactly the issue is and how soon it will be resolved?

I just registered on this forums because I am having the exact same issue. Interestingly it is with the 2 most important phones on our business line.

MReiser4670 for your phone lines that aren't working do they all have the same middle 3 digits. As in AreaCode-HERE###HERE-####?