I inherited a customer last week via a cut over for a T-1. System was working fine they said before I did the cut. Afterwards the paging did not work. They had a button on each phone labeled speaker. Now when you press the button you get a dial done (can't make a out bound call) instead of being able to use the paging. I have reviewed the system and tried moving a couple of things around but it still doesn’t page. What might I have done wrong???