We Recently made ARS changes to route outbound local traffic via ATT trunks as opposed to BellSouth, our local service provider's trunks. The problem is, i can dial a cell phone from the company station and it works fine. however if i set my extension to cover to the cell, it doesn't work. I can hear the cell phone ringing, i answer, but do not get any sound. The station goes on ringing. This happens on Verizon cell phones. Coverage works fine on Sprint phones and home phones. I am at a loss as to what could be the problem. I have tried to vary the number of rings, but that doesn't help. Everything works perfect on Bellsouth trunks.