I have 4 lines, one inbound catch all route, and one outbound any did outbound route. Out of the four lines only two calls may come in at a time. I wish to have all four lines if available to answer. The third call into the system gets a busy message. The outbound route works just fine. My TelCo hunts all four lines coming in, in line order as I have setup. Going back to the old system it still works that way. What should I be looking at to correct this?