I have an IP Office that has 2 PRI's going into it along with 4 CO lines. I get many complaints that everytime a user attempts to dial a toll free # they get a busy signal only to have to retry this number for it to work. I don't feel this is a carrier issue. Where on the IP Office can I check or change the routing of the toll free #'s. They should be going out over the CO lines but where would I check that?