I have 13 channels provisioned in a BCM 400 R4.0. Trunk type is a T1. The carrier is providing service via a BIS T1 through a VINA Box. The carrier is directing the DID range to the last 4 channels of the T1. Outgoing calls work fine and the Main number rings into the operator over the first channel just fine. DID calls never seem to hit the BCM when viewing lines through the BCM monitor.