So i have building A and B. A houses all of my cabinets, i have another cabinet in building B. Everything was working fine for months, then we had an MPLS circuit go down last night... Now that the circuit is back up i have one way voice from B to A, DTMF works both ways guessing (elan?) I did notice that both of my CPU cards now have flashing status lights.. one green (primary) one orange (secondary) they used to be solid... Not sure what the status lights mean, never seen them other than solid.