My first thought is that the LEC is not sending the transition reset bit. The only way to see that is if the LEC comes back out, connects the T-Berd in the system in bridge mode, then have the CO yellow alarm the circuit and then have the CO restore the circuit. The tech should see the transition reset bit and your system should respond with an ack bit. Then do the same from the site and see, when your system sends the transition bit, the CO acks the sent bit with an ack bit.
Some systems use the same bit for the transition bit and the ack bit, so you may not see two different bits, but you should see the CO and your system sending bits to each other. If only ONE is missing, the circuit will not come up automatically.
Rcaman
