Following the BT outage at 02:30:59, the main LNS stopped responding at 02:33:34. This is likely to be a result of the problems with the link to BT. This should obviously not happen.
The system automatically switched lines to the secondary LNS as designed, which meant some customers took everal minutes to reconnect.
We are investigating the cause and may be sending an engineer.
Both LNSs up and running now.