We've added a new feature to the Control Pages for customers with BT Lines.
The feature is detailed on our wiki here: http://wiki.aa.org.uk/Automatic_Line_Testing
In short, the feature allows ADSL, FTTC and FTTP customers to run automatic line tests. Tests can be run when the line logs in or drops out, and can be run at hourly or daily intervals.
The feature is aimed at helping to diagnose faults, and has been available to staff and we're now making it available to customers.