from
http://www2.bt.com/static/i/microsite/help_and_tips/faults/faq/faults_faq3.htmlFor fault reporting:
Quote:Residential customers call:
For free on a BT line 151
For free on a non-BT line 0800 800 151
From a mobile 800 800 151 (there may be a charge)
Business customers call:
For free on a BT line 154
For free on a non-BT line 0800 800 154
From a mobile 800 800 154 (there may be a charge)
Obviously, use a pass-though number rather then the 0800 from a mobile, or if your VOIP service doesn't do 0800.
(I think most of the other BT three digit services also have 0800800nnn equvalents. Of course, you can also do your fault reporting online, if that is still working.)