71% of the outages were within the carrier's control

[Sean Donelan <sean () donelan com>]

Several people asked me for a citation for my report that 71% of
the outages were within the carrier's control.

See ftp://ftp.atis.org/pub/nrsc/2mins2q2000.pdf item #74.

You can also see the corresponding debate over what "control"
meant.