Filed an amici curiae brief on behalf of CenturyLink, Qwest Communications International, and Windstream in support of Michigan Bell Telephone Company arguing that requiring incumbents, like AT&T, to provide non-bottleneck network elements at cost-based rates undermines the objectives of the 1996 Telecommunications Act, and that the Act does not impose an obligation on incumbents lease their existing entrance facilities for interconnection to competitive local exchange carriers at cost-based rates. 131 S.Ct. 2254 (2011).