How Internet protocol-enabled services are changing the face of communications : a look at video and data services : hearing before the Subcommittee on Telecommunications and the Internet of the Committee on Energy and Commerce, House of Representatives, One Hundred Ninth Congress, first session, April 20, 2005.
Imprint
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2005.
