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Xfinity Voice (formerly Comcast Digital Voice) is a Voice Over IP cable telephony service that was launched in 2005 in some markets, [75] and to all of Comcast's markets in 2006. Comcast's older service, Comcast Digital Phone, continued to offer service for a brief period, until Comcast shut it down around in late 2007. [ 76 ]
At the local community, an optical node translates the signal from a light beam to radio frequency (RF), and sends it over coaxial cable lines for distribution to subscriber residences. [2] The fiber optic trunk lines provide enough bandwidth to allow additional bandwidth-intensive services such as cable internet access through DOCSIS . [ 3 ]
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Brian L. Roberts. Comcast is described as a family business. [19] Brian L. Roberts, its chairman and CEO, is the son of founder Ralph J. Roberts (1920–2015). Roberts owns or controls about 1% of all Comcast shares but all of the Class B supervoting shares, giving him an "undilutable 33% voting power over the company". [20]
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Comcast Center, also known as the Comcast Tower, is a skyscraper at 1701 John F. Kennedy Boulevard in Center City Philadelphia. The 58-story, 297-meter (974 ft) tower is the second-tallest building in Philadelphia and in the U.S. Commonwealth of Pennsylvania , and the 31st-tallest building in the United States .
An electric arc furnace used for steelmaking consists of a refractory-lined vessel, usually water-cooled in larger sizes, covered with a retractable roof, and through which one or more graphite electrodes enter the furnace. [6] The furnace is primarily split into three sections: the shell, which consists of the sidewalls and lower steel "bowl";
First with flashing yellow, then steady yellow, and finally steady red over a period of several seconds. Pedestrian signal heads at either end of the crosswalk display the upraised hand (don't walk) signal until the HAWK beacon displays the steady red signal, at which time, the pedestrian heads change to the walking-person (walk) aspect.