Tim's Low-Cost Web Surfing Topping Profits

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Pedestrians carry mobile phones in the Ipanema neighborhood of Rio de... News PhotoBrazil,Carrying,Communication,Finance,Horizontal,Ipanema Beach,Latin America,Mobile Phone,Pedestrian,Portable Information Device,Residential District,Rio de Janeiro,Telephone,The Americas,USA,Wireless TechnologyPhotographer Collection: Bloomberg 2013 BloombergPedestrians carry mobile phones in the Ipanema neighborhood of Rio de Janeiro, Brazil, on Tuesday, Aug. 6, 2013. Telefonica Brasil SAs Vivo, now controlling 28.7 percent of Brazil's mmobile phone market is locked in a battle with Tim Participacoes SA, whose share of the market has risen to 27.2 percent by undercutting rivals on voice and data plans. Photographer: Lianne Milton/Bloomberg via Getty Images