An anonymous reader writes "A recently produced report by the Brazilian Telecommunications Regulatory Agency (ANATEL) confirms what many clients — myself included — have long suspected, TIM disconnects its customer calls on purpose. TIM offers voice plans charged either by minute or by call, the latter appeals to a larger audience because one call, regardless of its duration, costs only 25 cents even if it's long distance. However the report discovered that these calls have a drop rate 300% higher than those charged by minute which strongly suggests that they are disconnected on purpose, to maximize profits. More details (in Portuguese) here: http://g1.globo.com/parana/noticia/2012/08/tim-derruba-os-sinais-de-clientes-de-forma-proposital-aponta-relatorio.html"
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