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Continue to ChatTIM avanza en 4G con refarming de 1.800 MHz en Rio de Janeiro y San Pablo https://www.telesemana.com/blog/2017/07/13/tim-avanza-en-4g-con-refarming-de-1-800-mhz-en-rio-de-janeiro-y-san-pablo/
TIM avanza en 4G con refarming de 1.800 MHz en Rio de Janeiro y San Pablo https://www.telesemana.com/blog/2017/07/13/tim-avanza-en-4g-con-refarming-de-1-800-mhz-en-rio-de-janeiro-y-san-pablo/