https://www.t-mobile.com/community/discussions/coverage-signal/gu%C3%ADa%C2%BFc%C3%B3mo-hablar-con-un-representante-de-viva/171194
https://www.t-mobile.com/community/discussions/coverage-signal/gu%C3%ADa%C2%BFc%C3%B3mo-hablar-con-un-representante-de-viva/171194