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What if my carrier supports voLTE but still cannot turn on the voLTE and it keeps telling me the cellular network has not been certified by the carrier

how Can I get my cellular network certified by the carrier to turn “ON” my voLTE?

iPhone 7, iOS 13

Posted on May 23, 2020 12:47 PM

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Posted on May 23, 2020 1:45 PM

Make phone calls with Voice over LTE (VoLTE) - Apple Support


I'm assuming that you called you carrier, if not call them and also ask if a new Sim Card will help.

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What if my carrier supports voLTE but still cannot turn on the voLTE and it keeps telling me the cellular network has not been certified by the carrier

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