Satellite technology has been launched as a backup to bolster mobile coverage.
SpaceX successfully launched a rocket containing Starlink satellites to go alongside One New Zealand's mobile network.
One New Zealand Chief Executive Jason Paris told Tim Dower that it's a layer of resilience in the wake of Cyclone Gabrielle.
He says power to cell towers was a problem, and it was a safety issue that some couldn't get in touch with emergency services or tell loved ones they're safe.
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