"There are only two countries ... that are not using Huawei - one is the US and one is Australia. It's beyond comprehension,"he said. Huawei is the world's largest maker of telecommunications network equipment and provides equipment for some 4G networks in Australia.
"This hasn't got anything to do with 5G. The US is not an expert on 5G,they're in a trade war with China,"he said.
"Nearly every other country in the world has found a way to incorporate Huawei."
One of the key areas of contention is the split between the"core"- or brain - of the network and"non-core"technology. Some telecommunications companies in Australia had long hoped to use Huawei technology for antennas and non-core equipment.
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The government says it does not believe there can be enough of a split between the core and non-core to ensure national security on a mobile system that is expected to connect everything from self-driving cars to energy grids. Some industry experts and academics dispute the claim there is less of a division between non-core and core under 5G than earlier mobile technologies.
Mike Burgess,the director-general of the Australian Signals Directorate,said on Monday the stakes in 5G"could not be higher"and warned it was no longer sufficient to confine"high-risk vendors"to non-core parts of the network.