Telstra announced plans earlier this year to deploy LTE Advanced technologies that combine its spectrum in the 900MHz and 1800MHz bands for extra capacity.
LTE Broadcast, another technology Telstra is exploring, is "not a big focus for [Optus] right now," Smith said. LTE-B allows a telco to broadcast one video stream to multiple people at the same time, which is more efficient than the current method in which video is streamed separately to each customer.
Voice over LTE using the 700MHz band is "in the roadmap," said Smith. Only "a couple" other carriers in the world have done it so far, he said. "While there are some good technical attributes to it, you really have to make sure you get voice right."
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