Telco giant Spark is reporting an $837 million dollar half-year profit. 

This bumper profit is largely due to a $584m gain from selling a majority stake in their cellphone towers to a Canadian investment fund.

Setting that sale aside, Spark's net profits actually fell by 7.8 percent.

Spark CEO Jolie Hodson says that Spark had a strong performance in mobile, but cost of living pressures affected their broadband sales.

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