Anthony Albanese has hailed a "warm and constructive" call with Donald Trump, but when the prime minister will come face-to-face with the US president remains uncertain.

Mr Albanese revealed the leaders held their fourth and latest phone call as Australia faces US pressure to loosen trade barriers and lift defence spending.

"We discussed our trade and economic relationship as well as areas for growth including critical minerals," Mr Albanese said in a post on social media just before midnight on Thursday.

"We also discussed shared US-Australia security interests."

An Australian government readout of the meeting said Mr Albanese discussed economic co-operation, as well as trade and critical minerals important to both countries.

"Leaders also discussed the strength of our relationship a

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