Journalist and presenter Antoinette Lattouf says mediation with her former employer, the ABC, has failed and her unfair dismissal case will now head towards a full trial in the federal court.

Earlier this month the Fair Work Commission ruled Ms Lattouf had been sacked by the ABC when she was taken off air part way through a radio presenting stint on ABC Radio Sydney last December.

The 40-year-old, who was taken off air after sharing a social media post on the war in Gaza, argues she was sacked for expressing political opinion and her race was a factor in her dismissal.

A small group of supporters gathered outside court today as Ms Lattouf and her lawyers met with the ABC's legal team for just over an hour of mediation.

Speaking outside the court, Ms Lattouf said she was disappointed the issue had not been resolved but she was determined to fight on.

She said the fact that mediation had failed was "incredibly disheartening" and the whole process had been "incredibly hard and incredibly unfair" on her.

"I will make it very clear, I will not stop fighting because press freedom, human rights, and a robust and independent ABC are just far too important," she said.

An ABC spokesperson declined to comment.