Ms Commins spoke with her mother in Dublin by telephone.
It was the first time her family had heard from her in weeks.
The 32-year-old was abducted in Sudan ten weeks ago along with her Ugandan colleague Hilda Kawuki.
The two were kidnapped on 3 July when a gang armed with semi-automatic weapons burst into a compound of the Irish aid agency in the northern Darfur town of Kutum.
Minister for Foreign Affairs Micheál Martin travelled to Sudan last weekend to discuss the release of Ms Commins.
Minister Martin has also been in contact with the Commins family
The Department of Foreign Affairs said efforts to secure the immediate release of the two aid workers are ongoing.
