Last Monday, as his mother Rebecca "lay asleep on the floor and bleeding", Noah Opris, 3, called 000 and explained where he lived and what had happened.

Rebecca suffered an epileptic fit while her older son Kyle, 8, and her husband Christian were out, leaving Noah alone with his nine-month-old brother Zac.

Emergency Services Telecommunications Authority call-taker Christine Wall said she was "amazed at the information I got from Noah".

"The most important thing is to get an address, and although it took several minutes to get the exact details, Noah immediately said he was from Narre Warren and his mum was asleep on the floor and bleeding.

"I kept talking to him, asking questions, and after some minutes he said his exact address - he was so calm, but I knew it was a serious and genuine call."

Ms Wall immediately called an ambulance and police, and Rebecca was transported to Dandenong Hospital for treatment.

Paramedic Kristiana Honey was on the scene.

"Noah's behaviour was impressive," she said.

"When we arrived he was able to tell us his mum had fallen and had been shaking for quite a long time - we administered oxygen immediately.

"With an epileptic fit the patient is unconscious, but usually still breathing.

"However, depending on how long the actual fitting lasts, they could be in real trouble and suffer from hypoxia - a lack of oxygen to the brain.

"Noah's actions may well have saved his mum's life, and she should be very proud of him."

Constable Travis Cusack and Constable Heather Meredith, of Narre Warren police, also attended the scene.

Cuddling up to Constable Cusack last Wednesday for a media conference, Noah was at ease and clear about what he had done.

"Who did you call?" Constable Cusack asked Noah.

"I called you," Noah said.

"What button on the phone did you push?" Noah's mum asked.

Holding a phone up Noah pointed to the 0 button, and then held up three fingers to demonstrate how many times he'd pushed it.

"You can never start teaching children too early, and the two main facts are where do you live and what's happened. I made sure Noah knew what to do if something happened to me," his mother said.

"But I am amazed he actually did it. I am so proud of him."

Communications spokesman for ESTA Wayne Debernardi said Noah's actions highlighted how vital it was for parents to educate their children on how to operate 000.

Noah will receive an ESTA Junior Triple Zero Hero award later this year.