TUCSON, Ariz. (CNN) - A two-year-old is being hailed as a hero for saving his mother's life.

But it wasn't a call to 911 that helped save the day. The toddler tapped into his mother's iPhone and used her Facetime app to contact help.

Panic started to set in when Laura Toone says she desperately needed paramedics, but couldn't dial 911.

"I begged my daughters to call 911," she said, "and they're four and quite afraid to even touch the phone because it was so covered in my blood from trying to call 911."

Toone says a foster dog she cared for attacked one of her own dogs. When she tried to break it up, the dog bit part of her finger almost clean off.

She continued to lose blood, and right when she thought she was going to pass out, her son came from the kitchen with a dish towel and called her friend on Facetime.

Bentley, 2, didn't know how to call 911, but he knew how to Facetime.

In fact, he Facetimes Laura's friend Connie Guerrero so often, she usually just ignores it.

"Something inside of me just told me that I needed to answer his Facetime," she said. "All I could see was his little forehead, and I said 'hi Bentley' and it was quiet for a little bit, and then I hear Laura screaming."

From there, help was called. Bentley even unlocked the door for firefighters.

And now Laura is thankful for her little hero.

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