18-year old Sam Ray was working on his 1998 Dodge Dakota when the jack holding up the 2 ½ ton truck gave way, pinning him underneath.

Ray called for help but no one could hear him. He was lucky to have Siri with him.

He heard Siri's voice from the iPhone in his back pocket, which had been activated under pressure, so Ray asked her to call 911.

Dispatchers first thought the call from Walterhill, Tennessee was a prank. "We get a lot of pocket dials," dispatcher Christina Lee told the Tennessean, "and I thought it was a pocket dial at first but then I heard the screams for help."

Lee sent firefighters to the scene just in time. The 18-year-old said he was starting to feel like he wasn't going to make it.

While Lee kept reassuring Ray for seven minutes, other sheriff's dispatchers notified LifeFlight, which medivacked him by helicopter to Vanderbilt University Medical Center in Nashville.

Ray suffered several broken ribs, a bruised kidney and a concussion but thanks to Siri, he is lucky to be alive - no buts about it.

The grateful young man met and thanked the Rutherford County team, LifeFlight and medical staff during a ceremony at the LifeFlight launch pad Friday in Nashville.

(WATCH the video below) - Photo: Rutherford County Sherriff's Dept. via FB

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