In a seven-minute tape released Monday by the Los Angeles County Fire Department, Lee requested an ambulance, then stayed on the phone while the dispatcher attempted to determine whether the boy was breathing.
In the call, Lee said, "There's a big pool party here and no one was paying attention for a minute." According to the tape, the operator then asked if the boy's chest or stomach was rising and Lee said, "I don't know - everyone is pressing in on him."
The operator then warned Lee to stop people from doing that and Lee, sounding agitated, said, "I know. There's a bunch of (expletive) people all doing their thing so I don't what the (expletive) to do. OK."
"He's not breathing. He's throwing up but he's not breathing," Lee said at one point.
"He's not responding," he said a moment later.
Then: "He's just, he's just laying there."
The boy, Daniel Karven Veres, drowned Saturday at Lee's Malibu home. He was pronounced dead at a local hospital, police said.
The child, who had apparently been swimming with several other children, was found floating face down in the shallow end of the pool, police said.
The boy's father, James Veres, a television producer, told a local radio station Sunday that more people should have been hired to supervise the children and called his son's death "inexcusable."
"It was a birthday party like a million other birthday parties and obviously there wasn't enough help at the pool," Veres, who didn't attend the party, said Sunday. "It's inexcusable and just amazing to me."
It was not clear whether the birthday party was held for Lee's eldest son, Brandon Thomas, who turned five June 5, or Lee's other son, Dylan Jagger, who will turn four December 29. Their mother is the former 'Baywatch' star Pamela Anderson.
Lee is the former drummer and founding member of the band Motley Crue.
The boy's death was ruled an accidental drowning.
© MMI Viacom Internet Services Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press and Reuters Limited and contributed to this report