A 1-month-old baby boy was saved after he stopped breathing yesterday when a D.C. ambulance dispatcher instructed the child's grandparents in CPR techniques over the phone, according to a spokesman for the Fire Department.

The baby, Charles Carey of 403 44th St. NE, was in good condition at Children's Hospital, hospital officials said. The boy's father,

Angless Tyree, 18, said the baby was smiling and happy but would be held at the hospital for two days of observation.

Nikki Arnold, the dispatcher credited with helping to save the baby's life, said she took an emergency call about 6:10 a.m. from the baby's mother, who said the child was having trouble breathing. Tyree said the baby's mother is Nicole Carey, 16.

"She was hysterical," Arnold said. "It was hard to understand her, but I did manage to get the address and that the baby was having trouble breathing. Then she dropped the phone and I heard her say, 'The baby has stopped breathing.' "

The baby's grandfather, whom Tyree identified as Charles Carey, then picked up the phone, and Arnold gave him instructions on how to revive the infant.

"He in turn told the baby's grandmother what to do," Arnold said. "He was very calm." Tyree said the grandmother is Carrie Carey.

Arnold said the grandfather told her about a minute later that he could see the baby moving.

"Then he said, 'Now his eyes are open,' " she said. "Then he told me, 'He is crying.' "

When the grandfather said the baby still looked blue, Arnold told him to tell the grandmother to breathe into the baby's mouth again.

Arnold said that a medic unit and an engine company arrived at that point.

Hospital officials said last night that they did not know why the child had stopped breathing.

Arnold, 26, who began work as a dispatcher in June, said she was trained as an emergency medical technician by the Prince George's County Fire Department, where she has been a volunteer for eight years with the ambulance division.