VALLEJO (CBS SF) — A cool-headed Vallejo police dispatcher is being credited with saving the day when a frantic woman called 911 to report her 27-year-old granddaughter was about to give birth.

The Vallejo Police Department said in a post on its Facebook page that dispatcher Susan Hart took a frantic call at 8:03 p.m. Thursday from a Vallejo resident whose daughter was in labor and the caller “was in a complete panic and unsure of what to do.”

Read the full story at CBSSanFrancisco.com.