The call came at about 10:30 p.m. Thursday from a residence on the 1700 block of West Lambert Road.
As La Habra police got to the scene, the 911 call was disconnected.
The first officer on the scene said he encountered a suspect, and there was a shooting.
The 47-year-old male suspect was taken to a hospital for treatment. The officer was not hurt.
The Orange County District Attorney's office, as it does in all officer-involved shootings, is investigating the incident.