"We hope it will improve patient care across the region," Mr Fake said.
Callers who do not have an immediate or life-threatening emergency are transferred to Healthline for assessment by a registered nurse.
Non-urgent 111 calls have included minor injuries such as cut fingers, sprained ankles and illnesses, such as coughs and colds, he said.
"The new system for non-urgent calls means we are able to get ambulances to the people who really need them as quickly as possible."
Healthline have faced an increase in call volumes as a result of the trial, Mr Fake said.
The Ministry of Health will evaluate the trial, which is expected to be completed by April.