The Lismore App has discovered that 000 emergency calls to NSW Ambulance have been dropping out since 11:30 yesterday morning, and the issue is ongoing.

Anonymous sources raised concerns, and further investigation has led us to believe that multiple 000 calls are dropping out from Coffs Harbour to the Tweed, including Lismore.

According to the sources, callers ringing 000 are connecting to the operator, but when the call is routed to NSW Ambulance, it drops out. This is not a one-off occurrence; a caller can experience multiple drop-outs before a successful connection is made.

The Lismore App understands that an investigation and a thorough review are underway. We can tell you that no network issues have been found, and there have been no reports of negative outcomes.

The number of call drop-outs is believed to be low, so this is not a widespread issue.

The Lismore App contacted NSW Ambulance for comment, a spokesperson said, "NSW Ambulance is aware of a small number of reported cases involving unsuccessful attempts to connect to Triple Zero (000) in the Coffs Harbour, Lismore and Tweed regions on Monday 29 September.

"NSW Ambulance has referred the reported calls to the Emergency Triple Zero telecommunications provider for review.

"eHealth NSW, who manage the telecommunications for NSW Health, confirmed the Triple Zero (000) environment between Telstra and NSW Ambulance was operating as required.

"We are undertaking a review of the identified Triple Zero (000) calls received by NSW Ambulance.

"NSW Ambulance has not received further reports of concern from callers in the area since Monday morning and has not identified any adverse patient outcomes related to these calls.

"NSW Ambulance urges anyone experiencing a medical emergency to call Triple Zero (000)."