An outage is preventing customers from connecting with some business call centre landlines, including the Interislander and Metlink on Friday morning.
Vodafone has confirmed a technical issue is impacting some business customers and teams are working to remedy the fault.
The issue is causing calls to fail to connect.
Vodafone said services were being restored and calls should be back and running as usual very soon.
The Dunedin City Council was also reporting its call centre might not be connecting and was advising people to visit the website, use email or social media.