Troubleshooting Fibre Phone for Cannot Call Certain Numbers

This article will guide you through the troubleshooting for being unable to call certain types of phone numbers on an NBN™ Fibre Phone used for NBN™ Fibre to the Premises (FTTP) broadband services.

Select one of the links below to jump to a query:

  • You can successfully make and receive calls, but you cannot make calls to specific types of numbers (e.g. certain international numbers).
Potential cause Try this:
Call barring settings preventing call Log in to Toolbox to check your Call Barring settings and adjust them if necessary.
Billing or service suspension Log in to Toolbox to check if there are any alerts for service suspensions for your account.
The number is a premium number It is not possible to call premium numbers (e.g. those beginning with 19/1900/1902) using any of our VoIP services, including Fibre Phone. You must use an alternate phone service such as a mobile.


  1. iiNet Fibre Phone services have certain high risk international numbers blocked by default.
  2. If you need to make calls to a high risk country, please call us on 13 22 58 to request that high risk numbers be unblocked for your Fibre Phone service.
  3. A list of high risk countries is available at High Risk Call Blocking explained.