@emmaross1 . If the telephone cable is connected to the WALL SOCKET on the NBN box, the outlet might be faulty. Is there another phone outlet you can try?
Otherwise, a moderator will need to arrange a service call.
Welcome to the Community!
We were able to locate your account and it shows that the service installation/activation is still in progress.
We'll raise this with our NBN Provisioning team and updates will be provided by your case manager.