Hi,
Since a recent NBN 'planned maintenance' in my area, my home phone service no longer calls out any numbers. Since I have had NBN, the phone line has always made a regular ticking/tapping sound over the dial tone, but once it connected on a call, the noise was gone so I didn't worry.
Now when I try to make any calls to any numbers it either does nothing (silence) or it says that I tried to call OCA0101 - regardless of the number I actually dial.
I suspect that my phone line is still physically connected to a wire (that would formerly have terminated in the exchange that is literally next to my house) in the NBN box - as after the NBN equipment was installed in the box in front of my house, my ADSL based home phone line stopped working and then TPG had the phone line reconnected again, so that it would work again. I strongly suspect that once I transferred to NBN, no one ever disconnected it and since I am literally next to the local telephone exchange, the line length was relatively short and hence didn't cause any major problems until now.
