Supposedly an NBN technician, the recorded voice caller said my land line would be disconnected within 24 hours if I didn't dial one to speak with tech, but as I have had this call coming through at least 4 times this week, I now am sure as I at first suspected, that it is a bogus call. I did not dial 1. Any unknown number that asks you to press any digit, to speak with anybody at all, is immediately suspicious in my opinion. Doubting Thomas Me.