Caller: Recorded message claiming to be NBN

I received one call on the landline today from this number and was answered with a recorded message by an English sounding (not Indian) woman "Hello, this is the National Broadband Network calling to tell you that your phone service will be disconnected today unless you press '1' on your phone dial now". Did not press '1', hung up and blocked the number. Don't press any numbers on your phone when they call, hang up.