Recorded message about how bad it will be if I don't call him back... Threats for several minutes before it said 'good luck if you choose not to return our call'.
My mother has been having problems for years after she paid a scammer in India for anti virus shareware that cleaned up the trojan horse I guess. This morning an unregistered long distance call claimed a criminal investigation was after her not paying taxes, then this number with an electronic male voice of "Officer John" Blow said the same stuff, so it is a recording for everyone. Mother just hangs up instead of paying them money anymore. They miss her generosity.