I am not 100% certain, but I do believe this operation called two times in a row. The first call displayed all zeros for the number and not two seconds after the answering system took the call, the phone rang again displaying this number.
Based on what I have read, it sounds like another one of these bogus solar panel calls.
Did you happen to receive two calls in a row displaying different numbers? I ask because my mother received two calls seconds apart. The first was call displayed all zeros and the not two seconds later her phone received a call showing this number.
Third different call that came today. Sometimes we don't get one for a week or so, sometimes we get recurring ones (as the second one was). The first one (Currie Motors in Illinois) did leave a message, the last two didn't even get to the end of the voicemail message.