Call each morning betw 5 am and 7 am, right at the top of the hour.  voices in the background when I have answered the calls, but when I say "hello?" the caller hangs up.  My wife answers the call today and a man who sounded like he had a Hindi accent asked for her by her first name, but then hung up when my wife sounded confused.
When trying to call this number I get the following message:
"I'm sorry we cannot connect your call at this time. 200-2"