Called work phone once and I did not answer as I was on another phone. Did NOT leave a voicemail.
Called back again <10 minutes later. For me this is a call from within my geographic region, so since it was a work line I answered. Long pause, then background noise, then a man with an un-regional accent said something about a "Diabetes" company. I promptly hung up.
About a month ago, these same people called my home phone 4 times in a 3 hour period between 8 and 11am. It might have been a different number(Cullman, AL). I blocked my cell phone caller ID and called it back. It was a man with a foreign accent talking about Diabetes. I asked to have my home number removed. Less than 30 minutes later, they called AGAIN!