Received a call at work, from this number, with a callerid of TELEVERDE.  A quick google search brought up among others, a wiki link that had, "Televerde is a business-to-business lead generation agency. Based in Phoenix, Arizona, the company was founded in 1995".  I dropped any further searching at that point, not having any interest in lead generation.

No message left.

These people constantly call and when I answer they say nothing for a couple of seconds and then hang up. Next time they call, I will answer and immediatley hang up. And I will do it everytime.

A lady called in 2 times right in a row, and asked for our Treasury Manager and then our Accounting Manager. When I told her to give me a moment while I looked up the names in our director, she sighed loudly and acted annoyed with me. This is clearly some kind of sales call, and she is just trying to get through to different people. This number will go on my blocked list.

Called 1 ring and hung up. No voice mail.