I got a call from this number this evening at 5 pm. When I answered I heard a low beep and then it was like someone was there but not saying anything. I laid the phone down without hanging it up and let them listen to my tv for about 10 minutes before I disconnected. I called the number back (using a blocked number) and only got a recording saying this persons extension was not available and please leave a voice mail...so I just sat there without speaking until it disconnected...then I repeatedly did that until I finally got a message saying their voicemail box was full. This number is VERY similar to one that called here at 5:30 this morning and hung on me when I answered...that number was 205-660-3310...and when I called that number back this morning I got the very same recorded message.