I got these calls for a security system also from another phone number with the same caller ID and saw a comment to call 866-246-7196 scam. They confirmed both caller's phone numbers on their list and then added my receiving phone number on the do not call list. It's been a four days and I haven't gotten any more calls.
 Aug 03rd, 2013
No Message left from this number, but when I called back it wanted to know my name and for me to leave a message for them. I left no message.
 Aug 01st, 2013