Received a call from the same number yesterday. They claimed to be from one of my OEM's and was trying to get to my through one of my VP's but would not leave any name, number or reason for their call. Simply stated they would try back at another time. When I tried to return the call it just rang 5 times and then went to a busy signal. Based on the comments above, I am programing our voice switch to fwd them to time and temp. Ha, ha!