just call and answer no one there

Recieved 3 calls from this number today. there was not anybody talking. They hung up 10 or 15 secs later

Received six calls yesterday (April 25, 2011) and one call today at 9:58 am, so far, on my mobile phone.  I did not answer the calls since I did not recognize the number and since I pay for each inbound call.

The caller did not leave any voice message so I assume it is not a legitimate call.

Very annoying.

Well, the calls keep coming.  Total of eight calls yesterday, 4/26/2011 and so far today one call.

Got 6 calls yesterday from this number and 4 so far today. The one's I answered from yesterday just disconnected after about 6 seconds. I refused to answer it.  I tried calling the number from a phone that I do not get billed long distance for and there was an auto attendant that answered and said press 1 to talk to customer service and press 2 to be added to a do not call list.  I did nothing as I have no idea if this is a scam or what at this point as no one seems to have gotten any info out of this.  I hope these calls stop soon as I am getting quite upset about it.