I've received calls from this number three times in three days. The call quality is always poor.  Each time, the caller asks by name for someone who hasn't worked here in over a year (despite me informing them of such the first two times they called).  The first two times, they said they were calling from Dell regarding data centers--that is all the information I could get out of them, as they would not provide a message or callback number.  The third time, I asked them to please remove our number from their calling list.