I keep getting phone calls to my cell phone that sounds like it is coming from a fax. The calls are coming from 979-775-2010, 2079, 2059, and 0248.  This is not only annoying it is down right rude.

Calls register as many different last 4 numbers.  2010, 2048, 2079, 2059.  Whether answering the call or letting it go to voice mail, there is a silence then a beep and that's it.  Once a call comes in, then there are 3 or 4 more in quick succession.  Calls started about 4/28/09 and continue.  When try to return the call it simply beeps.  Very aggrevating.