I keep getting repeated calls on my cell phone (ATT Wireless) from this number 806-441-4334 (about ten in a row so far this morning).  When you answer it asks that you press a button to accept the call, which I did not of course.  I can not find anything on this number in the reverse directory, but the area code belongs to Amarillo TX.  Be careful not to accept calls from numbers you don't expect.  It may be a scam of some sort.