This number keeps calling and when I answer a voice with an accent says "Hallo? hallo? hallo?" I answered about 4 times - they never respond to me saying hello to them or asking who they are. I have received about 20 more calls from them in the last 2 hours - the answering machine was capturing them after I quit answering and only 2 times did they do the "hallo, hallo?" thing again - most of the calls they hung up before the answer machine picked up. I had to turn off the phone for now as I am going to do a conference call and can't have it keep ringing.