I have been getting constant calls from this number. When I say constant....I mean 4-6 in an hour. I tried something today and so far it's working. I haven't had one call all afternoon and evening. This is what I did. I was furious at how many times they were calling. I dialed the number and no one answered, it just kept ringing......so I laid it on my kitchen countertop and let it ring on their end.....and ring....and ring. Finally it stops ringing and goes to beeping and then no sounds. What is happening is it is tying up their line and they can't call out on that line. So after about 15 minutes or whenever I walk by my handset......I hang it up and it redial and do it all over again. I go about my day while it is ringing them and then dead air and so on.  I did this for several hours and what is great is ...it doesn't take any time at all on my part. I haven't heard from them today. If everyone does that it will tie up every line they have because I think they have about 3 lines they are calling out on.