The source of my confusion was that in using Nomorobo, it is insisted that you set the rumber of rings to pick up for Nomorobo as the same as your phone number. Implying that your phone voicemail did, actually, pick up. Mine does not. I guess the point is that if you do have voicemail turned on, you want to make sure that Nomorobo picks up before your voicemail does. Of course, if Nomorobo picks up on the first ring, it seems unlikely that you have your voicemail set up to pick up before that.