EVERYDAY, MANY MANY times a day. Relentless. Rings 3 times, never even activates answering machine (takes 4 rings for that). Even when we answer, no one responds on other end. Assume it is a bot call, but is ridiculously annoying, especially when my husband is home, sick and trying to sleep off his chemotherapy side effects. DNC registry is a total, ineffective joke, so doesn't matter that we've been on it for a long time.