Jabberdog is a static calling list that will call a list by itself start to finish. When a Jabberdog calls, a number of prerecorded messages will play for the caller or answering machine. The caller if present can select from a few options talk with a live rep, request more information by email or place on do not call list. The Jabberdog is not perfect with it's detection of either people or answering machines. It will recognize either a live person or answering machine with roughly a 70 percent success ratio. It will either work well with either recognizing people or answering machines but not both.