A personal Interactive Voice Response (IVR) system includes a plurality of IVR servers communicating personal IVR service node information in a network and a plurality of personal IVR service node clients coupled to the plurality of IVR servers communicating the personal IVR service node information....http://www.google.de/patents/US6876727?utm_source=gb-gplus-sharePatent US6876727 - Voice over IP method for developing interactive voice response system