A data network to telephone network gateway (16) and an end-user computing device and method used by these devices are disclosed (26). The gateway (16) is in communication with both a data network (10) and a telephone network (12). The computing device (26) is in communication with the data network (10)....http://www.google.de/patents/US6253249?utm_source=gb-gplus-sharePatent US6253249 - Method and devices for bridging data and telephone networks
