A utility for enabling real-time, point-to-point communications over computer networks between users having dynamically assigned Internet Protocol addresses includes the ability to identify incoming communications, and, based on the identity of the incoming communication, selectively responding. In one...http://www.google.de/patents/US7149208?utm_source=gb-gplus-sharePatent US7149208 - Method and apparatus for providing caller identification based responses in a computer telephony environment
