The present invention is directed to a system and method for routing a call to an alternate destination associated with a subscriber of a universal number service, based upon the selection of the calling party. For example, the subscriber may combine access to multiple residential and business telephone...http://www.google.de/patents/US6771761?utm_source=gb-gplus-sharePatent US6771761 - System and method for caller-selectable call routing from a single telephone number
