A method of retrieving a tel URL regarding a first communication node. The method includes receiving a text identifier corresponding to the first communication node from a user, sending a query including the text identifier to a second communication node capable of resolving the query, receiving a response...http://www.google.co.uk/patents/US20030074461?utm_source=gb-gplus-sharePatent US20030074461 - Method of mapping names or identifiers to telecommunications network resource locations
