Patent ID: 7944912

Claim:
An Internet Protocol (IP) telephone number query system, comprising: a terminal that displays a call recipient profile hypertext markup language (html) on a window of a browser, the call recipient profile html being assigned a Hypertext Markup Language (HTML) document file name; a Web server that includes a phonebook searcher having a plurality of call recipient profile htmls and returns a selected call recipient profile html in response to a request from the terminal; and a Telephone Number Mapping (ENUM) server, that comprises: a database that stores a plurality of Naming Authority Pointer (NAPTR) resource records in association with an ENUM domain name, a NAPTR resource record of the plurality of NPTR resource records containing a Uniform Resource Identifier (URI) that at least includes a telephone number and a HTML document file name; a query issuer that searches the database in response to a query by an ENUM domain name and returns a NAPTR resource record corresponding to the ENUM domain name; and a reversed query issuer that searches the database in response to a query by a URI of a HTML document file name and returns a URI of a telephone number corresponding to the ENUM domain name having the URI of the HTML document file name, wherein the ENUM server returns a URI of a telephone number corresponding to the URI of the HTML document file name to the Web server when the ENUM server receives the query by a URI of the HTML document file name used to display the call recipient profile html on a display of the terminal, from the phonebook searcher.