IP telephone system and calling method

Details IP telephone system and calling method IP telephone system and calling method

2011-05-17

2011-05-17

Ramakrishnaiah, Melur (Department: 2614)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C379S201010, C379S202010, C379S201030, C379S201040, C379S201050, C709S203000, C709S216000, C709S218000, C709S219000, C709S226000

Reexamination Certificate

active

07944912

ABSTRACT:
An IP telephone number query system includes a terminal, a Web server, and an ENUM server. The terminal displays a call recipient profile hypertext markup language (html) that is assigned a HTML document file name. The Web server includes a phonebook searcher that has a plurality of call recipient profile htmls, and returns a selected call recipient profile html in response to a request from the terminal. The ENUM server has a database, a query issuer and a reversed query issuer. The database stores a plurality of NAPTR resource records in association with an ENUM domain name, each NAPTR resource record containing a URI that at least includes a telephone number and a HTML document file name. The query issuer 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. The reversed query issuer 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.

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