Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2005-07-19
2008-10-21
Matar, Ahmad F. (Department: 2614)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C379S373020, C379S373030, C379S375010
Reexamination Certificate
active
07440444
ABSTRACT:
An IP telephone system includes a source IP telephone apparatus, a destination telephone apparatus, a Web server and an ENUM server. The IP telephone apparatuses are connected to an IP network. The Web server stores ring tone information corresponding to a telephone number assigned to the source or destination IP telephone apparatus. The ENUM server stores a NAPTR resource record in which a URI specifies link data related to the ring tone information stored in the Web server. In the IP telephone system, the IP telephone apparatus that has received a call transmits, to the ENUM server, a query for a NAPTR record corresponding to an intended recipient's telephone number. The IP telephone apparatus then transmits, to the Web server, a request for the ring tone information corresponding to the intended recipient's telephone number according to the obtained NAPTR resource record, and sounds a ring tone according to the obtained ring tone information
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Nishida Toshiko
Toyoda Kiyoshi
Gay Sonia
Greenblum & Bernstein P.L.C.
Matar Ahmad F.
Matsushita Electric - Industrial Co., Ltd.
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