Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2005-09-27
2009-10-13
Hsu, Alpus H (Department: 2419)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S395520, C707S793000, C709S203000
Reexamination Certificate
active
07602767
ABSTRACT:
Upon receiving, from a source IP terminal, a DNS packet that includes destination NAPTR query data with a keyword, an ENUM server compares the keyword with a keyword of a destination IP terminal stored in a keyword database. When the keywords are identical, the ENUM server generates a reply packet that includes NAPTR records, excluding the keyword, of the destination IP terminal registered in the NAPTR database. When the keywords are not identical, on the other hand, the ENUM server generates a reply packet indicating “No corresponding data.” Then, the ENUM server returns the generated reply packet to the source IP terminal.
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ets/projects/Westnet/prev-mtg/200307.meeting/2003.Presentations/enum.ppt>.
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Kobayashi Kazuto
Miyajima Akira
Greenblum & Bernstein P.L.C.
Hsu Alpus H
Panasonic Corporation
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