Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2005-07-05
2005-07-05
Kizou, Hassan (Department: 2662)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S395210, C370S395610
Reexamination Certificate
active
06914900
ABSTRACT:
Disclosed is a method of connecting a telephone via an IP network. An exchange on the originating side (1) evaluates voice quality along a route through the IP network to an exchange on a terminating side when a call originate request has been issued to connect the originating telephone via the IP network, (2) connects the originating telephone to the terminating telephone via the above-mentioned route if the voice quality is good, and (3) if the voice quality is bad, controls a connection of the telephone in accordance with a command from the caller or by selecting another route automatically such as an alternative route through the IP network or another route through a network other than the IP network.
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patent: 2003/0198218 (2003-10-01), Farris et al.
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Komatsu Satoru
Yamada Tsutomu
Yamagishi Masahiko
Fujitsu Limited
Katten Muchin Zavis & Rosenman
Kizou Hassan
Sefcheck Gregory
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